[svn-r12009] Purpose:

add examples

Description:
add examples for HL (image, table and dimension scales)

Solution:

Platforms tested:
linux

Misc. update:

1 files changed, 171 insertions, 0 deletions

diff --git a/hl/examples/ex_table_05.c b/hl/examples/ex_table_05.c
new file mode 100644
index 0000000..e658ee3
--- /dev/null
+++ b/hl/examples/ex_table_05.c
@@ -0,0 +1,171 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by the Board of Trustees of the University of Illinois.         *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * This file is part of HDF5.  The full HDF5 copyright notice, including     *
+ * terms governing use, modification, and redistribution, is contained in    *
+ * the files COPYING and Copyright.html.  COPYING can be found at the root   *
+ * of the source code distribution tree; Copyright.html can be found at the  *
+ * root level of an installed copy of the electronic HDF5 document set and   *
+ * is linked from the top-level documents page.  It can also be found at     *
+ * http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html.  If you do not have     *
+ * access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+
+#include "H5TB.h"
+#include <stdlib.h>
+
+/*-------------------------------------------------------------------------
+ * Table API example
+ *
+ * H5TBwrite_fields_index
+ *
+ *-------------------------------------------------------------------------
+ */
+
+#define NFIELDS  (hsize_t)       5
+#define NRECORDS (hsize_t)       8
+#define TABLE_NAME "table"
+
+int main( void )
+{
+ typedef struct Particle 
+ {
+  char   name[16];
+  int    lati;
+  int    longi;
+  float  pressure;
+  double temperature; 
+ } Particle;
+
+ /* Define a subset of Particle, with latitude and longitude fields */
+ typedef struct Position 
+ {
+  int    lati;
+  int    longi;
+ } Position;
+
+ /* Define a subset of Particle, with name and pressure fields */
+ typedef struct NamePressure 
+ {
+  char   name[16];
+  float  pressure;
+ } NamePressure;
+ 
+ /* Calculate the type_size and the offsets of our struct members */
+ Particle  dst_buf[NRECORDS];
+ size_t dst_size =  sizeof( Particle );
+ size_t dst_offset[NFIELDS] = { HOFFSET( Particle, name ),
+                                HOFFSET( Particle, lati ),
+                                HOFFSET( Particle, longi ),
+                                HOFFSET( Particle, pressure ),
+                                HOFFSET( Particle, temperature )};
+ size_t dst_sizes[NFIELDS] = { sizeof( dst_buf[0].name),
+                               sizeof( dst_buf[0].lati),
+                               sizeof( dst_buf[0].longi),
+                               sizeof( dst_buf[0].pressure),
+                               sizeof( dst_buf[0].temperature)};
+
+ size_t field_offset_pos[2] = { HOFFSET( Position, lati ),
+                                HOFFSET( Position, longi )};
+ 
+ /* Initially no data */
+ Particle  *p_data = NULL;
+
+ /* Define field information */
+ const char *field_names[NFIELDS]  = 
+ { "Name","Latitude", "Longitude", "Pressure", "Temperature" };
+ hid_t      field_type[NFIELDS];
+ hid_t      string_type;
+ hid_t      file_id;
+ hsize_t    chunk_size = 10;
+  Particle   fill_data[1] = 
+ { {"no data",-1,-1, -99.0f, -99.0} };   /* Fill value particle */ 
+ int        compress  = 0;
+ hsize_t    nfields;
+ hsize_t    start;                       /* Record to start reading/writing */
+ hsize_t    nrecords;                    /* Number of records to read/write */
+ herr_t     status; 
+ int        i;
+
+ /* Define new values for the field "Pressure"  */
+ float      pressure_in  [NRECORDS] = 
+ { 0.0f,1.0f,2.0f,3.0f,4.0f,5.0f,6.0f,7.0f };
+
+ int        field_index_pre[1]     = { 3 };
+ int        field_index_pos[2]     = { 1,2 };
+
+ /* Define new values for the fields "Latitude,Longitude"  */
+ Position   position_in[NRECORDS] = { {0,0},
+ {10,10},
+ {20,20}, 
+ {30,30}, 
+ {40,40},
+ {50,50}, 
+ {60,60},    
+ {70,70} };
+
+ size_t field_sizes_pos[2]=
+ {
+  sizeof(position_in[0].longi),
+  sizeof(position_in[0].lati)
+ };
+ 
+ size_t field_sizes_pre[1]=
+ { 
+  sizeof(float)
+ };
+
+ /* Initialize the field field_type */
+ string_type = H5Tcopy( H5T_C_S1 );
+ H5Tset_size( string_type, 16 );
+ field_type[0] = string_type;
+ field_type[1] = H5T_NATIVE_INT;
+ field_type[2] = H5T_NATIVE_INT;
+ field_type[3] = H5T_NATIVE_FLOAT;
+ field_type[4] = H5T_NATIVE_DOUBLE;
+ 
+ /* Create a new file using default properties. */
+ file_id = H5Fcreate( "ex_table_05.h5", H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT );
+
+ /* Make the table */
+ status=H5TBmake_table( "Table Title", file_id, TABLE_NAME,NFIELDS,NRECORDS, 
+                         dst_size,field_names, dst_offset, field_type, 
+                         chunk_size, fill_data, compress, p_data  );
+
+ /* Write the pressure field starting at record 2 */
+ nfields  = 1;
+ start    = 2;      
+ nrecords = 3; 
+ status=H5TBwrite_fields_index( file_id, TABLE_NAME, nfields, field_index_pre, start, nrecords, 
+   sizeof( float ), 0, field_sizes_pre, pressure_in  );
+
+ /* Write the new longitude and latitude information starting at record 2  */
+ nfields  = 2;
+ start    = 2;      
+ nrecords = 3; 
+ status=H5TBwrite_fields_index( file_id, TABLE_NAME, nfields, field_index_pos, start, nrecords, 
+   sizeof( Position ), field_offset_pos, field_sizes_pos, position_in  );
+
+ /* read the table */
+ status=H5TBread_table( file_id, TABLE_NAME, dst_size, dst_offset, dst_sizes, dst_buf );
+
+ /* print it by rows */
+ for (i=0; i<NRECORDS; i++) {
+  printf ("%-5s %-5d %-5d %-5f %-5f", 
+   dst_buf[i].name,
+   dst_buf[i].lati,
+   dst_buf[i].longi,
+   dst_buf[i].pressure,
+   dst_buf[i].temperature);
+  printf ("\n");
+ }
+ 
+ /* Close the file. */
+ H5Fclose( file_id );
+
+ return 0;
+
+}
+