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-rw-r--r--doc/html/Tutor/Contents.html103
-rw-r--r--doc/html/Tutor/ContentsAdd.html106
-rw-r--r--doc/html/Tutor/ContentsAdv.html105
-rw-r--r--doc/html/Tutor/ContentsFull.html100
-rw-r--r--doc/html/Tutor/ContentsIntro.html106
-rw-r--r--doc/html/Tutor/Copyright.html80
-rw-r--r--doc/html/Tutor/Graphics/AddInfo.gifbin0 -> 274 bytes
-rw-r--r--doc/html/Tutor/Graphics/AdvTopics.gifbin0 -> 240 bytes
-rw-r--r--doc/html/Tutor/Graphics/BLANK.gifbin0 -> 164 bytes
-rw-r--r--doc/html/Tutor/Graphics/ChunkExt.gifbin0 -> 333 bytes
-rw-r--r--doc/html/Tutor/Graphics/CompDTypes.gifbin0 -> 315 bytes
-rw-r--r--doc/html/Tutor/Graphics/Copy.gifbin0 -> 284 bytes
-rw-r--r--doc/html/Tutor/Graphics/CreateAttr.gifbin0 -> 272 bytes
-rw-r--r--doc/html/Tutor/Graphics/CreateDset1.gifbin0 -> 283 bytes
-rw-r--r--doc/html/Tutor/Graphics/CreateDset2.gifbin0 -> 280 bytes
-rw-r--r--doc/html/Tutor/Graphics/CreateFile.gifbin0 -> 269 bytes
-rw-r--r--doc/html/Tutor/Graphics/CreateGrp1.gifbin0 -> 270 bytes
-rw-r--r--doc/html/Tutor/Graphics/CreateGrp2.gifbin0 -> 270 bytes
-rw-r--r--doc/html/Tutor/Graphics/Examples.gifbin0 -> 297 bytes
-rw-r--r--doc/html/Tutor/Graphics/FileOrg.gifbin0 -> 273 bytes
-rw-r--r--doc/html/Tutor/Graphics/FullTOC1.gifbin0 -> 202 bytes
-rw-r--r--doc/html/Tutor/Graphics/FullTOC2.gifbin0 -> 206 bytes
-rw-r--r--doc/html/Tutor/Graphics/Glossary.gifbin0 -> 238 bytes
-rw-r--r--doc/html/Tutor/Graphics/H5API.gifbin0 -> 237 bytes
-rw-r--r--doc/html/Tutor/Graphics/Intro.gifbin0 -> 244 bytes
-rw-r--r--doc/html/Tutor/Graphics/IntroTopics.gifbin0 -> 256 bytes
-rw-r--r--doc/html/Tutor/Graphics/Iterate.gifbin0 -> 270 bytes
-rw-r--r--doc/html/Tutor/Graphics/MountFile.gifbin0 -> 254 bytes
-rw-r--r--doc/html/Tutor/Graphics/Quiz.gifbin0 -> 202 bytes
-rw-r--r--doc/html/Tutor/Graphics/QuizAns.gifbin0 -> 256 bytes
-rw-r--r--doc/html/Tutor/Graphics/RdWrDataset.gifbin0 -> 305 bytes
-rwxr-xr-xdoc/html/Tutor/Graphics/RefObject.gifbin0 -> 292 bytes
-rwxr-xr-xdoc/html/Tutor/Graphics/RefRegion.gifbin0 -> 296 bytes
-rw-r--r--doc/html/Tutor/Graphics/References.gifbin0 -> 240 bytes
-rw-r--r--doc/html/Tutor/Graphics/SelectElemCp.gifbin0 -> 307 bytes
-rw-r--r--doc/html/Tutor/Graphics/SelectHyp.gifbin0 -> 308 bytes
-rw-r--r--doc/html/Tutor/Graphics/TOC.gifbin0 -> 306 bytes
-rw-r--r--doc/html/Tutor/Graphics/TOCFull.gifbin0 -> 204 bytes
-rw-r--r--doc/html/Tutor/Graphics/TOCShort.gifbin0 -> 215 bytes
-rw-r--r--doc/html/Tutor/Graphics/TitlePg.gifbin0 -> 300 bytes
-rw-r--r--doc/html/Tutor/Graphics/Utilities.gifbin0 -> 222 bytes
-rw-r--r--doc/html/Tutor/answers.html216
-rw-r--r--doc/html/Tutor/api.html140
-rw-r--r--doc/html/Tutor/bighdf2sp.JPGbin0 -> 8712 bytes
-rw-r--r--doc/html/Tutor/compound.html378
-rw-r--r--doc/html/Tutor/crtatt.html267
-rw-r--r--doc/html/Tutor/crtdat.html340
-rw-r--r--doc/html/Tutor/crtfile.html224
-rw-r--r--doc/html/Tutor/crtgrp.html167
-rw-r--r--doc/html/Tutor/crtgrpar.html246
-rw-r--r--doc/html/Tutor/crtgrpd.html191
-rw-r--r--doc/html/Tutor/examples/h5_compound.c153
-rw-r--r--doc/html/Tutor/examples/h5_copy.c148
-rw-r--r--doc/html/Tutor/examples/h5_crtatt.c46
-rw-r--r--doc/html/Tutor/examples/h5_crtdat.c34
-rw-r--r--doc/html/Tutor/examples/h5_crtfile.c19
-rw-r--r--doc/html/Tutor/examples/h5_crtgrp.c24
-rw-r--r--doc/html/Tutor/examples/h5_crtgrpar.c32
-rw-r--r--doc/html/Tutor/examples/h5_crtgrpd.c74
-rw-r--r--doc/html/Tutor/examples/h5_extend.c141
-rw-r--r--doc/html/Tutor/examples/h5_hyperslab.c192
-rw-r--r--doc/html/Tutor/examples/h5_iterate.c111
-rw-r--r--doc/html/Tutor/examples/h5_mount.c119
-rw-r--r--doc/html/Tutor/examples/h5_rdwt.c37
-rw-r--r--doc/html/Tutor/examples/h5_read.c136
-rw-r--r--doc/html/Tutor/examples/h5_ref2objr.c93
-rw-r--r--doc/html/Tutor/examples/h5_ref2objw.c120
-rw-r--r--doc/html/Tutor/examples/h5_ref2regr.c119
-rw-r--r--doc/html/Tutor/examples/h5_ref2regw.c112
-rw-r--r--doc/html/Tutor/examples/h5_reference.c146
-rw-r--r--doc/html/Tutor/extend.html314
-rw-r--r--doc/html/Tutor/fileorg.html103
-rw-r--r--doc/html/Tutor/glossary.html234
-rw-r--r--doc/html/Tutor/img001.gifbin0 -> 635 bytes
-rw-r--r--doc/html/Tutor/img002.gifbin0 -> 954 bytes
-rw-r--r--doc/html/Tutor/img003.gifbin0 -> 928 bytes
-rw-r--r--doc/html/Tutor/img004.gifbin0 -> 1644 bytes
-rw-r--r--doc/html/Tutor/img005.gifbin0 -> 1812 bytes
-rw-r--r--doc/html/Tutor/index.html29
-rw-r--r--doc/html/Tutor/intro.html81
-rw-r--r--doc/html/Tutor/iterate.html303
-rw-r--r--doc/html/Tutor/mount.html304
-rw-r--r--doc/html/Tutor/questions.html142
-rw-r--r--doc/html/Tutor/rdwt.html259
-rw-r--r--doc/html/Tutor/references.html65
-rw-r--r--doc/html/Tutor/reftoobj.html478
-rw-r--r--doc/html/Tutor/reftoreg.html545
-rw-r--r--doc/html/Tutor/select.html452
-rw-r--r--doc/html/Tutor/selectc.html296
-rw-r--r--doc/html/Tutor/title.html99
-rw-r--r--doc/html/Tutor/util.html89
91 files changed, 8418 insertions, 0 deletions
diff --git a/doc/html/Tutor/Contents.html b/doc/html/Tutor/Contents.html
new file mode 100644
index 0000000..49c4a32
--- /dev/null
+++ b/doc/html/Tutor/Contents.html
@@ -0,0 +1,103 @@
+<html>
+
+<body bgcolor="#BBFFFF">
+
+<!--
+The following tag is for use only in the distributed doc set.
+Remove (or comment out) when served from HDF web server.
+-->
+<center>
+<font size=-1><a href="../index.html" target=_top>Return to HDF5 Doc Set</a></font>
+</center>
+
+<hr>
+
+<!--
+<A HREF="READ1ST.HTML" Target="RdFirstWin" onClick="window.open(&quot;READ1ST.HTML&quot;,&quot;RdFirstWin&quot;,&quot;toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=yes,resizable=1,width=500,height=250,titlebar=yes&quot;)"><IMG SRC="GRAPHICS/READ1ST.GIF" BORDER=0 ALT="Read this first!"></A>
+-->
+
+
+<a href="title.html" TARGET="CONTENT"><IMG SRC="Graphics/TitlePg.gif" BORDER=0 ALT="Tutorial Title Page"></a>
+<br>
+
+<hr>
+<a href="ContentsIntro.html" TARGET="BUTTONS"><IMG SRC="Graphics/IntroTopics.gif" BORDER=0 ALT="Introductory Topics"></a>
+<br>
+<!--
+<a href="intro.html" TARGET="CONTENT"><IMG SRC="Graphics/Intro.gif" BORDER=0 ALT="Introduction"></a>
+<br>
+<a href="fileorg.html" TARGET="CONTENT"><img src="Graphics/FileOrg.gif" BORDER=0 ALT="HDF5 File Organization"></a>
+<br>
+<a href="api.html" TARGET="CONTENT"><IMG SRC="Graphics/H5API.gif" BORDER=0 ALT="The HDF5 API"></a>
+<br>
+<a href="crtfile.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateFile.gif" BORDER=0 ALT="Creating an HDF5 File"></a>
+<br>
+<a href="crtdat.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateDset1.gif" BORDER=0 ALT="Creating a Dataset"></a>
+<br>
+<a href="rdwt.html" TARGET="CONTENT"><IMG SRC="Graphics/RdWrDataset.gif" BORDER=0 ALT="Reading from and Writing to a Dataset"></a>
+<br>
+<a href="crtatt.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateAttr.gif" BORDER=0 ALT="Creating an Attribute"></a>
+<br>
+<a href="crtgrp.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateGrp1.gif" BORDER=0 ALT="Creating a Group"></a>
+<br>
+<a href="crtgrpar.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateGrp2.gif" BORDER=0 ALT="Creating Groups Using Absolute and Relative Names"></a>
+<br>
+<a href="crtgrpd.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateDset2.gif" BORDER=0 ALT="Creating Datasets in a Group"></a>
+
+
+<br>
+<br>
+<a href="questions.html" TARGET="CONTENT"><IMG SRC="Graphics/Quiz.gif" BORDER=0 ALT="Quiz Questions"></a>
+<br>
+<a href="answers.html" TARGET="CONTENT"><IMG SRC="Graphics/QuizAns.gif" BORDER=0 ALT="Quiz Answers"></a>
+-->
+
+<hr>
+<a href="ContentsAdv.html" TARGET="BUTTONS"><IMG SRC="Graphics/AdvTopics.gif" BORDER=0 ALT="Advanced Topics"></a>
+<!--
+<br>
+<a href="compound.html" TARGET="CONTENT"><IMG SRC="Graphics/CompDTypes.gif" BORDER=0 ALT="Compound Data Types"></a>
+<br>
+<a href="select.html" TARGET="CONTENT"><IMG SRC="Graphics/SelectHyp.gif" BORDER=0 ALT="Selections Using H5Sselect_hyperslab"></a>
+<br>
+<a href="selectc.html" TARGET="CONTENT"><IMG SRC="Graphics/SelectElemCp.gif" BORDER=0 ALT="Selections Using H5Sselect_elements and H5Scopy"></a>
+<br>
+<a href="reftoobj.html" TARGET="CONTENT"><IMG SRC="Graphics/RefObject.gif" BORDER=0 ALT="References to Objects"></a>
+<br>
+<a href="reftoreg.html" TARGET="CONTENT"><IMG SRC="Graphics/RefRegion.gif" BORDER=0 ALT="References to Dataset Regions"></a>
+<br>
+<a href="extend.html" TARGET="CONTENT"><IMG SRC="Graphics/ChunkExt.gif" BORDER=0 ALT="Chunking and Extendible Datasets"></a>
+<br>
+<a href="mount.html" TARGET="CONTENT"><IMG SRC="Graphics/MountFile.gif" BORDER=0 ALT="Mounting Files"></a>
+<br>
+<a href="iterate.html" TARGET="CONTENT"><IMG SRC="Graphics/Iterate.gif" BORDER=0 ALT="Group Iteration"></a>
+-->
+
+
+<hr>
+<a href="ContentsAdd.html" TARGET="BUTTONS"><IMG SRC="Graphics/AddInfo.gif" BORDER=0 ALT="Additional Information"></a>
+<!--
+<br>
+<a href="util.html" TARGET="CONTENT"><IMG SRC="Graphics/Utilities.gif" BORDER=0 ALT="HDF5 Utilities -- h5ls and h5dump"></a>
+<br>
+<a href="glossary.html" TARGET="CONTENT"><IMG SRC="Graphics/Glossary.gif" BORDER=0 ALT="Glossary"></a>
+<br>
+<a href="references.html" TARGET="CONTENT"><IMG SRC="Graphics/References.gif" BORDER=0 ALT="References"></a>
+<br>
+<a href="examples/" TARGET="CONTENT"><IMG SRC="Graphics/Examples.gif" BORDER=0 ALT="Example Programs"></a>
+-->
+
+
+<hr>
+<a href="ContentsFull.html" TARGET="BUTTONS"><IMG SRC="Graphics/TOCFull.gif" BORDER=0 ALT="Full TOC"></a>
+<br>
+
+
+<hr>
+<br>
+<a href="Copyright.html" TARGET="CONTENT"><IMG SRC="Graphics/Copy.gif" BORDER=0 ALT="Copyright, Etc."></a><br>
+
+
+</body>
+</html>
+
diff --git a/doc/html/Tutor/ContentsAdd.html b/doc/html/Tutor/ContentsAdd.html
new file mode 100644
index 0000000..78a1386
--- /dev/null
+++ b/doc/html/Tutor/ContentsAdd.html
@@ -0,0 +1,106 @@
+<html>
+
+<body bgcolor="#BBFFFF">
+
+
+<!--
+The following tag is for use only in the distributed doc set.
+Remove (or comment out) when served from HDF web server.
+-->
+<center>
+<font size=-1><a href="../index.html" target=_top>Return to HDF5 Doc Set</a></font>
+</center>
+
+<hr>
+
+<!--
+<A HREF="READ1ST.HTML" Target="RdFirstWin" onClick="window.open(&quot;READ1ST.HTML&quot;,&quot;RdFirstWin&quot;,&quot;toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=yes,resizable=1,width=500,height=250,titlebar=yes&quot;)"><IMG SRC="GRAPHICS/READ1ST.GIF" BORDER=0 ALT="Read this first!"></A>
+-->
+
+
+<a href="Contents.html" TARGET="BUTTONS"><IMG SRC="Graphics/TOCShort.gif" BORDER=0 ALT="(Short TOC)"></a>
+<br>
+<hr>
+
+<a href="title.html" TARGET="CONTENT"><IMG SRC="Graphics/TitlePg.gif" BORDER=0 ALT="Tutorial Title Page"></a>
+<br>
+
+<hr>
+<a href="ContentsIntro.html" TARGET="BUTTONS"><IMG SRC="Graphics/IntroTopics.gif" BORDER=0 ALT="Introductory Topics"></a>
+<!--
+<a href="intro.html" TARGET="CONTENT"><IMG SRC="Graphics/Intro.gif" BORDER=0 ALT="Introduction"></a>
+<br>
+<br>
+<a href="fileorg.html" TARGET="CONTENT"><img src="Graphics/FileOrg.gif" BORDER=0 ALT="HDF5 File Organization"></a>
+<br>
+<a href="api.html" TARGET="CONTENT"><IMG SRC="Graphics/H5API.gif" BORDER=0 ALT="The HDF5 API"></a>
+<br>
+<a href="crtfile.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateFile.gif" BORDER=0 ALT="Creating an HDF5 File"></a>
+<br>
+<a href="crtdat.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateDset1.gif" BORDER=0 ALT="Creating a Dataset"></a>
+<br>
+<a href="rdwt.html" TARGET="CONTENT"><IMG SRC="Graphics/RdWrDataset.gif" BORDER=0 ALT="Reading from and Writing to a Dataset"></a>
+<br>
+<a href="crtatt.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateAttr.gif" BORDER=0 ALT="Creating an Attribute"></a>
+<br>
+<a href="crtgrp.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateGrp1.gif" BORDER=0 ALT="Creating a Group"></a>
+<br>
+<a href="crtgrpar.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateGrp2.gif" BORDER=0 ALT="Creating Groups Using Absolute and Relative Names"></a>
+<br>
+<a href="crtgrpd.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateDset2.gif" BORDER=0 ALT="Creating Datasets in a Group"></a>
+
+<br>
+<br>
+<a href="questions.html" TARGET="CONTENT"><IMG SRC="Graphics/Quiz.gif" BORDER=0 ALT="Quiz Questions"></a>
+<br>
+<a href="answers.html" TARGET="CONTENT"><IMG SRC="Graphics/QuizAns.gif" BORDER=0 ALT="Quiz Answers"></a>
+-->
+
+
+<hr>
+<a href="ContentsAdv.html" TARGET="BUTTONS"><IMG SRC="Graphics/AdvTopics.gif" BORDER=0 ALT="Advanced Topics"></a>
+<!--
+<br>
+<a href="compound.html" TARGET="CONTENT"><IMG SRC="Graphics/CompDTypes.gif" BORDER=0 ALT="Compound Data Types"></a>
+<br>
+<a href="select.html" TARGET="CONTENT"><IMG SRC="Graphics/SelectHyp.gif" BORDER=0 ALT="Selections Using H5Sselect_hyperslab"></a>
+<br>
+<a href="selectc.html" TARGET="CONTENT"><IMG SRC="Graphics/SelectElemCp.gif" BORDER=0 ALT="Selections Using H5Sselect_elements and H5Scopy"></a>
+<br>
+<a href="reftoobj.html" TARGET="CONTENT"><IMG SRC="Graphics/RefObject.gif" BORDER=0 ALT="References to Objects"></a>
+<br>
+<a href="reftoreg.html" TARGET="CONTENT"><IMG SRC="Graphics/RefRegion.gif" BORDER=0 ALT="References to Dataset Regions"></a>
+<br>
+<a href="extend.html" TARGET="CONTENT"><IMG SRC="Graphics/ChunkExt.gif" BORDER=0 ALT="Chunking and Extendible Datasets"></a>
+<br>
+<a href="mount.html" TARGET="CONTENT"><IMG SRC="Graphics/MountFile.gif" BORDER=0 ALT="Mounting Files"></a>
+<br>
+<a href="iterate.html" TARGET="CONTENT"><IMG SRC="Graphics/Iterate.gif" BORDER=0 ALT="Group Iteration"></a>
+-->
+
+
+<hr>
+<IMG SRC="Graphics/AddInfo.gif" BORDER=0 ALT="Additional Information">
+<br>
+<a href="util.html" TARGET="CONTENT"><IMG SRC="Graphics/Utilities.gif" BORDER=0 ALT="HDF5 Utilities -- h5ls and h5dump"></a>
+<br>
+<a href="glossary.html" TARGET="CONTENT"><IMG SRC="Graphics/Glossary.gif" BORDER=0 ALT="Glossary"></a>
+<br>
+<a href="references.html" TARGET="CONTENT"><IMG SRC="Graphics/References.gif" BORDER=0 ALT="References"></a>
+<br>
+<a href="examples/" TARGET="CONTENT"><IMG SRC="Graphics/Examples.gif" BORDER=0 ALT="Example Programs"></a>
+
+
+<hr>
+<a href="ContentsFull.html" TARGET="BUTTONS"><IMG SRC="Graphics/TOCFull.gif" BORDER=0 ALT="Full TOC"></a>
+<br>
+
+
+<hr>
+<br>
+<a href="Copyright.html" TARGET="CONTENT"><IMG SRC="Graphics/Copy.gif" BORDER=0 ALT="Copyright, Etc."></a><br>
+
+
+</body>
+</html>
+
diff --git a/doc/html/Tutor/ContentsAdv.html b/doc/html/Tutor/ContentsAdv.html
new file mode 100644
index 0000000..b2ac014
--- /dev/null
+++ b/doc/html/Tutor/ContentsAdv.html
@@ -0,0 +1,105 @@
+<html>
+
+<body bgcolor="#BBFFFF">
+
+
+<!--
+The following tag is for use only in the distributed doc set.
+Remove (or comment out) when served from HDF web server.
+-->
+<center>
+<font size=-1><a href="../index.html" target=_top>Return to HDF5 Doc Set</a></font>
+</center>
+
+<hr>
+
+<!--
+<A HREF="READ1ST.HTML" Target="RdFirstWin" onClick="window.open(&quot;READ1ST.HTML&quot;,&quot;RdFirstWin&quot;,&quot;toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=yes,resizable=1,width=500,height=250,titlebar=yes&quot;)"><IMG SRC="GRAPHICS/READ1ST.GIF" BORDER=0 ALT="Read this first!"></A>
+-->
+
+<a href="Contents.html" TARGET="BUTTONS"><IMG SRC="Graphics/TOCShort.gif" BORDER=0 ALT="(Short TOC)"></a>
+<br>
+<hr>
+
+<a href="title.html" TARGET="CONTENT"><IMG SRC="Graphics/TitlePg.gif" BORDER=0 ALT="Tutorial Title Page"></a>
+<br>
+
+<hr>
+<a href="ContentsIntro.html" TARGET="BUTTONS"><IMG SRC="Graphics/IntroTopics.gif" BORDER=0 ALT="Introductory Topics"></a>
+<!--
+<br>
+<a href="intro.html" TARGET="CONTENT"><IMG SRC="Graphics/Intro.gif" BORDER=0 ALT="Introduction"></a>
+<br>
+<a href="fileorg.html" TARGET="CONTENT"><img src="Graphics/FileOrg.gif" BORDER=0 ALT="HDF5 File Organization"></a>
+<br>
+<a href="api.html" TARGET="CONTENT"><IMG SRC="Graphics/H5API.gif" BORDER=0 ALT="The HDF5 API"></a>
+<br>
+<a href="crtfile.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateFile.gif" BORDER=0 ALT="Creating an HDF5 File"></a>
+<br>
+<a href="crtdat.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateDset1.gif" BORDER=0 ALT="Creating a Dataset"></a>
+<br>
+<a href="rdwt.html" TARGET="CONTENT"><IMG SRC="Graphics/RdWrDataset.gif" BORDER=0 ALT="Reading from and Writing to a Dataset"></a>
+<br>
+<a href="crtatt.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateAttr.gif" BORDER=0 ALT="Creating an Attribute"></a>
+<br>
+<a href="crtgrp.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateGrp1.gif" BORDER=0 ALT="Creating a Group"></a>
+<br>
+<a href="crtgrpar.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateGrp2.gif" BORDER=0 ALT="Creating Groups Using Absolute and Relative Names"></a>
+<br>
+<a href="crtgrpd.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateDset2.gif" BORDER=0 ALT="Creating Datasets in a Group"></a>
+
+
+<br>
+<br>
+<a href="questions.html" TARGET="CONTENT"><IMG SRC="Graphics/Quiz.gif" BORDER=0 ALT="Quiz Questions"></a>
+<br>
+<a href="answers.html" TARGET="CONTENT"><IMG SRC="Graphics/QuizAns.gif" BORDER=0 ALT="Quiz Answers"></a>
+-->
+
+<hr>
+<IMG SRC="Graphics/AdvTopics.gif" BORDER=0 ALT="Advanced Topics">
+<br>
+<a href="compound.html" TARGET="CONTENT"><IMG SRC="Graphics/CompDTypes.gif" BORDER=0 ALT="Compound Data Types"></a>
+<br>
+<a href="select.html" TARGET="CONTENT"><IMG SRC="Graphics/SelectHyp.gif" BORDER=0 ALT="Selections Using H5Sselect_hyperslab"></a>
+<br>
+<a href="selectc.html" TARGET="CONTENT"><IMG SRC="Graphics/SelectElemCp.gif" BORDER=0 ALT="Selections Using H5Sselect_elements and H5Scopy"></a>
+<br>
+<a href="reftoobj.html" TARGET="CONTENT"><IMG SRC="Graphics/RefObject.gif" BORDER=0 ALT="References to Objects"></a>
+<br>
+<a href="reftoreg.html" TARGET="CONTENT"><IMG SRC="Graphics/RefRegion.gif" BORDER=0 ALT="References to Dataset Regions"></a>
+<br>
+<a href="extend.html" TARGET="CONTENT"><IMG SRC="Graphics/ChunkExt.gif" BORDER=0 ALT="Chunking and Extendible Datasets"></a>
+<br>
+<a href="mount.html" TARGET="CONTENT"><IMG SRC="Graphics/MountFile.gif" BORDER=0 ALT="Mounting Files"></a>
+<br>
+<a href="iterate.html" TARGET="CONTENT"><IMG SRC="Graphics/Iterate.gif" BORDER=0 ALT="Group Iteration"></a>
+
+
+<hr>
+<a href="ContentsAdd.html" TARGET="BUTTONS"><IMG SRC="Graphics/AddInfo.gif" BORDER=0 ALT="Additional Information"></a>
+<!--
+<br>
+<a href="util.html" TARGET="CONTENT"><IMG SRC="Graphics/Utilities.gif" BORDER=0 ALT="HDF5 Utilities -- h5ls and h5dump"></a>
+<br>
+<a href="glossary.html" TARGET="CONTENT"><IMG SRC="Graphics/Glossary.gif" BORDER=0 ALT="Glossary"></a>
+<br>
+<a href="references.html" TARGET="CONTENT"><IMG SRC="Graphics/References.gif" BORDER=0 ALT="References"></a>
+<br>
+<a href="examples/" TARGET="CONTENT"><IMG SRC="Graphics/Examples.gif" BORDER=0 ALT="Example Programs"></a>
+-->
+
+
+<hr>
+<a href="ContentsFull.html" TARGET="BUTTONS"><IMG SRC="Graphics/TOCFull.gif" BORDER=0 ALT="Full TOC"></a>
+<br>
+
+
+<hr>
+<br>
+<a href="Copyright.html" TARGET="CONTENT"><IMG SRC="Graphics/Copy.gif" BORDER=0 ALT="Copyright, Etc."></a><br>
+
+
+</body>
+</html>
+
diff --git a/doc/html/Tutor/ContentsFull.html b/doc/html/Tutor/ContentsFull.html
new file mode 100644
index 0000000..09cd5b9
--- /dev/null
+++ b/doc/html/Tutor/ContentsFull.html
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+<html>
+
+<body bgcolor="#BBFFFF">
+
+
+<!--
+The following tag is for use only in the distributed doc set.
+Remove (or comment out) when served from HDF web server.
+-->
+<center>
+<font size=-1><a href="../index.html" target=_top>Return to HDF5 Doc Set</a></font>
+</center>
+
+<hr>
+
+<!--
+<A HREF="READ1ST.HTML" Target="RdFirstWin" onClick="window.open(&quot;READ1ST.HTML&quot;,&quot;RdFirstWin&quot;,&quot;toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=yes,resizable=1,width=500,height=250,titlebar=yes&quot;)"><IMG SRC="GRAPHICS/READ1ST.GIF" BORDER=0 ALT="Read this first!"></A>
+-->
+
+
+<a href="Contents.html" TARGET="BUTTONS"><IMG SRC="Graphics/TOCShort.gif" BORDER=0 ALT="(Short TOC)"></a>
+<br>
+<hr>
+
+<a href="title.html" TARGET="CONTENT"><IMG SRC="Graphics/TitlePg.gif" BORDER=0 ALT="Tutorial Title Page"></a>
+<br>
+
+<hr>
+<IMG SRC="Graphics/IntroTopics.gif" BORDER=0 ALT="Introductory Topics">
+<br>
+<a href="intro.html" TARGET="CONTENT"><IMG SRC="Graphics/Intro.gif" BORDER=0 ALT="Introduction"></a>
+<br>
+<a href="fileorg.html" TARGET="CONTENT"><img src="Graphics/FileOrg.gif" BORDER=0 ALT="HDF5 File Organization"></a>
+<br>
+<a href="api.html" TARGET="CONTENT"><IMG SRC="Graphics/H5API.gif" BORDER=0 ALT="The HDF5 API"></a>
+<br>
+<a href="crtfile.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateFile.gif" BORDER=0 ALT="Creating an HDF5 File"></a>
+<br>
+<a href="crtdat.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateDset1.gif" BORDER=0 ALT="Creating a Dataset"></a>
+<br>
+<a href="rdwt.html" TARGET="CONTENT"><IMG SRC="Graphics/RdWrDataset.gif" BORDER=0 ALT="Reading from and Writing to a Dataset"></a>
+<br>
+<a href="crtatt.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateAttr.gif" BORDER=0 ALT="Creating an Attribute"></a>
+<br>
+<a href="crtgrp.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateGrp1.gif" BORDER=0 ALT="Creating a Group"></a>
+<br>
+<a href="crtgrpar.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateGrp2.gif" BORDER=0 ALT="Creating Groups Using Absolute and Relative Names"></a>
+<br>
+<a href="crtgrpd.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateDset2.gif" BORDER=0 ALT="Creating Datasets in a Group"></a>
+
+<br>
+<br>
+<a href="questions.html" TARGET="CONTENT"><IMG SRC="Graphics/Quiz.gif" BORDER=0 ALT="Quiz Questions"></a>
+<br>
+<a href="answers.html" TARGET="CONTENT"><IMG SRC="Graphics/QuizAns.gif" BORDER=0 ALT="Quiz Answers"></a>
+
+
+<hr>
+<IMG SRC="Graphics/AdvTopics.gif" BORDER=0 ALT="Advanced Topics">
+<br>
+<a href="compound.html" TARGET="CONTENT"><IMG SRC="Graphics/CompDTypes.gif" BORDER=0 ALT="Compound Data Types"></a>
+<br>
+<a href="select.html" TARGET="CONTENT"><IMG SRC="Graphics/SelectHyp.gif" BORDER=0 ALT="Selections Using H5Sselect_hyperslab"></a>
+<br>
+<a href="selectc.html" TARGET="CONTENT"><IMG SRC="Graphics/SelectElemCp.gif" BORDER=0 ALT="Selections Using H5Sselect_elements and H5Scopy"></a>
+<br>
+<a href="reftoobj.html" TARGET="CONTENT"><IMG SRC="Graphics/RefObject.gif" BORDER=0 ALT="References to Objects"></a>
+<br>
+<a href="reftoreg.html" TARGET="CONTENT"><IMG SRC="Graphics/RefRegion.gif" BORDER=0 ALT="References to Dataset Regions"></a>
+<br>
+<a href="extend.html" TARGET="CONTENT"><IMG SRC="Graphics/ChunkExt.gif" BORDER=0 ALT="Chunking and Extendible Datasets"></a>
+<br>
+<a href="mount.html" TARGET="CONTENT"><IMG SRC="Graphics/MountFile.gif" BORDER=0 ALT="Mounting Files"></a>
+<br>
+<a href="iterate.html" TARGET="CONTENT"><IMG SRC="Graphics/Iterate.gif" BORDER=0 ALT="Group Iteration"></a>
+
+
+<hr>
+<IMG SRC="Graphics/AddInfo.gif" BORDER=0 ALT="Additional Information">
+<br>
+<a href="util.html" TARGET="CONTENT"><IMG SRC="Graphics/Utilities.gif" BORDER=0 ALT="HDF5 Utilities -- h5ls and h5dump"></a>
+<br>
+<a href="glossary.html" TARGET="CONTENT"><IMG SRC="Graphics/Glossary.gif" BORDER=0 ALT="Glossary"></a>
+<br>
+<a href="references.html" TARGET="CONTENT"><IMG SRC="Graphics/References.gif" BORDER=0 ALT="References"></a>
+<br>
+<a href="examples/" TARGET="CONTENT"><IMG SRC="Graphics/Examples.gif" BORDER=0 ALT="Example Programs"></a>
+
+<hr>
+<a href="Contents.html" TARGET="BUTTONS"><IMG SRC="Graphics/TOCShort.gif" BORDER=0 ALT="(Short TOC)"></a>
+
+
+<hr>
+<br>
+<a href="Copyright.html" TARGET="CONTENT"><IMG SRC="Graphics/Copy.gif" BORDER=0 ALT="Copyright, Etc."></a><br>
+
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+</body>
+</html>
+
diff --git a/doc/html/Tutor/ContentsIntro.html b/doc/html/Tutor/ContentsIntro.html
new file mode 100644
index 0000000..5b974d1
--- /dev/null
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+<html>
+
+<body bgcolor="#BBFFFF">
+
+
+<!--
+The following tag is for use only in the distributed doc set.
+Remove (or comment out) when served from HDF web server.
+-->
+<center>
+<font size=-1><a href="../index.html" target=_top>Return to HDF5 Doc Set</a></font>
+</center>
+
+<hr>
+
+<!--
+<A HREF="READ1ST.HTML" Target="RdFirstWin" onClick="window.open(&quot;READ1ST.HTML&quot;,&quot;RdFirstWin&quot;,&quot;toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=yes,resizable=1,width=500,height=250,titlebar=yes&quot;)"><IMG SRC="GRAPHICS/READ1ST.GIF" BORDER=0 ALT="Read this first!"></A>
+-->
+
+
+<a href="Contents.html" TARGET="BUTTONS"><IMG SRC="Graphics/TOCShort.gif" BORDER=0 ALT="(Short TOC)"></a>
+<br>
+<hr>
+
+<a href="title.html" TARGET="CONTENT"><IMG SRC="Graphics/TitlePg.gif" BORDER=0 ALT="Tutorial Title Page"></a>
+<br>
+
+<hr>
+<IMG SRC="Graphics/IntroTopics.gif" BORDER=0 ALT="Introductory Topics">
+<br>
+<a href="intro.html" TARGET="CONTENT"><IMG SRC="Graphics/Intro.gif" BORDER=0 ALT="Introduction"></a>
+<br>
+<a href="fileorg.html" TARGET="CONTENT"><img src="Graphics/FileOrg.gif" BORDER=0 ALT="HDF5 File Organization"></a>
+<br>
+<a href="api.html" TARGET="CONTENT"><IMG SRC="Graphics/H5API.gif" BORDER=0 ALT="The HDF5 API"></a>
+<br>
+<a href="crtfile.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateFile.gif" BORDER=0 ALT="Creating an HDF5 File"></a>
+<br>
+<a href="crtdat.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateDset1.gif" BORDER=0 ALT="Creating a Dataset"></a>
+<br>
+<a href="rdwt.html" TARGET="CONTENT"><IMG SRC="Graphics/RdWrDataset.gif" BORDER=0 ALT="Reading from and Writing to a Dataset"></a>
+<br>
+<a href="crtatt.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateAttr.gif" BORDER=0 ALT="Creating an Attribute"></a>
+<br>
+<a href="crtgrp.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateGrp1.gif" BORDER=0 ALT="Creating a Group"></a>
+<br>
+<a href="crtgrpar.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateGrp2.gif" BORDER=0 ALT="Creating Groups Using Absolute and Relative Names"></a>
+<br>
+<a href="crtgrpd.html" TARGET="CONTENT"><IMG SRC="Graphics/CreateDset2.gif" BORDER=0 ALT="Creating Datasets in a Group"></a>
+
+<br>
+<br>
+<a href="questions.html" TARGET="CONTENT"><IMG SRC="Graphics/Quiz.gif" BORDER=0 ALT="Quiz Questions"></a>
+<br>
+<a href="answers.html" TARGET="CONTENT"><IMG SRC="Graphics/QuizAns.gif" BORDER=0 ALT="Quiz Answers"></a>
+
+
+<hr>
+<a href="ContentsAdv.html" TARGET="BUTTONS"><IMG SRC="Graphics/AdvTopics.gif" BORDER=0 ALT="Advanced Topics"></a>
+<!--
+<br>
+<a href="compound.html" TARGET="CONTENT"><IMG SRC="Graphics/CompDTypes.gif" BORDER=0 ALT="Compound Data Types"></a>
+<br>
+<a href="select.html" TARGET="CONTENT"><IMG SRC="Graphics/SelectHyp.gif" BORDER=0 ALT="Selections Using H5Sselect_hyperslab"></a>
+<br>
+<a href="selectc.html" TARGET="CONTENT"><IMG SRC="Graphics/SelectElemCp.gif" BORDER=0 ALT="Selections Using H5Sselect_elements and H5Scopy"></a>
+<br>
+<a href="reftoobj.html" TARGET="CONTENT"><IMG SRC="Graphics/RefObject.gif" BORDER=0 ALT="References to Objects"></a>
+<br>
+<a href="reftoreg.html" TARGET="CONTENT"><IMG SRC="Graphics/RefRegion.gif" BORDER=0 ALT="References to Dataset Regions"></a>
+<br>
+<a href="extend.html" TARGET="CONTENT"><IMG SRC="Graphics/ChunkExt.gif" BORDER=0 ALT="Chunking and Extendible Datasets"></a>
+<br>
+<a href="mount.html" TARGET="CONTENT"><IMG SRC="Graphics/MountFile.gif" BORDER=0 ALT="Mounting Files"></a>
+<br>
+<a href="iterate.html" TARGET="CONTENT"><IMG SRC="Graphics/Iterate.gif" BORDER=0 ALT="Group Iteration"></a>
+-->
+
+
+<hr>
+<a href="ContentsAdd.html" TARGET="BUTTONS"><IMG SRC="Graphics/AddInfo.gif" BORDER=0 ALT="Additional Information"></a>
+<!--
+<br>
+<a href="util.html" TARGET="CONTENT"><IMG SRC="Graphics/Utilities.gif" BORDER=0 ALT="HDF5 Utilities -- h5ls and h5dump"></a>
+<br>
+<a href="glossary.html" TARGET="CONTENT"><IMG SRC="Graphics/Glossary.gif" BORDER=0 ALT="Glossary"></a>
+<br>
+<a href="references.html" TARGET="CONTENT"><IMG SRC="Graphics/References.gif" BORDER=0 ALT="References"></a>
+<br>
+<a href="examples/" TARGET="CONTENT"><IMG SRC="Graphics/Examples.gif" BORDER=0 ALT="Example Programs"></a>
+-->
+
+
+<hr>
+<a href="ContentsFull.html" TARGET="BUTTONS"><IMG SRC="Graphics/TOCFull.gif" BORDER=0 ALT="Full TOC"></a>
+<br>
+
+
+<hr>
+<br>
+<a href="Copyright.html" TARGET="CONTENT"><IMG SRC="Graphics/Copy.gif" BORDER=0 ALT="Copyright, Etc."></a><br>
+
+
+</body>
+</html>
+
diff --git a/doc/html/Tutor/Copyright.html b/doc/html/Tutor/Copyright.html
new file mode 100644
index 0000000..b22c16c
--- /dev/null
+++ b/doc/html/Tutor/Copyright.html
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+<html>
+<html>
+ <head>
+ <title>
+ HDF5 Copyright Notice
+ </title>
+ </head>
+
+ <body bgcolor="#FFFFFF">
+
+
+
+<hr>
+
+<h3>Copyright Notice and Statement for
+<br>
+NCSA HDF5 (Hierarchical Data Format 5) Software Library and Utilities</h3>
+<hr>
+<p>
+
+
+NCSA HDF5 (Hierarchical Data Format 5) Software Library and Utilities
+<br>
+Copyright 1998, 1999 by the Board of Trustees of the University of Illinois
+<br>
+<strong>All rights reserved.</strong>
+<p>
+
+Contributors: National Center for Supercomputing Applications (NCSA) at
+the University of Illinois at Urbana-Champaign (UIUC), Lawrence Livermore
+National Laboratory (LLNL), Sandia National Laboratories (SNL), Los Alamos
+National Laboratory (LANL), Jean-loup Gailly and Mark Adler (gzip library).
+<p>
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted for any purpose (including commercial purposes)
+provided that the following conditions are met:
+<p>
+
+<ol>
+<li>Redistributions of source code must retain the above copyright notice,
+this list of conditions, and the following disclaimer.
+
+<li>Redistributions in binary form must reproduce the above copyright
+notice, this list of conditions, and the following disclaimer in the
+documentation and/or materials provided with the distribution.
+
+<li>In addition, redistributions of modified forms of the source or binary
+code must carry prominent notices stating that the original code was
+changed and the date of the change.
+
+<li>All publications or advertising materials mentioning features or use of
+this software are asked, but not required, to acknowledge that it was
+developed by the National Center for Supercomputing Applications at the
+University of Illinois at Urbana-Champaign and to credit the contributors.
+
+<li>Neither the name of the University nor the names of the Contributors may
+be used to endorse or promote products derived from this software without
+specific prior written permission from the University or the Contributors.
+
+<li>THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY AND THE CONTRIBUTORS "AS IS"
+WITH NO WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED. In no event
+shall the University or the Contributors be liable for any damages suffered
+by the users arising out of the use of this software, even if advised of
+the possibility of such damage.
+
+</ol>
+
+
+<hr>
+
+<address>
+<a href="mailto:hdfhelp@ncsa.uiuc.edu">HDF Help Desk</a>
+
+<br>
+Last modified: 13 October 1999
+
+</body>
+</html>
+
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+<HTML><HEAD>
+<TITLE>HDF5 Tutorial - Introductory Topics Questions with Answers
+</TITLE>
+</HEAD>
+
+<body bgcolor="#ffffff">
+
+<!-- BEGIN MAIN BODY -->
+
+<A HREF="http://www.ncsa.uiuc.edu/"><img border=0
+src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+width=78 height=27 alt="NCSA"><P></A>
+
+ [ <A HREF="title.html"><I>HDF5 Tutorial Top</I></A> ]
+<H1>
+<BIG><BIG><BIG><FONT COLOR="#c101cd">Introductory Topics Questions with
+Answers</FONT>
+</BIG></BIG></BIG></H1>
+
+<hr noshade size=1>
+<PRE>
+
+
+Section 2: HDF File Organization
+================================
+
+1. Name and describe the two primary objects that can be stored in an HDF5
+ file:
+
+Answer:
+Group: A grouping structure containing zero or more HDF5 objects, together
+ with supporting metadata.
+
+Dataset: A multidimensional array of data elements, together with
+ supporting metadata.
+
+2. What is an attribute?
+
+Answer: An HDF attribute is a user-defined HDF5 structure that provides extra
+ information about an HDF5 object.
+
+3. Give the path name for an object called "harry" that is a member of a
+ group called "dick," which in turn is a member of the root group.
+
+Answer: /dick/harry
+
+Section 3: The HDF5 API
+=======================
+
+Describe the purpose of each of the following HDF5 APIs:
+
+H5A, H5D, H5E, F5F, H5G, H5T, H5Z
+
+H5A: Attribute access and manipulation routines.
+H5D: Dataset access and manipulation routines.
+H5E: Error handling routines.
+F5F: File access routines.
+H5G: Routines for creating and operating on groups.
+H5T: Routines for creating and manipulating the datatypes of dataset elements.
+H5Z: Data compression routines.
+
+
+Section 4: Creating an HDF File
+===============================
+
+1. What two HDF5 routines must be called in order to create an HDF5 file?
+
+Answer: H5Fcreate and H5Fclose.
+
+2. What include file must be included in any file that uses the HDF5 library.
+
+Answer: hdf5.h must be included because it contains definitions and
+ declarations used by the library.
+
+3. An HDF5 file is never completely empty because as soon as an HDF5 file
+ is created, it automatically contains a certain primary object. What is
+ that object?
+
+Answer: The root group.
+
+
+Section 5: Creating a Dataset
+=============================
+
+1. Name and describe two major datatype categories.
+
+Answer: atomic datatype - An atomic datatype cannot be decomposed into
+ smaller units at the API level.
+ compound datatype - A compound datatype is a collection of atomic/
+ compound datatypes, or small arrays of such types.
+
+2. List the HDF5 atomic datatypes. Give an example of a predefined datatype.
+
+Answer: There are six HDF5 atomic datatypes: integer, floating point,
+ date and time, character string, bit field, opaque.
+ H5T_IEEE_F32LE - 4-byte little-endian, IEEE floating point,
+ H5T_NATIVE_INT - native integer
+
+3. What does the dataspace describe? What are the major characteristics of the
+ simple dataspace?
+
+Answer: The dataspace describes the dimensionality of the dataset. It is
+ characterized by its rank and dimension sizes.
+
+4. What information needs to be passed to the H5Dcreate function, i.e.
+ what information is needed to describe a dataset at creation time?
+
+Answer: dataset location, name, dataspace, datatype, and creation properties.
+
+
+Section 6: Reading from/Writing to a Dataset
+============================================
+
+1. What are six pieces of information which need to be specified for
+ reading and writing a dataset?
+
+Answer: A dataset, a dataset's datatype and dataspace in memory, the
+ dataspace in the file, the transfer properties and data buffer.
+
+2. Why are both the memory dataspace and file dataspace needed for
+ read/write operations, but only the memory datatype is specified for the
+ datatype?
+
+Answer: A dataset's file datatype is specified at creation time and cannot be
+ changed. Both file and memory dataspaces are needed for performing
+ subsetting and partial I/O operations.
+
+3. What does the line DATASPACE { SIMPLE (4 , 6 ) / ( 4 , 6 ) } in Fig 6.1
+ means?
+
+Answer: It means that the dataset "dset" has a simple dataspace with the
+ current dimensions (4,6) and the maximum size of the dimensions (4,6).
+
+
+Section 7: Creating an Attribute
+================================
+
+1. What is an attribute?
+
+Answer: An attribute is a dataset attached to an object. It describes the
+ nature and/or the intended usage of the object.
+
+2. Can partial I/O operations be performed on attributes?
+
+Answer: No
+
+
+Section 8: Creating a Group
+===========================
+
+What are the two primary objects that can be included in
+a group?
+
+Answer: A group and a dataset
+
+
+Section 9: Creating Groups using Absolute/Relative Names
+========================================================
+
+1. Group names can be specified in two "ways". What are these
+ two types of group names that you can specify?
+
+Answer: relative and absolute
+
+2. You have a dataset named "moo" in the group "boo", which is
+ in the group "foo", which in turn, is in the root group. How would
+ you specify an absolute name to access this dataset?
+
+Answer: /foo/boo/moo
+
+Section 10: Creating Datasets in Groups
+=======================================
+
+Describe a way to access the dataset "moo" described in the previous section
+(Section 9, question 2), using a relative and absolute pathname.
+
+Answers: 1. Access the group, "/foo", and get the group ID.
+ Access the group "boo" using the group ID obtained in Step 1.
+ Access the dataset "moo" using the group ID in Step 2.
+ gid = H5Gopen (file_id, "/foo", 0); /* absolute path */
+ gid1 = H5Gopen (gid, "boo", 0); /* relative path */
+ did = H5Dopen (gid1, "moo"); /* relative path */
+
+ 2. Access the group, "/foo", and get the group ID.
+ Access the dataset "boo/moo", with the group ID just obtained.
+ gid = H5Gopen (file_id, "/foo", 0); /* absolute path */
+ did = H5Dopen (gid, "boo/moo"); /* relative path */
+
+ 3. Access the dataset with an absolute path.
+ did = H5Dopen (file_id, "/foo/boo/moo"); /* absolute path */
+</PRE>
+<!-- BEGIN FOOTER INFO -->
+
+<P><hr noshade size=1>
+<font face="arial,helvetica" size="-1">
+ <a href="http://www.ncsa.uiuc.edu/"><img border=0
+ src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+ width=78 height=27 alt="NCSA"><br>
+ The National Center for Supercomputing Applications</A><br>
+ <a href="http://www.uiuc.edu/">University of Illinois
+ at Urbana-Champaign</a><br>
+ <br>
+<!-- <A HREF="helpdesk.mail.html"> -->
+<A HREF="mailto:hdfhelp@ncsa.uiuc.edu">
+hdfhelp@ncsa.uiuc.edu</A>
+<BR> <H6>Last Modified: August 2, 1999</H6><BR>
+<!-- modified by Barbara Jones - bljones@ncsa.uiuc.edu -->
+</FONT>
+<BR>
+<!-- <A HREF="mailto:hdfhelp@ncsa.uiuc.edu"> -->
+
+</BODY>
+</HTML>
+
+
+
diff --git a/doc/html/Tutor/api.html b/doc/html/Tutor/api.html
new file mode 100644
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--- /dev/null
+++ b/doc/html/Tutor/api.html
@@ -0,0 +1,140 @@
+<HTML><HEAD>
+<TITLE>The HDF5 API
+</TITLE>
+</HEAD>
+
+<body bgcolor="#ffffff">
+
+<!-- BEGIN MAIN BODY -->
+
+<A HREF="http://www.ncsa.uiuc.edu/"><img border=0
+src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+width=78 height=27 alt="NCSA"><P></A>
+
+ [ <A HREF="title.html"><I>HDF5 Tutorial Top</I></A> ]
+<H1>
+<BIG><BIG><BIG><FONT COLOR="#c101cd">The HDF5 API</FONT>
+</BIG></BIG></BIG></H1>
+
+
+<hr noshade size=1>
+
+<BODY>
+<P>
+The HDF5 library provides several interfaces, and is currently implemented in
+C. The APIs provide routines for accessing HDF5 files and creating and
+manipulating HDF5 objects. All C routines in the HDF5 library begin with
+a prefix of the form H5*, where * is a single letter indicating the object on
+which the operation is to be performed. The APIs are listed below:
+<P>
+<table width="65%" border="2" cellpadding="4">
+ <tr bgcolor="#FFCC99" bordercolor="#FFFFFF">
+ <td width="11%">
+ <div align="center"><b>API </b></div>
+ </td>
+ <td width="89%">
+ <div align="left"><b>DESCRIPTION</b> </div>
+ </td>
+ </tr>
+ <tr bordercolor="#FFFFFF">
+ <td width="11%" bgcolor="#99CCCC">
+ <div align="center"><b>H5</b></div>
+ </td>
+ <td width="89%">Library Functions: the general-purpose H5 functions.</td>
+ </tr>
+ <tr bordercolor="#FFFFFF">
+ <td width="11%" bgcolor="#99CCCC">
+ <div align="center"><b>H5A</b></div>
+ </td>
+ <td width="89%">Annotation Interface: attribute access and manipulating routines.</td>
+ </tr>
+ <tr bordercolor="#FFFFFF">
+ <td width="11%" bgcolor="#99CCCC">
+ <div align="center"><b>H5D</b></div>
+ </td>
+ <td width="89%">Dataset Interface: dataset access and manipulating routines.
+ </td>
+ </tr>
+ <tr bordercolor="#FFFFFF">
+ <td width="11%" bgcolor="#99CCCC">
+ <div align="center"><b>H5E</b></div>
+ </td>
+ <td width="89%">Error Interface: error handling routines.</td>
+ </tr>
+ <tr bordercolor="#FFFFFF">
+ <td width="11%" bgcolor="#99CCCC">
+ <div align="center"><b>H5F</b></div>
+ </td>
+ <td width="89%">File Interface: file access routines.</td>
+ </tr>
+ <tr bordercolor="#FFFFFF">
+ <td width="11%" bgcolor="#99CCCC">
+ <div align="center"><b>H5G</b></div>
+ </td>
+ <td width="89%">Group Interface: group creating and operating routines.</td>
+ </tr>
+ <tr bordercolor="#FFFFFF">
+ <td width="11%" bgcolor="#99CCCC">
+ <div align="center"><b>H5I</b></div>
+ </td>
+ <td width="89%">Identifier Interface: identifier routines.</td>
+ </tr>
+ <tr bordercolor="#FFFFFF">
+ <td width="11%" bgcolor="#99CCCC">
+ <div align="center"><b>H5P</b></div>
+ </td>
+ <td width="89%">Property List Interface: object property list manipulating
+ routines.</td>
+ </tr>
+ <tr bordercolor="#FFFFFF">
+ <td width="11%" bgcolor="#99CCCC">
+ <div align="center"><b>H5R</b></div>
+ </td>
+ <td width="89%">Reference Interface: reference routines.</td>
+ </tr>
+ <tr bordercolor="#FFFFFF">
+ <td width="11%" bgcolor="#99CCCC">
+ <div align="center"><b>H5S</b></div>
+ </td>
+ <td width="89%">Dataspace Interface: routines for defining dataspaces.</td>
+ </tr>
+ <tr bordercolor="#FFFFFF">
+ <td width="11%" bgcolor="#99CCCC">
+ <div align="center"><b>H5T</b></div>
+ </td>
+ <td width="89%">Data type Interface: routines for creating and manipulating
+ the data type of dataset elements.</td>
+ </tr>
+ <tr bordercolor="#FFFFFF">
+ <td width="11%" bgcolor="#99CCCC">
+ <div align="center"><b>H5Z</b></div>
+ </td>
+ <td width="89%">Compression Interface: compression routine(s).</td>
+ </tr>
+</table>
+
+<!-- BEGIN FOOTER INFO -->
+
+<P><hr noshade size=1>
+<font face="arial,helvetica" size="-1">
+ <a href="http://www.ncsa.uiuc.edu/"><img border=0
+ src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+ width=78 height=27 alt="NCSA"><br>
+ The National Center for Supercomputing Applications</A><br>
+ <a href="http://www.uiuc.edu/">University of Illinois
+ at Urbana-Champaign</a><br>
+ <br>
+<!-- <A HREF="helpdesk.mail.html"> -->
+<A HREF="mailto:hdfhelp@ncsa.uiuc.edu">
+hdfhelp@ncsa.uiuc.edu</A>
+<BR> <H6>Last Modified: July 30, 1999</H6><BR>
+<!-- modified by Barbara Jones - bljones@ncsa.uiuc.edu -->
+</FONT>
+<BR>
+<!-- <A HREF="mailto:hdfhelp@ncsa.uiuc.edu"> -->
+
+</BODY>
+</HTML>
+
+
+
diff --git a/doc/html/Tutor/bighdf2sp.JPG b/doc/html/Tutor/bighdf2sp.JPG
new file mode 100644
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diff --git a/doc/html/Tutor/compound.html b/doc/html/Tutor/compound.html
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+<HTML><HEAD>
+<TITLE>HDF5 Tutorial - Compound Data Types
+</TITLE>
+</HEAD>
+
+<body bgcolor="#ffffff">
+
+<!-- BEGIN MAIN BODY -->
+
+<A HREF="http://www.ncsa.uiuc.edu/"><img border=0
+src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+width=78 height=27 alt="NCSA"><P></A>
+
+ [ <A HREF="title.html"><I>HDF5 Tutorial Top</I></A> ]
+<H1>
+<BIG><BIG><BIG><FONT COLOR="#c101cd">Compound Data Types</FONT>
+</BIG></BIG></BIG></H1>
+
+<hr noshade size=1>
+
+<BODY>
+<H2>Contents:</H2>
+<UL>
+ <LI><A HREF="#def">Creating Compound Data Types</A>
+ <LI>Programming Example
+<UL>
+ <LI> <A HREF="#desc">Description</A>
+ <LI> <A HREF="#rem">Remarks</A>
+ <LI> <A HREF="#fc">File Contents</A>
+</UL>
+</UL>
+<HR>
+<A NAME="def">
+<H2>Creating Compound Data Types</H2>
+A compound data type is similar to a struct in C or a common block in
+Fortran. It is a collection of one or more atomic types or small arrays of
+such types. To create and use a compound data type you need to refer to
+various properties of the data compound data type:
+<UL>
+ <LI>It is of class compound.
+ <LI>It has a fixed total size, in bytes.
+ <LI>It consists of zero or more members (defined in any order) with
+ unique names and which occupy non-overlapping regions within the datum.
+ <LI>Each member has its own data type.
+ <LI>Each member is referenced by an index number between zero and N-1,
+ where N is the number of members in the compound data type.
+ <LI>Each member has a name which is unique among its siblings in a
+ compound data type.
+ <LI>Each member has a fixed byte offset, which is the first byte
+ (smallest byte address) of that member in a compound data type.
+ <LI>Each member can be a small array of up to four dimensions.
+</UL>
+Properties of members of a compound data type are defined when the
+member is added to the compound type and cannot be subsequently modified.
+<P>
+Compound data types must be built out of other data types. First, one
+creates an empty compound data type and specifies its total size. Then
+members are added to the compound data type in any order.
+
+<H2> Programming Example</H2>
+<A NAME="desc">
+<H3><U>Description</U></H3>
+
+This example shows how to create a compound data type, write an array
+to the file which uses the compound data type, and read back subsets of
+the members.<BR>
+
+[<A HREF="examples/h5_compound.c">Download h5_compound.c</A>]
+<PRE>
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+#include "hdf5.h"
+
+#define FILE "SDScompound.h5"
+#define DATASETNAME "ArrayOfStructures"
+#define LENGTH 10
+#define RANK 1
+
+int
+main(void)
+{
+
+ /* First structure and dataset*/
+ typedef struct s1_t {
+ int a;
+ float b;
+ double c;
+ } s1_t;
+ s1_t s1[LENGTH];
+ hid_t s1_tid; /* File datatype identifier */
+
+ /* Second structure (subset of s1_t) and dataset*/
+ typedef struct s2_t {
+ double c;
+ int a;
+ } s2_t;
+ s2_t s2[LENGTH];
+ hid_t s2_tid; /* Memory datatype handle */
+
+ /* Third "structure" ( will be used to read float field of s1) */
+ hid_t s3_tid; /* Memory datatype handle */
+ float s3[LENGTH];
+
+ int i;
+ hid_t file, dataset, space; /* Handles */
+ herr_t status;
+ hsize_t dim[] = {LENGTH}; /* Dataspace dimensions */
+
+
+ /*
+ * Initialize the data
+ */
+ for (i = 0; i &lt; LENGTH; i++) {
+ s1[i].a = i;
+ s1[i].b = i*i;
+ s1[i].c = 1./(i+1);
+ }
+
+ /*
+ * Create the data space.
+ */
+ space = H5Screate_simple(RANK, dim, NULL);
+
+ /*
+ * Create the file.
+ */
+ file = H5Fcreate(FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+
+ /*
+ * Create the memory data type.
+ */
+ s1_tid = H5Tcreate (H5T_COMPOUND, sizeof(s1_t));
+ H5Tinsert(s1_tid, "a_name", HOFFSET(s1_t, a), H5T_NATIVE_INT);
+ H5Tinsert(s1_tid, "c_name", HOFFSET(s1_t, c), H5T_NATIVE_DOUBLE);
+ H5Tinsert(s1_tid, "b_name", HOFFSET(s1_t, b), H5T_NATIVE_FLOAT);
+
+ /*
+ * Create the dataset.
+ */
+ dataset = H5Dcreate(file, DATASETNAME, s1_tid, space, H5P_DEFAULT);
+
+ /*
+ * Wtite data to the dataset;
+ */
+ status = H5Dwrite(dataset, s1_tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, s1);
+
+ /*
+ * Release resources
+ */
+ H5Tclose(s1_tid);
+ H5Sclose(space);
+ H5Dclose(dataset);
+ H5Fclose(file);
+
+ /*
+ * Open the file and the dataset.
+ */
+ file = H5Fopen(FILE, H5F_ACC_RDONLY, H5P_DEFAULT);
+
+ dataset = H5Dopen(file, DATASETNAME);
+
+ /*
+ * Create a data type for s2
+ */
+ s2_tid = H5Tcreate(H5T_COMPOUND, sizeof(s2_t));
+
+ H5Tinsert(s2_tid, "c_name", HOFFSET(s2_t, c), H5T_NATIVE_DOUBLE);
+ H5Tinsert(s2_tid, "a_name", HOFFSET(s2_t, a), H5T_NATIVE_INT);
+
+ /*
+ * Read two fields c and a from s1 dataset. Fields in the file
+ * are found by their names "c_name" and "a_name".
+ */
+ status = H5Dread(dataset, s2_tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, s2);
+
+ /*
+ * Display the fields
+ */
+ printf("\n");
+ printf("Field c : \n");
+ for( i = 0; i &lt; LENGTH; i++) printf("%.4f ", s2[i].c);
+ printf("\n");
+
+ printf("\n");
+ printf("Field a : \n");
+ for( i = 0; i &lt; LENGTH; i++) printf("%d ", s2[i].a);
+ printf("\n");
+
+ /*
+ * Create a data type for s3.
+ */
+ s3_tid = H5Tcreate(H5T_COMPOUND, sizeof(float));
+
+ status = H5Tinsert(s3_tid, "b_name", 0, H5T_NATIVE_FLOAT);
+
+ /*
+ * Read field b from s1 dataset. Field in the file is found by its name.
+ */
+ status = H5Dread(dataset, s3_tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, s3);
+
+ /*
+ * Display the field
+ */
+ printf("\n");
+ printf("Field b : \n");
+ for( i = 0; i &lt; LENGTH; i++) printf("%.4f ", s3[i]);
+ printf("\n");
+
+ /*
+ * Release resources
+ */
+ H5Tclose(s2_tid);
+ H5Tclose(s3_tid);
+ H5Dclose(dataset);
+ H5Fclose(file);
+
+ return 0;
+}
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+</PRE>
+The program outputs the following:
+<PRE>
+
+Field c :
+1.0000 0.5000 0.3333 0.2500 0.2000 0.1667 0.1429 0.1250 0.1111 0.1000
+
+Field a :
+0 1 2 3 4 5 6 7 8 9
+
+Field b :
+0.0000 1.0000 4.0000 9.0000 16.0000 25.0000 36.0000 49.0000 64.0000 81.0000
+
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+</PRE>
+
+<A NAME="rem">
+<H3><U>Remarks</U></H3>
+<UL>
+<LI>H5Tcreate creates a new data type of the specified class with
+the specified number of bytes.
+<PRE>
+ hid_t H5Tcreate ( H5T_class_t class, size_t size )
+</PRE>
+<UL>
+<LI>The <I>class</I> parameter specifies the data type to create.
+Currently only the H5T_COMPOUND data type class is supported with this
+function.
+<LI>The <I>size</I> parameter specifies the number of bytes in the
+data type to create.
+</UL>
+<P>
+<LI>H5Tinsert adds a member to the compound data type specified by
+<I>type_id</I>.
+<PRE>
+ herr_t H5Tinsert ( hid_t type_id, const char * name, off_t offset, hid_t field_id )
+</PRE>
+<UL>
+<LI>The <I>type_id</I> parameter is the identifier of the compound data type
+to modify.
+<LI>The <I>name</I> parameter is the name of the field to insert. The new
+member name must be unique within a compound data type.
+<LI>The <I>offset</I> parameter is the offset in the memory structure of
+the field to insert.
+
+The library defines the HOFFSET macro to compute the offset of a member within
+a struct:
+<PRE>
+ HOFFSET ( s, m )
+</PRE>
+This macro computes the offset of member <I>m</I> within a struct
+variable <I>s</I>.
+
+<LI>The <I>field_id</I> parameter is the data type identifier of the
+field to insert.
+</UL>
+<P>
+<LI>H5Tclose releases a data type.
+<PRE>
+ herr_t H5Tclose ( hid_t type_id )
+</PRE>
+The <I>type_id</I> parameter is the identifier of the data type to release.
+</UL>
+<A NAME="fc">
+<H3><U>File Contents</U></H3>
+
+<PRE>
+HDF5 "SDScompound.h5" {
+GROUP "/" {
+ DATASET "ArrayOfStructures" {
+ DATATYPE {
+ H5T_STD_I32BE "a_name";
+ H5T_IEEE_F32BE "b_name";
+ H5T_IEEE_F64BE "c_name";
+ }
+ DATASPACE { SIMPLE ( 10 ) / ( 10 ) }
+ DATA {
+ {
+ [ 0 ],
+ [ 0 ],
+ [ 1 ]
+ },
+ {
+ [ 1 ],
+ [ 1 ],
+ [ 0.5 ]
+ },
+ {
+ [ 2 ],
+ [ 4 ],
+ [ 0.333333 ]
+ },
+ {
+ [ 3 ],
+ [ 9 ],
+ [ 0.25 ]
+ },
+ {
+ [ 4 ],
+ [ 16 ],
+ [ 0.2 ]
+ },
+ {
+ [ 5 ],
+ [ 25 ],
+ [ 0.166667 ]
+ },
+ {
+ [ 6 ],
+ [ 36 ],
+ [ 0.142857 ]
+ },
+ {
+ [ 7 ],
+ [ 49 ],
+ [ 0.125 ]
+ },
+ {
+ [ 8 ],
+ [ 64 ],
+ [ 0.111111 ]
+ },
+ {
+ [ 9 ],
+ [ 81 ],
+ [ 0.1 ]
+ }
+ }
+ }
+}
+}
+</PRE>
+
+
+
+<!-- BEGIN FOOTER INFO -->
+
+<P><hr noshade size=1>
+<font face="arial,helvetica" size="-1">
+ <a href="http://www.ncsa.uiuc.edu/"><img border=0
+ src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+ width=78 height=27 alt="NCSA"><br>
+ The National Center for Supercomputing Applications</A><br>
+ <a href="http://www.uiuc.edu/">University of Illinois
+ at Urbana-Champaign</a><br>
+ <br>
+<!-- <A HREF="helpdesk.mail.html"> -->
+<A HREF="mailto:hdfhelp@ncsa.uiuc.edu">
+hdfhelp@ncsa.uiuc.edu</A>
+<BR> <H6>Last Modified: August 27, 1999</H6><BR>
+<!-- modified by Barbara Jones - bljones@ncsa.uiuc.edu -->
+</FONT>
+<BR>
+<!-- <A HREF="mailto:hdfhelp@ncsa.uiuc.edu"> -->
+
+</BODY>
+</HTML>
+
+
+
diff --git a/doc/html/Tutor/crtatt.html b/doc/html/Tutor/crtatt.html
new file mode 100644
index 0000000..82de873
--- /dev/null
+++ b/doc/html/Tutor/crtatt.html
@@ -0,0 +1,267 @@
+<HTML><HEAD>
+<TITLE>HDF5 Tutorial - Creating an Attribute
+</TITLE>
+</HEAD>
+
+<body bgcolor="#ffffff">
+
+<!-- BEGIN MAIN BODY -->
+
+<A HREF="http://www.ncsa.uiuc.edu/"><img border=0
+src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+width=78 height=27 alt="NCSA"><P></A>
+
+ [ <A HREF="title.html"><I>HDF5 Tutorial Top</I></A> ]
+<H1>
+<BIG><BIG><BIG><FONT COLOR="#c101cd">Creating an Attribute</FONT>
+</BIG></BIG></BIG></H1>
+
+<hr noshade size=1>
+
+<BODY>
+<H2>Contents:</H2>
+<UL>
+ <LI> <A HREF="#def">What is an Attribute</A>?
+ <LI> Programming Example
+ <UL>
+ <LI> <A HREF="#desc">Description</A>
+ <LI> <A HREF="#rem">Remarks</A>
+ <LI> <A HREF="#fc">File Contents</A>
+ <LI> <A HREF="#ddl">Attribute Definition in DDL</A>
+ </UL>
+</UL>
+<HR>
+<A NAME="def">
+<H2>What is an Attribute?</h2>
+<P>
+Attributes are small datasets that can be used to describe the nature and/or
+the intended usage of the object they are attached to. In this section, we
+show how to create and read/write an attribute.
+<P>
+<P>
+<H3>Creating an attribute</H3>
+<P>
+ Creating an attribute is similar to the creation of a dataset. To create an
+ attribute the application must specify the object which the attribute is
+ attached to, the data type and space of the attribute data and the creation
+ properties.
+<P>
+ The steps to create an attribute are as follows:
+<OL>
+ <LI> Obtain the object identifier that the attribute is to be attached to.
+ <LI> Define the characteristics of the attribute and specify creation
+ properties.
+ <UL>
+ <LI> Define the data type.
+ <LI> Define the dataspace.
+ <LI> Specify the creation properties.
+ </UL>
+ <LI> Create the attribute.
+ <LI> Close the attribute and data type, dataspace, and creation property
+ list if necessary.
+</OL>
+<P>
+ To create an attribute, the calling program must contain the following calls:
+<PRE>
+ attr_id = H5Acreate(loc_id, attr_name, type_id, space_id, create_plist);
+ H5Aclose(attr_id);
+</PRE>
+
+<H3>Reading/Writing an attribute</H3>
+<P>
+ Attributes may only be read/written as an entire object. No partial I/O is
+ currently supported. Therefore, to perform I/O operations on an attribute, the
+ application needs only to specify the attribute and the attribute's memory
+ data type.
+<P>
+ The steps to read/write an attribute are as follows.
+<OL>
+ <LI> Obtain the attribute identifier.
+ <LI> Specify the attribute's memory data type.
+ <LI> Perform the desired operation.
+ <LI> Close the memory data type if necessary.
+</OL>
+<P>
+To read/write an attribute, the calling program must contain the following
+ calls:
+<PRE>
+ status = H5Aread(attr_id, mem_type_id, buf);
+</PRE>
+ or
+<PRE>
+ status = H5Awrite(attr_id, mem_type_id, buf);
+</PRE>
+<P>
+<H2> Programming Example</H2>
+<A NAME="desc">
+<H3><U>Description</U></H3>
+This example shows how to create and write a dataset attribute.
+It opens an existing file 'dset.h5', obtains the id of the dataset "/dset1",
+defines the attribute's dataspace, creates the dataset attribute, writes
+the attribute, and then closes the attribute's dataspace, attribute, dataset,
+and file. <BR>
+[ <A HREF="examples/h5_crtatt.c">Download h5_crtatt.c</A> ]
+<PRE>
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+#include &lt;hdf5.h&gt;
+#define FILE "dset.h5"
+
+main() {
+
+ hid_t file_id, dataset_id, attribute_id, dataspace_id; /* identifiers
+*/
+ hsize_t dims;
+ int attr_data[2];
+ herr_t status;
+
+ /* Initialize the attribute data. */
+ attr_data[0] = 100;
+ attr_data[1] = 200;
+
+ /* Open an existing file. */
+ file_id = H5Fopen(FILE, H5F_ACC_RDWR, H5P_DEFAULT);
+
+ /* Open an existing dataset. */
+ dataset_id = H5Dopen(file_id, "/dset");
+
+ /* Create the data space for the attribute. */
+ dims = 2;
+ dataspace_id = H5Screate_simple(1, &dims, NULL);
+
+ /* Create a dataset attribute. */
+ attribute_id = H5Acreate(dataset_id, "attr", H5T_STD_I32BE, dataspace_id, H5P_DEFAULT);
+
+ /* Write the attribute data. */
+ status = H5Awrite(attribute_id, H5T_NATIVE_INT, attr_data);
+
+ /* Close the attribute. */
+ status = H5Aclose(attribute_id);
+
+ /* Close the dataspace. */
+ status = H5Sclose(dataspace_id);
+
+ /* Close to the dataset. */
+ status = H5Dclose(dataset_id);
+
+ /* Close the file. */
+ status = H5Fclose(file_id);
+}
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+</PRE>
+
+<A NAME="rem">
+<H3><U>Remarks</U></H3>
+<UL>
+<LI> H5Acreate creates an attribute which is attached to the object specified by
+ the first parameter, and returns an identifier.
+<PRE>
+ hid_t H5Acreate (hid_t loc_id, const char *name, hid_t type_id,
+ hid_t space_id, hid_t create_plist)
+</PRE>
+<UL>
+ <LI> The first parameter is the identifier of the object which the attribute is
+ attached to.
+
+ <LI> The second parameter is the name of the attribute to create.
+
+ <LI> The third parameter is the identifier of the attribute's datatype.
+
+ <LI> The fourth parameter is the identifier of the attribute's dataspace.
+
+ <LI> The last parameter is the identifier of the creation property list.
+ H5P_DEFAULT specifies the default creation property list.
+</UL>
+<P>
+<LI> H5Awrite writes the entire attribute, and returns the status of the write.
+<PRE>
+ herr_t H5Awrite (hid_t attr_id, hid_t mem_type_id, void *buf)
+</PRE>
+<UL>
+ <LI> The first parameter is the identifier of the attribute to write.
+
+ <LI> The second parameter is the identifier of the attribute's memory datatype.
+
+ <LI> The last parameter is the data buffer.
+</UL>
+<P>
+<LI> When an attribute is no longer accessed by a program, H5Aclose must be called
+ to release the attribute from use. This call is mandatory.
+<PRE>
+ herr_t H5Aclose (hid_t attr_id)
+</PRE>
+</UL>
+
+
+
+<A NAME="fc">
+<H3><U>File Contents</U></H3>
+<P>
+The contents of 'dset.h5' and the attribute definition are given in the
+following:
+<P>
+<B>Fig. 7.1</B> &nbsp; <I>'dset.h5' in DDL</I>
+
+<PRE>
+
+ HDF5 "dset.h5" {
+ GROUP "/" {
+ DATASET "dset" {
+ DATATYPE { H5T_STD_I32BE }
+ DATASPACE { SIMPLE ( 4, 6 ) / ( 4, 6 ) }
+ DATA {
+ 1, 2, 3, 4, 5, 6,
+ 7, 8, 9, 10, 11, 12,
+ 13, 14, 15, 16, 17, 18,
+ 19, 20, 21, 22, 23, 24
+ }
+ ATTRIBUTE "attr" {
+ DATATYPE { H5T_STD_I32BE }
+ DATASPACE { SIMPLE ( 2 ) / ( 2 ) }
+ DATA {
+ 100, 200
+ }
+ }
+ }
+ }
+ }
+</PRE>
+
+
+<A NAME="ddl">
+<h3><U>Attribute Definition in DDL</U></H3>
+<B>Fig. 7.2</B> &nbsp; <I>HDF5 Attribute Definition</I>
+<PRE>
+
+ &lt;attribute&gt ::= ATTRIBUTE "&lt;attr_name&gt;" { &lt;datatype&gt
+ &lt;dataspace&gt
+ &lt;data&gt }
+
+</PRE>
+
+
+<!-- BEGIN FOOTER INFO -->
+
+<P><hr noshade size=1>
+<font face="arial,helvetica" size="-1">
+ <a href="http://www.ncsa.uiuc.edu/"><img border=0
+ src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+ width=78 height=27 alt="NCSA"><br>
+ The National Center for Supercomputing Applications</A><br>
+ <a href="http://www.uiuc.edu/">University of Illinois
+ at Urbana-Champaign</a><br>
+ <br>
+<!-- <A HREF="helpdesk.mail.html"> -->
+<A HREF="mailto:hdfhelp@ncsa.uiuc.edu">
+hdfhelp@ncsa.uiuc.edu</A>
+<BR> <H6>Last Modified: August 27, 1999</H6><BR>
+<!-- modified by Barbara Jones - bljones@ncsa.uiuc.edu -->
+</FONT>
+<BR>
+<!-- <A HREF="mailto:hdfhelp@ncsa.uiuc.edu"> -->
+
+</BODY>
+</HTML>
+
+
+
diff --git a/doc/html/Tutor/crtdat.html b/doc/html/Tutor/crtdat.html
new file mode 100644
index 0000000..cb07ccd
--- /dev/null
+++ b/doc/html/Tutor/crtdat.html
@@ -0,0 +1,340 @@
+<HTML><HEAD>
+<TITLE>HDF5 Tutorial - Creating a Dataset
+</TITLE>
+</HEAD>
+
+<body bgcolor="#ffffff">
+
+<!-- BEGIN MAIN BODY -->
+
+<A HREF="http://www.ncsa.uiuc.edu/"><img border=0
+src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+width=78 height=27 alt="NCSA"><P></A>
+
+ [ <A HREF="title.html"><I>HDF5 Tutorial Top</I></A> ]
+<H1>
+<BIG><BIG><BIG><FONT COLOR="#c101cd">Creating a Dataset</FONT>
+</BIG></BIG></BIG></H1>
+
+<hr noshade size=1>
+
+<BODY>
+<H2>Contents:</H2>
+<UL>
+ <LI> <A HREF="#def">What is a Dataset</A>?
+ <LI> Programming Example
+ <UL>
+ <LI> <A HREF="#desc">Description</A>
+ <LI> <A HREF="#rem">Remarks</A>
+ <LI> <A HREF="#fc">File Contents</A>
+ <LI> <A HREF="#ddl">Dataset Definition in DDL</A>
+ </UL>
+</UL>
+<HR>
+<A NAME="def">
+<H2>What is a Dataset?</h2>
+<P>
+A dataset is a multidimensional array of data elements, together with
+supporting metadata. To create a dataset, the application program must specify
+the location to create the dataset, the dataset name, the data type and space
+of the data array, and the dataset creation properties.
+<P>
+ <H3> Data Types</H3>
+ A data type is a collection of data type properties, all of which can
+ be stored on disk, and which when taken as a whole, provide complete
+ information for data conversion to or from that data type.
+<P>
+ There are two categories of data types in HDF5: atomic and compound data
+ types. An atomic type is a type which cannot be decomposed into smaller
+ units at the API level. A compound data type is a collection of one or more
+ atomic types or small arrays of such types.
+<P>
+ Atomic types include integer, float, date and time, string, bit field, and
+ opaque. Figure 5.1 shows the HDF5 data types. Some of the HDF5 predefined
+ atomic data types are listed in Figure 5.2. In this tutorial, we consider
+ only
+ HDF5 predefined integers. For information on data types, see the HDF5
+ User's Guide.
+<P>
+ <B>Fig 5.1</B> &nbsp; <I>HDF5 data types</I>
+<PRE>
+
+ +-- integer
+ +-- floating point
+ +---- atomic ----+-- date and time
+ | +-- character string
+ HDF5 datatypes --| +-- bit field
+ | +-- opaque
+ |
+ +---- compound
+
+</PRE>
+ <B>Fig. 5.2</B> &nbsp; <I>Examples of HDF5 predefined data types</I>
+<table width="52%" border="1" cellpadding="4">
+ <tr bgcolor="#ffcc99" bordercolor="#FFFFFF">
+ <td width="20%"><b>Data Type</b></td>
+ <td width="80%"><b>Description</b></td>
+ </tr>
+ <tr bordercolor="#FFFFFF">
+ <td bgcolor="#99cccc" width="20%">H5T_STD_I32LE</td>
+ <td width="80%">Four-byte, little-endian, signed two's complement integer</td>
+ </tr>
+ <tr bordercolor="#FFFFFF">
+ <td bgcolor="#99cccc" width="20%">H5T_STD_U16BE</td>
+ <td width="80%">Two-byte, big-endian, unsigned integer</td>
+ </tr>
+ <tr bordercolor="#FFFFFF">
+ <td bgcolor="#99cccc" width="20%">H5T_IEEE_F32BE</td>
+ <td width="80%">Four-byte, big-endian, IEEE floating point</td>
+ </tr>
+ <tr bordercolor="#FFFFFF">
+ <td bgcolor="#99cccc" width="20%">H5T_IEEE_F64LE</td>
+ <td width="80%">Eight-byte, little-endian, IEEE floating point</td>
+ </tr>
+ <tr bordercolor="#FFFFFF">
+ <td bgcolor="#99cccc" width="20%">H5T_C_S1</td>
+ <td width="80%">One-byte, null-terminated string of eight-bit characters</td>
+ </tr>
+</table>
+
+ <H3>Dataspaces</H3>
+
+ A dataspace describes the dimensionality of the data array. A dataspace
+ is either a regular N-dimensional array of data points, called a simple
+ dataspace, or a more general collection of data points organized in
+ another manner, called a complex dataspace. Figure 5.3 shows HDF5 dataspaces.
+ In this tutorial, we only consider simple dataspaces.
+<P>
+ <B>Fig 5.3</B> &nbsp; <I>HDF5 dataspaces</I>
+<PRE>
+
+ +-- simple
+ HDF5 dataspaces --|
+ +-- complex
+
+</PRE>
+ The dimensions of a dataset can be fixed (unchanging), or they may be
+ unlimited, which means that they are extendible. A dataspace can also
+ describe portions of a dataset, making it possible to do partial I/O
+ operations on selections.
+
+ <h3>Dataset creation properties</H3>
+
+ When creating a dataset, HDF5 allows users to specify how raw data is
+ organized on disk and how the raw data is compressed. This information is
+ stored in a dataset creation property list and passed to the dataset
+ interface. The raw data on disk can be stored contiguously (in the same
+ linear way that it is organized in memory), partitioned into chunks and
+ stored externally, etc. In this tutorial, we use the default creation
+ property list; that is, no compression and
+ contiguous storage layout is used. For more information about the creation
+ properties, see the HDF5 User's Guide.
+
+<P>
+In HDF5, data types and spaces are independent objects, which are created
+separately from any dataset that they might be attached to. Because of this the
+creation of a dataset requires definitions of data type and dataspace.
+In this tutorial, we use HDF5 predefined data types (integer) and consider
+only simple dataspaces. Hence, only the creation of dataspace objects is
+needed.
+<P>
+
+To create an empty dataset (no data written) the following steps need to be
+taken:
+<OL>
+<LI> Obtain the location id where the dataset is to be created.
+<LI> Define the dataset characteristics and creation properties.
+ <UL>
+ <LI> define a data type
+ <LI> define a dataspace
+ <LI> specify dataset creation properties
+</UL>
+<LI> Create the dataset.
+<LI> Close the data type, dataspace, and the property list if necessary.
+<LI> Close the dataset.
+</OL>
+To create a simple dataspace, the calling program must contain the following
+calls:
+<PRE>
+ dataspace_id = H5Screate_simple(rank, dims, maxdims);
+ H5Sclose(dataspace_id );
+</PRE>
+
+To create a dataset, the calling program must contain the following calls:
+<PRE>
+ dataset_id = H5Dcreate(hid_t loc_id, const char *name, hid_t type_id,
+ hid_t space_id, hid_t create_plist_id);
+ H5Dclose (dataset_id);
+</PRE>
+
+
+<P>
+<H2> Programming Example</H2>
+<A NAME="desc">
+<H3><U>Description</U></H3>
+The following example shows how to create an empty dataset.
+It creates a file called 'dset.h5', defines the dataset dataspace, creates a
+dataset which is a 4x6 integer array, and then closes the dataspace,
+the dataset, and the file. <BR>
+[ <A HREF="examples/h5_crtdat.c">Download h5_crtdat.c</A> ]
+<PRE>
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+#include &lt;hdf5.h&gt;
+#define FILE "dset.h5"
+
+main() {
+
+ hid_t file_id, dataset_id, dataspace_id; /* identifiers */
+ hsize_t dims[2];
+ herr_t status;
+
+ /* Create a new file using default properties. */
+ file_id = H5Fcreate(FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+
+ /* Create the data
+ space for the dataset. */
+ dims[0] = 4;
+ dims[1] = 6;
+ dataspace_id = H5Screate_simple(2, dims, NULL);
+
+ /* Create the dataset. */
+ dataset_id = H5Dcreate(file_id, "/dset", H5T_STD_I32BE, dataspace_id,
+ H5P_DEFAULT);
+
+ /* End access to the dataset and release resources used by it. */
+ status = H5Dclose(dataset_id);
+
+ /* Terminate access to the data space. */
+ status = H5Sclose(dataspace_id);
+
+ /* Close the file. */
+ status = H5Fclose(file_id);
+}
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+</PRE>
+
+<A NAME="rem">
+<H3><U>Remarks</U></H3>
+<UL>
+<LI> H5Screate_simple creates a new simple data space and returns a data space
+ identifier.
+<PRE>
+ hid_t H5Screate_simple (int rank, const hsize_t * dims,
+ const hsize_t * maxdims)
+</PRE>
+<UL>
+ <LI> The first parameter specifies the rank of the dataset.
+
+ <LI> The second parameter specifies the size of the dataset.
+
+ <LI> The third parameter is for the upper limit on the size of the dataset.
+ If it is NULL, the upper limit is the same as the dimension
+ sizes specified by the second parameter.
+</UL>
+<P>
+<LI> H5Dcreate creates a dataset at the specified location and returns a
+ dataset identifier.
+<PRE>
+ hid_t H5Dcreate (hid_t loc_id, const char *name, hid_t type_id,
+ hid_t space_id, hid_t create_plist_id)
+</PRE>
+<UL>
+ <LI> The first parameter is the location identifier.
+
+ <LI> The second parameter is the name of the dataset to create.
+
+ <LI> The third parameter is the data type identifier. H5T_STD_I32BE, a
+ 32-bit Big Endian integer, is an HDF atomic data type.
+
+ <LI> The fourth parameter is the data space identifier.
+
+ <LI> The last parameter specifies the dataset creation property list.
+ H5P_DEFAULT specifies the default dataset creation property list.
+</UL>
+<P>
+<LI>H5Dcreate creates an empty array and initializes the data to 0.
+<P>
+<LI> When a dataset is no longer accessed by a program, H5Dclose must be
+called to release the resource used by the dataset. This call is mandatory.
+<PRE>
+ hid_t H5Dclose (hid_t dataset_id)
+</PRE>
+</UL>
+
+<A NAME="fc">
+<H3><U>File Contents</U></H3>
+The file contents of 'dset.h5' are shown is <B>Figure 5.4</B> and <B>Figure 5.5</B>.
+<table width="73%" border="1" cellspacing="4" bordercolor="#FFFFFF">
+ <tr bordercolor="#FFFFFF">
+ <td width="37%"><b>Figure 5.4</b> &nbsp; <i>The Contents of 'dset.h5'</i>
+ </td>
+ <td width="63%"><b>Figure 5.5</b> &nbsp; <i>'dset.h5' in DDL</i> </td>
+ </tr>
+ <tr bordercolor="#000000">
+<!-- <td width="37%"><IMG src="dseth5.jpg" width="206" height="333"></td> -->
+ <td width="37%"><IMG src="img002.gif"></td>
+ <td width="63%">
+ <pre> HDF5 "dset.h5" {
+ GROUP "/" {
+ DATASET "dset" {
+ DATATYPE { H5T_STD_I32BE }
+ DATASPACE { SIMPLE ( 4, 6 ) / ( 4, 6 ) }
+ DATA {
+ 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0
+ }
+ }
+ }
+ }
+</pre>
+ </td>
+ </tr>
+</table>
+
+
+
+<A NAME="ddl">
+<h3><U>Dataset Definition in DDL</U></H3>
+The following is the simplified DDL dataset definition:
+<P>
+ <B>Fig. 5.6</B> &nbsp; <I>HDF5 Dataset Definition</I>
+<PRE>
+ &lt;dataset&gt ::= DATASET "&lt;dataset_name&gt;" { &lt;data type&gt
+ &lt;dataspace&gt
+ &lt;data&gt
+ &lt;dataset_attribute&gt;* }
+
+ &lt;data type&gt ::= DATATYPE { &lt;atomic_type&gt }
+
+ &lt;dataspace&gt ::= DATASPACE { SIMPLE &lt;current_dims&gt / &lt;max_dims&gt }
+
+ &lt;dataset_attribute&gt ::= &lt;attribute&gt
+</PRE>
+
+
+<!-- BEGIN FOOTER INFO -->
+
+<P><hr noshade size=1>
+<font face="arial,helvetica" size="-1">
+ <a href="http://www.ncsa.uiuc.edu/"><img border=0
+ src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+ width=78 height=27 alt="NCSA"><br>
+ The National Center for Supercomputing Applications</A><br>
+ <a href="http://www.uiuc.edu/">University of Illinois
+ at Urbana-Champaign</a><br>
+ <br>
+<!-- <A HREF="helpdesk.mail.html"> -->
+<A HREF="mailto:hdfhelp@@ncsa.uiuc.edu">
+hdfhelp@@ncsa.uiuc.edu</A>
+<BR> <H6>Last Modified: August 27, 1999</H6><BR>
+<!-- modified by Barbara Jones - bljones@@ncsa.uiuc.edu -->
+</FONT>
+<BR>
+<!-- <A HREF="mailto:hdfhelp@@ncsa.uiuc.edu"> -->
+
+</BODY>
+</HTML>
+
diff --git a/doc/html/Tutor/crtfile.html b/doc/html/Tutor/crtfile.html
new file mode 100644
index 0000000..8786aab
--- /dev/null
+++ b/doc/html/Tutor/crtfile.html
@@ -0,0 +1,224 @@
+<HTML><HEAD>
+<TITLE>HDF5 Tutorial - Creating an HDF5 File
+</TITLE>
+</HEAD>
+
+<body bgcolor="#ffffff">
+
+<!-- BEGIN MAIN BODY -->
+
+<A HREF="http://www.ncsa.uiuc.edu/"><img border=0
+src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+width=78 height=27 alt="NCSA"><P></A>
+
+ [ <A HREF="title.html"><I>HDF5 Tutorial Top</I></A> ]
+<H1>
+<BIG><BIG><BIG><FONT COLOR="#c101cd">Creating an HDF5 file</FONT>
+</BIG></BIG></BIG></H1>
+
+<hr noshade size=1>
+
+<BODY>
+<H2>Contents:</H2>
+<UL>
+ <LI> <A HREF="#def">What is an HDF5 file</A>?
+ <LI>Programming Example
+ <UL>
+ <LI> <A HREF="#desc">Description</A>
+ <LI> <A HREF="#rem">Remarks</A>
+ <LI> <A HREF="#fc">File Contents</A>
+ <LI> <A HREF="#ddl">File Definition in DDL</A>
+ </UL>
+</UL>
+<HR>
+<A NAME="def">
+<H2>What is an HDF5 file?</h2>
+<P>
+An HDF5 file is a binary file which contains scientific data and supporting
+metadata. The two primary objects stored in an HDF5 file are groups and
+datasets. Groups and datasets will be discussed in the other sessions.
+<P>
+To create a file, the program application must specify a file name, file
+access mode, file creation property list, and file access property list.
+<P>
+<UL>
+ <LI><B> File Creation Property List:</B><BR>
+ The file creation property list is used to control the file metadata.
+ File metadata contains information about the size of the user-block, the
+ size of various file data structures used by the HDF5 library, etc.
+<P>
+ The user-block is a fixed length block of data located at the beginning
+ of the file which is ignored by the HDF5 library and may be used to store
+ any data information found to be useful to applications.
+<P>
+ For more details, see the HDF5 documentation. In this tutorial,
+ the default file metadata is used.
+<P>
+ <LI><B> File Access Property List:</B><BR>
+ The file access property list is used to control different methods of
+ performing I/O on files. See the HDF5 User's Guide for details. The default
+ file access property is used in this tutorial.
+</UL>
+<P>
+The steps to create and close an HDF5 file are as follows:
+<OL>
+ <LI> Specify the file creation and access property lists if necessary.
+ <LI> Create a file.
+ <LI> Close the file and close the property lists if necessary.
+</OL>
+To create an HDF5 file, the calling program must contain the following calls:
+
+<PRE>
+ file_id = H5Fcreate(filename, access_mode, create_id, access_id);
+
+ H5Fclose(file_id);
+</PRE>
+<P>
+<H2>Programming Example</H2>
+<A NAME="desc">
+<H3><U>Description</U></H3>
+The following example demonstrates how to create and close an HDF5 file.
+It creates a file called 'file.h5', and then closes the file.<BR>
+[ <A HREF="examples/h5_crtfile.c">Download h5_crtfile.c</A> ]
+<PRE>
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+
+#include &lt;hdf5.h&gt;
+#define FILE "file.h5"
+
+main() {
+
+ hid_t file_id; /* file identifier */
+ herr_t status;
+
+ /* Create a new file using default properties. */
+ file_id = H5Fcreate(FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+
+ /* Terminate access to the file. */
+ status = H5Fclose(file_id);
+}
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+</PRE>
+<A NAME="rem">
+<H3><U>Remarks</U></H3>
+<UL>
+<LI>The include file 'hdf5.h' contains definitions and declarations, and it must
+ be included in any file that uses the HDF5 library.
+<P>
+<LI>H5Fcreate creates an HDF5 file and returns the file identifier.
+<PRE>
+ hid_t H5Fcreate (const char *name, unsigned flags, hid_t create_id,
+ hid_t access_id)
+</PRE>
+<UL>
+ <LI> The first parameter specifies the name of the file to be created.
+<P>
+ <LI> The second parameter specifies the file access mode. H5F_ACC_TRUNC will
+ truncate a file if it already exists.
+<P>
+ <LI> The third parameter specifies the file creation property list.
+ H5P_DEFAULT indicates that the default file creation property list is
+ used.
+
+<P>
+ <LI> The last parameter of H5Fcreate specifies the file access property list.
+ H5P_DEFAULT indicates that the default file access property list is used.
+
+</UL>
+<P>
+<LI> When a file is no longer accessed by a program, H5Fclose must be called to
+ release the resource used by the file. This call is mandatory.
+<PRE>
+ herr_t H5Fclose (hid_t file_id)
+</PRE>
+<P>
+<LI>The root group is automatically created when a file is created.
+ Every file has a root group and the path name of the root group is '/'.
+</UL>
+<A NAME="fc">
+<H3><U>File Contents</U></H3>
+HDF has developed tools to examine the contents of HDF5 files. The tool used
+in this tutorial is the HDF5 dumper, h5dump. h5dump is a tool that displays
+the file contents in human readable form to an ASCII file in DDL. DDL (Data
+Description Language) is a language that describes HDF5 objects in Backus-Naur
+Form. To view the file contents, type:
+<PRE>
+ <B>h5dump &lt;filename&gt</B>
+</PRE>
+Figure 4.1 describes the file contents of 'file.h5' using a directed graph.
+Each HDF5 object is represented by a rectangle and the arrows indicate
+the structure of the contents. In Fig. 4.2, 'file.h5' contains
+a group object named '/' (the root group).
+
+<P>
+<B>Fig. 4.1</B> &nbsp; <I>Contents of 'file.h5'</I>
+<PRE>
+<!--
+<IMG src="fileh5.jpg" width="205" height="208"></PRE> -->
+<IMG src="img001.gif"></PRE>
+Figure 4.2 is the text-description of 'file.h5' generated by h5dump. The HDF5
+file called 'file.h5' contains a group called '/'.
+<P>
+<B> Fig. 4.2</B> &nbsp; <I>'file.h5' in DDL</I>
+<PRE>
+
+ HDF5 "file.h5" {
+ GROUP "/" {
+ }
+ }
+
+</PRE>
+<A NAME="ddl">
+<h3><U>File Definition in DDL</U></H3>
+Figure 4.3 is the simplified DDL file definition for creating an HDF5 file.
+For simplicity, a simplified DDL is used in this tutorial. A complete and
+more rigorous DDL can be found in the HDF5 User's Guide. See the
+<A HREF="references.html">References</A> section of this tutorial.
+<P>
+<B> Fig. 4.3</B> &nbsp; <I>HDF5 File Definition</I>
+<P>
+ The explanation of the symbols used in the DDL:
+<PRE>
+
+ ::= defined as
+ &lt;tname&gt a token with the name <I>tname</I>
+ &lt;a&gt | &lt;b&gt one of &lt;a&gt or &lt;b&gt
+ &lt;a&gt;* zero or more occurrences of &lt;a&gt
+</PRE>
+ The simplified DDL file definition:
+<PRE>
+ &lt;file&gt ::= HDF5 "&lt;file_name&gt;" { &lt;root_group&gt }
+
+ &lt;root_group&gt ::= GROUP "/" { &lt;group_attribute&gt* &lt;group_member&gt;* }
+
+ &lt;group_attribute&gt ::= &lt;attribute&gt
+
+ &lt;group_member&gt ::= &lt;group&gt | &lt;dataset&gt
+</PRE>
+<!-- BEGIN FOOTER INFO -->
+
+<P><hr noshade size=1>
+<font face="arial,helvetica" size="-1">
+ <a href="http://www.ncsa.uiuc.edu/"><img border=0
+ src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+ width=78 height=27 alt="NCSA"><br>
+ The National Center for Supercomputing Applications</A><br>
+ <a href="http://www.uiuc.edu/">University of Illinois
+ at Urbana-Champaign</a><br>
+ <br>
+<!-- <A HREF="helpdesk.mail.html"> -->
+<A HREF="mailto:hdfhelp@ncsa.uiuc.edu">
+hdfhelp@ncsa.uiuc.edu</A>
+<BR> <H6>Last Modified: August 27, 1999</H6><BR>
+<!-- modified by Barbara Jones - bljones@ncsa.uiuc.edu -->
+</FONT>
+<BR>
+<!-- <A HREF="mailto:hdfhelp@ncsa.uiuc.edu"> -->
+
+</BODY>
+</HTML>
+
+
+
diff --git a/doc/html/Tutor/crtgrp.html b/doc/html/Tutor/crtgrp.html
new file mode 100644
index 0000000..566fd2c
--- /dev/null
+++ b/doc/html/Tutor/crtgrp.html
@@ -0,0 +1,167 @@
+<HTML><HEAD>
+<TITLE>HDF5 Tutorial - Creating a Group
+</TITLE>
+</HEAD>
+
+<body bgcolor="#ffffff">
+
+<!-- BEGIN MAIN BODY -->
+
+<A HREF="http://www.ncsa.uiuc.edu/"><img border=0
+src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+width=78 height=27 alt="NCSA"><P></A>
+
+
+ [ <A HREF="title.html"><I>HDF5 Tutorial Top</I></A> ]
+<H1>
+<BIG><BIG><BIG><FONT COLOR="#c101cd">Creating a Group</FONT>
+</BIG></BIG></BIG></H1>
+
+<hr noshade size=1>
+
+<BODY>
+<H2>Contents:</H2>
+<UL>
+ <LI> <A HREF="#def">What is a Group</A>?
+ <LI> Programming Example
+ <UL>
+ <LI> <A HREF="#desc">Description</A>
+ <LI> <A HREF="#rem">Remarks</A>
+ <LI> <A HREF="#fc">File Contents</A>
+ </UL>
+</UL>
+<HR>
+<A NAME="def">
+<H2>What is a Group?</h2>
+<P>
+An HDF5 group is a structure containing zero or more HDF5 objects. The two
+primary HDF5 objects are groups and datasets. To create a group, the calling
+program must:
+<OL>
+ <LI> Obtain the location identifier where the group is to be created.
+ <LI> Create the group.
+ <LI> Close the group.
+</OL>
+To create a group, the calling program must contain the following calls:
+<PRE>
+ group_id = H5Gcreate (loc_id, name, size_hint);
+ H5Gclose (group_id);
+</PRE>
+
+
+
+
+<P>
+<H2> Programming Example</H2>
+<A NAME="desc">
+<H3><U>Description</U></H3>
+The following example shows how to create and close a group. It creates a file
+called 'group.h5', creates a group called <I>MyGroup</I> in the root group,
+and then closes the group and file. <BR>
+[ <A HREF="examples/h5_crtgrp.c">Download h5_crtgrp.c</A> ]
+<PRE>
+
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+#include &lt;hdf5.h&gt;
+#define FILE "group.h5"
+
+main() {
+
+ hid_t file_id, group_id; /* identifiers */
+ herr_t status;
+
+ /* Create a new file using default properties. */
+ file_id = H5Fcreate(FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+
+ /* Create a group named "/MyGroup" in the file. */
+ group_id = H5Gcreate(file_id, "/MyGroup", 0);
+
+ /* Close the group. */
+ status = H5Gclose(group_id);
+
+ /* Terminate access to the file. */
+ status = H5Fclose(file_id);
+}
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+</PRE>
+<A NAME="rem">
+<H3><U>Remarks</U></H3>
+<UL>
+<LI> H5Gcreate creates a new empty group and returns a group identifier.
+<PRE>
+ hid_t H5Gcreate (hid_t loc_id, const char *name, size_t size_hint)
+</PRE>
+<UL>
+ <LI> The first parameter specifies the location to create the group.
+
+ <LI> The second parameter specifies the name of the group to be created.
+
+ <LI> The third parameter specifies how much file space to reserve to store the
+ names that will appear in the group. If a non-positive value is supplied,
+ then a default size is used. Passing a value of zero is usually adequate
+ since the library is able to dynamically resize the name heap.
+</UL>
+<P>
+<LI> H5Gcreate creates a group named <I>MyGroup</I> in the root group of the specified
+ file.
+<P>
+<LI> H5Gclose closes the group. This call is mandatory.
+<PRE>
+ herr_t H5Gclose (hid_t group_id)
+</PRE>
+</UL>
+
+<A NAME="fc">
+<H3><U>File Contents</U></H3>
+The contents of 'group.h5' and the definition of the group are given in the
+following:
+<P>
+<table width="56%" border="1" bordercolor="#FFFFFF" cellpadding="6" cellspacing="6">
+ <tr>
+ <td width="47%"><b>Fig. 8.1</b> &nbsp; <i>The Contents of 'group.h5'.</i>
+ </td>
+ <td width="53%"><b>Fig. 8.2</b> &nbsp; <i>'group.h5' in DDL</i> </td>
+ </tr>
+ <tr bordercolor="#000000">
+<!-- <td width="47%"><IMG src="grouph5.jpg" width="205" height="333"></td> -->
+ <td width="47%"><IMG src="img003.gif"></td>
+ <td width="53%" valign="top">
+ <pre>
+HDF5 "group.h5" {
+GROUP "/" {
+ GROUP "MyGroup" {
+ }
+}
+}
+</pre>
+ </td>
+ </tr>
+</table>
+
+
+<!-- BEGIN FOOTER INFO -->
+
+<P><hr noshade size=1>
+<font face="arial,helvetica" size="-1">
+ <a href="http://www.ncsa.uiuc.edu/"><img border=0
+ src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+ width=78 height=27 alt="NCSA"><br>
+ The National Center for Supercomputing Applications</A><br>
+ <a href="http://www.uiuc.edu/">University of Illinois
+ at Urbana-Champaign</a><br>
+ <br>
+<!-- <A HREF="helpdesk.mail.html"> -->
+<A HREF="mailto:hdfhelp@ncsa.uiuc.edu">
+hdfhelp@ncsa.uiuc.edu</A>
+<BR> <H6>Last Modified: August 27, 1999</H6><BR>
+<!-- modified by Barbara Jones - bljones@ncsa.uiuc.edu -->
+</FONT>
+<BR>
+<!-- <A HREF="mailto:hdfhelp@ncsa.uiuc.edu"> -->
+
+</BODY>
+</HTML>
+
+
+
diff --git a/doc/html/Tutor/crtgrpar.html b/doc/html/Tutor/crtgrpar.html
new file mode 100644
index 0000000..d5fbc66
--- /dev/null
+++ b/doc/html/Tutor/crtgrpar.html
@@ -0,0 +1,246 @@
+<HTML><HEAD>
+<TITLE>HDF5 Tutorial - Creating Groups using Absolute/Relative Names
+</TITLE>
+</HEAD>
+
+<body bgcolor="#ffffff">
+
+<!-- BEGIN MAIN BODY -->
+
+<A HREF="http://www.ncsa.uiuc.edu/"><img border=0
+src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+width=78 height=27 alt="NCSA"><P></A>
+
+ [ <A HREF="title.html"><I>HDF5 Tutorial Top</I></A> ]
+<H1>
+<BIG><BIG><BIG><FONT COLOR="#c101cd">Creating Groups using
+Absolute/Relative Names</FONT>
+</BIG></BIG></BIG></H1>
+
+<hr noshade size=1>
+
+<BODY>
+<H2>Contents:</H2>
+<UL>
+ <LI> <A HREF="#def">Absolute vs. Relative Names</A>
+ <LI> Programming Example
+ <UL>
+ <LI> <A HREF="#desc">Description</A>
+ <LI> <A HREF="#rem">Remarks</A>
+ <LI> <A HREF="#fc">File Contents</A>
+ </UL>
+</UL>
+<HR>
+<A NAME="def">
+<H2>Absolute vs. Relative Names</h2>
+<P>
+Recall that to create an HDF5 object, we have to specify the location where the
+object is to be created. This location is determined by the identifier of an HDF5
+object and the name of the object to be created. The name of the created
+object can be either an absolute name or a name relative to the specified
+identifier.
+In Example 5, we used the file identifier and the absolute name "/MyGroup" to create a
+group. The file identifier and the name "/" specifies the location where the group
+"MyGroup" was created.
+<P>
+In this section, we discuss HDF5 names and show how to use absolute/relative
+names by giving an example of creating groups in a file.
+
+<H3>Names</H3>
+
+HDF5 object names are a slash-separated list of components. There are few
+restrictions on names: component names may be any length except zero and may
+contain any character except slash ("/") and the null terminator. A full name
+may be composed of any number of component names separated by slashes, with any
+of the component names being the special name ".". A name which begins with a
+slash is an absolute name which is accessed beginning with the root group of the
+file while all other relative names are accessed beginning with the specified
+group. Multiple consecutive slashes in a full name are treated as single slashes
+and trailing slashes are not significant. A special case is the name "/" (or
+equivalent) which refers to the root group.
+<P>
+Functions which operate on names generally take a location identifier which
+is either a file ID or a group ID and perform the lookup with respect to that
+location. Some possibilities are:
+
+<table width="67%" border="1" bordercolor="#000000" cellpadding="4">
+ <tr bgcolor="#ffcc99" bordercolor="#FFFFFF">
+ <td><b> Location Type </b></td>
+ <td><b>Object Name</b></td>
+ <td><b>Description</b></td>
+ </tr>
+ <tr bordercolor="#FFFFFF">
+ <td bgcolor="#99cccc" height="22">File ID</td>
+ <td height="22" bgcolor="#CCCCCC">
+ <div align="center">/foo/bar</div>
+ </td>
+ <td height="22">The object bar in group foo in the root group. </td>
+ </tr>
+ <tr bordercolor="#FFFFFF">
+ <td bgcolor="#99cccc">Group ID </td>
+ <td bgcolor="#CCCCCC">
+ <div align="center">/foo/bar</div>
+ </td>
+ <td>The object bar in group foo in the root group of the file containing the
+ specified group. In other words, the group ID's only purpose is to supply
+ a file. </td>
+ </tr>
+ <tr bordercolor="#FFFFFF">
+ <td bgcolor="#99cccc">File ID</td>
+ <td bgcolor="#CCCCCC">
+ <div align="center">/</div>
+ </td>
+ <td>The root group of the specified file.</td>
+ </tr>
+ <tr bordercolor="#FFFFFF">
+ <td bgcolor="#99cccc">Group ID</td>
+ <td bgcolor="#CCCCCC">
+ <div align="center">/</div>
+ </td>
+ <td>The root group of the file containing the specified group.</td>
+ </tr>
+ <tr bordercolor="#FFFFFF">
+ <td bgcolor="#99cccc">Group ID</td>
+ <td bgcolor="#CCCCCC">
+ <div align="center">foo/bar</div>
+ </td>
+ <td>The object bar in group foo in the specified group.</td>
+ </tr>
+ <tr bordercolor="#FFFFFF">
+ <td bgcolor="#99cccc">File ID</td>
+ <td bgcolor="#CCCCCC">
+ <div align="center">.</div>
+ </td>
+ <td>The root group of the file.</td>
+ </tr>
+ <tr bordercolor="#FFFFFF">
+ <td bgcolor="#99cccc">Group ID</td>
+ <td bgcolor="#CCCCCC">
+ <div align="center">.</div>
+ </td>
+ <td>The specified group.</td>
+ </tr>
+ <tr bordercolor="#FFFFFF">
+ <td bgcolor="#99cccc">Other ID</td>
+ <td bgcolor="#CCCCCC">
+ <div align="center">.</div>
+ </td>
+ <td>The specified object.</td>
+ </tr>
+</table>
+
+
+<P>
+<H2> Programming Example</H2>
+<A NAME="desc">
+<H3><U>Description</U></H3>
+The following example code shows how to create groups using absolute
+and relative names. It creates three groups: the first two groups are
+created using the file identifier and the group absolute names, and the
+third group is created using a group identifier and the name relative
+to the specified group. <BR>
+[ <A HREF="examples/h5_crtgrpar.c">Download h5_crtgrpar.c</A> ]
+
+<PRE>
+
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+#include &lt;hdf5.h&gt;
+#define FILE "groups.h5"
+
+main() {
+
+ hid_t file_id, group1_id, group2_id, group3_id; /* identifiers */
+ herr_t status;
+
+ /* Create a new file using default properties. */
+ file_id = H5Fcreate(FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+
+ /* Create group "MyGroup" in the root group using absolute name. */
+ group1_id = H5Gcreate(file_id, "/MyGroup", 0);
+
+ /* Create group "Group_A" in group "MyGroup" using absolute name. */
+ group2_id = H5Gcreate(file_id, "/MyGroup/Group_A", 0);
+
+ /* Create group "Group_B" in group "MyGroup" using relative name. */
+ group3_id = H5Gcreate(group1_id, "Group_B", 0);
+
+ /* Close groups. */
+ status = H5Gclose(group1_id);
+ status = H5Gclose(group2_id);
+ status = H5Gclose(group3_id);
+
+ /* Close the file. */
+ status = H5Fclose(file_id);
+}
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+</PRE>
+
+
+<A NAME="rem">
+<H3><U>Remarks</U></H3>
+<UL>
+<LI> H5Gcreate creates a group at the location specified by a location ID and a
+ name. The location ID can be a file ID or a group ID and the name can be
+ relative or absolute.
+
+<LI> The first H5Gcreate creates the group 'MyGroup' in the root group of the
+ specified file.
+
+<LI> The second H5Gcreate creates the group 'Group_A' in the group 'MyGroup'
+ in the root group of the specified file. Note that the parent group (MyGroup)
+ already exists.
+
+<LI> The third H5Gcreate creates the group 'Group_B' in the specified group.
+</UL>
+<A NAME="fc">
+<H3><U>File Contents</U></H3>
+The file contents are shown below:
+<P>
+<B>Fig. 9.1</B> &nbsp; <I>The Contents of 'groups.h5'</I>
+<P>
+<!--<IMG src="groupsh5.jpg" width="285" height="383"></P> -->
+<IMG src="img004.gif"></P>
+
+
+ <B> Fig. 9.2</B> &nbsp; <I>'groups.h5' in DDL</I>
+<PRE>
+
+ HDF5 "groups.h5" {
+ GROUP "/" {
+ GROUP "MyGroup" {
+ GROUP "Group_A" {
+ }
+ GROUP "Group_B" {
+ }
+ }
+ }
+ }
+
+</PRE>
+
+<!-- BEGIN FOOTER INFO -->
+
+<P><hr noshade size=1>
+<font face="arial,helvetica" size="-1">
+ <a href="http://www.ncsa.uiuc.edu/"><img border=0
+ src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+ width=78 height=27 alt="NCSA"><br>
+ The National Center for Supercomputing Applications</A><br>
+ <a href="http://www.uiuc.edu/">University of Illinois
+ at Urbana-Champaign</a><br>
+ <br>
+<!-- <A HREF="helpdesk.mail.html"> -->
+<A HREF="mailto:hdfhelp@ncsa.uiuc.edu">
+hdfhelp@ncsa.uiuc.edu</A>
+<BR> <H6>Last Modified: August 27, 1999</H6><BR>
+<!-- modified by Barbara Jones - bljones@ncsa.uiuc.edu -->
+</FONT>
+<BR>
+<!-- <A HREF="mailto:hdfhelp@ncsa.uiuc.edu"> -->
+
+</BODY>
+</HTML>
+
+
+
diff --git a/doc/html/Tutor/crtgrpd.html b/doc/html/Tutor/crtgrpd.html
new file mode 100644
index 0000000..e92a101
--- /dev/null
+++ b/doc/html/Tutor/crtgrpd.html
@@ -0,0 +1,191 @@
+<HTML><HEAD>
+<TITLE>HDF5 Tutorial - Creating Datasets in Groups
+</TITLE>
+</HEAD>
+
+<body bgcolor="#ffffff">
+
+<!-- BEGIN MAIN BODY -->
+
+<A HREF="http://www.ncsa.uiuc.edu/"><img border=0
+src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+width=78 height=27 alt="NCSA"><P></A>
+
+ [ <A HREF="title.html"><I>HDF5 Tutorial Top</I></A> ]
+<H1>
+<BIG><BIG><BIG><FONT COLOR="#c101cd">Creating Datasets in Groups</FONT>
+</BIG></BIG></BIG></H1>
+
+<hr noshade size=1>
+
+<BODY>
+<H2>Contents:</H2>
+<UL>
+ <LI> <A HREF="#ds"> Creating datasets in groups</A>
+ <LI> Programming Example
+ <UL>
+ <LI> <A HREF="#desc">Description</A>
+<!-- <LI> <A HREF="#rem">Remarks</A> -->
+ <LI> <A HREF="#fc">File Contents</A>
+ </UL>
+</UL>
+<HR>
+<A NAME="ds">
+<H2><U>Creating datasets in groups</U></H2>
+We have shown how to create groups, datasets and attributes. In this section,
+we show how to create datasets in groups. Recall that H5Dcreate creates a
+dataset at the location specified by a location identifier and a name. Similar to
+H5Gcreate, the location identifier can be a file identifier or a group identifier and the name can be
+relative or absolute. The location identifier and the name together determine the
+location where the dataset is to be created. If the location identifier and name
+refers to a group, then the dataset is created in that group.
+
+
+<H2> Programming Example</H2>
+<A NAME="desc">
+<H3><U>Description</U></H3>
+This example shows how to create a dataset in a particular group.
+It opens the file created in the previous example and creates two datasets.<BR>
+[ <A HREF="examples/h5_crtgrpd.c">Download h5_crtgrpd.c</A> ]
+<PRE>
+
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+#include &lt;hdf5.h&gt;
+#define FILE "groups.h5"
+
+main() {
+
+ hid_t file_id, group_id, dataset_id, dataspace_id; /* identifiers */
+ hsize_t dims[2];
+ herr_t status;
+ int i, j, dset1_data[3][3], dset2_data[2][10];
+
+ /* Initialize the first dataset. */
+ for (i = 0; i &lt; 3; i++)
+ for (j = 0; j &lt; 3; j++)
+ dset1_data[i][j] = j + 1;
+
+ /* Initialize the second dataset. */
+ for (i = 0; i &lt; 2; i++)
+ for (j = 0; j &lt; 10; j++)
+ dset2_data[i][j] = j + 1;
+
+ /* Open an existing file. */
+ file_id = H5Fopen(FILE, H5F_ACC_RDWR, H5P_DEFAULT);
+
+ /* Create the data space for the first dataset. */
+ dims[0] = 3;
+ dims[1] = 3;
+ dataspace_id = H5Screate_simple(2, dims, NULL);
+
+ /* Create a dataset in group "MyGroup". */
+ dataset_id = H5Dcreate(file_id, "/MyGroup/dset1", H5T_STD_I32BE, dataspace_id
+,
+ H5P_DEFAULT);
+
+ /* Write the first dataset. */
+ status = H5Dwrite(dataset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT,
+ dset1_data);
+
+ /* Close the data space for the first dataset. */
+ status = H5Sclose(dataspace_id);
+
+ /* Close the first dataset. */
+ status = H5Dclose(dataset_id);
+
+ /* Open an existing group of the specified file. */
+ group_id = H5Gopen(file_id, "/MyGroup/Group_A");
+
+ /* Create the data space for the second dataset. */
+ dims[0] = 2;
+ dims[1] = 10;
+ dataspace_id = H5Screate_simple(2, dims, NULL);
+
+ /* Create the second dataset in group "Group_A". */
+ dataset_id = H5Dcreate(group_id, "dset2", H5T_STD_I32BE, dataspace_id, H5P_DEFAULT);
+
+ /* Write the second dataset. */
+ status = H5Dwrite(dataset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT,
+ dset2_data);
+
+ /* Close the data space for the second dataset. */
+ status = H5Sclose(dataspace_id);
+
+ /* Close the second dataset */
+ status = H5Dclose(dataset_id);
+
+ /* Close the group. */
+ status = H5Gclose(group_id);
+
+ /* Close the file. */
+ status = H5Fclose(file_id);
+}
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+</PRE>
+
+
+<A NAME="fc">
+<H3><U>File Contents</U></H3>
+<P>
+<B>Fig. 10.1</B> &nbsp; <I>The Contents of 'groups.h5'</I>
+<PRE>
+<IMG src="img005.gif"></PRE>
+<!-- <IMG src="groups2.jpg" width="324" height="433"></PRE> -->
+
+</PRE>
+ <B>Fig. 10.2</B> &nbsp; <I>'groups.h5' in DDL</I>
+<PRE>
+
+ HDF5 "groups.h5" {
+ GROUP "/" {
+ GROUP "MyGroup" {
+ GROUP "Group_A" {
+ DATASET "dset2" {
+ DATATYPE { H5T_STD_I32BE }
+ DATASPACE { SIMPLE ( 2, 10 ) / ( 2, 10 ) }
+ DATA {
+ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
+ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
+ }
+ }
+ }
+ GROUP "Group_B" {
+ }
+ DATASET "dset1" {
+ DATATYPE { H5T_STD_I32BE }
+ DATASPACE { SIMPLE ( 3, 3 ) / ( 3, 3 ) }
+ DATA {
+ 1, 2, 3,
+ 1, 2, 3,
+ 1, 2, 3
+ }
+ }
+ }
+ }
+ }
+</PRE>
+
+
+<!-- BEGIN FOOTER INFO -->
+
+<P><hr noshade size=1>
+<font face="arial,helvetica" size="-1">
+ <a href="http://www.ncsa.uiuc.edu/"><img border=0
+ src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+ width=78 height=27 alt="NCSA"><br>The National Center for Supercomputing Applications</A><br>
+ <a href="http://www.uiuc.edu/">University of Illinois at Urbana-Champaign</a><br>
+<!-- <A HREF="helpdesk.mail.html"> -->
+<BR><A HREF="mailto:hdfhelp@ncsa.uiuc.edu">
+hdfhelp@ncsa.uiuc.edu</A>
+<BR> <H6>Last Modified: August 27, 1999</H6><BR>
+<!-- modified by Barbara Jones - bljones@ncsa.uiuc.edu -->
+</FONT>
+<BR>
+<!-- <A HREF="mailto:hdfhelp@ncsa.uiuc.edu"> -->
+
+</BODY>
+</HTML>
+
+
+
diff --git a/doc/html/Tutor/examples/h5_compound.c b/doc/html/Tutor/examples/h5_compound.c
new file mode 100644
index 0000000..4bb4ad1
--- /dev/null
+++ b/doc/html/Tutor/examples/h5_compound.c
@@ -0,0 +1,153 @@
+/*
+ * This example shows how to create a compound data type,
+ * write an array which has the compound data type to the file,
+ * and read back fields' subsets.
+ */
+
+#include "hdf5.h"
+
+#define FILE "SDScompound.h5"
+#define DATASETNAME "ArrayOfStructures"
+#define LENGTH 10
+#define RANK 1
+
+int
+main(void)
+{
+
+ /* First structure and dataset*/
+ typedef struct s1_t {
+ int a;
+ float b;
+ double c;
+ } s1_t;
+ s1_t s1[LENGTH];
+ hid_t s1_tid; /* File datatype identifier */
+
+ /* Second structure (subset of s1_t) and dataset*/
+ typedef struct s2_t {
+ double c;
+ int a;
+ } s2_t;
+ s2_t s2[LENGTH];
+ hid_t s2_tid; /* Memory datatype handle */
+
+ /* Third "structure" ( will be used to read float field of s1) */
+ hid_t s3_tid; /* Memory datatype handle */
+ float s3[LENGTH];
+
+ int i;
+ hid_t file, dataset, space; /* Handles */
+ herr_t status;
+ hsize_t dim[] = {LENGTH}; /* Dataspace dimensions */
+
+
+ /*
+ * Initialize the data
+ */
+ for (i = 0; i< LENGTH; i++) {
+ s1[i].a = i;
+ s1[i].b = i*i;
+ s1[i].c = 1./(i+1);
+ }
+
+ /*
+ * Create the data space.
+ */
+ space = H5Screate_simple(RANK, dim, NULL);
+
+ /*
+ * Create the file.
+ */
+ file = H5Fcreate(FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+
+ /*
+ * Create the memory data type.
+ */
+ s1_tid = H5Tcreate (H5T_COMPOUND, sizeof(s1_t));
+ H5Tinsert(s1_tid, "a_name", HOFFSET(s1_t, a), H5T_NATIVE_INT);
+ H5Tinsert(s1_tid, "c_name", HOFFSET(s1_t, c), H5T_NATIVE_DOUBLE);
+ H5Tinsert(s1_tid, "b_name", HOFFSET(s1_t, b), H5T_NATIVE_FLOAT);
+
+ /*
+ * Create the dataset.
+ */
+ dataset = H5Dcreate(file, DATASETNAME, s1_tid, space, H5P_DEFAULT);
+
+ /*
+ * Wtite data to the dataset;
+ */
+ status = H5Dwrite(dataset, s1_tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, s1);
+
+ /*
+ * Release resources
+ */
+ H5Tclose(s1_tid);
+ H5Sclose(space);
+ H5Dclose(dataset);
+ H5Fclose(file);
+
+ /*
+ * Open the file and the dataset.
+ */
+ file = H5Fopen(FILE, H5F_ACC_RDONLY, H5P_DEFAULT);
+
+ dataset = H5Dopen(file, DATASETNAME);
+
+ /*
+ * Create a data type for s2
+ */
+ s2_tid = H5Tcreate(H5T_COMPOUND, sizeof(s2_t));
+
+ H5Tinsert(s2_tid, "c_name", HOFFSET(s2_t, c), H5T_NATIVE_DOUBLE);
+ H5Tinsert(s2_tid, "a_name", HOFFSET(s2_t, a), H5T_NATIVE_INT);
+
+ /*
+ * Read two fields c and a from s1 dataset. Fields in the file
+ * are found by their names "c_name" and "a_name".
+ */
+ status = H5Dread(dataset, s2_tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, s2);
+
+ /*
+ * Display the fields
+ */
+ printf("\n");
+ printf("Field c : \n");
+ for( i = 0; i < LENGTH; i++) printf("%.4f ", s2[i].c);
+ printf("\n");
+
+ printf("\n");
+ printf("Field a : \n");
+ for( i = 0; i < LENGTH; i++) printf("%d ", s2[i].a);
+ printf("\n");
+
+ /*
+ * Create a data type for s3.
+ */
+ s3_tid = H5Tcreate(H5T_COMPOUND, sizeof(float));
+
+ status = H5Tinsert(s3_tid, "b_name", 0, H5T_NATIVE_FLOAT);
+
+ /*
+ * Read field b from s1 dataset. Field in the file is found by its name.
+ */
+ status = H5Dread(dataset, s3_tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, s3);
+
+ /*
+ * Display the field
+ */
+ printf("\n");
+ printf("Field b : \n");
+ for( i = 0; i < LENGTH; i++) printf("%.4f ", s3[i]);
+ printf("\n");
+
+ /*
+ * Release resources
+ */
+ H5Tclose(s2_tid);
+ H5Tclose(s3_tid);
+ H5Dclose(dataset);
+ H5Fclose(file);
+
+ return 0;
+}
diff --git a/doc/html/Tutor/examples/h5_copy.c b/doc/html/Tutor/examples/h5_copy.c
new file mode 100644
index 0000000..b0a5e00
--- /dev/null
+++ b/doc/html/Tutor/examples/h5_copy.c
@@ -0,0 +1,148 @@
+/***********************************************************************/
+/* */
+/* PROGRAM: h5_copy.c */
+/* PURPOSE: Shows how to use the H5SCOPY function. */
+/* DESCRIPTION: */
+/* This program creates two files, copy1.h5, and copy2.h5. */
+/* In copy1.h5, it creates a 3x4 dataset called 'Copy1', */
+/* and write 0's to this dataset. */
+/* In copy2.h5, it create a 3x4 dataset called 'Copy2', */
+/* and write 1's to this dataset. */
+/* It closes both files, reopens both files, selects two */
+/* points in copy1.h5 and writes values to them. Then it */
+/* does an H5Scopy from the first file to the second, and */
+/* writes the values to copy2.h5. It then closes the */
+/* files, reopens them, and prints the contents of the */
+/* two datasets. */
+/* */
+/***********************************************************************/
+
+#include "hdf5.h"
+#define FILE1 "copy1.h5"
+#define FILE2 "copy2.h5"
+
+#define RANK 2
+#define DIM1 3
+#define DIM2 4
+#define NUMP 2
+
+int main (void)
+{
+ hid_t file1, file2, dataset1, dataset2;
+ hid_t mid1, mid2, fid1, fid2;
+ hsize_t fdim[] = {DIM1, DIM2};
+ hsize_t mdim[] = {DIM1, DIM2};
+ hsize_t start[2], stride[2], count[2], block[2];
+ int buf1[DIM1][DIM2];
+ int buf2[DIM1][DIM2];
+ int bufnew[DIM1][DIM2];
+ int val[] = {53, 59};
+ hsize_t marray[] = {2};
+ hssize_t coord[NUMP][RANK];
+ herr_t ret;
+ uint i, j;
+
+/***********************************************************************/
+/* */
+/* Create two files containing identical datasets. Write 0's to one */
+/* and 1's to the other. */
+/* */
+/***********************************************************************/
+
+ for ( i = 0; i < DIM1; i++ )
+ for ( j = 0; j < DIM2; j++ )
+ buf1[i][j] = 0;
+
+ for ( i = 0; i < DIM1; i++ )
+ for ( j = 0; j < DIM2; j++ )
+ buf2[i][j] = 1;
+
+ file1 = H5Fcreate(FILE1, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+ file2 = H5Fcreate(FILE2, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+
+ fid1 = H5Screate_simple (RANK, fdim, NULL);
+ fid2 = H5Screate_simple (RANK, fdim, NULL);
+
+ dataset1 = H5Dcreate (file1, "Copy1", H5T_NATIVE_INT, fid1, H5P_DEFAULT);
+ dataset2 = H5Dcreate (file2, "Copy2", H5T_NATIVE_INT, fid2, H5P_DEFAULT);
+
+ ret = H5Dwrite(dataset1, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf1);
+ ret = H5Dwrite(dataset2, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf2);
+
+ ret = H5Dclose (dataset1);
+ ret = H5Dclose (dataset2);
+
+ ret = H5Sclose (fid1);
+ ret = H5Sclose (fid2);
+
+ ret = H5Fclose (file1);
+ ret = H5Fclose (file2);
+
+/***********************************************************************/
+/* */
+/* Open the two files. Select two points in one file, write values to */
+/* those point locations, then do H5Scopy and write the values to the */
+/* other file. Close files. */
+/* */
+/***********************************************************************/
+
+ file1 = H5Fopen (FILE1, H5F_ACC_RDWR, H5P_DEFAULT);
+ file2 = H5Fopen (FILE2, H5F_ACC_RDWR, H5P_DEFAULT);
+ dataset1 = H5Dopen (file1, "Copy1");
+ dataset2 = H5Dopen (file2, "Copy2");
+ fid1 = H5Dget_space (dataset1);
+ mid1 = H5Screate_simple(1, marray, NULL);
+ coord[0][0] = 0; coord[0][1] = 3;
+ coord[1][0] = 0; coord[1][1] = 1;
+
+ ret = H5Sselect_elements (fid1, H5S_SELECT_SET, NUMP, (const hssize_t **)coord);
+
+ ret = H5Dwrite (dataset1, H5T_NATIVE_INT, mid1, fid1, H5P_DEFAULT, val);
+
+ fid2 = H5Scopy (fid1);
+
+ ret = H5Dwrite (dataset2, H5T_NATIVE_INT, mid1, fid2, H5P_DEFAULT, val);
+
+ ret = H5Dclose (dataset1);
+ ret = H5Dclose (dataset2);
+ ret = H5Sclose (fid1);
+ ret = H5Sclose (fid2);
+ ret = H5Fclose (file1);
+ ret = H5Fclose (file2);
+ ret = H5Sclose (mid1);
+
+/***********************************************************************/
+/* */
+/* Open both files and print the contents of the datasets. */
+/* */
+/***********************************************************************/
+
+ file1 = H5Fopen (FILE1, H5F_ACC_RDWR, H5P_DEFAULT);
+ file2 = H5Fopen (FILE2, H5F_ACC_RDWR, H5P_DEFAULT);
+ dataset1 = H5Dopen (file1, "Copy1");
+ dataset2 = H5Dopen (file2, "Copy2");
+
+ ret = H5Dread (dataset1, H5T_NATIVE_INT, H5S_ALL, H5S_ALL,
+ H5P_DEFAULT, bufnew);
+
+ printf ("\nDataset 'Copy1' in file 'copy1.h5' contains: \n");
+ for (i=0;i<DIM1; i++) {
+ for (j=0;j<DIM2;j++) printf ("%3d ", bufnew[i][j]);
+ printf("\n");
+ }
+
+ printf ("\nDataset 'Copy2' in file 'copy2.h5' contains: \n");
+
+ ret = H5Dread (dataset2, H5T_NATIVE_INT, H5S_ALL, H5S_ALL,
+ H5P_DEFAULT, bufnew);
+
+ for (i=0;i<DIM1; i++) {
+ for (j=0;j<DIM2;j++) printf ("%3d ", bufnew[i][j]);
+ printf("\n");
+ }
+ ret = H5Dclose (dataset1);
+ ret = H5Dclose (dataset2);
+ ret = H5Fclose (file1);
+ ret = H5Fclose (file2);
+
+}
diff --git a/doc/html/Tutor/examples/h5_crtatt.c b/doc/html/Tutor/examples/h5_crtatt.c
new file mode 100644
index 0000000..a2b887c
--- /dev/null
+++ b/doc/html/Tutor/examples/h5_crtatt.c
@@ -0,0 +1,46 @@
+/*
+ * Creating a dataset attribute.
+ */
+
+#include <hdf5.h>
+#define FILE "dset.h5"
+
+main() {
+
+ hid_t file_id, dataset_id, attribute_id, dataspace_id; /* identifiers */
+ hsize_t dims;
+ int attr_data[2];
+ herr_t status;
+
+ /* Initialize the attribute data. */
+ attr_data[0] = 100;
+ attr_data[1] = 200;
+
+ /* Open an existing file. */
+ file_id = H5Fopen(FILE, H5F_ACC_RDWR, H5P_DEFAULT);
+
+ /* Open an existing dataset. */
+ dataset_id = H5Dopen(file_id, "/dset");
+
+ /* Create the data space for the attribute. */
+ dims = 2;
+ dataspace_id = H5Screate_simple(1, &dims, NULL);
+
+ /* Create a dataset attribute. */
+ attribute_id = H5Acreate(dataset_id, "attr", H5T_STD_I32BE, dataspace_id, H5P_DEFAULT);
+
+ /* Write the attribute data. */
+ status = H5Awrite(attribute_id, H5T_NATIVE_INT, attr_data);
+
+ /* Close the attribute. */
+ status = H5Aclose(attribute_id);
+
+ /* Close the dataspace. */
+ status = H5Sclose(dataspace_id);
+
+ /* Close to the dataset. */
+ status = H5Dclose(dataset_id);
+
+ /* Close the file. */
+ status = H5Fclose(file_id);
+}
diff --git a/doc/html/Tutor/examples/h5_crtdat.c b/doc/html/Tutor/examples/h5_crtdat.c
new file mode 100644
index 0000000..d704cf1
--- /dev/null
+++ b/doc/html/Tutor/examples/h5_crtdat.c
@@ -0,0 +1,34 @@
+/*
+ * Creating and closing a dataset.
+ */
+
+#include <hdf5.h>
+#define FILE "dset.h5"
+
+main() {
+
+ hid_t file_id, dataset_id, dataspace_id; /* identifiers */
+ hsize_t dims[2];
+ herr_t status;
+
+ /* Create a new file using default properties. */
+ file_id = H5Fcreate(FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+
+ /* Create the data space for the dataset. */
+ dims[0] = 4;
+ dims[1] = 6;
+ dataspace_id = H5Screate_simple(2, dims, NULL);
+
+ /* Create the dataset. */
+ dataset_id = H5Dcreate(file_id, "/dset", H5T_STD_I32BE, dataspace_id, H5P_DEFAULT);
+
+ /* End access to the dataset and release resources used by it. */
+ status = H5Dclose(dataset_id);
+
+ /* Terminate access to the data space. */
+ status = H5Sclose(dataspace_id);
+
+ /* Close the file. */
+ status = H5Fclose(file_id);
+}
+
diff --git a/doc/html/Tutor/examples/h5_crtfile.c b/doc/html/Tutor/examples/h5_crtfile.c
new file mode 100644
index 0000000..680cde8
--- /dev/null
+++ b/doc/html/Tutor/examples/h5_crtfile.c
@@ -0,0 +1,19 @@
+/*
+ * Creating and closing a file.
+ */
+
+#include <hdf5.h>
+#define FILE "file.h5"
+
+main() {
+
+ hid_t file_id; /* file identifier */
+ herr_t status;
+
+ /* Create a new file using default properties. */
+ file_id = H5Fcreate(FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+
+ /* Terminate access to the file. */
+ status = H5Fclose(file_id);
+}
+
diff --git a/doc/html/Tutor/examples/h5_crtgrp.c b/doc/html/Tutor/examples/h5_crtgrp.c
new file mode 100644
index 0000000..a6aad93
--- /dev/null
+++ b/doc/html/Tutor/examples/h5_crtgrp.c
@@ -0,0 +1,24 @@
+/*
+ * Creating and closing a group.
+ */
+
+#include <hdf5.h>
+#define FILE "group.h5"
+
+main() {
+
+ hid_t file_id, group_id; /* identifiers */
+ herr_t status;
+
+ /* Create a new file using default properties. */
+ file_id = H5Fcreate(FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+
+ /* Create a group named "/MyGroup" in the file. */
+ group_id = H5Gcreate(file_id, "/MyGroup", 0);
+
+ /* Close the group. */
+ status = H5Gclose(group_id);
+
+ /* Terminate access to the file. */
+ status = H5Fclose(file_id);
+}
diff --git a/doc/html/Tutor/examples/h5_crtgrpar.c b/doc/html/Tutor/examples/h5_crtgrpar.c
new file mode 100644
index 0000000..6dcc003
--- /dev/null
+++ b/doc/html/Tutor/examples/h5_crtgrpar.c
@@ -0,0 +1,32 @@
+/*
+ * Creating groups using absolute and relative names.
+ */
+
+#include <hdf5.h>
+#define FILE "groups.h5"
+
+main() {
+
+ hid_t file_id, group1_id, group2_id, group3_id; /* identifiers */
+ herr_t status;
+
+ /* Create a new file using default properties. */
+ file_id = H5Fcreate(FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+
+ /* Create group "MyGroup" in the root group using absolute name. */
+ group1_id = H5Gcreate(file_id, "/MyGroup", 0);
+
+ /* Create group "Group_A" in group "MyGroup" using absolute name. */
+ group2_id = H5Gcreate(file_id, "/MyGroup/Group_A", 0);
+
+ /* Create group "Group_B" in group "MyGroup" using relative name. */
+ group3_id = H5Gcreate(group1_id, "Group_B", 0);
+
+ /* Close groups. */
+ status = H5Gclose(group1_id);
+ status = H5Gclose(group2_id);
+ status = H5Gclose(group3_id);
+
+ /* Close the file. */
+ status = H5Fclose(file_id);
+}
diff --git a/doc/html/Tutor/examples/h5_crtgrpd.c b/doc/html/Tutor/examples/h5_crtgrpd.c
new file mode 100644
index 0000000..e497764
--- /dev/null
+++ b/doc/html/Tutor/examples/h5_crtgrpd.c
@@ -0,0 +1,74 @@
+/*
+ * Create two datasets within groups.
+ */
+
+#include <hdf5.h>
+#define FILE "groups.h5"
+
+main() {
+
+ hid_t file_id, group_id, dataset_id, dataspace_id; /* identifiers */
+ hsize_t dims[2];
+ herr_t status;
+ int i, j, dset1_data[3][3], dset2_data[2][10];
+
+ /* Initialize the first dataset. */
+ for (i = 0; i < 3; i++)
+ for (j = 0; j < 3; j++)
+ dset1_data[i][j] = j + 1;
+
+ /* Initialize the second dataset. */
+ for (i = 0; i < 2; i++)
+ for (j = 0; j < 10; j++)
+ dset2_data[i][j] = j + 1;
+
+ /* Open an existing file. */
+ file_id = H5Fopen(FILE, H5F_ACC_RDWR, H5P_DEFAULT);
+
+ /* Create the data space for the first dataset. */
+ dims[0] = 3;
+ dims[1] = 3;
+ dataspace_id = H5Screate_simple(2, dims, NULL);
+
+ /* Create a dataset in group "MyGroup". */
+ dataset_id = H5Dcreate(file_id, "/MyGroup/dset1", H5T_STD_I32BE, dataspace_id,
+ H5P_DEFAULT);
+
+ /* Write the first dataset. */
+ status = H5Dwrite(dataset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT,
+ dset1_data);
+
+ /* Close the data space for the first dataset. */
+ status = H5Sclose(dataspace_id);
+
+ /* Close the first dataset. */
+ status = H5Dclose(dataset_id);
+
+ /* Open an existing group of the specified file. */
+ group_id = H5Gopen(file_id, "/MyGroup/Group_A");
+
+ /* Create the data space for the second dataset. */
+ dims[0] = 2;
+ dims[1] = 10;
+ dataspace_id = H5Screate_simple(2, dims, NULL);
+
+ /* Create the second dataset in group "Group_A". */
+ dataset_id = H5Dcreate(group_id, "dset2", H5T_STD_I32BE, dataspace_id, H5P_DEFAULT);
+
+ /* Write the second dataset. */
+ status = H5Dwrite(dataset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT,
+ dset2_data);
+
+ /* Close the data space for the second dataset. */
+ status = H5Sclose(dataspace_id);
+
+ /* Close the second dataset */
+ status = H5Dclose(dataset_id);
+
+ /* Close the group. */
+ status = H5Gclose(group_id);
+
+ /* Close the file. */
+ status = H5Fclose(file_id);
+}
+
diff --git a/doc/html/Tutor/examples/h5_extend.c b/doc/html/Tutor/examples/h5_extend.c
new file mode 100644
index 0000000..ae26ed6
--- /dev/null
+++ b/doc/html/Tutor/examples/h5_extend.c
@@ -0,0 +1,141 @@
+/**************************************************************
+ *
+ * This example shows how to work with extendible datasets.
+ * In the current version of the library a dataset MUST be
+ * chunked in order to be extendible.
+ *
+ * This example is derived from the h5_extend_write.c and
+ * h5_read_chunk.c examples that are in the "Introduction
+ * to HDF5".
+ *
+ *************************************************************/
+
+#include "hdf5.h"
+
+#define FILE "ext.h5"
+#define DATASETNAME "ExtendibleArray"
+#define RANK 2
+
+int
+main (void)
+{
+ hid_t file; /* handles */
+ hid_t dataspace, dataset;
+ hid_t filespace;
+ hid_t cparms;
+ hid_t memspace;
+
+ hsize_t dims[2] = { 3, 3}; /* dataset dimensions
+ at creation time */
+ hsize_t dims1[2] = { 3, 3}; /* data1 dimensions */
+ hsize_t dims2[2] = { 7, 1}; /* data2 dimensions */
+
+ hsize_t maxdims[2] = {H5S_UNLIMITED, H5S_UNLIMITED};
+ hsize_t size[2];
+ hssize_t offset[2];
+ hsize_t i,j;
+ herr_t status, status_n;
+ int data1[3][3] = { {1, 1, 1}, /* data to write */
+ {1, 1, 1},
+ {1, 1, 1} };
+
+ int data2[7] = { 2, 2, 2, 2, 2, 2, 2};
+
+ /* Variables used in reading data back */
+ hsize_t chunk_dims[2] ={2, 5};
+ hsize_t chunk_dimsr[2];
+ hsize_t dimsr[2];
+ int data_out[10][3];
+ int rank, rank_chunk;
+
+ /* Create the data space with unlimited dimensions. */
+ dataspace = H5Screate_simple (RANK, dims, maxdims);
+
+ /* Create a new file. If file exists its contents will be overwritten. */
+ file = H5Fcreate (FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+
+ /* Modify dataset creation properties, i.e. enable chunking */
+ cparms = H5Pcreate (H5P_DATASET_CREATE);
+ status = H5Pset_chunk ( cparms, RANK, chunk_dims);
+
+ /* Create a new dataset within the file using cparms
+ creation properties. */
+ dataset = H5Dcreate (file, DATASETNAME, H5T_NATIVE_INT, dataspace,
+ cparms);
+
+ /* Extend the dataset. This call assures that dataset is 3 x 3.*/
+ size[0] = 3;
+ size[1] = 3;
+ status = H5Dextend (dataset, size);
+
+ /* Select a hyperslab */
+ filespace = H5Dget_space (dataset);
+ offset[0] = 0;
+ offset[1] = 0;
+ status = H5Sselect_hyperslab (filespace, H5S_SELECT_SET, offset, NULL,
+ dims1, NULL);
+
+ /* Write the data to the hyperslab */
+ status = H5Dwrite (dataset, H5T_NATIVE_INT, dataspace, filespace,
+ H5P_DEFAULT, data1);
+
+ /* Extend the dataset. Dataset becomes 10 x 3 */
+ dims[0] = dims1[0] + dims2[0];
+ size[0] = dims[0];
+ size[1] = dims[1];
+ status = H5Dextend (dataset, size);
+
+ /* Select a hyperslab */
+ filespace = H5Dget_space (dataset);
+ offset[0] = 3;
+ offset[1] = 0;
+ status = H5Sselect_hyperslab (filespace, H5S_SELECT_SET, offset, NULL,
+ dims2, NULL);
+
+ /* Define memory space */
+ dataspace = H5Screate_simple (RANK, dims2, NULL);
+
+ /* Write the data to the hyperslab */
+ status = H5Dwrite (dataset, H5T_NATIVE_INT, dataspace, filespace,
+ H5P_DEFAULT, data2);
+
+ /* Close resources */
+ status = H5Dclose (dataset);
+ status = H5Sclose (dataspace);
+ status = H5Sclose (filespace);
+ status = H5Fclose (file);
+
+/****************************************************************
+ Read the data back
+ ***************************************************************/
+
+ file = H5Fopen (FILE, H5F_ACC_RDONLY, H5P_DEFAULT);
+ dataset = H5Dopen (file, DATASETNAME);
+ filespace = H5Dget_space (dataset);
+ rank = H5Sget_simple_extent_ndims (filespace);
+ status_n = H5Sget_simple_extent_dims (filespace, dimsr, NULL);
+
+ cparms = H5Dget_create_plist (dataset);
+ if (H5D_CHUNKED == H5Pget_layout (cparms))
+ {
+ rank_chunk = H5Pget_chunk (cparms, 2, chunk_dimsr);
+ }
+
+ memspace = H5Screate_simple (rank,dimsr,NULL);
+ status = H5Dread (dataset, H5T_NATIVE_INT, memspace, filespace,
+ H5P_DEFAULT, data_out);
+ printf("\n");
+ printf("Dataset: \n");
+ for (j = 0; j < dimsr[0]; j++)
+ {
+ for (i = 0; i < dimsr[1]; i++)
+ printf("%d ", data_out[j][i]);
+ printf("\n");
+ }
+
+ status = H5Pclose (cparms);
+ status = H5Dclose (dataset);
+ status = H5Sclose (filespace);
+ status = H5Sclose (memspace);
+ status = H5Fclose (file);
+}
diff --git a/doc/html/Tutor/examples/h5_hyperslab.c b/doc/html/Tutor/examples/h5_hyperslab.c
new file mode 100644
index 0000000..fc953d5
--- /dev/null
+++ b/doc/html/Tutor/examples/h5_hyperslab.c
@@ -0,0 +1,192 @@
+/************************************************************
+
+ This example shows how to write and read a hyperslab. It
+ is derived from the h5_read.c and h5_write.c examples in
+ the "Introduction to HDF5".
+
+ ************************************************************/
+
+#include "hdf5.h"
+
+#define FILE "sds.h5"
+#define DATASETNAME "IntArray"
+#define NX_SUB 3 /* hyperslab dimensions */
+#define NY_SUB 4
+#define NX 7 /* output buffer dimensions */
+#define NY 7
+#define NZ 3
+#define RANK 2
+#define RANK_OUT 3
+
+#define X 5 /* dataset dimensions */
+#define Y 6
+
+int
+main (void)
+{
+ hsize_t dimsf[2]; /* dataset dimensions */
+ int data[X][Y]; /* data to write */
+
+ /*
+ * Data and output buffer initialization.
+ */
+ hid_t file, dataset; /* handles */
+ hid_t dataspace;
+ hid_t memspace;
+ hsize_t dimsm[3]; /* memory space dimensions */
+ hsize_t dims_out[2]; /* dataset dimensions */
+ herr_t status;
+
+ int data_out[NX][NY][NZ ]; /* output buffer */
+
+ hsize_t count[2]; /* size of the hyperslab in the file */
+ hssize_t offset[2]; /* hyperslab offset in the file */
+ hsize_t count_out[3]; /* size of the hyperslab in memory */
+ hssize_t offset_out[3]; /* hyperslab offset in memory */
+ int i, j, k, status_n, rank;
+
+
+
+/*********************************************************
+ This writes data to the HDF5 file.
+ *********************************************************/
+
+ /*
+ * Data and output buffer initialization.
+ */
+ for (j = 0; j < X; j++) {
+ for (i = 0; i < Y; i++)
+ data[j][i] = i + j;
+ }
+ /*
+ * 0 1 2 3 4 5
+ * 1 2 3 4 5 6
+ * 2 3 4 5 6 7
+ * 3 4 5 6 7 8
+ * 4 5 6 7 8 9
+ */
+
+ /*
+ * Create a new file using H5F_ACC_TRUNC access,
+ * the default file creation properties, and the default file
+ * access properties.
+ */
+ file = H5Fcreate (FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+
+ /*
+ * Describe the size of the array and create the data space for fixed
+ * size dataset.
+ */
+ dimsf[0] = X;
+ dimsf[1] = Y;
+ dataspace = H5Screate_simple (RANK, dimsf, NULL);
+
+ /*
+ * Create a new dataset within the file using defined dataspace and
+ * default dataset creation properties.
+ */
+ dataset = H5Dcreate (file, DATASETNAME, H5T_STD_I32BE, dataspace,
+ H5P_DEFAULT);
+
+ /*
+ * Write the data to the dataset using default transfer properties.
+ */
+ status = H5Dwrite (dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL,
+ H5P_DEFAULT, data);
+
+ /*
+ * Close/release resources.
+ */
+ H5Sclose (dataspace);
+ H5Dclose (dataset);
+ H5Fclose (file);
+
+
+/*************************************************************
+
+ This reads the hyperslab from the sds.h5 file just
+ created, into a 2-dimensional plane of the 3-dimensional
+ array.
+
+ ************************************************************/
+
+ for (j = 0; j < NX; j++) {
+ for (i = 0; i < NY; i++) {
+ for (k = 0; k < NZ ; k++)
+ data_out[j][i][k] = 0;
+ }
+ }
+
+ /*
+ * Open the file and the dataset.
+ */
+ file = H5Fopen (FILE, H5F_ACC_RDONLY, H5P_DEFAULT);
+ dataset = H5Dopen (file, DATASETNAME);
+
+ dataspace = H5Dget_space (dataset); /* dataspace handle */
+ rank = H5Sget_simple_extent_ndims (dataspace);
+ status_n = H5Sget_simple_extent_dims (dataspace, dims_out, NULL);
+ printf("\nRank: %d\nDimensions: %lu x %lu \n", rank,
+ (unsigned long)(dims_out[0]), (unsigned long)(dims_out[1]));
+
+ /*
+ * Define hyperslab in the dataset.
+ */
+ offset[0] = 1;
+ offset[1] = 2;
+ count[0] = NX_SUB;
+ count[1] = NY_SUB;
+ status = H5Sselect_hyperslab (dataspace, H5S_SELECT_SET, offset, NULL,
+ count, NULL);
+
+ /*
+ * Define the memory dataspace.
+ */
+ dimsm[0] = NX;
+ dimsm[1] = NY;
+ dimsm[2] = NZ;
+ memspace = H5Screate_simple (RANK_OUT, dimsm, NULL);
+
+ /*
+ * Define memory hyperslab.
+ */
+ offset_out[0] = 3;
+ offset_out[1] = 0;
+ offset_out[2] = 0;
+ count_out[0] = NX_SUB;
+ count_out[1] = NY_SUB;
+ count_out[2] = 1;
+ status = H5Sselect_hyperslab (memspace, H5S_SELECT_SET, offset_out, NULL,
+ count_out, NULL);
+
+ /*
+ * Read data from hyperslab in the file into the hyperslab in
+ * memory and display.
+ */
+ status = H5Dread (dataset, H5T_NATIVE_INT, memspace, dataspace,
+ H5P_DEFAULT, data_out);
+ printf ("Data:\n ");
+ for (j = 0; j < NX; j++) {
+ for (i = 0; i < NY; i++) printf("%d ", data_out[j][i][0]);
+ printf("\n ");
+ }
+ printf("\n");
+ /*
+ * 0 0 0 0 0 0 0
+ * 0 0 0 0 0 0 0
+ * 0 0 0 0 0 0 0
+ * 3 4 5 6 0 0 0
+ * 4 5 6 7 0 0 0
+ * 5 6 7 8 0 0 0
+ * 0 0 0 0 0 0 0
+ */
+
+ /*
+ * Close and release resources.
+ */
+ H5Dclose (dataset);
+ H5Sclose (dataspace);
+ H5Sclose (memspace);
+ H5Fclose (file);
+
+}
diff --git a/doc/html/Tutor/examples/h5_iterate.c b/doc/html/Tutor/examples/h5_iterate.c
new file mode 100644
index 0000000..db58183
--- /dev/null
+++ b/doc/html/Tutor/examples/h5_iterate.c
@@ -0,0 +1,111 @@
+#include <hdf5.h>
+
+#define FILE "iterate.h5"
+#define FALSE 0
+
+/* 1-D dataset with fixed dimensions */
+#define SPACE1_NAME "Space1"
+#define SPACE1_RANK 1
+#define SPACE1_DIM1 4
+
+herr_t file_info(hid_t loc_id, const char *name, void *opdata);
+ /* Operator function */
+int
+main(void) {
+ hid_t file; /* HDF5 File IDs */
+ hid_t dataset; /* Dataset ID */
+ hid_t group; /* Group ID */
+ hid_t sid; /* Dataspace ID */
+ hid_t tid; /* Datatype ID */
+ hsize_t dims[] = {SPACE1_DIM1};
+ herr_t ret; /* Generic return value */
+
+/* Compound datatype */
+typedef struct s1_t {
+ unsigned int a;
+ unsigned int b;
+ float c;
+} s1_t;
+
+ /* Create file */
+ file = H5Fcreate(FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+
+ /* Create dataspace for datasets */
+ sid = H5Screate_simple(SPACE1_RANK, dims, NULL);
+
+ /* Create a group */
+ group=H5Gcreate(file,"Group1",-1);
+
+ /* Close a group */
+ ret = H5Gclose(group);
+
+ /* Create a dataset */
+ dataset=H5Dcreate(file,"Dataset1",H5T_STD_U32LE,sid,H5P_DEFAULT);
+
+ /* Close Dataset */
+ ret = H5Dclose(dataset);
+
+ /* Create a datatype */
+ tid = H5Tcreate (H5T_COMPOUND, sizeof(s1_t));
+
+ /* Insert fields */
+ ret=H5Tinsert (tid, "a", HOFFSET(s1_t,a), H5T_NATIVE_INT);
+
+ ret=H5Tinsert (tid, "b", HOFFSET(s1_t,b), H5T_NATIVE_INT);
+
+ ret=H5Tinsert (tid, "c", HOFFSET(s1_t,c), H5T_NATIVE_FLOAT);
+
+ /* Save datatype for later */
+ ret=H5Tcommit (file, "Datatype1", tid);
+
+ /* Close datatype */
+ ret = H5Tclose(tid);
+
+ /* Iterate through the file to see members of the root group */
+
+ printf(" Objects in the root group are:\n");
+ printf("\n");
+
+ H5Giterate(file, "/", NULL, file_info, NULL);
+
+ /* Close file */
+ ret = H5Fclose(file);
+
+ return 0;
+}
+
+/*
+ * Operator function.
+ */
+herr_t file_info(hid_t loc_id, const char *name, void *opdata)
+{
+ H5G_stat_t statbuf;
+
+ /*
+ * Get type of the object and display its name and type.
+ * The name of the object is passed to this function by
+ * the Library. Some magic :-)
+ */
+ H5Gget_objinfo(loc_id, name, FALSE, &statbuf);
+ switch (statbuf.type) {
+ case H5G_GROUP:
+ printf(" Object with name %s is a group \n", name);
+ break;
+ case H5G_DATASET:
+ printf(" Object with name %s is a dataset \n", name);
+ break;
+ case H5G_TYPE:
+ printf(" Object with name %s is a named datatype \n", name);
+ break;
+ default:
+ printf(" Unable to identify an object ");
+ }
+ return 0;
+ }
+
+
+
+
+
+
+
diff --git a/doc/html/Tutor/examples/h5_mount.c b/doc/html/Tutor/examples/h5_mount.c
new file mode 100644
index 0000000..452ad6e
--- /dev/null
+++ b/doc/html/Tutor/examples/h5_mount.c
@@ -0,0 +1,119 @@
+/*
+ * This program shows the concept of "mounting files".
+ * Program creates one file with group G in it, and another
+ * file with dataset D. Then second file is mounted in the first one
+ * under the "mounting point" G. Dataset D is accessed in the first file
+ * under name /G/D and data is printed out.
+ */
+
+#include<hdf5.h>
+
+#define FILE1 "mount1.h5"
+#define FILE2 "mount2.h5"
+
+#define RANK 2
+#define NX 4
+#define NY 5
+
+int main(void)
+{
+
+ hid_t fid1, fid2, gid; /* Files and group identifiers */
+ hid_t did, tid, sid; /* Dataset and datatype identifiers */
+
+ herr_t status;
+ hsize_t dims[] = {NX,NY}; /* Dataset dimensions */
+
+ int i, j;
+ int bm[NX][NY], bm_out[NX][NY]; /* Data buffers */
+
+ /*
+ * Initialization of buffer matrix "bm"
+ */
+ for(i =0; i<NX; i++) {
+ for(j = 0; j<NY; j++)
+ bm[i][j] = i + j;
+ }
+
+ /*
+ * Create first file and a group in it.
+ */
+ fid1 = H5Fcreate(FILE1, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+ gid = H5Gcreate(fid1, "/G", 0);
+
+ /*
+ * Close group and file
+ */
+ H5Gclose(gid);
+ H5Fclose(fid1);
+
+ /*
+ * Create second file and dataset "D" in it.
+ */
+ fid2 = H5Fcreate(FILE2, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+ dims[0] = NX;
+ dims[1] = NY;
+ sid = H5Screate_simple(RANK, dims, NULL);
+ did = H5Dcreate(fid2, "D", H5T_NATIVE_INT, sid, H5P_DEFAULT);
+
+ /*
+ * Write data to the dataset.
+ */
+ status = H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, bm);
+
+ /*
+ * Close all identifiers.
+ */
+ H5Sclose(sid);
+ H5Dclose(did);
+ H5Fclose(fid2);
+
+ /*
+ * Reopen both files
+ */
+ fid1 = H5Fopen(FILE1, H5F_ACC_RDONLY, H5P_DEFAULT);
+ fid2 = H5Fopen(FILE2, H5F_ACC_RDONLY, H5P_DEFAULT);
+
+ /*
+ * Mount second file under G in the first file.
+ */
+ H5Fmount(fid1, "/G", fid2, H5P_DEFAULT);
+
+ /*
+ * Access dataset D in the first file under /G/D name.
+ */
+ did = H5Dopen(fid1,"/G/D");
+ tid = H5Dget_type(did);
+ status = H5Dread(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, bm_out);
+
+ /*
+ * Print out the data.
+ */
+ for(i=0; i<NX; i++){
+ for(j=0; j<NY; j++)
+ printf(" %d", bm_out[i][j]);
+ printf("\n");
+ }
+
+ /*
+ * Close all identifers
+ */
+ H5Tclose(tid);
+ H5Dclose(did);
+
+ /*
+ * Unmounting second file
+ */
+ H5Funmount(fid1, "/G");
+
+ /*
+ * Close both files
+ */
+ H5Fclose(fid1);
+ H5Fclose(fid2);
+
+ return 0;
+}
+
+
+
diff --git a/doc/html/Tutor/examples/h5_rdwt.c b/doc/html/Tutor/examples/h5_rdwt.c
new file mode 100644
index 0000000..e651a29
--- /dev/null
+++ b/doc/html/Tutor/examples/h5_rdwt.c
@@ -0,0 +1,37 @@
+/*
+ * Writing and reading an existing dataset.
+ */
+
+#include <hdf5.h>
+#define FILE "dset.h5"
+
+main() {
+
+ hid_t file_id, dataset_id; /* identifiers */
+ herr_t status;
+ int i, j, dset_data[4][6];
+
+ /* Initialize the dataset. */
+ for (i = 0; i < 4; i++)
+ for (j = 0; j < 6; j++)
+ dset_data[i][j] = i * 6 + j + 1;
+
+ /* Open an existing file. */
+ file_id = H5Fopen(FILE, H5F_ACC_RDWR, H5P_DEFAULT);
+
+ /* Open an existing dataset. */
+ dataset_id = H5Dopen(file_id, "/dset");
+
+ /* Write the dataset. */
+ status = H5Dwrite(dataset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT,
+ dset_data);
+
+ status = H5Dread(dataset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT,
+ dset_data);
+
+ /* Close the dataset. */
+ status = H5Dclose(dataset_id);
+
+ /* Close the file. */
+ status = H5Fclose(file_id);
+}
diff --git a/doc/html/Tutor/examples/h5_read.c b/doc/html/Tutor/examples/h5_read.c
new file mode 100644
index 0000000..31cb882
--- /dev/null
+++ b/doc/html/Tutor/examples/h5_read.c
@@ -0,0 +1,136 @@
+/*
+ * This example reads hyperslab from the SDS.h5 file
+ * created by h5_write.c program into two-dimensional
+ * plane of the three-dimensional array.
+ * Information about dataset in the SDS.h5 file is obtained.
+ */
+
+#include "hdf5.h"
+
+#define FILE "SDS.h5"
+#define DATASETNAME "IntArray"
+#define NX_SUB 3 /* hyperslab dimensions */
+#define NY_SUB 4
+#define NX 7 /* output buffer dimensions */
+#define NY 7
+#define NZ 3
+#define RANK 2
+#define RANK_OUT 3
+
+int
+main (void)
+{
+ hid_t file, dataset; /* handles */
+ hid_t datatype, dataspace;
+ hid_t memspace;
+ H5T_class_t class; /* data type class */
+ H5T_order_t order; /* data order */
+ size_t size; /*
+ * size of the data element
+ * stored in file
+ */
+ hsize_t dimsm[3]; /* memory space dimensions */
+ hsize_t dims_out[2]; /* dataset dimensions */
+ herr_t status;
+
+ int data_out[NX][NY][NZ ]; /* output buffer */
+
+ hsize_t count[2]; /* size of the hyperslab in the file */
+ hssize_t offset[2]; /* hyperslab offset in the file */
+ hsize_t count_out[3]; /* size of the hyperslab in memory */
+ hssize_t offset_out[3]; /* hyperslab offset in memory */
+ int i, j, k, status_n, rank;
+
+ for (j = 0; j < NX; j++) {
+ for (i = 0; i < NY; i++) {
+ for (k = 0; k < NZ ; k++)
+ data_out[j][i][k] = 0;
+ }
+ }
+
+ /*
+ * Open the file and the dataset.
+ */
+ file = H5Fopen(FILE, H5F_ACC_RDONLY, H5P_DEFAULT);
+ dataset = H5Dopen(file, DATASETNAME);
+
+ /*
+ * Get datatype and dataspace handles and then query
+ * dataset class, order, size, rank and dimensions.
+ */
+ datatype = H5Dget_type(dataset); /* datatype handle */
+ class = H5Tget_class(datatype);
+ if (class == H5T_INTEGER) printf("Data set has INTEGER type \n");
+ order = H5Tget_order(datatype);
+ if (order == H5T_ORDER_LE) printf("Little endian order \n");
+
+ size = H5Tget_size(datatype);
+ printf(" Data size is %d \n", size);
+
+ dataspace = H5Dget_space(dataset); /* dataspace handle */
+ rank = H5Sget_simple_extent_ndims(dataspace);
+ status_n = H5Sget_simple_extent_dims(dataspace, dims_out, NULL);
+ printf("rank %d, dimensions %lu x %lu \n", rank,
+ (unsigned long)(dims_out[0]), (unsigned long)(dims_out[1]));
+
+ /*
+ * Define hyperslab in the dataset.
+ */
+ offset[0] = 1;
+ offset[1] = 2;
+ count[0] = NX_SUB;
+ count[1] = NY_SUB;
+ status = H5Sselect_hyperslab(dataspace, H5S_SELECT_SET, offset, NULL,
+ count, NULL);
+
+ /*
+ * Define the memory dataspace.
+ */
+ dimsm[0] = NX;
+ dimsm[1] = NY;
+ dimsm[2] = NZ ;
+ memspace = H5Screate_simple(RANK_OUT,dimsm,NULL);
+
+ /*
+ * Define memory hyperslab.
+ */
+ offset_out[0] = 3;
+ offset_out[1] = 0;
+ offset_out[2] = 0;
+ count_out[0] = NX_SUB;
+ count_out[1] = NY_SUB;
+ count_out[2] = 1;
+ status = H5Sselect_hyperslab(memspace, H5S_SELECT_SET, offset_out, NULL,
+ count_out, NULL);
+
+ /*
+ * Read data from hyperslab in the file into the hyperslab in
+ * memory and display.
+ */
+ status = H5Dread(dataset, H5T_NATIVE_INT, memspace, dataspace,
+ H5P_DEFAULT, data_out);
+ for (j = 0; j < NX; j++) {
+ for (i = 0; i < NY; i++) printf("%d ", data_out[j][i][0]);
+ printf("\n");
+ }
+ /*
+ * 0 0 0 0 0 0 0
+ * 0 0 0 0 0 0 0
+ * 0 0 0 0 0 0 0
+ * 3 4 5 6 0 0 0
+ * 4 5 6 7 0 0 0
+ * 5 6 7 8 0 0 0
+ * 0 0 0 0 0 0 0
+ */
+
+ /*
+ * Close/release resources.
+ */
+ H5Tclose(datatype);
+ H5Dclose(dataset);
+ H5Sclose(dataspace);
+ H5Sclose(memspace);
+ H5Fclose(file);
+
+ return 0;
+}
diff --git a/doc/html/Tutor/examples/h5_ref2objr.c b/doc/html/Tutor/examples/h5_ref2objr.c
new file mode 100644
index 0000000..a226778
--- /dev/null
+++ b/doc/html/Tutor/examples/h5_ref2objr.c
@@ -0,0 +1,93 @@
+#include <stdlib.h>
+#include <hdf5.h>
+
+#define FILE1 "trefer1.h5"
+
+/* dataset with fixed dimensions */
+#define SPACE1_NAME "Space1"
+#define SPACE1_RANK 1
+#define SPACE1_DIM1 4
+
+int
+main(void)
+{
+ hid_t fid1; /* HDF5 File IDs */
+ hid_t dataset, /* Dataset ID */
+ dset2; /* Dereferenced dataset ID */
+ hid_t group; /* Group ID */
+ hid_t sid1; /* Dataspace ID */
+ hid_t tid1; /* Datatype ID */
+ hobj_ref_t *rbuf; /* buffer to read from disk */
+ int *tu32; /* temp. buffer read from disk */
+ int i; /* counting variables */
+ char read_comment[10];
+ herr_t ret; /* Generic return value */
+
+ /* Allocate read buffers */
+ rbuf = malloc(sizeof(hobj_ref_t)*SPACE1_DIM1);
+ tu32 = malloc(sizeof(int)*SPACE1_DIM1);
+
+ /* Open the file */
+ fid1 = H5Fopen(FILE1, H5F_ACC_RDWR, H5P_DEFAULT);
+
+ /* Open the dataset */
+ dataset=H5Dopen(fid1,"/Dataset3");
+
+ /* Read selection from disk */
+ ret=H5Dread(dataset,H5T_STD_REF_OBJ,H5S_ALL,H5S_ALL,H5P_DEFAULT,rbuf);
+
+ /* Open dataset object */
+ dset2 = H5Rdereference(dataset,H5R_OBJECT,&rbuf[0]);
+
+ /* Check information in referenced dataset */
+ sid1 = H5Dget_space(dset2);
+
+ ret=H5Sget_simple_extent_npoints(sid1);
+
+ /* Read from disk */
+ ret=H5Dread(dset2,H5T_NATIVE_INT,H5S_ALL,H5S_ALL,H5P_DEFAULT,tu32);
+ printf("Dataset data : \n");
+ for (i=0; i < SPACE1_DIM1 ; i++) printf (" %d ", tu32[i]);
+ printf("\n");
+ printf("\n");
+
+ /* Close dereferenced Dataset */
+ ret = H5Dclose(dset2);
+
+ /* Open group object */
+ group = H5Rdereference(dataset,H5R_OBJECT,&rbuf[2]);
+
+ /* Get group's comment */
+ ret=H5Gget_comment(group,".",10,read_comment);
+ printf("Group comment is %s \n", read_comment);
+ printf(" \n");
+ /* Close group */
+ ret = H5Gclose(group);
+
+ /* Open datatype object */
+ tid1 = H5Rdereference(dataset,H5R_OBJECT,&rbuf[3]);
+
+ /* Verify correct datatype */
+ {
+ H5T_class_t tclass;
+
+ tclass= H5Tget_class(tid1);
+ if ((tclass == H5T_COMPOUND))
+ printf ("Number of compound datatype members is %d \n", H5Tget_nmembers(tid1));
+ printf(" \n");
+ }
+
+ /* Close datatype */
+ ret = H5Tclose(tid1);
+
+ /* Close Dataset */
+ ret = H5Dclose(dataset);
+
+ /* Close file */
+ ret = H5Fclose(fid1);
+
+ /* Free memory buffers */
+ free(rbuf);
+ free(tu32);
+ return 0;
+}
diff --git a/doc/html/Tutor/examples/h5_ref2objw.c b/doc/html/Tutor/examples/h5_ref2objw.c
new file mode 100644
index 0000000..d499f8e
--- /dev/null
+++ b/doc/html/Tutor/examples/h5_ref2objw.c
@@ -0,0 +1,120 @@
+
+#include <hdf5.h>
+
+#define FILE1 "trefer1.h5"
+
+/* 1-D dataset with fixed dimensions */
+#define SPACE1_NAME "Space1"
+#define SPACE1_RANK 1
+#define SPACE1_DIM1 4
+
+/* 2-D dataset with fixed dimensions */
+#define SPACE2_NAME "Space2"
+#define SPACE2_RANK 2
+#define SPACE2_DIM1 10
+#define SPACE2_DIM2 10
+
+int
+main(void) {
+ hid_t fid1; /* HDF5 File IDs */
+ hid_t dataset; /* Dataset ID */
+ hid_t group; /* Group ID */
+ hid_t sid1; /* Dataspace ID */
+ hid_t tid1; /* Datatype ID */
+ hsize_t dims1[] = {SPACE1_DIM1};
+ hobj_ref_t *wbuf; /* buffer to write to disk */
+ int *tu32; /* Temporary pointer to int data */
+ int i; /* counting variables */
+ const char *write_comment="Foo!"; /* Comments for group */
+ herr_t ret; /* Generic return value */
+
+/* Compound datatype */
+typedef struct s1_t {
+ unsigned int a;
+ unsigned int b;
+ float c;
+} s1_t;
+
+ /* Allocate write buffers */
+ wbuf=(hobj_ref_t *)malloc(sizeof(hobj_ref_t)*SPACE1_DIM1);
+ tu32=malloc(sizeof(int)*SPACE1_DIM1);
+
+ /* Create file */
+ fid1 = H5Fcreate(FILE1, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+
+ /* Create dataspace for datasets */
+ sid1 = H5Screate_simple(SPACE1_RANK, dims1, NULL);
+
+ /* Create a group */
+ group=H5Gcreate(fid1,"Group1",-1);
+
+ /* Set group's comment */
+ ret=H5Gset_comment(group,".",write_comment);
+
+ /* Create a dataset (inside Group1) */
+ dataset=H5Dcreate(group,"Dataset1",H5T_STD_U32LE,sid1,H5P_DEFAULT);
+
+ for(i=0; i<SPACE1_DIM1; i++)
+ tu32[i] = i*3;
+
+ /* Write selection to disk */
+ ret=H5Dwrite(dataset,H5T_NATIVE_INT,H5S_ALL,H5S_ALL,H5P_DEFAULT,tu32);
+
+ /* Close Dataset */
+ ret = H5Dclose(dataset);
+
+ /* Create another dataset (inside Group1) */
+ dataset=H5Dcreate(group,"Dataset2",H5T_NATIVE_UCHAR,sid1,H5P_DEFAULT);
+
+ /* Close Dataset */
+ ret = H5Dclose(dataset);
+
+ /* Create a datatype to refer to */
+ tid1 = H5Tcreate (H5T_COMPOUND, sizeof(s1_t));
+
+ /* Insert fields */
+ ret=H5Tinsert (tid1, "a", HOFFSET(s1_t,a), H5T_NATIVE_INT);
+
+ ret=H5Tinsert (tid1, "b", HOFFSET(s1_t,b), H5T_NATIVE_INT);
+
+ ret=H5Tinsert (tid1, "c", HOFFSET(s1_t,c), H5T_NATIVE_FLOAT);
+
+ /* Save datatype for later */
+ ret=H5Tcommit (group, "Datatype1", tid1);
+
+ /* Close datatype */
+ ret = H5Tclose(tid1);
+
+ /* Close group */
+ ret = H5Gclose(group);
+
+ /* Create a dataset to store references */
+ dataset=H5Dcreate(fid1,"Dataset3",H5T_STD_REF_OBJ,sid1,H5P_DEFAULT);
+
+ /* Create reference to dataset */
+ ret = H5Rcreate(&wbuf[0],fid1,"/Group1/Dataset1",H5R_OBJECT,-1);
+
+ /* Create reference to dataset */
+ ret = H5Rcreate(&wbuf[1],fid1,"/Group1/Dataset2",H5R_OBJECT,-1);
+
+ /* Create reference to group */
+ ret = H5Rcreate(&wbuf[2],fid1,"/Group1",H5R_OBJECT,-1);
+
+ /* Create reference to named datatype */
+ ret = H5Rcreate(&wbuf[3],fid1,"/Group1/Datatype1",H5R_OBJECT,-1);
+
+ /* Write selection to disk */
+ ret=H5Dwrite(dataset,H5T_STD_REF_OBJ,H5S_ALL,H5S_ALL,H5P_DEFAULT,wbuf);
+
+ /* Close disk dataspace */
+ ret = H5Sclose(sid1);
+
+ /* Close Dataset */
+ ret = H5Dclose(dataset);
+
+ /* Close file */
+ ret = H5Fclose(fid1);
+ free(wbuf);
+ free(tu32);
+ return 0;
+}
diff --git a/doc/html/Tutor/examples/h5_ref2regr.c b/doc/html/Tutor/examples/h5_ref2regr.c
new file mode 100644
index 0000000..9f747ae
--- /dev/null
+++ b/doc/html/Tutor/examples/h5_ref2regr.c
@@ -0,0 +1,119 @@
+#include <stdlib.h>
+#include <hdf5.h>
+
+#define FILE2 "trefer2.h5"
+#define NPOINTS 10
+
+/* 1-D dataset with fixed dimensions */
+#define SPACE1_NAME "Space1"
+#define SPACE1_RANK 1
+#define SPACE1_DIM1 4
+
+/* 2-D dataset with fixed dimensions */
+#define SPACE2_NAME "Space2"
+#define SPACE2_RANK 2
+#define SPACE2_DIM1 10
+#define SPACE2_DIM2 10
+
+int
+main(void)
+{
+ hid_t fid1; /* HDF5 File IDs */
+ hid_t dset1, /* Dataset ID */
+ dset2; /* Dereferenced dataset ID */
+ hid_t sid1, /* Dataspace ID #1 */
+ sid2; /* Dataspace ID #2 */
+ hsize_t * coords; /* Coordinate buffer */
+ hsize_t low[SPACE2_RANK]; /* Selection bounds */
+ hsize_t high[SPACE2_RANK]; /* Selection bounds */
+ hdset_reg_ref_t *rbuf; /* buffer to to read disk */
+ int *drbuf; /* Buffer for reading numeric data from disk */
+ int i, j; /* counting variables */
+ herr_t ret; /* Generic return value */
+
+ /* Output message about test being performed */
+
+ /* Allocate write & read buffers */
+ rbuf=malloc(sizeof(hdset_reg_ref_t)*SPACE1_DIM1);
+ drbuf=calloc(sizeof(int),SPACE2_DIM1*SPACE2_DIM2);
+
+ /* Open the file */
+ fid1 = H5Fopen(FILE2, H5F_ACC_RDWR, H5P_DEFAULT);
+
+ /* Open the dataset */
+ dset1=H5Dopen(fid1,"/Dataset1");
+
+ /* Read selection from disk */
+ ret=H5Dread(dset1,H5T_STD_REF_DSETREG,H5S_ALL,H5S_ALL,H5P_DEFAULT,rbuf);
+
+ /* Try to open objects */
+ dset2 = H5Rdereference(dset1,H5R_DATASET_REGION,&rbuf[0]);
+
+ /* Check information in referenced dataset */
+ sid1 = H5Dget_space(dset2);
+
+ ret=H5Sget_simple_extent_npoints(sid1);
+ printf(" Number of elements in the dataset is : %d\n",ret);
+
+ /* Read from disk */
+ ret=H5Dread(dset2,H5T_NATIVE_INT,H5S_ALL,H5S_ALL,H5P_DEFAULT,drbuf);
+
+ for(i=0; i<SPACE2_DIM1; i++) {
+ for (j=0; j<SPACE2_DIM2; j++) printf (" %d ", drbuf[i*SPACE2_DIM2+j]);
+ printf("\n"); }
+
+ /* Get the hyperslab selection */
+ sid2=H5Rget_region(dset1,H5R_DATASET_REGION,&rbuf[0]);
+
+ /* Verify correct hyperslab selected */
+ ret = H5Sget_select_npoints(sid2);
+ printf(" Number of elements in the hyperslab is : %d \n", ret);
+ ret = H5Sget_select_hyper_nblocks(sid2);
+ coords=malloc(ret*SPACE2_RANK*sizeof(hsize_t)*2); /* allocate space for the hyperslab blocks */
+ ret = H5Sget_select_hyper_blocklist(sid2,0,ret,coords);
+ printf(" Hyperslab coordinates are : \n");
+ printf (" ( %lu , %lu ) ( %lu , %lu ) \n", \
+(unsigned long)coords[0],(unsigned long)coords[1],(unsigned long)coords[2],(unsigned long)coords[3]);
+ free(coords);
+ ret = H5Sget_select_bounds(sid2,low,high);
+
+ /* Close region space */
+ ret = H5Sclose(sid2);
+
+ /* Get the element selection */
+ sid2=H5Rget_region(dset1,H5R_DATASET_REGION,&rbuf[1]);
+
+ /* Verify correct elements selected */
+ ret = H5Sget_select_elem_npoints(sid2);
+ printf(" Number of selected elements is : %d\n", ret);
+
+ /* Allocate space for the element points */
+ coords= malloc(ret*SPACE2_RANK*sizeof(hsize_t));
+ ret = H5Sget_select_elem_pointlist(sid2,0,ret,coords);
+ printf(" Coordinates of selected elements are : \n");
+ for (i=0; i<2*NPOINTS; i=i+2)
+ printf(" ( %lu , %lu ) \n", (unsigned long)coords[i],(unsigned long)coords[i+1]);
+
+ free(coords);
+ ret = H5Sget_select_bounds(sid2,low,high);
+
+ /* Close region space */
+ ret = H5Sclose(sid2);
+
+ /* Close first space */
+ ret = H5Sclose(sid1);
+
+ /* Close dereferenced Dataset */
+ ret = H5Dclose(dset2);
+
+ /* Close Dataset */
+ ret = H5Dclose(dset1);
+
+ /* Close file */
+ ret = H5Fclose(fid1);
+
+ /* Free memory buffers */
+ free(rbuf);
+ free(drbuf);
+ return 0;
+}
diff --git a/doc/html/Tutor/examples/h5_ref2regw.c b/doc/html/Tutor/examples/h5_ref2regw.c
new file mode 100644
index 0000000..5f27950
--- /dev/null
+++ b/doc/html/Tutor/examples/h5_ref2regw.c
@@ -0,0 +1,112 @@
+#include <stdlib.h>
+#include <hdf5.h>
+
+#define FILE2 "trefer2.h5"
+#define SPACE1_NAME "Space1"
+#define SPACE1_RANK 1
+#define SPACE1_DIM1 4
+
+/* Dataset with fixed dimensions */
+#define SPACE2_NAME "Space2"
+#define SPACE2_RANK 2
+#define SPACE2_DIM1 10
+#define SPACE2_DIM2 10
+
+/* Element selection information */
+#define POINT1_NPOINTS 10
+
+int
+main(void)
+{
+ hid_t fid1; /* HDF5 File IDs */
+ hid_t dset1, /* Dataset ID */
+ dset2; /* Dereferenced dataset ID */
+ hid_t sid1, /* Dataspace ID #1 */
+ sid2; /* Dataspace ID #2 */
+ hsize_t dims1[] = {SPACE1_DIM1},
+ dims2[] = {SPACE2_DIM1, SPACE2_DIM2};
+ hssize_t start[SPACE2_RANK]; /* Starting location of hyperslab */
+ hsize_t stride[SPACE2_RANK]; /* Stride of hyperslab */
+ hsize_t count[SPACE2_RANK]; /* Element count of hyperslab */
+ hsize_t block[SPACE2_RANK]; /* Block size of hyperslab */
+ hssize_t coord1[POINT1_NPOINTS][SPACE2_RANK];
+ /* Coordinates for point selection */
+ hdset_reg_ref_t *wbuf; /* buffer to write to disk */
+ int *dwbuf; /* Buffer for writing numeric data to disk */
+ int i; /* counting variables */
+ herr_t ret; /* Generic return value */
+
+
+ /* Allocate write & read buffers */
+ wbuf=calloc(sizeof(hdset_reg_ref_t), SPACE1_DIM1);
+ dwbuf=malloc(sizeof(int)*SPACE2_DIM1*SPACE2_DIM2);
+
+ /* Create file */
+ fid1 = H5Fcreate(FILE2, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+
+ /* Create dataspace for datasets */
+ sid2 = H5Screate_simple(SPACE2_RANK, dims2, NULL);
+
+ /* Create a dataset */
+ dset2=H5Dcreate(fid1,"Dataset2",H5T_STD_U8LE,sid2,H5P_DEFAULT);
+
+ for(i=0; i<SPACE2_DIM1*SPACE2_DIM2; i++)
+ dwbuf[i]=i*3;
+
+ /* Write selection to disk */
+ ret=H5Dwrite(dset2,H5T_NATIVE_INT,H5S_ALL,H5S_ALL,H5P_DEFAULT,dwbuf);
+
+ /* Close Dataset */
+ ret = H5Dclose(dset2);
+
+ /* Create dataspace for the reference dataset */
+ sid1 = H5Screate_simple(SPACE1_RANK, dims1, NULL);
+
+ /* Create a dataset */
+ dset1=H5Dcreate(fid1,"Dataset1",H5T_STD_REF_DSETREG,sid1,H5P_DEFAULT);
+
+ /* Create references */
+
+ /* Select 6x6 hyperslab for first reference */
+ start[0]=2; start[1]=2;
+ stride[0]=1; stride[1]=1;
+ count[0]=6; count[1]=6;
+ block[0]=1; block[1]=1;
+ ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
+
+ /* Store first dataset region */
+ ret = H5Rcreate(&wbuf[0],fid1,"/Dataset2",H5R_DATASET_REGION,sid2);
+
+ /* Select sequence of ten points for second reference */
+ coord1[0][0]=6; coord1[0][1]=9;
+ coord1[1][0]=2; coord1[1][1]=2;
+ coord1[2][0]=8; coord1[2][1]=4;
+ coord1[3][0]=1; coord1[3][1]=6;
+ coord1[4][0]=2; coord1[4][1]=8;
+ coord1[5][0]=3; coord1[5][1]=2;
+ coord1[6][0]=0; coord1[6][1]=4;
+ coord1[7][0]=9; coord1[7][1]=0;
+ coord1[8][0]=7; coord1[8][1]=1;
+ coord1[9][0]=3; coord1[9][1]=3;
+ ret = H5Sselect_elements(sid2,H5S_SELECT_SET,POINT1_NPOINTS,(const hssize_t **)coord1);
+
+ /* Store second dataset region */
+ ret = H5Rcreate(&wbuf[1],fid1,"/Dataset2",H5R_DATASET_REGION,sid2);
+
+ /* Write selection to disk */
+ ret=H5Dwrite(dset1,H5T_STD_REF_DSETREG,H5S_ALL,H5S_ALL,H5P_DEFAULT,wbuf);
+
+ /* Close all objects */
+ ret = H5Sclose(sid1);
+ ret = H5Dclose(dset1);
+ ret = H5Sclose(sid2);
+
+ /* Close file */
+ ret = H5Fclose(fid1);
+
+ free(wbuf);
+ free(dwbuf);
+ return 0;
+}
+
+
diff --git a/doc/html/Tutor/examples/h5_reference.c b/doc/html/Tutor/examples/h5_reference.c
new file mode 100644
index 0000000..a69afe2
--- /dev/null
+++ b/doc/html/Tutor/examples/h5_reference.c
@@ -0,0 +1,146 @@
+ /*
+ * This program illustrates how references to the objects can be used.
+ * Program creates two datasets in the file. It also creates the third
+ * dataset, and references to the first two datasets are stored in it.
+ * Program reopens the file and reads dataset with the references.
+ * References are used to open first two datasets and read datatspace
+ * and datatype information about them.
+ *
+ */
+
+#include<hdf5.h>
+
+#define FILE "refere.h5"
+
+int
+main(void) {
+ hid_t fid; /* File, datasets, datatypes and */
+ hid_t did_a, sid_a; /* dataspaces identifiers for three */
+ hid_t did_b, tid_b, sid_b; /* datasets. */
+ hid_t did_r, tid_r, sid_r;
+ herr_t status;
+
+ hobj_ref_t *wbuf; /* buffer to write to disk */
+ hobj_ref_t *rbuf; /* buffer to read from disk */
+
+
+ hsize_t dim_r[1];
+ hsize_t dim_a[1];
+ hsize_t dim_b[2];
+
+ herr_t ret; /* return values */
+
+ /*
+ * Create a file using default properties.
+ */
+ fid = H5Fcreate(FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+
+ /*
+ * Create dataset "A" in the file.
+ */
+ dim_a[0] = 5;
+ sid_a = H5Screate_simple(1, dim_a, NULL);
+ did_a = H5Dcreate(fid, "A", H5T_NATIVE_INT, sid_a, H5P_DEFAULT);
+
+ /*
+ * Create dataset "B" in the file.
+ */
+ dim_b[0] = 2;
+ dim_b[1] = 6;
+ sid_b = H5Screate_simple(2, dim_b, NULL);
+ did_b = H5Dcreate(fid, "B", H5T_NATIVE_FLOAT, sid_b, H5P_DEFAULT);
+
+ /*
+ * Create dataset "R" to store references to the datasets "A" and "B".
+ */
+ dim_r[0] = 2;
+ sid_r = H5Screate_simple(1, dim_r, NULL);
+ tid_r = H5Tcopy(H5T_STD_REF_OBJ);
+ did_r = H5Dcreate(fid, "R", tid_r, sid_r, H5P_DEFAULT );
+
+ /*
+ * Allocate write and read buffers.
+ */
+ wbuf = malloc(sizeof(hobj_ref_t)*2);
+ rbuf = malloc(sizeof(hobj_ref_t)*2);
+
+ /*
+ * Create references to the datasets "A" and "B"
+ * and store them in the wbuf.
+ */
+ H5Rcreate(&wbuf[0], fid, "A", H5R_OBJECT, -1);
+ H5Rcreate(&wbuf[1], fid, "B", H5R_OBJECT, -1);
+
+ /*
+ * Write dataset R using default transfer properties.
+ */
+ status = H5Dwrite(did_r, H5T_STD_REF_OBJ, H5S_ALL, H5S_ALL,
+ H5P_DEFAULT, wbuf);
+
+ /*
+ * Close all objects.
+ */
+ H5Sclose(sid_a);
+ H5Dclose(did_a);
+
+ H5Sclose(sid_b);
+ H5Dclose(did_b);
+
+ H5Tclose(tid_r);
+ H5Sclose(sid_r);
+ H5Dclose(did_r);
+
+ H5Fclose(fid);
+
+ /*
+ * Reopen the file.
+ */
+ fid = H5Fopen(FILE, H5F_ACC_RDWR, H5P_DEFAULT);
+
+ /*
+ * Open and read dataset "R".
+ */
+ did_r = H5Dopen(fid, "R");
+ status = H5Dread(did_r, H5T_STD_REF_OBJ, H5S_ALL, H5S_ALL,
+ H5P_DEFAULT, rbuf);
+
+ /*
+ * Open dataset A using reference to it.
+ */
+ did_a = H5Rdereference(did_r, H5R_OBJECT, &rbuf[0]);
+
+ /*
+ * Get rank of the dataset "A"
+ */
+
+ printf("\n");
+ sid_a = H5Dget_space(did_a);
+ ret = H5Sget_simple_extent_ndims(sid_a);
+
+ if(ret == 1) printf("Rank of A is %d.\n", ret);
+ printf("\n");
+
+ /*
+ * Get datatype of the dataset "B"
+ */
+ did_b = H5Rdereference(did_r, H5R_OBJECT, &rbuf[1]);
+ tid_b = H5Dget_type(did_b);
+ if(H5Tequal(tid_b, H5T_NATIVE_FLOAT))
+ printf("Datatype of B is H5T_NATIVE_FLOAT.\n");
+ printf("\n");
+
+ /*
+ * Close all objects.
+ */
+ H5Dclose(did_a);
+ H5Sclose(sid_a);
+ H5Dclose(did_b);
+ H5Tclose(tid_b);
+ H5Fclose(fid);
+
+ return 0;
+
+ }
+
+
+
diff --git a/doc/html/Tutor/extend.html b/doc/html/Tutor/extend.html
new file mode 100644
index 0000000..03b5972
--- /dev/null
+++ b/doc/html/Tutor/extend.html
@@ -0,0 +1,314 @@
+<HTML><HEAD>
+<TITLE>HDF5 Tutorial - Chunking and Extendible Datasets
+</TITLE>
+</HEAD>
+
+<body bgcolor="#ffffff">
+
+<!-- BEGIN MAIN BODY -->
+
+<A HREF="http://www.ncsa.uiuc.edu/"><img border=0
+src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+width=78 height=27 alt="NCSA"><P></A>
+
+ [ <A HREF="title.html"><I>HDF5 Tutorial Top</I></A> ]
+<H1>
+<BIG><BIG><BIG><FONT COLOR="#c101cd">Chunking and Extendible Datasets</FONT>
+</BIG></BIG></BIG></H1>
+
+<hr noshade size=1>
+
+<BODY>
+<H2>Contents:</H2>
+<UL>
+ <LI><A HREF="#def">Creating an Extendible Dataset</A>
+ <LI>Programming Example
+<UL>
+ <LI> <A HREF="#desc">Description</A>
+ <LI> <A HREF="#rem">Remarks</A>
+<!--
+ <LI> <A HREF="#fc">File Contents</A>
+ <LI> <A HREF="#ddl">Dataset Definition in DDL</A>
+-->
+</UL>
+</UL>
+<HR>
+<A NAME="def">
+<H2>Creating an Extendible Dataset</H2>
+An extendible dataset is one whose dimensions can grow. In HDF5, it is possible to define a dataset to have certain initial dimensions, then later
+to increase the size of any of the initial dimensions.
+<P>
+HDF5 requires you to use chunking in order to define extendible datasets. Chunking makes it possible to extend datasets efficiently, without
+having to reorganize storage excessively.
+<P>
+The following operations are required in order to write an extendible dataset:
+<OL>
+ <LI>Declare the dataspace of the dataset to have unlimited dimensions for all dimensions that might eventually be extended.
+ <LI>Set dataset creation properties to enable chunking and create a dataset.
+ <LI>Extend the size of the dataset.
+</OL>
+<H2> Programming Example</H2>
+<A NAME="desc">
+<H3><U>Description</U></H3>
+This example shows how to create a 3 x 3 extendible dataset, write to that
+dataset, extend the dataset to 10x3, and write to the dataset again.
+[<A HREF="examples/h5_extend.c">Download h5_extend.c</A>]
+<PRE>
+
+/**************************************************************
+ *
+ * This example shows how to work with extendible datasets.
+ * In the current version of the library a dataset MUST be
+ * chunked in order to be extendible.
+ *
+ * This example is derived from the h5_extend_write.c and
+ * h5_read_chunk.c examples that are in the "Introduction
+ * to HDF5".
+ *
+ *************************************************************/
+
+#include "hdf5.h"
+
+#define FILE "ext.h5"
+#define DATASETNAME "ExtendibleArray"
+#define RANK 2
+
+int
+main (void)
+{
+ hid_t file; /* handles */
+ hid_t dataspace, dataset;
+ hid_t filespace;
+ hid_t cparms;
+ hid_t memspace;
+
+ hsize_t dims[2] = { 3, 3}; /* dataset dimensions
+ at creation time */
+ hsize_t dims1[2] = { 3, 3}; /* data1 dimensions */
+ hsize_t dims2[2] = { 7, 1}; /* data2 dimensions */
+
+ hsize_t maxdims[2] = {H5S_UNLIMITED, H5S_UNLIMITED};
+ hsize_t size[2];
+ hssize_t offset[2];
+ hsize_t i,j;
+ herr_t status, status_n;
+ int data1[3][3] = { {1, 1, 1}, /* data to write */
+ {1, 1, 1},
+ {1, 1, 1} };
+
+ int data2[7] = { 2, 2, 2, 2, 2, 2, 2};
+
+ /* Variables used in reading data back */
+ hsize_t chunk_dims[2] ={2, 5};
+ hsize_t chunk_dimsr[2];
+ hsize_t dimsr[2];
+ int data_out[10][3];
+ int rank, rank_chunk;
+
+ /* Create the data space with unlimited dimensions. */
+ dataspace = H5Screate_simple (RANK, dims, maxdims);
+
+ /* Create a new file. If file exists its contents will be overwritten. */
+ file = H5Fcreate (FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+
+ /* Modify dataset creation properties, i.e. enable chunking */
+ cparms = H5Pcreate (H5P_DATASET_CREATE);
+ status = H5Pset_chunk ( cparms, RANK, chunk_dims);
+
+ /* Create a new dataset within the file using cparms
+ creation properties. */
+ dataset = H5Dcreate (file, DATASETNAME, H5T_NATIVE_INT, dataspace,
+ cparms);
+
+ /* Extend the dataset. This call assures that dataset is 3 x 3.*/
+ size[0] = 3;
+ size[1] = 3;
+ status = H5Dextend (dataset, size);
+
+ /* Select a hyperslab */
+ filespace = H5Dget_space (dataset);
+ offset[0] = 0;
+ offset[1] = 0;
+ status = H5Sselect_hyperslab (filespace, H5S_SELECT_SET, offset, NULL,
+ dims1, NULL);
+
+ /* Write the data to the hyperslab */
+ status = H5Dwrite (dataset, H5T_NATIVE_INT, dataspace, filespace,
+ H5P_DEFAULT, data1);
+
+ /* Extend the dataset. Dataset becomes 10 x 3 */
+ dims[0] = dims1[0] + dims2[0];
+ size[0] = dims[0];
+ size[1] = dims[1];
+ status = H5Dextend (dataset, size);
+
+ /* Select a hyperslab */
+ filespace = H5Dget_space (dataset);
+ offset[0] = 3;
+ offset[1] = 0;
+ status = H5Sselect_hyperslab (filespace, H5S_SELECT_SET, offset, NULL,
+ dims2, NULL);
+
+ /* Define memory space */
+ dataspace = H5Screate_simple (RANK, dims2, NULL);
+
+ /* Write the data to the hyperslab */
+ status = H5Dwrite (dataset, H5T_NATIVE_INT, dataspace, filespace,
+ H5P_DEFAULT, data2);
+
+ /* Close resources */
+ status = H5Dclose (dataset);
+ status = H5Sclose (dataspace);
+ status = H5Sclose (filespace);
+ status = H5Fclose (file);
+
+/****************************************************************
+ Read the data back
+ ***************************************************************/
+
+ file = H5Fopen (FILE, H5F_ACC_RDONLY, H5P_DEFAULT);
+ dataset = H5Dopen (file, DATASETNAME);
+ filespace = H5Dget_space (dataset);
+ rank = H5Sget_simple_extent_ndims (filespace);
+ status_n = H5Sget_simple_extent_dims (filespace, dimsr, NULL);
+
+ cparms = H5Dget_create_plist (dataset);
+ if (H5D_CHUNKED == H5Pget_layout (cparms))
+ {
+ rank_chunk = H5Pget_chunk (cparms, 2, chunk_dimsr);
+ }
+
+ memspace = H5Screate_simple (rank,dimsr,NULL);
+ status = H5Dread (dataset, H5T_NATIVE_INT, memspace, filespace,
+ H5P_DEFAULT, data_out);
+ printf("\n");
+ printf("Dataset: \n");
+ for (j = 0; j &lt; dimsr[0]; j++)
+ {
+ for (i = 0; i &lt; dimsr[1]; i++)
+ printf("%d ", data_out[j][i]);
+ printf("\n");
+ }
+
+ status = H5Pclose (cparms);
+ status = H5Dclose (dataset);
+ status = H5Sclose (filespace);
+ status = H5Sclose (memspace);
+ status = H5Fclose (file);
+}
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+</PRE>
+
+<A NAME="rem">
+<H3><U>Remarks</U></H3>
+<P>
+<UL>
+<LI>The function H5Pcreate creates a new property as an instance of
+ a property list. The signature of this function is as follows:
+<PRE>
+ hid_t H5Pcreate ( H5P_class_t type )
+</PRE>
+<UL>
+<LI>The parameter <I>type</I> is the type of property list to create.<BR>
+ The class types are: H5P_FILE_CREATE, H5P_FILE_ACCESS, H5P_DATASET_CREATE,
+ H5P_DATASET_XFER, and H5P_MOUNT
+</UL>
+<P>
+<LI>The function H5Pset_chunk sets the size of the chunks used
+ to store a chunked layout dataset.
+ The signature of this function is as follows:
+<PRE>
+ herr_t H5Pset_chunk ( hid_t plist, int ndims, const hsize_t * dim )
+</PRE>
+<UL>
+<LI>The first parameter, <I>plist</I>, is the identifier for the property
+ list to query.
+<LI>The second parameter, <I>ndims</I>, is the number of dimensions of
+ each chunk.
+<LI>The third parameter, <I>dim</I>, is an array containing the size of
+ each chunk.
+</UL>
+<P>
+A non-negative value is returned if successful; otherwise a negative
+value is returned.
+<P>
+<LI>The function H5Dextend extends a dataset that has an unlimited
+ dimension. The signature is as follows:
+<PRE>
+ herr_t H5Dextend ( hid_t dataset_id, const hsize_t * size )
+</PRE>
+<UL>
+<LI>The first parameter, <I>dataset_id</I>, is the identifier of
+ the dataset.
+<LI>The second parater, <I>size</I>, is an array containing the
+ new magnitude of each dimension.
+</UL>
+<P>
+This function returns a non-negative value if successful; otherwise
+it returns a negative value.
+<P>
+<LI>The H5Dget_create_plist function returns an identifier for a
+copy of the dataset creation property list for a dataset.
+<P>
+<LI>The H5Pget_layout function returns the layout of the raw data for a
+dataset. Valid types are H5D_COMPACT, H5D_CONTIGUOUS, and H5D_CHUNKED.
+<P>
+<LI>The H5Pget_chunk function retrieves the size of chunks for the
+raw data of a chunked layout dataset.
+The signature of this function is:
+<PRE>
+ int H5Pget_chunk ( hid_t plist, int max_ndims, hsize_t * dims )
+</PRE>
+<UL>
+<LI>The first parameter, <I>plist</I>, is the identifier of the
+ property list to query.
+<LI>The second parameter, <I>max_ndims</I>, is the size of the <I>dims</I>
+ array.
+<LI>The third parameter, <I>dims</I>, is the array to store the chunk
+ dimensions
+</UL>
+<P>
+<LI>The H5Pclose function terminates access to a property list.
+ The signature of this function is:
+<PRE>
+ herr_t H5Pclose ( hid_t plist )
+</PRE>
+where <I>plist</I> is the identifier of the property list to terminate
+access to.
+</UL>
+
+
+<!--
+<A NAME="fc">
+<H3><U>File Contents</U></H3>
+-->
+
+
+
+
+
+<!-- BEGIN FOOTER INFO -->
+
+<P><hr noshade size=1>
+<font face="arial,helvetica" size="-1">
+ <a href="http://www.ncsa.uiuc.edu/"><img border=0
+ src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+ width=78 height=27 alt="NCSA"><br>
+ The National Center for Supercomputing Applications</A><br>
+ <a href="http://www.uiuc.edu/">University of Illinois
+ at Urbana-Champaign</a><br>
+ <br>
+<!-- <A HREF="helpdesk.mail.html"> -->
+<A HREF="mailto:hdfhelp@ncsa.uiuc.edu">
+hdfhelp@ncsa.uiuc.edu</A>
+<BR> <H6>Last Modified: August 27, 1999</H6><BR>
+<!-- modified by Barbara Jones - bljones@ncsa.uiuc.edu -->
+</FONT>
+<BR>
+<!-- <A HREF="mailto:hdfhelp@ncsa.uiuc.edu"> -->
+
+</BODY>
+</HTML>
+
+
+
diff --git a/doc/html/Tutor/fileorg.html b/doc/html/Tutor/fileorg.html
new file mode 100644
index 0000000..03c2c29
--- /dev/null
+++ b/doc/html/Tutor/fileorg.html
@@ -0,0 +1,103 @@
+<HTML><HEAD>
+<TITLE>HDF5 File Organization
+</TITLE>
+</HEAD>
+
+<body bgcolor="#ffffff">
+
+<!-- BEGIN MAIN BODY -->
+
+<A HREF="http://www.ncsa.uiuc.edu/"><img border=0
+src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+width=78 height=27 alt="NCSA"><P></A>
+
+ [ <A HREF="title.html"><I>HDF5 Tutorial Top</I></A> ]
+<H1>
+<BIG><BIG><BIG><FONT COLOR="#c101cd">HDF5 File Organization</FONT>
+</BIG></BIG></BIG></H1>
+
+
+<hr noshade size=1>
+
+<BODY>
+<P>
+An HDF5 file is a container for storing a variety of scientific data, and the
+two primary HDF5 objects are groups and datasets.
+<UL>
+ <LI><B>HDF5 group:</B> a grouping structure containing zero or more HDF5
+ objects, together with supporting metadata.
+
+ <LI><B>HDF5 dataset:</B> a multidimensional array of data elements, together
+ with supporting metadata.
+</UL>
+Any HDF5 group or dataset may have an associated attribute list. An HDF5
+attribute is a user-defined HDF5 structure that provides extra information
+about an HDF5 object.
+<P>
+Working with groups and group members (datasets for example) is similar in many
+ways to working with directories and files in UNIX. As with UNIX directories
+and files, objects in an HDF5 file are often described by giving their full (or
+absolute) path names.
+<UL>
+ <CODE>/</CODE> signifies the root group.<BR>
+ <CODE>/foo</CODE> signifies a member of the root group called <I>foo</I>.
+<BR>
+ <CODE>/foo/zoo</CODE> signifies a member of the group <I>foo</I>, which in
+ turn is a member of the root group.
+</UL>
+<P>
+<!--
+In this tutorial, we consider:
+<UL>
+<LI>how to create a file
+<LI>how to create a group
+<LI>how to create/read/write datasets
+<LI>how to create an attribute
+<LI>how to create a grouping structure
+<LI>how to create datasets in groups
+</UL>
+The rest of the tutorial is organized as follows:
+<UL>
+ <LI> Section 3 describes the HDF5 APIs.
+ <LI> Section 4 shows how to create an HDF5 file.
+ <LI> Section 5 shows how to create a dataset.
+ <LI> Section 6 shows how to read from and write to a dataset.
+ <LI> Section 7 shows how to create an attribute.
+ <LI> Section 8 shows how to create a group.
+ <LI> Section 9 discusses HDF5 names and shows how to create groups using absolute and relative names.
+ <LI> Section 10 shows how to create datasets in groups.
+</UL>
+
+Each section contains step by step instructions and an example. After the
+example, an HDF5 tool is used to examine the file contents. A formal definition
+of HDF5 objects in Backus-Naur Form is given last.
+
+The tutorial ends with a glossary and references.
+-->
+<P>
+
+<!-- BEGIN FOOTER INFO -->
+
+<P><hr noshade size=1>
+<font face="arial,helvetica" size="-1">
+ <a href="http://www.ncsa.uiuc.edu/"><img border=0
+ src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+ width=78 height=27 alt="NCSA"><br>
+ The National Center for Supercomputing Applications</A><br>
+ <a href="http://www.uiuc.edu/">University of Illinois
+ at Urbana-Champaign</a><br>
+ <br>
+<!-- <A HREF="helpdesk.mail.html"> -->
+<A HREF="mailto:hdfhelp@ncsa.uiuc.edu">
+hdfhelp@ncsa.uiuc.edu</A>
+<BR> <H6>Last Modified: July 30, 1999</H6><BR>
+<!-- modified by Barbara Jones - bljones@ncsa.uiuc.edu -->
+</FONT>
+<BR>
+<!-- <A HREF="mailto:hdfhelp@ncsa.uiuc.edu"> -->
+
+</BODY>
+</HTML>
+
+
+
diff --git a/doc/html/Tutor/glossary.html b/doc/html/Tutor/glossary.html
new file mode 100644
index 0000000..84a938d
--- /dev/null
+++ b/doc/html/Tutor/glossary.html
@@ -0,0 +1,234 @@
+<HTML><HEAD>
+<TITLE>HDF5 Tutorial - Glossary
+</TITLE>
+</HEAD>
+
+<body bgcolor="#ffffff">
+
+<!-- BEGIN MAIN BODY -->
+
+<A HREF="http://www.ncsa.uiuc.edu/"><img border=0
+src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+width=78 height=27 alt="NCSA"><P></A>
+
+ [ <A HREF="title.html"><I>HDF5 Tutorial Top</I></A> ]
+<H1>
+<BIG><BIG><BIG><FONT COLOR="#c101cd">Glossary</FONT>
+</BIG></BIG></BIG></H1>
+
+<hr noshade size=1>
+
+<BODY>
+<DL>
+<DT><B>ATTRIBUTE</B>
+<DD>An HDF5 attribute is a small dataset that can be used to describe
+ the nature and/or the intended usage of the object it is attached
+ to.
+
+<P>
+<DT><B>BOOT BLOCK</B>
+<DD>HDF5 files are composed of a "boot block" describing information required to portably access files on multiple platforms, followed by information
+about the groups in a file and the datasets in the file. The boot block contains information about the size of offsets and lengths of objects, the
+number of entries in symbol tables (used to store groups) and additional version information for the file.
+<P>
+<DT><B>DATASET</B>
+<DD>An HDF5 dataset is a multi-dimensional array of data elements,
+ together with supporting metadata.
+
+<P>
+<DT><B>DATASPACE</B>
+<DD>An HDF5 dataspace is an object that describes the dimensionality
+ of the data array. A dataspace is either a regular N-dimensional
+ array of data points, called a simple dataspace, or a more
+ general collection of data points organized in another
+ manner, called a complex dataspace.
+
+<P>
+<DT><B>DATA TYPE</B>
+<DD>An HDF5 Data Type is an object that describes the type of the
+ element in an HDF5 multi-dimensional array. There are two
+ categories of datatypes: atomic and compound data types. An
+ atomic type is a type which cannot be decomposed into smaller
+ units at the API level. A compound is a collection of one or
+ more atomic types or small arrays of such types.
+
+<P>
+<DT><B>DATASET CREATION PROPERTY LIST</B>
+<DD> The Dataset Creation Property List contains information on how
+ raw data is organized on disk and how the raw data is compressed.
+ The dataset API partitions these terms by layout, compression,
+ and external storage:
+<UL>
+<B> Layout:</B>
+<UL>
+<LI> H5D_COMPACT: Data is small and can be stored in object header (not
+ implemented yet). This eliminates disk seek/read requests.
+<LI> H5D_CONTIGUOUS: (<B>default</B>) The data is large, non-extendible,
+ non-compressible, non-sparse, and can be stored
+ externally.
+<LI> H5D_CHUNKED: The data is large and can be extended in any dimension.
+ It is partitioned into chunks so each chunk is the same
+ logical size.
+</UL>
+<B>Compression:</B> (gzip compression)<BR>
+<B>External Storage Properties:</B> The data must be contiguous to be stored
+ externally. It allows you to store the data
+ in one or more non-HDF5 files.
+
+</UL>
+
+<P>
+<DT><B>DATA TRANSFER PROPERTY LIST</B>
+<DD> The data transfer property list is used to control various aspects
+ of the I/O, such as caching hints or collective I/O information.
+<P>
+<DT><B>DDL</B>
+<DD>DDL is a Data Description Language that describes HDF5 objects
+ in Backus-Naur Form.
+
+<P>
+
+<DT><B>FILE ACCESS MODES</B>
+<DD>The file access modes determine whether an existing file will be
+overwritten. All newly created files are opened for both reading and
+writing. Possible values are:
+<PRE>
+ H5F_ACC_RDWR: Allow read and write access to file.
+ H5F_ACC_RDONLY: Allow read-only access to file.
+ H5F_ACC_TRUNC: Truncate file, if it already exists, erasing all data
+ previously stored in the file.
+ H5F_ACC_EXCL: Fail if file already exists.
+ H5F_ACC_DEBUG: Print debug information.
+ H5P_DEFAULT: Apply default file access and creation properties.
+</PRE>
+<P>
+<DT><B>FILE ACCESS PROPERTY LIST</B>
+ <DD> File access property lists are used to control different methods
+ of performing I/O on files:
+<UL>
+<B>Unbuffered I/O:</B> Local permanent files can be accessed with the functions
+ described in Section 2 of the Posix manual, namely open(), lseek(), read(),
+ write(), and close(). <BR>
+<B>Buffered I/O:</B> Local permanent files can be accessed with the functions
+ declared in the stdio.h header file, namely fopen(), fseek(), fread(),
+ fwrite(), and fclose().<BR>
+<B>Memory I/O:</B> Local temporary files can be created and accessed directly from
+ memory without ever creating permanent storage. The library uses malloc()
+ and free() to create storage space for the file<BR>
+<B>Parallel Files using MPI I/O:</B> This driver allows parallel access to a file
+ through the MPI I/O library. The parameters which can be modified are the
+ MPI communicator, the info object, and the access mode. The communicator
+ and info object are saved and then passed to MPI_File_open() during file
+ creation or open. The access_mode controls the kind of parallel access the
+ application intends.<BR>
+<B>Data Alignment:</B> Sometimes file access is faster if certain things are aligned
+ on file blocks. This can be controlled by setting alignment properties of
+ a file access property list with the H5Pset_alignment() function.
+</UL>
+<P>
+<DT><B>FILE CREATION PROPERTY LIST</B>
+<DD> The file creation property list is used to control the file
+ metadata. The parameters that can be modified are:
+<UL>
+ <B>User-Block Size:</B> The "user-block" is a fixed length block of data located
+ at the beginning of the file which is ignored by the HDF5 library and may
+ be used to store any data information found to be useful to applications.
+<BR>
+<B> Offset and Length Sizes:</B> The number of bytes used to store the offset and
+ length of objects in the HDF5 file can be controlled with this parameter.
+ Symbol Table Parameters: The size of symbol table B-trees can be controlled
+ by setting the 1/2 rank and 1/2 node size parameters of the B-tree.
+<BR>
+<B> Indexed Storage Parameters:</B> The size of indexed storage B-trees can be
+ controlled by setting the 1/2 rank and 1/2 node size parameters of the
+ B-tree.
+</UL>
+<P>
+
+<DT><B>GROUP</B>
+<DD>A Group is a structure containing zero or more HDF5 objects,
+ together with supporting metadata. The two primary HDF5 objects
+ are datasets and groups.
+<P>
+
+<DT><B>HDF5</B>
+<DD>HDF5 is an abbreviation for Hierarchical Data Format Version 5.
+ This file format is intended to make it easy to write and read
+ scientific data
+<P>
+<UL>
+ <LI> by including the information needed to understand the data
+ within the file
+<P>
+ <LI> by providing a library of C, FORTRAN, and other language
+ programs that reduce the work required to provide efficient
+ writing and reading - even with parallel IO
+</UL>
+<P>
+
+<DT><B>HDF5 FILE</B>
+<DD>An HDF5 file is a container for storing grouped collections
+ of multi-dimensional arrays containing scientific data.
+<P>
+
+<DT><B>H5DUMP</B>
+<DD>h5dump is an HDF5 tool that describes the HDF5 file contents in DDL.
+<P>
+
+<DT><B>HYPERSLAB</B>
+<DD>
+A hyperslab is a portion of a dataset. A hyperslab selection can be a
+logically contiguous collection of points in a dataspace, or it
+can be a regular pattern of points or blocks in a dataspace.
+<P>
+<DT><B>NAMES</B>
+<DD>HDF5 object names are a slash-separated list of components. A name
+ which begins with a slash is an absolute name which is accessed
+ beginning with the root group of the file while all other relative
+ names are accessed beginning with the specified group.
+<P>
+<DT><B>PARALLEL I/O (HDF5)</B>
+<DD>The parallel I/O version of HDF5 supports parallel file access using
+MPI (Message Passing Interface).
+<P>
+
+<DT><B>THREADSAFE (HDF5)</B>
+<DD>A "thread-safe" version of HDF-5 (TSHDF5) is one that can be called from any thread of a multi-threaded program. Any calls to HDF
+can be made in any order, and each individual HDF call will perform correctly. A calling program does not have to explicitly lock the HDF
+library in order to do I/O. Applications programmers may assume that the TSHDF5 guarantees the following:
+<UL>
+ <LI> the HDF-5 library does not create or destroy threads.
+ <LI> the HDF-5 library uses modest amounts of per-thread private memory.
+ <LI> the HDF-5 library only locks/unlocks it's own locks (no locks are passed in or returned from HDF), and the internal locking is guaranteed to be deadlock free.
+</UL>
+<P>
+These properties mean that the TSHDF5 library will not interfere with an application's use of threads. A TSHDF5 library is the same
+library as regular HDF-5 library, with additional code to synchronize access to the HDF-5 library's internal data structures.
+
+</DL>
+
+<!-- BEGIN FOOTER INFO -->
+
+<P><hr noshade size=1>
+<font face="arial,helvetica" size="-1">
+ <a href="http://www.ncsa.uiuc.edu/"><img border=0
+ src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+ width=78 height=27 alt="NCSA"><br>
+ The National Center for Supercomputing Applications</A><br>
+ <a href="http://www.uiuc.edu/">University of Illinois
+ at Urbana-Champaign</a><br>
+ <br>
+<!-- <A HREF="helpdesk.mail.html"> -->
+<A HREF="mailto:hdfhelp@ncsa.uiuc.edu">
+hdfhelp@ncsa.uiuc.edu</A>
+<BR> <H6>Last Modified: September 1, 1999</H6><BR>
+<!-- modified by Barbara Jones - bljones@ncsa.uiuc.edu -->
+</FONT>
+<BR>
+<!-- <A HREF="mailto:hdfhelp@ncsa.uiuc.edu"> -->
+
+</BODY>
+</HTML>
+
+
+
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+<html>
+<head>
+<title>HDF5 Tutorial</title>
+</head>
+
+
+<frameset cols="110,*" border=0>
+ <frame src="Contents.html" scrolling="auto" name="BUTTONS">
+ <frame src="title.html" scrolling="auto" name="CONTENT">
+</frameset>
+
+<noframes>
+ <b>HDF5 Tutorial</b>
+ <p>
+ If you are reading this message, your browser is not capable of
+ interpreting HTML frames. A no-frames version of the tutorial
+ is available by viewing the file <a href="title.html">title.html</a>.
+ <p>
+ If you owuld like to upgrade to a frames-capable browser,
+ we suggest upgrading to the most recent version of
+ Nestscape Communicator, Microsoft Internet Explorer, or
+ an equivalent browser.
+ <p>
+ In the meantime, you can view this tutorial by starting with the
+ file <a href="title.html">title.html</a>.
+</noframes>
+
+
+</html>
diff --git a/doc/html/Tutor/intro.html b/doc/html/Tutor/intro.html
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+++ b/doc/html/Tutor/intro.html
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+<HTML><HEAD>
+<TITLE>HDF5 Tutorial - Introduction
+</TITLE>
+</HEAD>
+
+<body bgcolor="#ffffff">
+
+<!-- BEGIN MAIN BODY -->
+
+<A HREF="http://www.ncsa.uiuc.edu/"><img border=0
+src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+width=78 height=27 alt="NCSA"><P></A>
+
+ [ <A HREF="title.html"><I>HDF5 Tutorial Top</I></A> ]
+<h1>
+<BIG><BIG><BIG><FONT COLOR="#c101cd">Introduction</FONT>
+</BIG></BIG></BIG></H1>
+
+<hr noshade size=1>
+
+<BODY>
+Welcome to the HDF5 Tutorial provided by the HDF User Support Group.
+<P>
+HDF5 is a file format and library for storing scientific data.
+HDF5 was designed and implemented to address the deficiencies of HDF4.x.
+It has a more powerful and flexible data model, supports files larger than 2 GB,
+supports parallel I/O, and is thread-safe. For a short overview presentation
+of the HDF5 data model, library and tools see:
+<PRE>
+ <A HREF="http://hdf.ncsa.uiuc.edu/HDF5/HDF5_overview/index.htm">http://hdf.ncsa.uiuc.edu/HDF5/HDF5_overview/index.htm</A>
+</PRE>
+This tutorial covers the basic HDF5 data objects and file structure,
+the HDF5 programming model and the API functions necessary for creating and
+modifying data objects. It also introduces the available HDF5 tools to access
+HDF5 files.
+<P>
+The examples used in this tutorial, along with a Makefile to compile them
+can be found in <A HREF="./examples/">./examples/</A>. You can also download
+a <A HREF="http://hdf.ncsa.uiuc.edu/training/other-ex5/examples.tar">tar
+file</A> with the examples and Makefile. In
+order to use the Makefile you may have to edit it and update the
+compiler and compiler options, as well as the path for the HDF5
+binary distribution.
+<P>
+Please check the <A HREF="references.html">References</A> for where to find
+other examples of HDF5 Programs.
+<P>
+We hope that the step-by-step examples and instructions will give you a quick
+start with HDF5.
+<P>
+Please send your comments and suggestions to hdfhelp@ncsa.uiuc.edu.
+
+
+</BODY>
+
+
+<!-- BEGIN FOOTER INFO -->
+
+<P><hr noshade size=1>
+<font face="arial,helvetica" size="-1">
+ <a href="http://www.ncsa.uiuc.edu/"><img border=0
+ src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+ width=78 height=27 alt="NCSA"><br>
+ The National Center for Supercomputing Applications</A><br>
+ <a href="http://www.uiuc.edu/">University of Illinois
+ at Urbana-Champaign</a><br>
+ <br>
+<!-- <A HREF="helpdesk.mail.html"> -->
+<A HREF="mailto:hdfhelp@ncsa.uiuc.edu">
+hdfhelp@ncsa.uiuc.edu</A>
+<BR> <H6>Last Modified: October 8, 1999</H6><BR>
+<!-- modified by Barbara Jones - bljones@ncsa.uiuc.edu -->
+</FONT>
+<BR>
+<!-- <A HREF="mailto:hdfhelp@ncsa.uiuc.edu"> -->
+
+</BODY>
+</HTML>
+
+
+
diff --git a/doc/html/Tutor/iterate.html b/doc/html/Tutor/iterate.html
new file mode 100644
index 0000000..4cb0475
--- /dev/null
+++ b/doc/html/Tutor/iterate.html
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+<HTML><HEAD>
+<TITLE>HDF5 Tutorial - Iterating over Group Members
+</TITLE>
+</HEAD>
+
+<body bgcolor="#ffffff">
+
+<!-- BEGIN MAIN BODY -->
+
+<A HREF="http://www.ncsa.uiuc.edu/"><img border=0
+src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+width=78 height=27 alt="NCSA"><P></A>
+
+ [ <A HREF="title.html"><I>HDF5 Tutorial Top</I></A> ]
+<H1>
+<BIG><BIG><BIG><FONT COLOR="#c101cd">Iterating over Group Members</FONT>
+</BIG></BIG></BIG></H1>
+
+<hr noshade size=1>
+
+<BODY>
+<H2>Contents:</H2>
+<UL>
+ <LI><A HREF="#def">How to Iterate Over Group Members</A>
+ <LI>Programming Example
+<UL>
+ <LI> <A HREF="#desc">Description</A>
+ <LI> <A HREF="#rem">Remarks</A>
+<!--
+ <LI> <A HREF="#fc">File Contents</A>
+ <LI> <A HREF="#ddl">Dataset Definition in DDL</A>
+-->
+</UL>
+</UL>
+<HR>
+<A NAME="def">
+<H2>How to Iterate Over Group Members</H2>
+This section discusses how to find names and object types of HDF5 group
+members.
+<P>
+The HDF5 Group interface has a function, H5Giterate, to iterate over the
+group members.
+<P>
+Operations on each group member can be performed during the iteration process.
+The operator function and its data are passed to the iterator as parameters.
+There are no restrictions on what kind of operations can be performed on
+group members during the iteration procedure.
+<P>
+The following steps are involved:
+<OL>
+
+<LI> Write an operator function which will be used during the iteration process.
+ The HDF5 library defines the operator function signature and return values.
+<LI> Open the group to iterate through.
+<LI> Use H5Giterate to iterate through the group or just a few members of
+ the group.
+</OL>
+<H2> Programming Example</H2>
+<A NAME="desc">
+<H3><U>Description</U></H3>
+In this example we iterate through the members of the root group. The
+operator function displays the members' names and their object types.
+The object type can be a group, dataset, or named datatype.
+[ <A HREF="examples/h5_iterate.c">Download h5_iterate.c</A> ]
+<PRE>
+
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+#include &lt;hdf5.h&gt;
+
+#define FILE "iterate.h5"
+#define FALSE 0
+
+/* 1-D dataset with fixed dimensions */
+#define SPACE1_NAME "Space1"
+#define SPACE1_RANK 1
+#define SPACE1_DIM1 4
+
+herr_t file_info(hid_t loc_id, const char *name, void *opdata);
+ /* Operator function */
+int
+main(void) {
+ hid_t file; /* HDF5 File IDs */
+ hid_t dataset; /* Dataset ID */
+ hid_t group; /* Group ID */
+ hid_t sid; /* Dataspace ID */
+ hid_t tid; /* Datatype ID */
+ hsize_t dims[] = {SPACE1_DIM1};
+ herr_t ret; /* Generic return value */
+
+/* Compound datatype */
+typedef struct s1_t {
+ unsigned int a;
+ unsigned int b;
+ float c;
+} s1_t;
+
+ /* Create file */
+ file = H5Fcreate(FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+
+ /* Create dataspace for datasets */
+ sid = H5Screate_simple(SPACE1_RANK, dims, NULL);
+
+ /* Create a group */
+ group=H5Gcreate(file,"Group1",-1);
+
+ /* Close a group */
+ ret = H5Gclose(group);
+
+ /* Create a dataset */
+ dataset=H5Dcreate(file,"Dataset1",H5T_STD_U32LE,sid,H5P_DEFAULT);
+
+ /* Close Dataset */
+ ret = H5Dclose(dataset);
+
+ /* Create a datatype */
+ tid = H5Tcreate (H5T_COMPOUND, sizeof(s1_t));
+
+ /* Insert fields */
+ ret=H5Tinsert (tid, "a", HOFFSET(s1_t,a), H5T_NATIVE_INT);
+
+ ret=H5Tinsert (tid, "b", HOFFSET(s1_t,b), H5T_NATIVE_INT);
+
+ ret=H5Tinsert (tid, "c", HOFFSET(s1_t,c), H5T_NATIVE_FLOAT);
+
+ /* Save datatype for later */
+ ret=H5Tcommit (file, "Datatype1", tid);
+
+ /* Close datatype */
+ ret = H5Tclose(tid);
+
+ /* Iterate through the file to see members of the root group */
+
+ printf(" Objects in the root group are:\n");
+ printf("\n");
+
+ H5Giterate(file, "/", NULL, file_info, NULL);
+
+ /* Close file */
+ ret = H5Fclose(file);
+
+ return 0;
+}
+
+/*
+ * Operator function.
+ */
+herr_t file_info(hid_t loc_id, const char *name, void *opdata)
+{
+ H5G_stat_t statbuf;
+
+ /*
+ * Get type of the object and display its name and type.
+ * The name of the object is passed to this function by
+ * the Library. Some magic :-)
+ */
+ H5Gget_objinfo(loc_id, name, FALSE, &statbuf);
+ switch (statbuf.type) {
+ case H5G_GROUP:
+ printf(" Object with name %s is a group \n", name);
+ break;
+ case H5G_DATASET:
+ printf(" Object with name %s is a dataset \n", name);
+ break;
+ case H5G_TYPE:
+ printf(" Object with name %s is a named datatype \n", name);
+ break;
+ default:
+ printf(" Unable to identify an object ");
+ }
+ return 0;
+ }
+
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+</PRE>
+The output of this program is:
+<PRE>
+ Objects in the root group are:
+
+ Object with name Dataset1 is a dataset
+ Object with name Datatype1 is a named datatype
+ Object with name Group1 is a group
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+</PRE>
+<A NAME="rem">
+<H3><U>Remarks</U></H3>
+<P>
+<UL>
+<LI> The operator function in this example is called <I>file_info</I>.
+ The signature of the operator function is as follows:
+<PRE>
+ herr_t *(H5G_operator_t) (hid_group_id, const char* name, void *operator_data)
+</PRE>
+<UL>
+ <LI>The first parameter is a group identifier for the group being iterated
+ over. It is passed to the operator by the iterator function, H5Giterate.
+ <LI> The second parameter is the name of the current object. The name is
+ passed to the operator function by the HDF5 library.
+ <LI> The third parameter is the operator data. It is passed to and from
+ the operator by the iterator, H5Giterate.
+
+ The operator function in this example just prints the name and type
+ of the current object and then exits.
+
+ This information can also be used to open the object and perform
+ different operations or queries. For example a named datatype object's
+ name can be used to open the datatype and query its properties.
+</UL>
+<P>
+ The operator return value defines the behavior of the iterator.
+ <UL>
+ <LI>A zero return value causes the iterator to continue, returning
+ zero when all group members have been processed.
+ <LI>A positive value causes the iterator to immediately return that
+ value, indicating a short-circuit success. The iterator can be restarted
+ at the next group member.
+ <LI>A negative value causes the iterator to immediately return that value,
+ indicating failure. The iterator can be restarted at the next group
+ member.
+ </UL>
+<P>
+ In this example the operator function returns 0, which causes the iterator
+ to continue and go through all group members.
+<P>
+<LI>The function H5Gget_objinfo is used to determine the type of the object.
+ It also returns the modification time, number of hard links, and some
+ other information.
+<P>
+ The signature of this function is as follows:
+<PRE>
+ herr_t H5Gget_objinfo(hid_t loc_id, const char * name, hbool_t follow_link,
+ H5G_stat_t *statbuf)
+</PRE>
+<UL>
+ <LI> The first two arguments specify the object by its location and name.
+ This example uses the group identifier and name relative to the group
+ to specify the object.
+ <LI> The third argument is a flag which indicates whether a
+ symbolic link should be followed or not. A zero value indicates
+ that information should be returned for the link itself, but not
+ about the object it points to.
+ The root group in this example does not have objects that are
+ links, so this flag is not important for our example.
+ <LI> The fourth argument is a buffer to return information in.
+ Type information is returned into the field "type" of the
+ H5G_stat_t data structure (statbuf.type). Possible values are:
+ H5G_GROUP, H5G_DATASET, H5G_TYPE, and H5G_LINK.
+</UL>
+<P>
+<LI> The H5Giterate function has the following signature:
+<PRE>
+ int H5Giterate(hid_t loc_id, const char *name , idx,
+ H5G_operator_t operator, void * operator_data)
+</PRE>
+<UL>
+ <LI> The first parameter is the group for the group being iterated over.
+ <LI> The second parameter is the group name.
+ <LI> The third parameter specifies that iteration begins with the
+ <I>idx</I> object in the group and the next element to be processed
+ is returned in the <I>idx</I> parameter. In our example NULL is
+ used to start at the first group member. Since no stopping point
+ is returned in this case, the iterator cannot be restarted if one
+ of the calls to its operator returns a non-zero value.
+ <LI> The fourth parameter is an operator function.
+ <LI> The fifth argument is the operator data. We used NULL since no
+ data was passed to and from the operator.
+</UL>
+</UL>
+
+<!--
+<A NAME="fc">
+<H3><U>File Contents</U></H3>
+-->
+
+
+
+
+
+<!-- BEGIN FOOTER INFO -->
+
+<P><hr noshade size=1>
+<font face="arial,helvetica" size="-1">
+ <a href="http://www.ncsa.uiuc.edu/"><img border=0
+ src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+ width=78 height=27 alt="NCSA"><br>
+ The National Center for Supercomputing Applications</A><br>
+ <a href="http://www.uiuc.edu/">University of Illinois
+ at Urbana-Champaign</a><br>
+ <br>
+<!-- <A HREF="helpdesk.mail.html"> -->
+<A HREF="mailto:hdfhelp@ncsa.uiuc.edu">
+hdfhelp@ncsa.uiuc.edu</A>
+<BR> <H6>Last Modified: August 27, 1999</H6><BR>
+<!-- modified by Barbara Jones - bljones@ncsa.uiuc.edu -->
+</FONT>
+<BR>
+<!-- <A HREF="mailto:hdfhelp@ncsa.uiuc.edu"> -->
+
+</BODY>
+</HTML>
+
+
+
diff --git a/doc/html/Tutor/mount.html b/doc/html/Tutor/mount.html
new file mode 100644
index 0000000..9d0e494
--- /dev/null
+++ b/doc/html/Tutor/mount.html
@@ -0,0 +1,304 @@
+<HTML><HEAD>
+<TITLE>HDF5 Tutorial - Mounting Files
+</TITLE>
+</HEAD>
+
+<body bgcolor="#ffffff">
+
+<!-- BEGIN MAIN BODY -->
+
+<A HREF="http://www.ncsa.uiuc.edu/"><img border=0
+src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+width=78 height=27 alt="NCSA"><P></A>
+
+ [ <A HREF="title.html"><I>HDF5 Tutorial Top</I></A> ]
+<H1>
+<BIG><BIG><BIG><FONT COLOR="#c101cd">Mounting Files</FONT>
+</BIG></BIG></BIG></H1>
+
+<hr noshade size=1>
+
+<BODY>
+<H2>Contents:</H2>
+<UL>
+ <LI> <A HREF="#def">Mounting Files</A>
+ <LI> Programming Example
+ <UL>
+ <LI> <A HREF="#desc">Description</A>
+ <LI> <A HREF="#rem">Remarks</A>
+<!--
+ <LI> <A HREF="#fc">File Contents</A>
+-->
+ </UL>
+</UL>
+<HR>
+<A NAME="def">
+<H2>Mounting Files</H2>
+
+HDF5 allows you to combine two or more HDF5 files in a manner similar to mounting
+files in UNIX. The group structure and metadata from one file appear as though
+they exist in another file. The following steps are involved:
+<OL>
+<LI>Open the files.
+
+<LI>Choose the "mount point" in the first file (parent). The "mount point" in
+ HDF5 is a group ( it can also be the root group ).
+
+<LI>Use the HDF5 API function H5Fmount to mount the second file (child) in
+ the first one.
+
+<LI>Work with the objects in the second file as if they were members of
+ the "mount point" group in the first file. The previous contents of
+ the "mount point" group are temporarily hidden.
+
+<LI>Unmount the second file using the H5Funmount function when the work is done.
+</OL>
+
+<H2> Programming Example</H2>
+<A NAME="desc">
+<H3><U>Description</U></H3>
+
+In the following example we create one file with a group in it, and another
+file with a dataset. Mounting is used to access the dataset from the second
+file as a member of a group in the first file. The following picture
+illustrates this concept.
+<PRE>
+
+ 'FILE1' 'FILE2'
+
+-------------------- --------------------
+! ! ! !
+! / ! ! / !
+! | ! ! | !
+! | ! ! | !
+! V ! ! V !
+! -------- ! ! ---------- !
+! ! Group ! ! ! ! Dataset! !
+! --------- ! ! ---------- !
+!------------------! !------------------!
+</PRE>
+After mounting the second file, 'FILE2', under the group in the file, 'FILE1',
+the parent has the following structure:
+<PRE>
+
+ 'FILE1'
+
+ --------------------
+ ! !
+ ! / !
+ ! | !
+ ! | !
+ ! V !
+ ! -------- !
+ ! ! Group ! !
+ ! --------- !
+ ! | !
+ ! | !
+ ! V !
+ ! ----------- !
+ ! ! Dataset ! !
+ ! !---------- !
+ ! !
+ !------------------!
+
+</PRE>
+[ <A HREF="examples/h5_mount.c">Download h5_mount.c</A> ]
+<PRE>
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+#include&lt;hdf5.h&gt;
+
+#define FILE1 "mount1.h5"
+#define FILE2 "mount2.h5"
+
+#define RANK 2
+#define NX 4
+#define NY 5
+
+int main(void)
+{
+
+ hid_t fid1, fid2, gid; /* Files and group identifiers */
+ hid_t did, tid, sid; /* Dataset and datatype identifiers */
+
+ herr_t status;
+ hsize_t dims[] = {NX,NY}; /* Dataset dimensions */
+
+ int i, j;
+ int bm[NX][NY], bm_out[NX][NY]; /* Data buffers */
+
+ /*
+ * Initialization of buffer matrix "bm"
+ */
+ for(i =0; i &lt; NX; i++) {
+ for(j = 0; j &lt; NY; j++)
+ bm[i][j] = i + j;
+ }
+
+ /*
+ * Create first file and a group in it.
+ */
+ fid1 = H5Fcreate(FILE1, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+ gid = H5Gcreate(fid1, "/G", 0);
+
+ /*
+ * Close group and file
+ */
+ H5Gclose(gid);
+ H5Fclose(fid1);
+
+ /*
+ * Create second file and dataset "D" in it.
+ */
+ fid2 = H5Fcreate(FILE2, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+ dims[0] = NX;
+ dims[1] = NY;
+ sid = H5Screate_simple(RANK, dims, NULL);
+ did = H5Dcreate(fid2, "D", H5T_NATIVE_INT, sid, H5P_DEFAULT);
+
+ /*
+ * Write data to the dataset.
+ */
+ status = H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, bm);
+
+ /*
+ * Close all identifiers.
+ */
+ H5Sclose(sid);
+ H5Dclose(did);
+ H5Fclose(fid2);
+
+ /*
+ * Reopen both files
+ */
+ fid1 = H5Fopen(FILE1, H5F_ACC_RDONLY, H5P_DEFAULT);
+ fid2 = H5Fopen(FILE2, H5F_ACC_RDONLY, H5P_DEFAULT);
+
+ /*
+ * Mount second file under G in the first file.
+ */
+ H5Fmount(fid1, "/G", fid2, H5P_DEFAULT);
+
+ /*
+ * Access dataset D in the first file under /G/D name.
+ */
+ did = H5Dopen(fid1,"/G/D");
+ tid = H5Dget_type(did);
+ status = H5Dread(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, bm_out);
+
+ /*
+ * Print out the data.
+ */
+ for(i=0; i &lt; NX; i++){
+ for(j=0; j &lt; NY; j++)
+ printf(" %d", bm_out[i][j]);
+ printf("\n");
+ }
+
+ /*
+ * Close all identifers
+ */
+ H5Tclose(tid);
+ H5Dclose(did);
+
+ /*
+ * Unmounting second file
+ */
+ H5Funmount(fid1, "/G");
+
+ /*
+ * Close both files
+ */
+ H5Fclose(fid1);
+ H5Fclose(fid2);
+
+ return 0;
+}
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+</PRE>
+<A NAME="rem">
+<H3><U>Remarks</U></H3>
+<UL>
+<LI> The first part of the program creates a group in one file and creates
+ and writes a dataset to another file.
+<P>
+<LI> Both files are reopened with the H5F_ACC_RDONLY access flag since no
+ objects will be modified. The child should be opened with H5F_ACC_RDWR if
+ the dataset is to be modified.
+<P>
+<LI> The second file is mounted in the first using the H5Fmount function.
+<PRE>
+ herr_t H5Fmount(hid_t loc_id, const char *name, hid_t file_id, hid_t plist_id)
+</PRE>
+<UL>
+ <LI> The first two arguments specify the location of the "mount point"
+ ( a group ). In this example the "mount point" is a group "/G" in the
+ file specified by its handle <I>fid1</I>. Since group G is in the root
+ group of the first file, one can also use just "G" to identify it.
+<P>
+ Below is a description of another scenario:<BR>
+ Suppose group G was a member of group D in the first file (<I>fid1</I>).
+ Then mounting point G can be specified in two different ways:
+<P>
+<UL>
+ <LI> <I>loc_id</I> is <I>fid1</I><BR>
+ <I>name</I> is "D/G"
+<P>
+ <LI> <I>loc_id</I> is an identifier of the group "D"<BR>
+ <I>name</I> is just "G"
+</UL>
+ <P>
+ <LI> The third argument is an identifier of the file which will be mounted.
+ Only one file can be mounted per "mount point".
+<P>
+ <LI> The fourth argument is an identifier of the property list to be used.
+ Currently, only the default property list, H5P_DEFAULT, can be used.
+</UL>
+<P>
+<LI> In this example we just read data from the dataset D. One can modify
+ data also. If the dataset is modified while the file is mounted, it becomes
+ modified in the original file too after the file is unmounted.
+<P>
+<LI> The file is unmounted with the H5Funmount function:
+<PRE>
+ herr_t H5Funmount(hid_t loc_id, const char *name)
+</PRE>
+ Arguments to this function specify the location of the "mount point".
+ In our example <I>loc_id</I> is an identifier of the first file, and
+ <I>name</I> is the name of group G, "/G". One could also use "G"
+ instead of "/G" since G is a member of the root group in the file
+ <I>fid1</I>. Notice that H5Funmount does not close files. They are closed
+ with the respective calls to the H5Fclose function. Closing the parent
+ automatically unmounts the child.
+<P>
+<LI>The h5dump utility cannot display files in memory, therefore no output
+ of FILE1 after FILE2 was mounted is provided.
+</UL>
+</UL>
+
+
+<!-- BEGIN FOOTER INFO -->
+
+<P><hr noshade size=1>
+<font face="arial,helvetica" size="-1">
+ <a href="http://www.ncsa.uiuc.edu/"><img border=0
+ src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+ width=78 height=27 alt="NCSA"><br>
+ The National Center for Supercomputing Applications</A><br>
+ <a href="http://www.uiuc.edu/">University of Illinois
+ at Urbana-Champaign</a><br>
+ <br>
+<!-- <A HREF="helpdesk.mail.html"> -->
+<A HREF="mailto:hdfhelp@ncsa.uiuc.edu">
+hdfhelp@ncsa.uiuc.edu</A>
+<BR> <H6>Last Modified: August 27, 1999</H6><BR>
+<!-- modified by Barbara Jones - bljones@ncsa.uiuc.edu -->
+</FONT>
+<BR>
+<!-- <A HREF="mailto:hdfhelp@ncsa.uiuc.edu"> -->
+
+</BODY>
+</HTML>
+
+
+
diff --git a/doc/html/Tutor/questions.html b/doc/html/Tutor/questions.html
new file mode 100644
index 0000000..26153f3
--- /dev/null
+++ b/doc/html/Tutor/questions.html
@@ -0,0 +1,142 @@
+<HTML><HEAD>
+<TITLE>HDF5 Tutorial - Introductory Topics Questions
+</TITLE>
+</HEAD>
+
+<body bgcolor="#ffffff">
+
+<!-- BEGIN MAIN BODY -->
+
+<A HREF="http://www.ncsa.uiuc.edu/"><img border=0
+src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+width=78 height=27 alt="NCSA"><P></A>
+
+ [ <A HREF="title.html"><I>HDF5 Tutorial Top</I></A> ]
+<H1>
+<BIG><BIG><BIG><FONT COLOR="#c101cd">Introductory Topics Questions</FONT>
+</BIG></BIG></BIG></H1>
+
+<hr noshade size=1>
+<PRE>
+
+
+Section 2: HDF File Organization
+================================
+
+1. Name and describe the two primary objects that can be stored in an HDF5
+ file:
+
+2. What is an attribute?
+
+3. Give the path name for an object called "harry" that is a member of a
+ group called "dick," which in turn is a member of the root group.
+
+
+Section 3: The HDF5 API
+=======================
+
+Describe the purpose of each of the following HDF5 APIs:
+
+H5A, H5D, H5E, F5F, H5G, H5T, H5Z
+
+
+
+Section 4: Creating an HDF File
+===============================
+
+1. What two HDF5 routines must be called in order to create an HDF5 file?
+
+2. What include file must be included in any file that uses the HDF5 library.
+
+3. An HDF5 file is never completely empty because as soon as an HDF5 file
+ is created, it automatically contains a certain primary object. What is
+ that object?
+
+
+
+Section 5: Creating a Dataset
+=============================
+
+1. Name and describe two major datatype categories.
+
+2. List the HDF5 atomic datatypes. Give an example of a predefined datatype.
+
+3. What does the dataspace describe? What are the major characteristics of the
+ simple dataspace?
+
+4. What information needs to be passed to the H5Dcreate function, i.e.
+ what information is needed to describe a dataset at creation time?
+
+
+Section 6: Reading from/Writing to a Dataset
+============================================
+
+1. What are six pieces of information which need to be specified for
+ reading and writing a dataset?
+
+2. Why are both the memory dataspace and file dataspace needed for
+ read/write operations, but only the memory datatype is specified for the
+ datatype?
+
+3. What does the line DATASPACE { SIMPLE (4 , 6 ) / ( 4 , 6 ) } in Fig 6.1
+ means?
+
+
+Section 7: Creating an Attribute
+================================
+
+1. What is an attribute?
+
+2. Can partial I/O operations be performed on attributes?
+
+
+Section 8: Creating a Group
+===========================
+
+What are the two primary objects that can be included in
+a group?
+
+
+Section 9: Creating Groups using Absolute/Relative Names
+========================================================
+
+1. Group names can be specified in two "ways". What are these
+ two types of group names that you can specify?
+
+2. You have a dataset named "moo" in the group "boo", which is
+ in the group "foo", which in turn, is in the root group. How would
+ you specify an absolute name to access this dataset?
+
+
+Section 10: Creating Datasets in Groups
+=======================================
+
+Describe a way to access the dataset "moo" described in the previous section
+(Section 9, question 2), using a relative and absolute pathname.
+
+</PRE>
+<!-- BEGIN FOOTER INFO -->
+
+<P><hr noshade size=1>
+<font face="arial,helvetica" size="-1">
+ <a href="http://www.ncsa.uiuc.edu/"><img border=0
+ src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+ width=78 height=27 alt="NCSA"><br>
+ The National Center for Supercomputing Applications</A><br>
+ <a href="http://www.uiuc.edu/">University of Illinois
+ at Urbana-Champaign</a><br>
+ <br>
+<!-- <A HREF="helpdesk.mail.html"> -->
+<A HREF="mailto:hdfhelp@ncsa.uiuc.edu">
+hdfhelp@ncsa.uiuc.edu</A>
+<BR> <H6>Last Modified: August 2, 1999</H6><BR>
+<!-- modified by Barbara Jones - bljones@ncsa.uiuc.edu -->
+</FONT>
+<BR>
+<!-- <A HREF="mailto:hdfhelp@ncsa.uiuc.edu"> -->
+
+</BODY>
+</HTML>
+
+
+
diff --git a/doc/html/Tutor/rdwt.html b/doc/html/Tutor/rdwt.html
new file mode 100644
index 0000000..1eb1a84
--- /dev/null
+++ b/doc/html/Tutor/rdwt.html
@@ -0,0 +1,259 @@
+<HTML><HEAD>
+<TITLE>HDF5 Tutorial - Reading to/Writing from a Dataset
+</TITLE>
+</HEAD>
+
+<body bgcolor="#ffffff">
+
+<!-- BEGIN MAIN BODY -->
+
+<A HREF="http://www.ncsa.uiuc.edu/"><img border=0
+src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+width=78 height=27 alt="NCSA"><P></A>
+
+ [ <A HREF="title.html"><I>HDF5 Tutorial Top</I></A> ]
+<H1>
+<BIG><BIG><BIG><FONT COLOR="#c101cd">Reading to/Writing from a Dataset</FONT>
+</BIG></BIG></BIG></H1>
+
+<hr noshade size=1>
+
+<BODY>
+<H2>Contents:</H2>
+<UL>
+ <LI><A HREF="#rdwr">Reading to/Writing from a Dataset</A>
+ <LI> Programming Example
+ <UL>
+ <LI> <A HREF="#desc">Description </A>
+ <LI> <A HREF="#rem">Remarks</A>
+ <LI> <A HREF="#fc">File Contents</A>
+ </UL>
+ </UL>
+<HR>
+<A NAME="rdwr">
+<H2>Reading to/Writing from a Dataset</h2>
+<P>
+During a dataset I/O operation, the library transfers raw data between memory
+and the file. The memory can have a data type different than the file data type
+and can also be a different size (memory is a subset of the dataset elements,
+or vice versa). Therefore, to perform read or write operations, the application
+program must specify:
+<UL>
+ <LI> The dataset
+
+ <LI> The dataset's data type in memory
+
+ <LI> The dataset's dataspace in memory
+
+ <LI> The dataset's dataspace in the file
+
+ <LI> The transfer properties (The data transfer properties control various
+ aspects of the I/O operations like the number of processes participating
+ in a collective I/O request or hints to the library to control caching of
+ raw data. In this tutorial, we use the default transfer properties.)
+
+ <LI> The data buffer
+</UL>
+
+
+<P>
+The steps to read to/write from a dataset are
+as follows:
+<OL>
+ <LI> Obtain the dataset identifier.
+ <LI> Specify the memory data type.
+ <LI> Specify the memory dataspace.
+ <LI> Specify the file dataspace.
+ <LI> Specify the transfer properties.
+ <LI> Perform the desired operation on the dataset.
+ <LI> Close the dataset.
+ <LI> Close the dataspace/data type, and property list if necessary.
+</OL>
+
+To read to/write from a dataset, the calling program must contain the following call:
+<PRE>
+ H5Dread(dataset_id, mem_type_id, mem_space_id, file_space_id,
+ xfer_plist_id, buf );
+</PRE>
+ or
+<PRE>
+ H5Dwrite(dataset_id, mem_type_id, mem_space_id, file_space_id,
+ xfer_plist_id, buf);
+</PRE>
+
+
+<P>
+<H2> Programming Example</H2>
+<A NAME="desc">
+<H3><U>Description</U></H3>
+The following example shows how to read and write an existing dataset.
+It opens the file created in the previous example, obtains the dataset
+identifier,
+<I>/dset</I>, writes the dataset to the file, then reads the dataset back from
+memory. It then closes the dataset and file. <BR>
+[ <A HREF="examples/h5_rdwt.c">Download h5_rdwt.c</A> ]
+
+<PRE>
+
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+#include &lt;hdf5.h&gt;
+#define FILE "dset.h5"
+
+main() {
+
+ hid_t file_id, dataset_id; /* identifiers */
+ herr_t status;
+ int i, j, dset_data[4][6];
+
+ /* Initialize the dataset. */
+ for (i = 0; i &lt; 4; i++)
+ for (j = 0; j &lt; 6; j++)
+ dset_data[i][j] = i * 6 + j + 1;
+
+ /* Open an existing file. */
+ file_id = H5Fopen(FILE, H5F_ACC_RDWR, H5P_DEFAULT);
+
+ /* Open an existing dataset. */
+
+ dataset_id = H5Dopen(file_id, "/dset");
+
+ /* Write the dataset. */
+ status = H5Dwrite(dataset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT,
+ dset_data);
+
+ status = H5Dread(dataset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT,
+ dset_data);
+
+ /* Close the dataset. */
+ status = H5Dclose(dataset_id);
+
+ /* Close the file. */
+ status = H5Fclose(file_id);
+}
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+</PRE>
+<A NAME="rem">
+<H3><U>Remarks</U></H3>
+<UL>
+<LI> H5Fopen opens an existing file and returns a file identifier.
+<PRE>
+ hid_t H5Fopen (const char *name, unsigned flags, hid_t access_id)
+</PRE>
+<UL>
+ <LI> The first argument is the file name.
+
+ <LI> The second argument is the file access mode. H5F_ACC_RDWR allows a file
+ to be read from and written to.
+
+ <LI> The third parameter is the identifier for the file access property list.
+ H5P_DEFAULT specifies the default file access property list.
+</UL>
+<P>
+<LI> H5Dopen opens an existing dataset with the name specified by the second
+ argument at the location specified by the first parameter, and returns an
+ identifier.
+<PRE>
+ hid_t H5Dopen (hid_t loc_id, const char *name)
+</PRE>
+<P>
+<LI> H5Dwrite writes raw data from an application buffer to the specified
+ dataset, converting from the data type and data space of the dataset in
+ memory to the data type and data space of the dataset in the file.
+<PRE>
+ herr_t H5Dwrite (hid_t dataset_id, hid_t mem_type_id, hid_t mem_space_id,
+ hid_t file_space_id, hid_t xfer_plist_id, const void * buf)
+</PRE>
+<UL>
+ <LI> The first parameter is the identifier of the dataset.
+
+ <LI> The second parameter is the identifier of the dataset's datatype in
+ memory. H5T_NATIVE_INT is an integer data type for the machine on which
+ the library was compiled.
+
+ <LI> The third parameter is the identifier of the dataset's dataspace in
+ memory. H5S_ALL indicates that the dataset's dataspace in memory is the
+ same as that in the file.
+
+ <LI> The fourth parameter is the identifier of the dataset's dataspace in the
+ file. H5S_ALL indicates that the entire dataspace of the dataset in the
+ file is referenced.
+
+ <LI> The fifth parameter is the identifier of the data transfer propery list.
+ H5P_DEFAULT indicates that the default data transfer property list is used.
+
+ <LI> The last parameter is the data buffer.
+</UL>
+<P>
+<LI> H5Dread reads raw data from the specified dataset to an application buffer,
+ converting from the file datatype and dataspace to the memory datatype and
+ dataspace.
+<PRE>
+ herr_t H5Dread (hid_t dataset_id, hid_t mem_type_id, hid_t mem_space_id,
+ hid_t file_space_id, hid_t xfer_plist_id, void * buf)
+</PRE>
+<UL>
+ <LI> The first parameter is the identifier of the dataset read from.
+
+ <LI> The second parameter is the identifier of the dataset's memory datatype.
+
+ <LI> The third parameter is the identifier of the dataset's memory dataspace.
+
+ <LI> The fourth parameter is the identifier of the dataset's file dataspace.
+
+ <LI> The fifth parameter is the identifier of the data transfer propery list.
+
+ <LI> The last parameter is the data buffer.
+</UL>
+</OL>
+
+<A NAME="fc">
+<H3><U>File Contents</U></H3>
+Figure 6.1 shows the contents of 'dset.h5'.
+<P>
+ <B>Fig. 6.1</B> &nbsp; <I>'dset.h5' in DDL</I>
+<PRE>
+ HDF5 "dset.h5" {
+ GROUP "/" {
+ DATASET "dset" {
+ DATATYPE { H5T_STD_I32BE }
+ DATASPACE { SIMPLE ( 4, 6 ) / ( 4, 6 ) }
+ DATA {
+ 1, 2, 3, 4, 5, 6,
+ 7, 8, 9, 10, 11, 12,
+ 13, 14, 15, 16, 17, 18,
+ 19, 20, 21, 22, 23, 24
+ }
+ }
+ }
+ }
+</PRE>
+
+
+
+
+<!-- BEGIN FOOTER INFO -->
+
+<P><hr noshade size=1>
+<font face="arial,helvetica" size="-1">
+ <a href="http://www.ncsa.uiuc.edu/"><img border=0
+ src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+ width=78 height=27 alt="NCSA"><br>
+ The National Center for Supercomputing Applications</A><br>
+ <a href="http://www.uiuc.edu/">University of Illinois
+ at Urbana-Champaign</a><br>
+ <br>
+<!-- <A HREF="helpdesk.mail.html"> -->
+<A HREF="mailto:hdfhelp@ncsa.uiuc.edu">
+hdfhelp@ncsa.uiuc.edu</A>
+<BR> <H6>Last Modified: August 27, 1999</H6><BR>
+<!-- modified by Barbara Jones - bljones@ncsa.uiuc.edu -->
+</FONT>
+<BR>
+<!-- <A HREF="mailto:hdfhelp@ncsa.uiuc.edu"> -->
+
+</BODY>
+</HTML>
+
+
+
diff --git a/doc/html/Tutor/references.html b/doc/html/Tutor/references.html
new file mode 100644
index 0000000..ca73587
--- /dev/null
+++ b/doc/html/Tutor/references.html
@@ -0,0 +1,65 @@
+<HTML><HEAD>
+<TITLE>HDF5 Tutorial - References
+</TITLE>
+</HEAD>
+
+<body bgcolor="#ffffff">
+
+<!-- BEGIN MAIN BODY -->
+
+<A HREF="http://www.ncsa.uiuc.edu/"><img border=0
+src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+width=78 height=27 alt="NCSA"><P></A>
+
+ [ <A HREF="title.html"><I>HDF5 Tutorial Top</I></A> ]
+<H1>
+<BIG><BIG><BIG><FONT COLOR="#c101cd">References</FONT>
+</BIG></BIG></BIG></H1>
+
+<hr noshade size=1>
+
+<BODY>
+<UL>
+ <LI><B>HDF Home Page:</B> &nbsp;&nbsp;&nbsp;
+ <A HREF="http://hdf.ncsa.uiuc.edu/">http://hdf.ncsa.uiuc.edu/</A>
+<P>
+ <LI><B>HDF5 Home Page and Documentation:</B> &nbsp;
+ <A HREF="http://hdf.ncsa.uiuc.edu/HDF5/">http://hdf.ncsa.uiuc.edu/HDF5/</A>
+<P>
+ <LI><B>HDF5 DDL:</B> &nbsp;
+ <A HREF="http://hdf.ncsa.uiuc.edu/HDF5/doc/ddl.html">http://hdf.ncsa.uiuc.edu/HDF5/doc/ddl.html</A>
+<P>
+ <LI><B>Introduction to HDF5:</B> &nbsp;
+ <A HREF="http://hdf.ncsa.uiuc.edu/HDF5/doc/H5.intro.html">http://hdf.ncsa.uiuc.edu/HDF5/doc/H5.intro.html</A> <BR>
+Overview of HDF5 with example programs.
+<P>
+ <LI><B>Other Miscellaneous HDF5 Example Programs:</B> &nbsp;
+ <A HREF="http://hdf.ncsa.uiuc.edu/training/other-ex5/">http://hdf.ncsa.uiuc.edu/training/other-ex5/</A>
+</UL>
+
+
+<!-- BEGIN FOOTER INFO -->
+
+<P><hr noshade size=1>
+<font face="arial,helvetica" size="-1">
+ <a href="http://www.ncsa.uiuc.edu/"><img border=0
+ src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+ width=78 height=27 alt="NCSA"><br>
+ The National Center for Supercomputing Applications</A><br>
+ <a href="http://www.uiuc.edu/">University of Illinois
+ at Urbana-Champaign</a><br>
+ <br>
+<!-- <A HREF="helpdesk.mail.html"> -->
+<A HREF="mailto:hdfhelp@ncsa.uiuc.edu">
+hdfhelp@ncsa.uiuc.edu</A>
+<BR> <H6>Last Modified: September 28, 1999</H6><BR>
+<!-- modified by Barbara Jones - bljones@ncsa.uiuc.edu -->
+</FONT>
+<BR>
+<!-- <A HREF="mailto:hdfhelp@ncsa.uiuc.edu"> -->
+
+</BODY>
+</HTML>
+
+
+
diff --git a/doc/html/Tutor/reftoobj.html b/doc/html/Tutor/reftoobj.html
new file mode 100644
index 0000000..43a6375
--- /dev/null
+++ b/doc/html/Tutor/reftoobj.html
@@ -0,0 +1,478 @@
+<HTML><HEAD>
+<TITLE>HDF5 Tutorial - References to Objects
+</TITLE>
+</HEAD>
+
+<body bgcolor="#ffffff">
+
+<!-- BEGIN MAIN BODY -->
+
+<A HREF="http://www.ncsa.uiuc.edu/"><img border=0
+src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+width=78 height=27 alt="NCSA"><P></A>
+
+ [ <A HREF="title.html"><I>HDF5 Tutorial Top</I></A> ]
+<h1>
+<BIG><BIG><BIG><FONT COLOR="#c101cd"> References to Objects</FONT>
+</BIG></BIG></BIG></H1>
+
+<hr noshade size=1>
+
+<BODY>
+<H2>Contents:</H2>
+<UL>
+ <LI><A HREF="#def">References to Objects</A>
+ <LI> <A HREF="#def1">Creating and Storing References to Objects</A>
+ <LI> Programming Example
+ <UL>
+ <LI> <A HREF="#desc1">Description</A>
+ <LI> <A HREF="#rem1">Remarks</A>
+ <LI> <A HREF="#fc1">File Contents</A>
+ </UL>
+ <LI> <A HREF="#def2">Reading References and Accessing Objects Using
+ References</A>
+ <LI> Programming Example
+ <UL>
+ <LI> <A HREF="#desc2">Description</A>
+ <LI> <A HREF="#rem2">Remarks</A>
+ </UL>
+</UL>
+<HR>
+<A NAME="def">
+<H2>References to Objects</H2>
+In HDF5, objects (i.e. groups, datasets, and named data types) are usually
+accessed by name. This access method was discussed in previous sections.
+There is another way to access stored objects - by reference.
+<P>
+An object reference is based on the relative file address of the object header
+in the file and is constant for the life of the object. Once a reference to
+an object is created and stored in a dataset in the file, it can be used
+to dereference the object it points to. References are handy for creating
+a file index or for grouping related objects by storing references to them in
+one dataset.
+<P>
+<A NAME="def1">
+<H2>Creating and Storing References to Objects</H2>
+The following steps are involved in creating and storing file references
+to objects:
+<OL>
+<LI> Create the objects or open them if they already exist in the file.
+<P>
+<LI> Create a dataset to store the objects' references.
+<P>
+<LI> Create and store references to the objects in a buffer.
+<P>
+<LI> Write a buffer with the references to the dataset.
+</OL>
+
+
+<H2> Programming Example</H2>
+<A NAME="desc1">
+<H3><U>Description</U></H3>
+The example below creates a group and two datasets and a named data type in the
+group. References to these four objects are stored in the dataset in the root
+group. [<A HREF="examples/h5_ref2objw.c">Download h5_ref2objw.c</A>]
+<PRE>
+
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+#include &lt;hdf5.h&gt;
+
+#define FILE1 "trefer1.h5"
+
+/* 1-D dataset with fixed dimensions */
+#define SPACE1_NAME "Space1"
+#define SPACE1_RANK 1
+#define SPACE1_DIM1 4
+
+/* 2-D dataset with fixed dimensions */
+#define SPACE2_NAME "Space2"
+#define SPACE2_RANK 2
+#define SPACE2_DIM1 10
+#define SPACE2_DIM2 10
+
+int
+main(void) {
+ hid_t fid1; /* HDF5 File IDs */
+ hid_t dataset; /* Dataset ID */
+ hid_t group; /* Group ID */
+ hid_t sid1; /* Dataspace ID */
+ hid_t tid1; /* Datatype ID */
+ hsize_t dims1[] = {SPACE1_DIM1};
+ hobj_ref_t *wbuf; /* buffer to write to disk */
+ int *tu32; /* Temporary pointer to int data */
+ int i; /* counting variables */
+ const char *write_comment="Foo!"; /* Comments for group */
+ herr_t ret; /* Generic return value */
+
+/* Compound datatype */
+typedef struct s1_t {
+ unsigned int a;
+ unsigned int b;
+ float c;
+} s1_t;
+
+ /* Allocate write buffers */
+ wbuf=(hobj_ref_t *)malloc(sizeof(hobj_ref_t)*SPACE1_DIM1);
+ tu32=malloc(sizeof(int)*SPACE1_DIM1);
+
+ /* Create file */
+ fid1 = H5Fcreate(FILE1, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+
+ /* Create dataspace for datasets */
+ sid1 = H5Screate_simple(SPACE1_RANK, dims1, NULL);
+
+ /* Create a group */
+ group=H5Gcreate(fid1,"Group1",-1);
+
+ /* Set group's comment */
+ ret=H5Gset_comment(group,".",write_comment);
+
+ /* Create a dataset (inside Group1) */
+ dataset=H5Dcreate(group,"Dataset1",H5T_STD_U32LE,sid1,H5P_DEFAULT);
+
+ for(i=0; i &lt; SPACE1_DIM1; i++)
+ tu32[i] = i*3;
+
+ /* Write selection to disk */
+ ret=H5Dwrite(dataset,H5T_NATIVE_INT,H5S_ALL,H5S_ALL,H5P_DEFAULT,tu32);
+
+ /* Close Dataset */
+ ret = H5Dclose(dataset);
+
+ /* Create another dataset (inside Group1) */
+ dataset=H5Dcreate(group,"Dataset2",H5T_NATIVE_UCHAR,sid1,H5P_DEFAULT);
+
+ /* Close Dataset */
+ ret = H5Dclose(dataset);
+
+ /* Create a datatype to refer to */
+ tid1 = H5Tcreate (H5T_COMPOUND, sizeof(s1_t));
+
+ /* Insert fields */
+ ret=H5Tinsert (tid1, "a", HOFFSET(s1_t,a), H5T_NATIVE_INT);
+
+ ret=H5Tinsert (tid1, "b", HOFFSET(s1_t,b), H5T_NATIVE_INT);
+
+ ret=H5Tinsert (tid1, "c", HOFFSET(s1_t,c), H5T_NATIVE_FLOAT);
+
+ /* Save datatype for later */
+ ret=H5Tcommit (group, "Datatype1", tid1);
+
+ /* Close datatype */
+ ret = H5Tclose(tid1);
+
+ /* Close group */
+ ret = H5Gclose(group);
+
+ /* Create a dataset to store references */
+ dataset=H5Dcreate(fid1,"Dataset3",H5T_STD_REF_OBJ,sid1,H5P_DEFAULT);
+
+ /* Create reference to dataset */
+ ret = H5Rcreate(&wbuf[0],fid1,"/Group1/Dataset1",H5R_OBJECT,-1);
+
+ /* Create reference to dataset */
+ ret = H5Rcreate(&wbuf[1],fid1,"/Group1/Dataset2",H5R_OBJECT,-1);
+
+ /* Create reference to group */
+ ret = H5Rcreate(&wbuf[2],fid1,"/Group1",H5R_OBJECT,-1);
+
+ /* Create reference to named datatype */
+ ret = H5Rcreate(&wbuf[3],fid1,"/Group1/Datatype1",H5R_OBJECT,-1);
+
+ /* Write selection to disk */
+ ret=H5Dwrite(dataset,H5T_STD_REF_OBJ,H5S_ALL,H5S_ALL,H5P_DEFAULT,wbuf);
+
+ /* Close disk dataspace */
+ ret = H5Sclose(sid1);
+
+ /* Close Dataset */
+ ret = H5Dclose(dataset);
+
+ /* Close file */
+ ret = H5Fclose(fid1);
+ free(wbuf);
+ free(tu32);
+ return 0;
+}
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+</PRE>
+<A NAME="rem1">
+<H3><U>Remarks</U></H3>
+
+<UL>
+<LI> The following code,
+<PRE>
+ dataset = H5Dcreate ( fid1,"Dataset3",H5T_STD_REF_OBJ,sid1,H5P_DEFAULT );
+</PRE>
+ creates a dataset to store references. Notice that the H5T_SDT_REF_OBJ
+ data type is used to specify that references to objects will be
+ stored. The data type H5T_STD_REF_DSETREG is used to store the dataset
+ region references and will be discussed later in this tutorial.
+<P>
+<LI>The next few calls to the H5Rcreate function create references to the
+objects and store them in the buffer <I>wbuf</I>. The signature of the
+H5Rcreate function is:
+<PRE>
+ herr_t H5Rcreate ( void* buf, hid_t loc_id, const char *name,
+ H5R_type_t ref_type, hid_t space_id )
+</PRE>
+<UL>
+ <LI> The first argument specifies the buffer to store the reference.
+ <LI> The second and third arguments specify the name of the referenced
+ object. In our example, the file identifier <I>fid1</I> and
+ absolute name of the dataset "/Group1/Dataset1" were used to
+ identify the dataset. One could also use the group identifier
+ of group "Group1" and the relative name of the dataset "Dataset1"
+ to create the same reference.
+ <LI> The fourth argument specifies the type of the reference. Our example
+ uses references to the objects (H5R_OBJECT). Another type of
+ reference, reference to the dataset region ( H5R_DATASET_REGION),
+ will be discussed later in this tutorial.
+ <LI> The fifth argument specifies the space identifier. When references
+ to the objects are created it should be set to -1.
+</UL>
+<P>
+<LI>The H5Dwrite function writes a dataset with the references to the file.
+ Notice that the H5T_SDT_REF_OBJ data type is used to describe the
+ dataset's memory data type.
+<P>
+</UL>
+<A NAME="fc1">
+<H3><U>File Contents</U></H3>
+The contents of the "trefer1.h5" file created by this example are as follows:
+<PRE>
+ Fig "trefer1.h5"
+==============================================================================
+
+HDF5 "trefer1.h5" {
+GROUP "/" {
+ DATASET "Dataset3" {
+ DATATYPE { H5T_REFERENCE }
+ DATASPACE { SIMPLE ( 4 ) / ( 4 ) }
+ DATA {
+ DATASET 0:1696, DATASET 0:2152, GROUP 0:1320, DATATYPE 0:2268
+ }
+ }
+ GROUP "Group1" {
+ DATASET "Dataset1" {
+ DATATYPE { H5T_STD_U32LE }
+ DATASPACE { SIMPLE ( 4 ) / ( 4 ) }
+ DATA {
+ 0, 3, 6, 9
+ }
+ }
+ DATASET "Dataset2" {
+ DATATYPE { H5T_STD_U8LE }
+ DATASPACE { SIMPLE ( 4 ) / ( 4 ) }
+ DATA {
+ 0, 0, 0, 0
+ }
+ }
+ DATATYPE "Datatype1" {
+ H5T_STD_I32BE "a";
+ H5T_STD_I32BE "b";
+ H5T_IEEE_F32BE "c";
+ }
+ }
+}
+}
+===============================================================================
+</PRE>
+Notice how the data in dataset "Dataset3" is described. The two numbers
+with the colon in between represent a unique identifier of the object. These
+numbers are constant for the life of the object.
+
+
+<A NAME="def2">
+<H2>Reading References and Accessing Objects Using References</H2>
+
+The following steps are involved:
+<OL>
+<LI> Open the dataset with the references and read them. The H5T_STD_REF_OBJ
+ data type must be used to describe the memory data type.
+<P>
+<LI> Use the read reference to obtain the identifier of the object the
+ reference points to.
+<P>
+<LI> Open the dereferenced object and perform the desired operations.
+<P>
+<LI> Close all objects when the task is complete.
+</OL>
+
+<H2> Programming Example</H2>
+<A NAME="desc2">
+<H3><U>Description</U></H3>
+The example below opens and reads dataset "Dataset3" from the file created
+previously. Then the program dereferences the references to
+dataset "Dataset1", the group and the named data type, and opens those objects.
+The program reads and displays the dataset's data, the group's comment and
+the number of members of the compound data type.
+[ <A HREF="examples/h5_ref2objr.c">Download h5_ref2objr.c</A> ]
+
+<PRE>
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+#include &lt;stdlib.h&gt;
+#include &lt;hdf5.h&gt;
+
+#define FILE1 "trefer1.h5"
+
+/* dataset with fixed dimensions */
+#define SPACE1_NAME "Space1"
+#define SPACE1_RANK 1
+#define SPACE1_DIM1 4
+
+int
+main(void)
+{
+ hid_t fid1; /* HDF5 File IDs */
+ hid_t dataset, /* Dataset ID */
+ dset2; /* Dereferenced dataset ID */
+ hid_t group; /* Group ID */
+ hid_t sid1; /* Dataspace ID */
+ hid_t tid1; /* Datatype ID */
+ hobj_ref_t *rbuf; /* buffer to read from disk */
+ int *tu32; /* temp. buffer read from disk */
+ int i; /* counting variables */
+ char read_comment[10];
+ herr_t ret; /* Generic return value */
+
+ /* Allocate read buffers */
+ rbuf = malloc(sizeof(hobj_ref_t)*SPACE1_DIM1);
+ tu32 = malloc(sizeof(int)*SPACE1_DIM1);
+
+ /* Open the file */
+ fid1 = H5Fopen(FILE1, H5F_ACC_RDWR, H5P_DEFAULT);
+
+ /* Open the dataset */
+ dataset=H5Dopen(fid1,"/Dataset3");
+
+ /* Read selection from disk */
+ ret=H5Dread(dataset,H5T_STD_REF_OBJ,H5S_ALL,H5S_ALL,H5P_DEFAULT,rbuf);
+
+ /* Open dataset object */
+ dset2 = H5Rdereference(dataset,H5R_OBJECT,&rbuf[0]);
+
+ /* Check information in referenced dataset */
+ sid1 = H5Dget_space(dset2);
+
+ ret=H5Sget_simple_extent_npoints(sid1);
+
+ /* Read from disk */
+ ret=H5Dread(dset2,H5T_NATIVE_INT,H5S_ALL,H5S_ALL,H5P_DEFAULT,tu32);
+ printf("Dataset data : \n");
+ for (i=0; i &lt; SPACE1_DIM1 ; i++) printf (" %d ", tu32[i]);
+ printf("\n");
+ printf("\n");
+
+ /* Close dereferenced Dataset */
+ ret = H5Dclose(dset2);
+
+ /* Open group object */
+ group = H5Rdereference(dataset,H5R_OBJECT,&rbuf[2]);
+
+ /* Get group's comment */
+ ret=H5Gget_comment(group,".",10,read_comment);
+ printf("Group comment is %s \n", read_comment);
+ printf(" \n");
+ /* Close group */
+ ret = H5Gclose(group);
+
+ /* Open datatype object */
+ tid1 = H5Rdereference(dataset,H5R_OBJECT,&rbuf[3]);
+
+ /* Verify correct datatype */
+ {
+ H5T_class_t tclass;
+
+ tclass= H5Tget_class(tid1);
+ if ((tclass == H5T_COMPOUND))
+ printf ("Number of compound datatype members is %d \n", H5Tget_nmembers(tid1));
+ printf(" \n");
+ }
+
+ /* Close datatype */
+ ret = H5Tclose(tid1);
+
+ /* Close Dataset */
+ ret = H5Dclose(dataset);
+
+ /* Close file */
+ ret = H5Fclose(fid1);
+
+ /* Free memory buffers */
+ free(rbuf);
+ free(tu32);
+ return 0;
+}
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+</PRE>
+Following is the output of this program:
+<PRE>
+
+Dataset data :
+ 0 3 6 9
+
+Group comment is Foo!
+
+Number of compound datatype members is 3
+</PRE>
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+<A NAME="rem2">
+<H3><U>Remarks</U></H3>
+
+<UL>
+<LI> The H5Dread function was used to read dataset "Dataset3" containing the
+ references to the objects. The H5T_STD_REF_OBJ memory data type was
+ used to read references to memory.
+<P>
+<LI> H5Rdereference obtains the object's identifier. The signature of this
+ function is:
+<PRE>
+ hid_t H5Rdereference (hid_t datatset, H5R_type_t ref_type, void *ref)
+</PRE>
+ <UL>
+ <LI> The first argument is an identifier of the dataset with the references.
+ <LI> The second argument specifies the reference type. We used
+ H5R_OBJECT to
+ specify a reference to an object. Another type is
+ H5R_DATASET_REGION to specify a reference to a dataset region.
+ This will be discussed later in this tutorial.
+ <LI> The third argument is a buffer to store the reference to be read.
+ <LI> The function returns an identifier of the object the reference
+ points to. In our simplified situation we know what type was
+ stored in the dataset. When the type of the object is unknown, then
+ H5Rget_object_type should be used to identify the type of object
+ the reference points to.
+ </UL>
+</UL>
+
+
+
+<!-- BEGIN FOOTER INFO -->
+
+<P><hr noshade size=1>
+<font face="arial,helvetica" size="-1">
+ <a href="http://www.ncsa.uiuc.edu/"><img border=0
+ src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+ width=78 height=27 alt="NCSA"><br>
+ The National Center for Supercomputing Applications</A><br>
+ <a href="http://www.uiuc.edu/">University of Illinois
+ at Urbana-Champaign</a><br>
+ <br>
+<!-- <A HREF="helpdesk.mail.html"> -->
+<A HREF="mailto:hdfhelp@ncsa.uiuc.edu">
+hdfhelp@ncsa.uiuc.edu</A>
+<BR> <H6>Last Modified: August 27, 1999</H6><BR>
+<!-- modified by Barbara Jones - bljones@ncsa.uiuc.edu -->
+</FONT>
+<BR>
+<!-- <A HREF="mailto:hdfhelp@ncsa.uiuc.edu"> -->
+
+</BODY>
+</HTML>
+
+
+
diff --git a/doc/html/Tutor/reftoreg.html b/doc/html/Tutor/reftoreg.html
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+++ b/doc/html/Tutor/reftoreg.html
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+<HTML><HEAD>
+<TITLE>HDF5 Tutorial - References to Dataset Regions
+</TITLE>
+</HEAD>
+
+<body bgcolor="#ffffff">
+
+<!-- BEGIN MAIN BODY -->
+
+<A HREF="http://www.ncsa.uiuc.edu/"><img border=0
+src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+width=78 height=27 alt="NCSA"><P></A>
+
+[ <A HREF="title.html"><I>HDF5 Tutorial Top</I></A> ]
+<H1><BIG><BIG><BIG><FONT COLOR="#c101cd"> References to Dataset Regions</FONT>
+</BIG></BIG></BIG></H1>
+
+<hr noshade size=1>
+
+<BODY>
+<H2>Contents:</H2>
+<UL>
+ <LI> <A HREF="#def">References to Dataset Regions</A>
+ <LI> <A HREF="#def1">Creating and Storing References to Dataset Regions</A>
+ <LI> Programming Example
+ <UL>
+ <LI> <A HREF="#desc1">Description</A>
+ <LI> <A HREF="#rem1">Remarks</A>
+ <LI> <A HREF="#fc1">File Contents</A>
+ </UL>
+ <LI> <A HREF="#def2">Reading References to Dataset Regions</A>
+ <LI> Programming Example
+ <UL>
+ <LI> <A HREF="#desc2">Description</A>
+ <LI> <A HREF="#rem2">Remarks</A>
+ </UL>
+</UL>
+<HR>
+<A NAME="def">
+<H2>References to Dataset Regions</H2>
+Previously you learned about creating, reading, and writing
+dataset selections. Here you will learn how to store dataset
+selections in a file, and how to read them back using references
+to the dataset regions.
+<P>
+A dataset region reference points to the dataset selection by storing the
+relative file address of the dataset header and the global heap offset of
+the referenced selection. The selection referenced is located by retrieving
+the coordinates of the areas in the selection from the global heap. This
+internal mechanism of storing and retrieving dataset selections is transparent
+to the user. A reference to the dataset selection ( region ) is constant for
+the life of the dataset.
+<A NAME="def1">
+<H2>Creating and Storing References to Dataset Regions</H2>
+The following steps are involved in creating and storing references to
+the dataset regions:
+<OL>
+
+<LI> Create a dataset to store the dataset regions (selections).
+<P>
+<LI> Create selections in the dataset(s). Dataset(s) should already exist in the
+ file.
+<P>
+<LI> Create references to the selections and store them in a buffer.
+<P>
+<LI> Write references to the dataset regions in the file.
+<P>
+<LI> Close all objects.
+</OL>
+
+<H2> Programming Example</H2>
+<A NAME="desc1">
+<H3><U>Description</U></H3>
+The example below creates a dataset in the file. Then it creates a
+dataset to store references to the dataset regions (selections).
+The first selection is a 6 x 6 hyperslab. The second selection is a point
+selection in the same dataset.
+References to both selections are created and stored in the buffer, and then
+written to the dataset in the file.
+
+[<A HREF="examples/h5_ref2regw.c">Download h5_ref2regw.c</A>]
+<PRE>
+
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+#include &lt;stdlib.h&gt;
+#include &lt;hdf5.h&gt;
+
+#define FILE2 "trefer2.h5"
+#define SPACE1_NAME "Space1"
+#define SPACE1_RANK 1
+#define SPACE1_DIM1 4
+
+/* Dataset with fixed dimensions */
+#define SPACE2_NAME "Space2"
+#define SPACE2_RANK 2
+#define SPACE2_DIM1 10
+#define SPACE2_DIM2 10
+
+/* Element selection information */
+#define POINT1_NPOINTS 10
+
+int
+main(void)
+{
+ hid_t fid1; /* HDF5 File IDs */
+ hid_t dset1, /* Dataset ID */
+ dset2; /* Dereferenced dataset ID */
+ hid_t sid1, /* Dataspace ID #1 */
+ sid2; /* Dataspace ID #2 */
+ hsize_t dims1[] = {SPACE1_DIM1},
+ dims2[] = {SPACE2_DIM1, SPACE2_DIM2};
+ hssize_t start[SPACE2_RANK]; /* Starting location of hyperslab */
+ hsize_t stride[SPACE2_RANK]; /* Stride of hyperslab */
+ hsize_t count[SPACE2_RANK]; /* Element count of hyperslab */
+ hsize_t block[SPACE2_RANK]; /* Block size of hyperslab */
+ hssize_t coord1[POINT1_NPOINTS][SPACE2_RANK];
+ /* Coordinates for point selection */
+ hdset_reg_ref_t *wbuf; /* buffer to write to disk */
+ int *dwbuf; /* Buffer for writing numeric data to disk */
+ int i; /* counting variables */
+ herr_t ret; /* Generic return value */
+
+
+ /* Allocate write & read buffers */
+ wbuf=calloc(sizeof(hdset_reg_ref_t), SPACE1_DIM1);
+ dwbuf=malloc(sizeof(int)*SPACE2_DIM1*SPACE2_DIM2);
+
+ /* Create file */
+ fid1 = H5Fcreate(FILE2, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+
+ /* Create dataspace for datasets */
+ sid2 = H5Screate_simple(SPACE2_RANK, dims2, NULL);
+
+ /* Create a dataset */
+ dset2=H5Dcreate(fid1,"Dataset2",H5T_STD_U8LE,sid2,H5P_DEFAULT);
+
+ for(i=0; i &lt; SPACE2_DIM1*SPACE2_DIM2; i++)
+ dwbuf[i]=i*3;
+
+ /* Write selection to disk */
+ ret=H5Dwrite(dset2,H5T_NATIVE_INT,H5S_ALL,H5S_ALL,H5P_DEFAULT,dwbuf);
+
+ /* Close Dataset */
+ ret = H5Dclose(dset2);
+
+ /* Create dataspace for the reference dataset */
+ sid1 = H5Screate_simple(SPACE1_RANK, dims1, NULL);
+
+ /* Create a dataset */
+ dset1=H5Dcreate(fid1,"Dataset1",H5T_STD_REF_DSETREG,sid1,H5P_DEFAULT);
+
+ /* Create references */
+
+ /* Select 6x6 hyperslab for first reference */
+ start[0]=2; start[1]=2;
+ stride[0]=1; stride[1]=1;
+ count[0]=6; count[1]=6;
+ block[0]=1; block[1]=1;
+ ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
+
+ /* Store first dataset region */
+ ret = H5Rcreate(&wbuf[0],fid1,"/Dataset2",H5R_DATASET_REGION,sid2);
+
+ /* Select sequence of ten points for second reference */
+ coord1[0][0]=6; coord1[0][1]=9;
+ coord1[1][0]=2; coord1[1][1]=2;
+ coord1[2][0]=8; coord1[2][1]=4;
+ coord1[3][0]=1; coord1[3][1]=6;
+ coord1[4][0]=2; coord1[4][1]=8;
+ coord1[5][0]=3; coord1[5][1]=2;
+ coord1[6][0]=0; coord1[6][1]=4;
+ coord1[7][0]=9; coord1[7][1]=0;
+ coord1[8][0]=7; coord1[8][1]=1;
+ coord1[9][0]=3; coord1[9][1]=3;
+ ret = H5Sselect_elements(sid2,H5S_SELECT_SET,POINT1_NPOINTS,(const hssize_t **)coord1);
+
+ /* Store second dataset region */
+ ret = H5Rcreate(&wbuf[1],fid1,"/Dataset2",H5R_DATASET_REGION,sid2);
+
+ /* Write selection to disk */
+ ret=H5Dwrite(dset1,H5T_STD_REF_DSETREG,H5S_ALL,H5S_ALL,H5P_DEFAULT,wbuf);
+
+ /* Close all objects */
+ ret = H5Sclose(sid1);
+ ret = H5Dclose(dset1);
+ ret = H5Sclose(sid2);
+
+ /* Close file */
+ ret = H5Fclose(fid1);
+
+ free(wbuf);
+ free(dwbuf);
+ return 0;
+}
+
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+</PRE>
+
+<A NAME="rem1">
+<H3><U>Remarks</U></H3>
+<UL>
+<LI> The code,
+<PRE>
+ dset1=H5Dcreate(fid1,"Dataset1",H5T_STD_REF_DSETREG,sid1,H5P_DEFAULT);
+</PRE>
+ creates a dataset to store references to the dataset(s) regions(selections).
+ Notice that the H5T_STD_REF_DSETREG data type is used.
+<P>
+
+<LI> This program uses hyperslab and point selections. We used the dataspace
+ handle <I>sid2</I> for the calls to H5Sselect_hyperslab and
+ H5Sselect_elements. The handle was created when dataset "Dataset2" was
+ created and it describes the dataset's dataspace. We did not close it when
+ the dataset was closed to decrease the number of function calls used
+ in the example.
+ In a real application program, one should open the dataset and determine
+ its dataspace using the H5Dget_space function.
+<P>
+<LI> H5Rcreate is used to create a dataset region reference and store it in a
+ buffer. The signature of the function is:
+<PRE>
+ herr_t H5Rcreate(void *buf, hid_t loc_id, const char *name,
+ H5R_type_t ref_type, hid_t space_id)
+</PRE>
+<UL>
+ <LI> The first argument specifies the buffer to store the reference.
+ <LI> The second and third arguments specify the name of the referenced
+ dataset. In our example the file identifier <I>fid1</I> and the
+ absolute name of the dataset "/Dataset2" were used to identify the
+ dataset. The reference to the region of this dataset is stored in
+ the buffer <I>buf</I>.
+
+ <LI> The fourth argument specifies the type of the reference. Since we are
+ creating references to the dataset regions, the H5R_DATASET_REGION
+ data type is used.
+ <LI> The fifth argument is a dataspace identifier of the referenced dataset.
+</UL>
+</UL>
+<A NAME="fc1">
+<H3><U>File Contents</U></H3>
+The contents of the file "trefer2.h5" created by this program are as follows:
+
+<PRE>
+HDF5 "trefer2.h5" {
+GROUP "/" {
+ DATASET "Dataset1" {
+ DATATYPE { H5T_REFERENCE }
+ DATASPACE { SIMPLE ( 4 ) / ( 4 ) }
+ DATA {
+ DATASET 0:744 {(2,2)-(7,7)}, DATASET 0:744 {(6,9), (2,2), (8,4), (1,6),
+ (2,8), (3,2), (0,4), (9,0), (7,1), (3,3)}, NULL, NULL
+ }
+ }
+ DATASET "Dataset2" {
+ DATATYPE { H5T_STD_U8LE }
+ DATASPACE { SIMPLE ( 10, 10 ) / ( 10, 10 ) }
+ DATA {
+ 0, 3, 6, 9, 12, 15, 18, 21, 24, 27,
+ 30, 33, 36, 39, 42, 45, 48, 51, 54, 57,
+ 60, 63, 66, 69, 72, 75, 78, 81, 84, 87,
+ 90, 93, 96, 99, 102, 105, 108, 111, 114, 117,
+ 120, 123, 126, 129, 132, 135, 138, 141, 144, 147,
+ 150, 153, 156, 159, 162, 165, 168, 171, 174, 177,
+ 180, 183, 186, 189, 192, 195, 198, 201, 204, 207,
+ 210, 213, 216, 219, 222, 225, 228, 231, 234, 237,
+ 240, 243, 246, 249, 252, 255, 255, 255, 255, 255,
+ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255
+ }
+ }
+}
+}
+</PRE>
+Notice how raw data of the dataset with the dataset regions is displayed.
+Each element of the raw data consists of a reference to the dataset
+(DATASET number1:number2) and its selected region.
+If the selection is a hyperslab, the corner coordinates of the hyperslab
+are displayed.
+For the point selection, the coordinates of each point are displayed.
+Since only two selections were stored, the third and fourth elements of the
+dataset "Dataset1" are set to NULL. This was done by the buffer
+inizialization in the program.
+
+<A NAME="def2">
+<H2>Reading References to Dataset Regions</H2>
+
+The following steps are involved in reading references to the dataset
+regions and referenced dataset regions (selections).
+<OL>
+<LI> Open and read the dataset containing references to the dataset regions.
+ The data type H5T_STD_REF_DSETREG must be used during read operation.
+<P>
+<LI>Use H5Rdereference to obtain the dataset identifier from the read
+ dataset region reference.
+ <PRE> <B>OR</B>
+ </PRE>
+ Use H5Rget_region to obtain the dataspace identifier for the dataset
+ containing the selection from the read dataset region reference.
+<P>
+<LI> With the dataspace identifier, the H5S interface functions,
+ H5Sget_select_*, can be used to obtain information about the
+ selection.
+<P>
+<LI> Close all objects when they are no longer needed.
+</OL>
+
+<H2> Programming Example</H2>
+<A NAME="desc2">
+<H3><U>Description</U></H3>
+The following example reads a dataset containing dataset region references.
+It reads data from the dereferenced dataset and displays the number of
+elements and raw data. Then it reads two selections:
+hyperslab and point. The program queries a number of points in the
+hyperslab and the coordinates and displays them. Then it queries a number of
+selected points and their coordinates and displays the information.<BR>
+[ <A HREF="examples/h5_ref2regr.c">Download h5_ref2regr.c</A> ]
+<PRE>
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+
+#include &lt;stdlib.h&gt;
+#include &lt;hdf5.h&gt;
+
+#define FILE2 "trefer2.h5"
+#define NPOINTS 10
+
+/* 1-D dataset with fixed dimensions */
+#define SPACE1_NAME "Space1"
+#define SPACE1_RANK 1
+#define SPACE1_DIM1 4
+
+/* 2-D dataset with fixed dimensions */
+#define SPACE2_NAME "Space2"
+#define SPACE2_RANK 2
+#define SPACE2_DIM1 10
+#define SPACE2_DIM2 10
+
+int
+main(void)
+{
+ hid_t fid1; /* HDF5 File IDs */
+ hid_t dset1, /* Dataset ID */
+ dset2; /* Dereferenced dataset ID */
+ hid_t sid1, /* Dataspace ID #1 */
+ sid2; /* Dataspace ID #2 */
+ hsize_t * coords; /* Coordinate buffer */
+ hsize_t low[SPACE2_RANK]; /* Selection bounds */
+ hsize_t high[SPACE2_RANK]; /* Selection bounds */
+ hdset_reg_ref_t *rbuf; /* buffer to to read disk */
+ int *drbuf; /* Buffer for reading numeric data from disk */
+ int i, j; /* counting variables */
+ herr_t ret; /* Generic return value */
+
+ /* Output message about test being performed */
+
+ /* Allocate write & read buffers */
+ rbuf=malloc(sizeof(hdset_reg_ref_t)*SPACE1_DIM1);
+ drbuf=calloc(sizeof(int),SPACE2_DIM1*SPACE2_DIM2);
+
+ /* Open the file */
+ fid1 = H5Fopen(FILE2, H5F_ACC_RDWR, H5P_DEFAULT);
+
+ /* Open the dataset */
+ dset1=H5Dopen(fid1,"/Dataset1");
+
+ /* Read selection from disk */
+ ret=H5Dread(dset1,H5T_STD_REF_DSETREG,H5S_ALL,H5S_ALL,H5P_DEFAULT,rbuf);
+
+ /* Try to open objects */
+ dset2 = H5Rdereference(dset1,H5R_DATASET_REGION,&rbuf[0]);
+
+ /* Check information in referenced dataset */
+ sid1 = H5Dget_space(dset2);
+
+ ret=H5Sget_simple_extent_npoints(sid1);
+ printf(" Number of elements in the dataset is : %d\n",ret);
+
+ /* Read from disk */
+ ret=H5Dread(dset2,H5T_NATIVE_INT,H5S_ALL,H5S_ALL,H5P_DEFAULT,drbuf);
+
+ for(i=0; i &lt; SPACE2_DIM1; i++) {
+ for (j=0; j &lt; SPACE2_DIM2; j++) printf (" %d ", drbuf[i*SPACE2_DIM2+j]);
+ printf("\n"); }
+
+ /* Get the hyperslab selection */
+ sid2=H5Rget_region(dset1,H5R_DATASET_REGION,&rbuf[0]);
+
+ /* Verify correct hyperslab selected */
+ ret = H5Sget_select_npoints(sid2);
+ printf(" Number of elements in the hyperslab is : %d \n", ret);
+ ret = H5Sget_select_hyper_nblocks(sid2);
+ coords=malloc(ret*SPACE2_RANK*sizeof(hsize_t)*2); /* allocate space for the hyperslab blocks */
+ ret = H5Sget_select_hyper_blocklist(sid2,0,ret,coords);
+ printf(" Hyperslab coordinates are : \n");
+ printf (" ( %lu , %lu ) ( %lu , %lu ) \n", \
+(unsigned long)coords[0],(unsigned long)coords[1],(unsigned long)coords[2],(unsigned long)coords[3]);
+ free(coords);
+ ret = H5Sget_select_bounds(sid2,low,high);
+
+ /* Close region space */
+ ret = H5Sclose(sid2);
+
+ /* Get the element selection */
+ sid2=H5Rget_region(dset1,H5R_DATASET_REGION,&rbuf[1]);
+
+ /* Verify correct elements selected */
+ ret = H5Sget_select_elem_npoints(sid2);
+ printf(" Number of selected elements is : %d\n", ret);
+
+ /* Allocate space for the element points */
+ coords= malloc(ret*SPACE2_RANK*sizeof(hsize_t));
+ ret = H5Sget_select_elem_pointlist(sid2,0,ret,coords);
+ printf(" Coordinates of selected elements are : \n");
+ for (i=0; i &lt; 2*NPOINTS; i=i+2)
+ printf(" ( %lu , %lu ) \n", (unsigned long)coords[i],(unsigned long)coords[i+1]);
+
+ free(coords);
+ ret = H5Sget_select_bounds(sid2,low,high);
+
+ /* Close region space */
+ ret = H5Sclose(sid2);
+
+ /* Close first space */
+ ret = H5Sclose(sid1);
+
+ /* Close dereferenced Dataset */
+ ret = H5Dclose(dset2);
+
+ /* Close Dataset */
+ ret = H5Dclose(dset1);
+
+ /* Close file */
+ ret = H5Fclose(fid1);
+
+ /* Free memory buffers */
+ free(rbuf);
+ free(drbuf);
+ return 0;
+}
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+</PRE>
+Output of this program is :
+<PRE>
+
+ Number of elements in the dataset is : 100
+ 0 3 6 9 12 15 18 21 24 27
+ 30 33 36 39 42 45 48 51 54 57
+ 60 63 66 69 72 75 78 81 84 87
+ 90 93 96 99 102 105 108 111 114 117
+ 120 123 126 129 132 135 138 141 144 147
+ 150 153 156 159 162 165 168 171 174 177
+ 180 183 186 189 192 195 198 201 204 207
+ 210 213 216 219 222 225 228 231 234 237
+ 240 243 246 249 252 255 255 255 255 255
+ 255 255 255 255 255 255 255 255 255 255
+ Number of elements in the hyperslab is : 36
+ Hyperslab coordinates are :
+ ( 2 , 2 ) ( 7 , 7 )
+ Number of selected elements is : 10
+ Coordinates of selected elements are :
+ ( 6 , 9 )
+ ( 2 , 2 )
+ ( 8 , 4 )
+ ( 1 , 6 )
+ ( 2 , 8 )
+ ( 3 , 2 )
+ ( 0 , 4 )
+ ( 9 , 0 )
+ ( 7 , 1 )
+ ( 3 , 3 )
+
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+</PRE>
+<A NAME="rem2">
+<H3><U>Remarks</U></H3>
+<UL>
+<LI> The dataset with the region references was read by H5Dread with
+ the H5T_STD_REF_DSETREG data type specified.
+<P>
+<LI> The read reference can be used to obtain the dataset identifier as we
+ did with the following call:
+<PRE>
+ dset2 = H5Rdereference (dset1,H5R_DATASET_REGION,&rbuf[0]);
+</PRE>
+ or to obtain spacial information ( dataspace and selection ) with the call
+ to H5Rget_region:
+<PRE>
+ sid2=H5Rget_region(dset1,H5R_DATASET_REGION,&rbuf[0]);
+</PRE>
+ The reference to the dataset region has information for both the dataset
+ itself and its selection. In both functions:
+<UL>
+ <LI> The first parameter is an identifier of the dataset with the region
+ references.
+ <LI> The second parameter specifies the type of reference stored. In
+ this example a reference to the dataset region is stored.
+ <LI> The third parameter is a buffer containing the reference of the
+ specified type.
+</UL>
+<P>
+<LI> This example introduces several H5Sget_select* functions used to obtain
+ information about selections:
+
+<UL>
+ <B>H5Sget_select_npoints:</B> returns the number of elements in the
+ hyperslab<BR>
+ <B>H5Sget_select_hyper_nblocks:</B> returns the number of blocks in
+ the hyperslab<BR>
+ <B>H5Sget_select_blocklist:</B> returns the "lower left" and "upper right"
+ coordinates of the blocks in the hyperslab selection<BR>
+ <B>H5Sget_select_bounds:</B> returns the coordinates of the "minimal"
+ block containing a hyperslab selection<BR>
+ <B>H5Sget_select_elem_npoints:</B> returns the number of points in the
+ element selection<BR>
+ <B>H5Sget_select_elem_points:</B> returns the coordinates of the element
+ selection
+</UL>
+</UL>
+
+
+<!-- BEGIN FOOTER INFO -->
+
+<P><hr noshade size=1>
+<font face="arial,helvetica" size="-1">
+ <a href="http://www.ncsa.uiuc.edu/"><img border=0
+ src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+ width=78 height=27 alt="NCSA"><br>
+ The National Center for Supercomputing Applications</A><br>
+ <a href="http://www.uiuc.edu/">University of Illinois
+ at Urbana-Champaign</a><br>
+ <br>
+<!-- <A HREF="helpdesk.mail.html"> -->
+<A HREF="mailto:hdfhelp@ncsa.uiuc.edu">
+hdfhelp@ncsa.uiuc.edu</A>
+<BR> <H6>Last Modified: August 27, 1999</H6><BR>
+<!-- modified by Barbara Jones - bljones@ncsa.uiuc.edu -->
+</FONT>
+<BR>
+<!-- <A HREF="mailto:hdfhelp@ncsa.uiuc.edu"> -->
+
+</BODY>
+</HTML>
+
+
+
diff --git a/doc/html/Tutor/select.html b/doc/html/Tutor/select.html
new file mode 100644
index 0000000..76ef846
--- /dev/null
+++ b/doc/html/Tutor/select.html
@@ -0,0 +1,452 @@
+<HTML><HEAD>
+<TITLE>HDF5 Tutorial - Selections using H5Sselect_hyperslab
+</TITLE>
+</HEAD>
+
+<body bgcolor="#ffffff">
+
+<!-- BEGIN MAIN BODY -->
+
+<A HREF="http://www.ncsa.uiuc.edu/"><img border=0
+src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+width=78 height=27 alt="NCSA"><P></A>
+
+ [ <A HREF="title.html"><I>HDF5 Tutorial Top</I></A> ]
+<H1>
+<BIG><BIG><BIG><FONT COLOR="#c101cd">Selections using H5Sselect_hyperslab</FONT>
+</BIG></BIG></BIG></H1>
+
+<hr noshade size=1>
+
+<BODY>
+<H2>Contents:</H2>
+<UL>
+ <LI><A HREF="#def">Selecting a Portion of a Dataspace</A>
+ <LI>Programming Example
+<UL>
+ <LI> <A HREF="#desc">Description</A>
+ <LI> <A HREF="#rem">Remarks</A>
+<!--
+ <LI> <A HREF="#fc">File Contents</A>
+-->
+</UL>
+</UL>
+<HR>
+<A NAME="def">
+<H2>Selecting a Portion of a Dataspace</H2>
+Hyperslabs are portions of datasets. A hyperslab selection can be a logically contiguous collection of points in a dataspace, or it
+can be a regular pattern of points or blocks in a dataspace.
+You can select a hyperslab to write to/read from with the function
+H5Sselect_hyperslab.
+<P>
+<H2> Programming Example</H2>
+<A NAME="desc">
+<H3><U>Description</U></H3>
+This example creates a 5 x 6 integer array in a
+file called sds.h5. It selects a 3 x 4 hyperslab from the dataset,
+as follows (Dimension 0 is offset by 1 and Dimension 1 is offset by 2):
+<P>
+<TABLE BORDER CELLSPACING=1 CELLPADDING=7 WIDTH=172>
+<TR><TD WIDTH="17%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="17%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="17%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="17%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="17%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="17%" VALIGN="TOP">&nbsp;</TD>
+</TR>
+<TR><TD WIDTH="17%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="17%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="17%" VALIGN="TOP">
+<FONT SIZE=2><P> X</FONT></TD>
+<TD WIDTH="17%" VALIGN="TOP">
+<FONT SIZE=2><P> X</FONT></TD>
+<TD WIDTH="17%" VALIGN="TOP">
+<FONT SIZE=2><P> X</FONT></TD>
+<TD WIDTH="17%" VALIGN="TOP">
+<FONT SIZE=2><P> X</FONT></TD>
+</TR>
+<TR><TD WIDTH="17%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="17%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="17%" VALIGN="TOP">
+<FONT SIZE=2><P> X</FONT></TD>
+<TD WIDTH="17%" VALIGN="TOP">
+<FONT SIZE=2><P> X</FONT></TD>
+<TD WIDTH="17%" VALIGN="TOP">
+<FONT SIZE=2><P> X</FONT></TD>
+<TD WIDTH="17%" VALIGN="TOP">
+<FONT SIZE=2><P> X</FONT></TD>
+</TR>
+<TR><TD WIDTH="17%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="17%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="17%" VALIGN="TOP">
+<FONT SIZE=2><P> X</FONT></TD>
+<TD WIDTH="17%" VALIGN="TOP">
+<FONT SIZE=2><P> X</FONT></TD>
+<TD WIDTH="17%" VALIGN="TOP">
+<FONT SIZE=2><P> X</FONT></TD>
+<TD WIDTH="17%" VALIGN="TOP">
+<FONT SIZE=2><P> X</FONT></TD>
+</TR>
+<TR><TD WIDTH="17%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="17%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="17%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="17%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="17%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="17%" VALIGN="TOP">&nbsp;</TD>
+</TR>
+</TABLE>
+<P>
+Then it reads the hyperslab from this file into a 2-dimensional plane
+(size 7 x 7) of a 3-dimensional array (size 7 x 7 x 3), as
+follows (with Dimension 0 offset by 3):
+<P>
+<TABLE BORDER CELLSPACING=1 CELLPADDING=7 WIDTH=201>
+<TR><TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+</TR>
+<TR><TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+</TR>
+<TR><TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+</TR>
+<TR><TD WIDTH="14%" VALIGN="TOP">
+<FONT SIZE=2><P> X</FONT></TD>
+<TD WIDTH="14%" VALIGN="TOP">
+<FONT SIZE=2><P> X</FONT></TD>
+<TD WIDTH="14%" VALIGN="TOP">
+<FONT SIZE=2><P> X</FONT></TD>
+<TD WIDTH="14%" VALIGN="TOP">
+<FONT SIZE=2><P> X</FONT></TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+</TR>
+<TR><TD WIDTH="14%" VALIGN="TOP">
+<FONT SIZE=2><P> X</FONT></TD>
+<TD WIDTH="14%" VALIGN="TOP">
+<FONT SIZE=2><P> X</FONT></TD>
+<TD WIDTH="14%" VALIGN="TOP">
+<FONT SIZE=2><P> X</FONT></TD>
+<TD WIDTH="14%" VALIGN="TOP">
+<FONT SIZE=2><P> X</FONT></TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+</TR>
+<TR><TD WIDTH="14%" VALIGN="TOP">
+<FONT SIZE=2><P> X</FONT></TD>
+<TD WIDTH="14%" VALIGN="TOP">
+<FONT SIZE=2><P> X</FONT></TD>
+<TD WIDTH="14%" VALIGN="TOP">
+<FONT SIZE=2><P> X</FONT></TD>
+<TD WIDTH="14%" VALIGN="TOP">
+<FONT SIZE=2><P> X</FONT></TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+</TR>
+<TR><TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+<TD WIDTH="14%" VALIGN="TOP">&nbsp;</TD>
+</TR>
+</TABLE>
+<P>
+[ <A HREF="examples/h5_hyperslab.c">Download h5_hyperslab.c</A> ]
+<PRE>
+
+/************************************************************
+
+ This example shows how to write and read a hyperslab. It
+ is derived from the h5_read.c and h5_write.c examples in
+ the "Introduction to HDF5".
+
+ ************************************************************/
+
+#include "hdf5.h"
+
+#define FILE "sds.h5"
+#define DATASETNAME "IntArray"
+#define NX_SUB 3 /* hyperslab dimensions */
+#define NY_SUB 4
+#define NX 7 /* output buffer dimensions */
+#define NY 7
+#define NZ 3
+#define RANK 2
+#define RANK_OUT 3
+
+#define X 5 /* dataset dimensions */
+#define Y 6
+
+int
+main (void)
+{
+ hsize_t dimsf[2]; /* dataset dimensions */
+ int data[X][Y]; /* data to write */
+
+ /*
+ * Data and output buffer initialization.
+ */
+ hid_t file, dataset; /* handles */
+ hid_t dataspace;
+ hid_t memspace;
+ hsize_t dimsm[3]; /* memory space dimensions */
+ hsize_t dims_out[2]; /* dataset dimensions */
+ herr_t status;
+
+ int data_out[NX][NY][NZ ]; /* output buffer */
+
+ hsize_t count[2]; /* size of the hyperslab in the file */
+ hssize_t offset[2]; /* hyperslab offset in the file */
+ hsize_t count_out[3]; /* size of the hyperslab in memory */
+ hssize_t offset_out[3]; /* hyperslab offset in memory */
+ int i, j, k, status_n, rank;
+
+
+
+/*********************************************************
+ This writes data to the HDF5 file.
+ *********************************************************/
+
+ /*
+ * Data and output buffer initialization.
+ */
+ for (j = 0; j < X; j++) {
+ for (i = 0; i < Y; i++)
+ data[j][i] = i + j;
+ }
+ /*
+ * 0 1 2 3 4 5
+ * 1 2 3 4 5 6
+ * 2 3 4 5 6 7
+ * 3 4 5 6 7 8
+ * 4 5 6 7 8 9
+ */
+
+ /*
+ * Create a new file using H5F_ACC_TRUNC access,
+ * the default file creation properties, and the default file
+ * access properties.
+ */
+ file = H5Fcreate (FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+
+ /*
+ * Describe the size of the array and create the data space for fixed
+ * size dataset.
+ */
+ dimsf[0] = X;
+ dimsf[1] = Y;
+ dataspace = H5Screate_simple (RANK, dimsf, NULL);
+
+ /*
+ * Create a new dataset within the file using defined dataspace and
+ * default dataset creation properties.
+ */
+ dataset = H5Dcreate (file, DATASETNAME, H5T_STD_I32BE, dataspace,
+ H5P_DEFAULT);
+
+ /*
+ * Write the data to the dataset using default transfer properties.
+ */
+ status = H5Dwrite (dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL,
+ H5P_DEFAULT, data);
+
+ /*
+ * Close/release resources.
+ */
+ H5Sclose (dataspace);
+ H5Dclose (dataset);
+ H5Fclose (file);
+
+
+/*************************************************************
+
+ This reads the hyperslab from the sds.h5 file just
+ created, into a 2-dimensional plane of the 3-dimensional
+ array.
+
+ ************************************************************/
+
+ for (j = 0; j < NX; j++) {
+ for (i = 0; i < NY; i++) {
+ for (k = 0; k < NZ ; k++)
+ data_out[j][i][k] = 0;
+ }
+ }
+
+ /*
+ * Open the file and the dataset.
+ */
+ file = H5Fopen (FILE, H5F_ACC_RDONLY, H5P_DEFAULT);
+ dataset = H5Dopen (file, DATASETNAME);
+
+ dataspace = H5Dget_space (dataset); /* dataspace handle */
+ rank = H5Sget_simple_extent_ndims (dataspace);
+ status_n = H5Sget_simple_extent_dims (dataspace, dims_out, NULL);
+ printf("\nRank: %d\nDimensions: %lu x %lu \n", rank,
+ (unsigned long)(dims_out[0]), (unsigned long)(dims_out[1]));
+
+ /*
+ * Define hyperslab in the dataset.
+ */
+ offset[0] = 1;
+ offset[1] = 2;
+ count[0] = NX_SUB;
+ count[1] = NY_SUB;
+ status = H5Sselect_hyperslab (dataspace, H5S_SELECT_SET, offset, NULL,
+ count, NULL);
+
+ /*
+ * Define the memory dataspace.
+ */
+ dimsm[0] = NX;
+ dimsm[1] = NY;
+ dimsm[2] = NZ;
+ memspace = H5Screate_simple (RANK_OUT, dimsm, NULL);
+
+ /*
+ * Define memory hyperslab.
+ */
+ offset_out[0] = 3;
+ offset_out[1] = 0;
+ offset_out[2] = 0;
+ count_out[0] = NX_SUB;
+ count_out[1] = NY_SUB;
+ count_out[2] = 1;
+ status = H5Sselect_hyperslab (memspace, H5S_SELECT_SET, offset_out, NULL,
+ count_out, NULL);
+
+ /*
+ * Read data from hyperslab in the file into the hyperslab in
+ * memory and display.
+ */
+ status = H5Dread (dataset, H5T_NATIVE_INT, memspace, dataspace,
+ H5P_DEFAULT, data_out);
+ printf ("Data:\n ");
+ for (j = 0; j < NX; j++) {
+ for (i = 0; i < NY; i++) printf("%d ", data_out[j][i][0]);
+ printf("\n ");
+ }
+ printf("\n");
+ /*
+ * 0 0 0 0 0 0 0
+ * 0 0 0 0 0 0 0
+ * 0 0 0 0 0 0 0
+ * 3 4 5 6 0 0 0
+ * 4 5 6 7 0 0 0
+ * 5 6 7 8 0 0 0
+ * 0 0 0 0 0 0 0
+ */
+
+ /*
+ * Close and release resources.
+ */
+ H5Dclose (dataset);
+ H5Sclose (dataspace);
+ H5Sclose (memspace);
+ H5Fclose (file);
+
+}
+</PRE>
+<A NAME="rem">
+<H3><U>Remarks</U></H3>
+<UL>
+<LI>H5Sselect_hyperslab selects a hyperslab region to add to the current
+selected region for a specified dataspace.
+<PRE>
+ herr_t H5Sselect_hyperslab (hid_t space_id, H5S_seloper_t op,
+ const hssize_t *start, const hsize_t *stride,
+ const hsize_t *count, const hsize_t *block )
+</PRE>
+<UL>
+<LI>The first parameter, <I>space_id</I>, is the dataspace identifier for the
+ specified dataspace.
+<LI>The second parameter, <I>op</I>, can only be set to H5S_SELECT_SET
+ in the current release. It replaces the existing selection with the
+ parameters from this call. Overlapping blocks are not supported.
+<LI>The <I>start</I> array determines the starting coordinates of the hyperslab to select.
+<LI>The <I>stride</I> array indicates which elements along a dimension are to
+be selected.
+<LI>The <I>count</I> array determines how many positions to select from the
+ dataspace in each dimension.
+<LI>The <I>block</I> array determines the size of the element block selected
+ by the dataspace.
+</UL>
+<P>
+The <I>start</I>, <I>stride</I>, <I>count</I>, and <I>block</I> arrays must
+be the same size as the rank of the dataspace.
+<P>
+<LI>This example introduces the following H5Dget_* functions:
+<UL>
+ <B>H5Dget_space:</B> returns an identifier for a copy of the dataspace
+ of a dataset.<BR>
+ <B>H5Dget_type:</B> returns an identifier for a copy of the data type
+ of a dataset.<BR>
+</UL>
+<P>
+<LI>This example introduces the following H5Sget_* functions used to
+obtain information about selections:
+<UL>
+ <B>H5Sget_simple_extent_dims:</B> returns the size and maximum sizes
+ of each dimension of a dataspace.<BR>
+ <B>H5Sget_simple_extent_ndims:</B> determines the dimensionality
+ (or rank) of a dataspace. <BR>
+</UL>
+</UL>
+</UL>
+</PRE>
+<P>
+
+<!--
+<A NAME="fc">
+<H3><U>File Contents</U></H3>
+-->
+
+
+
+
+
+<!-- BEGIN FOOTER INFO -->
+
+<P><hr noshade size=1>
+<font face="arial,helvetica" size="-1">
+ <a href="http://www.ncsa.uiuc.edu/"><img border=0
+ src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+ width=78 height=27 alt="NCSA"><br>
+ The National Center for Supercomputing Applications</A><br>
+ <a href="http://www.uiuc.edu/">University of Illinois
+ at Urbana-Champaign</a><br>
+ <br>
+<!-- <A HREF="helpdesk.mail.html"> -->
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+hdfhelp@ncsa.uiuc.edu</A>
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+</FONT>
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+
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+</HTML>
+
+
+
diff --git a/doc/html/Tutor/selectc.html b/doc/html/Tutor/selectc.html
new file mode 100644
index 0000000..e01d9db
--- /dev/null
+++ b/doc/html/Tutor/selectc.html
@@ -0,0 +1,296 @@
+<HTML><HEAD>
+<TITLE>HDF5 Tutorial - Selections using H5Sselect_elements and H5Scopy
+</TITLE>
+</HEAD>
+
+<body bgcolor="#ffffff">
+
+<!-- BEGIN MAIN BODY -->
+
+<A HREF="http://www.ncsa.uiuc.edu/"><img border=0
+src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+width=78 height=27 alt="NCSA"><P></A>
+
+ [ <A HREF="title.html"><I>HDF5 Tutorial Top</I></A> ]
+<H1>
+<BIG><BIG><BIG><FONT COLOR="#c101cd">Selections using H5Sselect_elements and H5SCopy</FONT>
+</BIG></BIG></BIG></H1>
+
+<hr noshade size=1>
+
+<BODY>
+<H2>Contents:</H2>
+<UL>
+ <LI> <A HREF="#def">Selecting Independent Points and Copying a Dataspace</A>
+ <LI> Programming Example
+ <UL>
+ <LI> <A HREF="#desc">Description</A>
+ <LI> <A HREF="#rem">Remarks</A>
+ <LI> <A HREF="#fc">File Contents</A>
+ </UL>
+</UL>
+<HR>
+<A NAME="def">
+<H2>Selecting Independent Points and Copying a Dataspace</h2>
+You can select independent points to read or write to in a
+dataspace by use of the H5Sselect_elements function.
+<P>
+The H5Scopy function allows you to make an exact copy of a dataspace,
+which can help cut down on the number of function calls needed when
+selecting a dataspace.
+<P>
+<H2> Programming Example</H2>
+<A NAME="desc">
+<H3><U>Description</U></H3>
+This example shows you how to use H5Sselect_elements to select individual
+points in a dataset and how to use H5Scopy to make a copy of a dataspace.
+
+[ <A HREF="examples/h5_copy.c">Download h5_copy.c</A> ]
+<PRE>
+/***********************************************************************/
+/* */
+/* PROGRAM: h5_copy.c */
+/* PURPOSE: Shows how to use the H5SCOPY function. */
+/* DESCRIPTION: */
+/* This program creates two files, copy1.h5, and copy2.h5. */
+/* In copy1.h5, it creates a 3x4 dataset called 'Copy1', */
+/* and write 0's to this dataset. */
+/* In copy2.h5, it create a 3x4 dataset called 'Copy2', */
+/* and write 1's to this dataset. */
+/* It closes both files, reopens both files, selects two */
+/* points in copy1.h5 and writes values to them. Then it */
+/* does an H5Scopy from the first file to the second, and */
+/* writes the values to copy2.h5. It then closes the */
+/* files, reopens them, and prints the contents of the */
+/* two datasets. */
+/* */
+/***********************************************************************/
+
+#include "hdf5.h"
+#define FILE1 "copy1.h5"
+#define FILE2 "copy2.h5"
+
+#define RANK 2
+#define DIM1 3
+#define DIM2 4
+#define NUMP 2
+
+int main (void)
+{
+ hid_t file1, file2, dataset1, dataset2;
+ hid_t mid1, mid2, fid1, fid2;
+ hsize_t fdim[] = {DIM1, DIM2};
+ hsize_t mdim[] = {DIM1, DIM2};
+ hsize_t start[2], stride[2], count[2], block[2];
+ int buf1[DIM1][DIM2];
+ int buf2[DIM1][DIM2];
+ int bufnew[DIM1][DIM2];
+ int val[] = {53, 59};
+ hsize_t marray[] = {2};
+ hssize_t coord[NUMP][RANK];
+ herr_t ret;
+ uint i, j;
+
+/***********************************************************************/
+/* */
+/* Create two files containing identical datasets. Write 0's to one */
+/* and 1's to the other. */
+/* */
+/***********************************************************************/
+
+ for ( i = 0; i &lt DIM1; i++ )
+ for ( j = 0; j &lt DIM2; j++ )
+ buf1[i][j] = 0;
+
+ for ( i = 0; i &lt DIM1; i++ )
+ for ( j = 0; j &lt DIM2; j++ )
+ buf2[i][j] = 1;
+
+ file1 = H5Fcreate(FILE1, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+ file2 = H5Fcreate(FILE2, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+
+ fid1 = H5Screate_simple (RANK, fdim, NULL);
+ fid2 = H5Screate_simple (RANK, fdim, NULL);
+
+ dataset1 = H5Dcreate (file1, "Copy1", H5T_NATIVE_INT, fid1, H5P_DEFAULT);
+ dataset2 = H5Dcreate (file2, "Copy2", H5T_NATIVE_INT, fid2, H5P_DEFAULT);
+
+ ret = H5Dwrite(dataset1, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf1);
+ ret = H5Dwrite(dataset2, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf2);
+
+ ret = H5Dclose (dataset1);
+ ret = H5Dclose (dataset2);
+
+ ret = H5Sclose (fid1);
+ ret = H5Sclose (fid2);
+
+ ret = H5Fclose (file1);
+ ret = H5Fclose (file2);
+
+/***********************************************************************/
+/* */
+/* Open the two files. Select two points in one file, write values to */
+/* those point locations, then do H5Scopy and write the values to the */
+/* other file. Close files. */
+/* */
+/***********************************************************************/
+
+ file1 = H5Fopen (FILE1, H5F_ACC_RDWR, H5P_DEFAULT);
+ file2 = H5Fopen (FILE2, H5F_ACC_RDWR, H5P_DEFAULT);
+ dataset1 = H5Dopen (file1, "Copy1");
+ dataset2 = H5Dopen (file2, "Copy2");
+ fid1 = H5Dget_space (dataset1);
+ mid1 = H5Screate_simple(1, marray, NULL);
+ coord[0][0] = 0; coord[0][1] = 3;
+ coord[1][0] = 0; coord[1][1] = 1;
+
+ ret = H5Sselect_elements (fid1, H5S_SELECT_SET, NUMP, (const hssize_t **)coord);
+
+ ret = H5Dwrite (dataset1, H5T_NATIVE_INT, mid1, fid1, H5P_DEFAULT, val);
+
+ fid2 = H5Scopy (fid1);
+
+ ret = H5Dwrite (dataset2, H5T_NATIVE_INT, mid1, fid2, H5P_DEFAULT, val);
+
+ ret = H5Dclose (dataset1);
+ ret = H5Dclose (dataset2);
+ ret = H5Sclose (fid1);
+ ret = H5Sclose (fid2);
+ ret = H5Fclose (file1);
+ ret = H5Fclose (file2);
+ ret = H5Sclose (mid1);
+
+/***********************************************************************/
+/* */
+/* Open both files and print the contents of the datasets. */
+/* */
+/***********************************************************************/
+
+ file1 = H5Fopen (FILE1, H5F_ACC_RDWR, H5P_DEFAULT);
+ file2 = H5Fopen (FILE2, H5F_ACC_RDWR, H5P_DEFAULT);
+ dataset1 = H5Dopen (file1, "Copy1");
+ dataset2 = H5Dopen (file2, "Copy2");
+
+ ret = H5Dread (dataset1, H5T_NATIVE_INT, H5S_ALL, H5S_ALL,
+ H5P_DEFAULT, bufnew);
+
+ printf ("\nDataset 'Copy1' in file 'copy1.h5' contains: \n");
+ for (i=0;i&lt;DIM1; i++) {
+ for (j=0;j&lt;DIM2;j++) printf ("%3d ", bufnew[i][j]);
+ printf("\n");
+ }
+
+ printf ("\nDataset 'Copy2' in file 'copy2.h5' contains: \n");
+
+ ret = H5Dread (dataset2, H5T_NATIVE_INT, H5S_ALL, H5S_ALL,
+ H5P_DEFAULT, bufnew);
+
+ for (i=0;i&lt;DIM1; i++) {
+ for (j=0;j&lt;DIM2;j++) printf ("%3d ", bufnew[i][j]);
+ printf("\n");
+ }
+ ret = H5Dclose (dataset1);
+ ret = H5Dclose (dataset2);
+ ret = H5Fclose (file1);
+ ret = H5Fclose (file2);
+
+}
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+</PRE>
+
+<A NAME="rem">
+<H3><U>Remarks</U></H3>
+<UL>
+<LI>H5Sselect_elements selects array elements to be included in the
+selection for a dataspace:
+<PRE>
+ herr_t H5Sselect_elements (hid_t space_id, H5S_seloper_t op,
+ size_t num_elem, const hssize_t **coord )
+</PRE>
+<UL>
+<LI>The <I>space_id</I> parameter is the dataspace identifier.<BR>
+<LI>The <I>op</I> parameter currently can only be set to H5S_SELECT_SET and
+specifies to replace the existing selection with the parameters from this
+call.
+<LI>The <I>coord</I> array is a two-dimensional array of size 'dataspace rank'
+by the number of elements to be selected, <I>num_elem</I>.<BR>
+</UL>
+<P>
+<LI>H5Scopy creates an exact copy of a dataspace:
+<PRE>
+ hid_t H5Scopy(hid_t space_id )
+</PRE>
+<UL>
+<LI>The <I>space_id</I> parameter is the dataspace identifier to copy.
+</UL>
+</UL>
+</UL>
+<P>
+
+<A NAME="fc">
+<H3><U>File Contents</U></H3>
+
+Following is the DDL for <I>copy1.h5</I> and <I>copy2.h5</I>, as viewed with
+the commands "h5dump copy1.h5" and "h5dump copy2.h5".
+<P>
+<B>Fig. S.1</B> &nbsp; <I>'copy1.h5' in DDL</I>
+<PRE>
+HDF5 "copy1.h5" {
+GROUP "/" {
+ DATASET "Copy1" {
+ DATATYPE { H5T_STD_I32BE }
+ DATASPACE { SIMPLE ( 3, 4 ) / ( 3, 4 ) }
+ DATA {
+ 0, 59, 0, 53,
+ 0, 0, 0, 0,
+ 0, 0, 0, 0
+ }
+ }
+}
+}
+</PRE>
+<B>Fig. S.2</B> &nbsp; <I>'copy2.h5' in DDL</I>
+<PRE>
+HDF5 "copy2.h5" {
+GROUP "/" {
+ DATASET "Copy2" {
+ DATATYPE { H5T_STD_I32BE }
+ DATASPACE { SIMPLE ( 3, 4 ) / ( 3, 4 ) }
+ DATA {
+ 1, 59, 1, 53,
+ 1, 1, 1, 1,
+ 1, 1, 1, 1
+ }
+ }
+}
+}
+
+</PRE>
+
+
+
+<!-- BEGIN FOOTER INFO -->
+
+<P><hr noshade size=1>
+<font face="arial,helvetica" size="-1">
+ <a href="http://www.ncsa.uiuc.edu/"><img border=0
+ src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+ width=78 height=27 alt="NCSA"><br>
+ The National Center for Supercomputing Applications</A><br>
+ <a href="http://www.uiuc.edu/">University of Illinois
+ at Urbana-Champaign</a><br>
+ <br>
+<!-- <A HREF="helpdesk.mail.html"> -->
+<A HREF="mailto:hdfhelp@ncsa.uiuc.edu">
+hdfhelp@ncsa.uiuc.edu</A>
+<BR> <H6>Last Modified: August 27, 1999</H6><BR>
+<!-- modified by Barbara Jones - bljones@ncsa.uiuc.edu -->
+</FONT>
+<BR>
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+
+</BODY>
+</HTML>
+
+
+
diff --git a/doc/html/Tutor/title.html b/doc/html/Tutor/title.html
new file mode 100644
index 0000000..35283b7
--- /dev/null
+++ b/doc/html/Tutor/title.html
@@ -0,0 +1,99 @@
+<HTML><HEAD>
+<TITLE>HDF5 Tutorial
+</TITLE>
+</HEAD>
+
+<body bgcolor="#ffffff">
+
+<!-- BEGIN MAIN BODY -->
+
+<A HREF="http://www.ncsa.uiuc.edu/"><img border=0
+src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+width=78 height=27 alt="NCSA"><P></A>
+
+<h1> <A HREF="http://hdf.ncsa.uiuc.edu/whatishdf5.html">
+<img align=left border=0 src="bighdf2sp.JPG" alt="What is HDF5?"></A>
+<BIG><BIG><BIG>&nbsp;<FONT COLOR="#c101cd">HDF5 Tutorial</FONT>
+</BIG></BIG></BIG></H1>
+
+
+
+<hr noshade size=1>
+
+<!-- The following buttons are for use only when the Tutorial is served from the HDF web server.
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+</CENTER>
+<BR CLEAR=ALL><BR>
+-->
+
+<H2>Contents:</H2>
+<H3>Introductory Topics</H3>
+<OL>
+<LI><A HREF="intro.html">Introduction</A>
+<LI><A HREF="fileorg.html">HDF5 File Organization</A>
+<LI><A HREF="api.html">The HDF5 API</A>
+<LI><A HREF="crtfile.html">Creating an HDF5 File</A>
+<LI><A HREF="crtdat.html">Creating a Dataset</A>
+<LI><A HREF="rdwt.html">Reading from/Writing to a Dataset</A>
+<LI><A HREF="crtatt.html">Creating an Attribute</A>
+<LI><A HREF="crtgrp.html">Creating a Group</A>
+<LI><A HREF="crtgrpar.html">Creating Groups using Absolute/Relative
+Names</A>
+<LI><A HREF="crtgrpd.html">Creating Datasets in Groups</A>
+</OL>
+<UL>
+<A HREF="questions.html">Questions</A><BR>
+<A HREF="answers.html">Answers</A><BR>
+</UL>
+<H3>Advanced Topics</H3>
+<UL>
+<LI><A HREF="compound.html">Compound Data Types</A>
+<LI><A HREF="select.html">Selections using H5Sselect_hyperslab</A>
+<LI><A HREF="selectc.html">Selections using H5Sselect_elements and H5SCopy</A>
+<LI><A HREF="reftoobj.html">References to Objects</A>
+<LI><A HREF="reftoreg.html">References to Dataset Regions</A>
+<LI><A HREF="extend.html">Chunking and Extendible Datasets</A>
+<LI><A HREF="mount.html">Mounting Files</A>
+<LI><A HREF="iterate.html">Group Iteration</A>
+</UL>
+<P>
+<A HREF="util.html">HDF5 Utilities - h5ls/h5dump</A><BR>
+<A HREF="glossary.html">Glossary</A><BR>
+<A HREF="references.html">References</A><BR>
+<A HREF="examples/">Example Programs from this Tutorial</A> <BR>
+</OL>
+
+
+<!-- BEGIN FOOTER INFO -->
+
+<P><hr noshade size=1>
+<font face="arial,helvetica" size="-1">
+ <a href="http://www.ncsa.uiuc.edu/"><img border=0
+ src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+ width=78 height=27 alt="NCSA"><br>
+ The National Center for Supercomputing Applications</A><br>
+ <a href="http://www.uiuc.edu/">University of Illinois
+ at Urbana-Champaign</a><br>
+ <br>
+<!-- <A HREF="helpdesk.mail.html"> -->
+<A HREF="mailto:hdfhelp@ncsa.uiuc.edu">
+hdfhelp@ncsa.uiuc.edu</A>
+<BR> <H6>Last Modified: October 8, 1999</H6><BR>
+<!-- modified by Barbara Jones - bljones@ncsa.uiuc.edu -->
+</FONT>
+<BR>
+<!-- <A HREF="mailto:hdfhelp@ncsa.uiuc.edu"> -->
+
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+</HTML>
+
+
+
diff --git a/doc/html/Tutor/util.html b/doc/html/Tutor/util.html
new file mode 100644
index 0000000..79dbf28
--- /dev/null
+++ b/doc/html/Tutor/util.html
@@ -0,0 +1,89 @@
+<HTML><HEAD>
+<TITLE>HDF5 Tutorial - Utilities (h5dump, h5ls)
+</TITLE>
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+<body bgcolor="#ffffff">
+
+<!-- BEGIN MAIN BODY -->
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+src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+width=78 height=27 alt="NCSA"><P></A>
+
+ [ <A HREF="title.html"><I>HDF5 Tutorial Top</I></A> ]
+<H1>
+<BIG><BIG><BIG><FONT COLOR="#c101cd">Utilities (h5dump, h5ls)</FONT>
+</BIG></BIG></BIG></H1>
+
+<hr noshade size=1>
+
+The h5dump and h5ls utilities can be used to examine the contents of an
+hdf5 file.
+<P>
+<A NAME="dmp">
+<H2>h5dump</H2>
+<PRE>
+h5dump [-h] [-bb] [-header] [-a <names>] [-d &lt;names&gt;] [-g &lt;names&gt;]
+ [-l &lt;names&gt;] [-t &lt;names&gt;] &lt;file&gt;
+
+ -h Print information on this command.
+ -bb Display the content of the boot block. The default is not to display.
+ -header Display header only; no data is displayed.
+ -a &lt;names&gt Display the specified attribute(s).
+ -d &lt;names&gt Display the specified dataset(s).
+ -g &lt;names&gt Display the specified group(s) and all the members.
+ -l &lt;names&gt Displays the value(s) of the specified soft link(s).
+ -t &lt;names&gt Display the specified named data type(s).
+
+ &lt;names&gt; is one or more appropriate object names.
+</PRE>
+<A NAME="ls">
+<H2>h5ls</H2>
+<PRE>
+h5ls [OPTIONS] FILE [OBJECTS...]
+
+ OPTIONS
+ -h, -?, --help Print a usage message and exit
+ -d, --dump Print the values of datasets
+ -f, --full Print full path names instead of base names
+ -l, --label Label members of compound datasets
+ -r, --recursive List all groups recursively, avoiding cycles
+ -s, --string Print 1-byte integer datasets as ASCII
+ -wN, --width=N Set the number of columns of output
+ -v, --verbose Generate more verbose output
+ -V, --version Print version number and exit
+ FILE
+ The file name may include a printf(3C) integer format such as
+ "%05d" to open a file family.
+ OBJECTS
+ The names of zero or more objects about which information should be
+ displayed. If a group is mentioned then information about each of its
+ members is displayed. If no object names are specified then
+ information about all of the objects in the root group is displayed.
+</PRE>
+<!-- BEGIN FOOTER INFO -->
+
+<P><hr noshade size=1>
+<font face="arial,helvetica" size="-1">
+ <a href="http://www.ncsa.uiuc.edu/"><img border=0
+ src="http://www.ncsa.uiuc.edu/Images/NCSAhome/footerlogo.gif"
+ width=78 height=27 alt="NCSA"><br>
+ The National Center for Supercomputing Applications</A><br>
+ <a href="http://www.uiuc.edu/">University of Illinois
+ at Urbana-Champaign</a><br>
+ <br>
+<!-- <A HREF="helpdesk.mail.html"> -->
+<A HREF="mailto:hdfhelp@ncsa.uiuc.edu">
+hdfhelp@ncsa.uiuc.edu</A>
+<BR> <H6>Last Modified: July 30, 1999</H6><BR>
+<!-- modified by Barbara Jones - bljones@ncsa.uiuc.edu -->
+</FONT>
+<BR>
+<!-- <A HREF="mailto:hdfhelp@ncsa.uiuc.edu"> -->
+
+</BODY>
+</HTML>
+
+
+