LoadPartial.cpp File Reference

#include <iostream>
#include <vector>
#include "moab/Core.hpp"
#include "MBTagConventions.hpp"

Include dependency graph for LoadPartial.cpp:

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Macros
#define	NTAGVALS   3

Functions
ErrorCode	get_file_options (int argc, char **argv, string &filename, string &tagName, vector< int > &tagValues)
int	main (int argc, char **argv)

Macro Definition Documentation

NTAGVALS

#define NTAGVALS   3

Examples

LoadPartial.cpp.

Definition at line 21 of file LoadPartial.cpp.

Function Documentation

get_file_options()

ErrorCode get_file_options	(	int	argc,
		char **	argv,
		string &	filename,
		string &	tagName,
		vector< int > &	tagValues
	)

Examples

LoadPartial.cpp.

Definition at line 27 of file LoadPartial.cpp.

   28 {
   29     // Get mesh filename
   30     if( argc > 1 )
   31         filename = string( argv[1] );
   32     else
   33         filename = string( MESH_DIR ) + string( "/64bricks_512hex_256part.h5m" );
   34  
   35     // Get tag selection options
   36     if( argc > 2 )
   37         tagName = string( argv[2] );
   38     else
   39         tagName = "USERTAG";
   40  
   41     if( argc > 3 )
   42     {
   43         tagValues.resize( argc - 3, 0 );
   44         for( int i = 3; i < argc; ++i )
   45             tagValues[i - 3] = atoi( argv[i] );
   46     }
   47     else
   48     {
   49         for( unsigned i = 0; i < tagValues.size(); ++i )
   50             tagValues[i] = 2 * i + 1;
   51     }
   52  
   53     if( argc > 1 && argc < 4 )  // print usage
   54         cout << " usage is " << argv[0] << " <file> <tag_name> <value1> <value2> .. \n";
   55     return MB_SUCCESS;
   56 }

References MB_SUCCESS, and MESH_DIR.

Referenced by main().

main()

int main	(	int	argc,
		char **	argv
	)

Examples

LoadPartial.cpp.

Definition at line 58 of file LoadPartial.cpp.

   59 {
   60     // Get MOAB instance
   61     Interface* mb = new( std::nothrow ) Core;
   62     if( NULL == mb ) return 1;
   63  
   64     std::string filename, tagname;
   65     vector< int > tagvals( NTAGVALS );  // Allocate for a maximum of 5 tag values
   66     ErrorCode rval = get_file_options( argc, argv, filename, tagname, tagvals );MB_CHK_ERR( rval );
   67  
   68 #ifdef MOAB_HAVE_HDF5
   69     // This file is in the mesh files directory
   70     rval = mb->load_file( filename.c_str(), 0, 0, PARALLEL_PARTITION_TAG_NAME, tagvals.data(), (int)tagvals.size() );MB_CHK_SET_ERR( rval, "Failed to read" );
   71  
   72     // If HANDLEID tag present, convert to long, and see what we read from file
   73     Tag handleid_tag;
   74     rval = mb->tag_get_handle( "HANDLEID", handleid_tag );
   75     if( MB_SUCCESS == rval )
   76     {
   77         // Convert a few values for a few vertices
   78         Range verts;
   79         rval = mb->get_entities_by_type( 0, MBVERTEX, verts );MB_CHK_SET_ERR( rval, "Failed to get vertices" );
   80         vector< long > valsTag( verts.size() );
   81         rval = mb->tag_get_data( handleid_tag, verts, &valsTag[0] );
   82         if( MB_SUCCESS == rval ) cout << "First 2 long values recovered: " << valsTag[0] << " " << valsTag[1] << "\n";
   83     }
   84  
   85     rval = mb->write_file( "part.h5m" );MB_CHK_SET_ERR( rval, "Failed to write partial file" );
   86     cout << "Wrote successfully part.h5m.\n";
   87  
   88 #else
   89     std::cout << "Configure MOAB with HDF5 to build and use this example correctly.\n";
   90 #endif
   91     delete mb;
   92     return 0;
   93 }

References ErrorCode, moab::Core::get_entities_by_type(), get_file_options(), moab::Core::load_file(), mb, MB_CHK_ERR, MB_CHK_SET_ERR, MB_SUCCESS, MBVERTEX, NTAGVALS, PARALLEL_PARTITION_TAG_NAME, moab::Range::size(), moab::Core::tag_get_data(), moab::Core::tag_get_handle(), and moab::Core::write_file().