diff options
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/html/Datasets.html | 12 | ||||
| -rw-r--r-- | doc/html/Groups.html | 7 | ||||
| -rw-r--r-- | doc/html/References.html | 54 |
3 files changed, 38 insertions, 35 deletions
diff --git a/doc/html/Datasets.html b/doc/html/Datasets.html index 16218cc..4520172 100644 --- a/doc/html/Datasets.html +++ b/doc/html/Datasets.html @@ -447,11 +447,15 @@ H5Pset_external (plist, "scan3.data", 0, 16); *<em>name</em>, hid_t <em>type_id</em>, hid_t <em>space_id</em>, hid_t <em>create_plist_id</em>)</code> <dd>A dataset is created by calling <code>H5Dcreate</code> with - a file identifier, a dataset name, a datatype, a data space, - and constant properties. The datatype and data space are the + a file identifier, a dataset name, a datatype, a dataspace, + and constant properties. The datatype and dataspace are the type and space of the dataset as it will exist in the file, - which may be different than in application memory. The - <em>create_plist_id</em> is a <code>H5P_DATASET_CREATE</code> + which may be different than in application memory. + Dataset names within a group must be unique: + <code>H5Dcreate</code> returns an error if a dataset with the + name specified in <code><em>name</em></code> already exists + at the location specified in <code><em>file_id</em></code>. + The <em>create_plist_id</em> is a <code>H5P_DATASET_CREATE</code> property list created with <code>H5Pcreate()</code> and initialized with the various functions described above. <code>H5Dcreate()</code> returns a dataset handle for success diff --git a/doc/html/Groups.html b/doc/html/Groups.html index 8aac8a7..44ca0fb 100644 --- a/doc/html/Groups.html +++ b/doc/html/Groups.html @@ -72,7 +72,7 @@ and a name which exists as a member of some other group. In this way, groups can be linked together to form a directed graph. One particular group is called the <em>Root Group</em> and is - the group to which the HDF5 file boot block points. Its name is + the group to which the HDF5 file super block points. Its name is "/" by convention. The <em>full name</em> of an object is created by joining component names with slashes much like Unix. @@ -181,6 +181,11 @@ </table> </center> + <p>Note, however, that object names within a group must be unique. + For example, <code>H5Dcreate</code> returns an error if a + dataset with the dataset name specified in the parameter list + already exists at the location specified in the parameter list. + <h2>3. Creating, Opening, and Closing Groups</h2> diff --git a/doc/html/References.html b/doc/html/References.html index bb38f55..014b622 100644 --- a/doc/html/References.html +++ b/doc/html/References.html @@ -51,7 +51,7 @@ <hr> -<h1>The Reference Interface (H5R) and <br> the Indentifier Interface (H5I)</h1> +<h1>The Reference Interface (H5R) and <br> the Identifier Interface (H5I)</h1> <h2>1. Introduction</h2> @@ -70,8 +70,6 @@ implemented, or planned for implementation, in HDF5. <dl> <dt>Object reference <dd>Reference to an entire object in the current HDF5 file. - <br> - <em>The only kind of reference currently implemented.</em> <p> An object reference points to an entire object in the current HDF5 file by storing the relative file address @@ -82,8 +80,6 @@ implemented, or planned for implementation, in HDF5. <p> <dt>Dataset region reference <dd>Reference to a specific dataset region. - <br> - <em>Not yet implemented.</em> <p> A dataset region reference points to a region of a dataset in the current HDF5 file by storing the OID @@ -92,16 +88,6 @@ implemented, or planned for implementation, in HDF5. by retrieving the coordinates of the areas in the region from the global heap. A dataset region reference is of a variable size in the file. - <p> - <dt>Internal dataset region reference - <dd>Reference to a region within the current dataset. - <br> - <em>Not yet implemented.</em> - <p> - An internal dataset region reference points to a - region of the current dataset by storing the - coordinates of the region. An internal dataset - region reference is of a fixed size in the file. </dl> @@ -113,31 +99,30 @@ is deleted, moved, or not yet available. <h2>3. Reference Types</h2> -This section lists valid HDF5 reference types for use in the -H5R functions. +Valid HDF5 reference types for use in the H5R functions +are as follows: <center> <table> <tr><th align=left>Reference Type</th><th align=left>Value </th><th align=left>Description</th></tr> +<!-- NOT USER-LEVEL INFORMATION; DELETED FROM HDF5 USER'S GUIDE <tr><td><code>H5R_BADTYPE</code></td> <td align=right><code>-1 </code></td> <td>Invalid reference type</td></tr> +--> <tr><td><code>H5R_OBJECT</code></td> <td align=right><code>0 </code></td> <td>Object reference</td></tr> <tr><td><code>H5R_DATASET_REGION</code></td> <td align=right><code>1 </code></td> <td>Dataset region reference</td></tr> -<tr><td><code>H5R_INTERNAL</code></td> - <td align=right><code>2 </code></td> - <td>Internal reference</td></tr> </table> </center> <h2>4. Functions</h2> -Four functions, three in the H5R interface and one in the +Five functions, four in the H5R interface and one in the H5I interface, have been implemented to support references. The H5I function is also useful outside the context of references. <p> @@ -166,6 +151,17 @@ The H5I function is also useful outside the context of references. <code>dset</code>. <p> + <dt><em>int</em> <code>H5Rget_object_type(</code><em>hid_t</em> <code>obj_id,</code> + <em>void *</em><code>reference)</code> + <dd><code>H5Rget_object_type</code> retrieves the type of object + that an object reference points to. + The parameter <code>obj_id</code> specifies the dataset + containing the reference object or the location identifier + of the object that the dataset is located within. + The parameter <code>reference</code> specifies the + reference being queried. + <p> + <dt><em>H5S_t</em> <code>H5Rget_region(</code><em>H5D_t</em> <code>dataset,</code> <em>H5R_type_t</em> <code>type,</code> <em>void *</em><code>reference)</code> @@ -183,19 +179,17 @@ The H5I function is also useful outside the context of references. in the following list: <center> <table> - <tr><td><code>H5I_BADID</code></td> - <td>Invalid ID</td></tr> - <tr><td><code>H5I_FILE</code></td> + <tr valign=bottom><td><code>H5I_FILE</code></td> <td>File objects</td></tr> - <tr><td><code>H5I_GROUP</code></td> + <tr valign=bottom><td><code>H5I_GROUP</code></td> <td>Group objects</td></tr> - <tr><td><code>H5I_DATATYPE</code></td> + <tr valign=bottom><td><code>H5I_DATATYPE</code></td> <td>Datatype objects</td></tr> - <tr><td><code>H5I_DATASPACE</code></td> + <tr valign=bottom><td><code>H5I_DATASPACE</code></td> <td>Dataspace objects</td></tr> - <tr><td><code>H5I_DATASET</code></td> + <tr valign=bottom><td><code>H5I_DATASET</code></td> <td>Dataset objects</td></tr> - <tr><td><code>H5I_ATTR</code></td> + <tr valign=bottom><td><code>H5I_ATTR</code></td> <td>Attribute objects</td></tr> </table> </center> @@ -527,7 +521,7 @@ Notes: <dt>Disk Offset Reference <dd>Points to a sequence of bytes in the current HDF5 file by storing the byte length and offset of the sequence within - the file, relative to the boot-block (as are all the other high-level + the file, relative to the super block (as are all the other high-level addresses used in the file). The offset is the absolute byte offset within the file, no interpretation of the data at that location is provided. Fixed size in file. |