MOAB: Mesh Oriented datABase  (version 5.2.1)
DeleteEdges.cpp
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00001 /** @example GetEntities.cpp
00002  * Description: Get entities and report non-vertex entity connectivity and vertex adjacencies.\n
00003  * then delete edges, and write result
00004  * To run: ./DeleteEdges [meshfile] [outfile]\n
00005  */
00006 
00007 #include "moab/Core.hpp"
00008 #include "moab/Range.hpp"
00009 #include "moab/CN.hpp"
00010 #include <iostream>
00011 
00012 using namespace moab;
00013 using namespace std;
00014 
00015 #ifndef MESH_DIR
00016 #define MESH_DIR "."
00017 #endif
00018 
00019 string test_file_name = string( MESH_DIR ) + string( "/hex01.vtk" );
00020 string out_file       = string( "outFile.h5m" );
00021 
00022 int main( int argc, char** argv )
00023 {
00024     if( argc > 1 )
00025     {
00026         // User has input a mesh file
00027         test_file_name = argv[1];
00028     }
00029     if( argc > 2 )
00030     {
00031         // User has specified an output file
00032         out_file = argv[2];
00033     }
00034 
00035     // Instantiate & load a mesh from a file
00036     Core* mb = new( std::nothrow ) Core;
00037     if( NULL == mb ) return 1;
00038     ErrorCode rval = mb->load_mesh( test_file_name.c_str() );MB_CHK_ERR( rval );
00039 
00040     Range edges;
00041     rval = mb->get_entities_by_dimension( 0, 1, edges );MB_CHK_ERR( rval );
00042     rval = mb->delete_entities( edges );MB_CHK_ERR( rval );
00043 
00044     rval = mb->write_file( out_file.c_str() );MB_CHK_ERR( rval );
00045     delete mb;
00046 
00047     return 0;
00048 }
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