Loading [MathJax]/extensions/tex2jax.js
Mesh Oriented datABase  (version 5.5.1)
An array-based unstructured mesh library
All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Pages
addPCdata.cpp File Reference
#include "moab/ProgOptions.hpp"
#include "moab/Core.hpp"
#include <cmath>
#include <sstream>
+ Include dependency graph for addPCdata.cpp:

Go to the source code of this file.

Functions

int main (int argc, char *argv[])
 

Function Documentation

◆ main()

int main ( int  argc,
char *  argv[] 
)
Examples
addPCdata.cpp.

Definition at line 28 of file addPCdata.cpp.

29 { 30  31  ProgOptions opts; 32  33  std::string inputfile, outfile( "out.h5m" ), sourcefile, variable_name; 34  int dual_mesh = 0; 35  opts.addOpt< std::string >( "input,i", "input mesh filename", &inputfile ); 36  opts.addOpt< std::string >( "source,s", "h5m file aligned with the mesh input file", &sourcefile ); 37  opts.addOpt< std::string >( "output,o", "output mesh filename", &outfile ); 38  39  opts.addOpt< std::string >( "var,v", "variable to extract and add to output file", &variable_name ); 40  opts.addOpt< int >( "pentagon,p", "switch for dual mesh ", &dual_mesh ); 41  42  opts.parseCommandLine( argc, argv ); 43  44  std::cout << "input file: " << inputfile << "\n"; 45  std::cout << "source file: " << sourcefile << "\n"; 46  std::cout << "variable to copy: " << variable_name << "\n"; 47  std::cout << "output file: " << outfile << "\n"; 48  49  if( inputfile.empty() ) 50  { 51  opts.printHelp(); 52  return 0; 53  } 54  ErrorCode rval; 55  Core* mb = new Core(); 56  57  rval = mb->load_file( inputfile.c_str() );MB_CHK_SET_ERR( rval, "can't load input file" ); 58  59  Core* mb2 = new Core(); 60  rval = mb2->load_file( sourcefile.c_str() );MB_CHK_SET_ERR( rval, "can't load source file" ); 61  62  Tag sourceTag; 63  rval = mb2->tag_get_handle( variable_name.c_str(), sourceTag );MB_CHK_SET_ERR( rval, "can't get tag from file" ); 64  65  int sizeTag = 0; 66  rval = mb2->tag_get_length( sourceTag, sizeTag );MB_CHK_SET_ERR( rval, "can't get size of tag " ); 67  68  DataType type; 69  rval = mb2->tag_get_data_type( sourceTag, type );MB_CHK_SET_ERR( rval, "can't get type of tag " ); 70  71  int sizeInBytes = 0; 72  rval = mb2->tag_get_bytes( sourceTag, sizeInBytes );MB_CHK_SET_ERR( rval, "can't get size in bytes of tag " ); 73  74  Tag newTag; 75  /* 76  * ErrorCode tag_get_handle( const char* name, 77  int size, 78  DataType type, 79  Tag& tag_handle, 80  unsigned flags = 0, 81  const void* default_value = 0 ) 82  */ 83  void* defVal; 84  int defInt = -100000; 85  double defDouble = -1.e10; 86  if( type == MB_TYPE_INTEGER ) 87  { 88  defVal = (void*)( &defInt ); 89  } 90  else if( type == MB_TYPE_DOUBLE ) 91  { 92  defVal = (void*)( &defDouble ); 93  } 94  95  rval = mb->tag_get_handle( variable_name.c_str(), sizeTag, type, newTag, MB_TAG_DENSE | MB_TAG_CREAT, defVal );MB_CHK_SET_ERR( rval, "can't create new tag " ); 96  97  // get vertices on ini mesh; get global id on ini mesh 98  // get global id on source mesh 99  Tag gid; 100  Tag gid2; 101  rval = mb->tag_get_handle( "GLOBAL_ID", gid );MB_CHK_SET_ERR( rval, "can't get GLOBAL_ID tag on ini mesh " ); 102  rval = mb2->tag_get_handle( "GLOBAL_ID", gid2 );MB_CHK_SET_ERR( rval, "can't get GLOBAL_ID tag on source mesh " ); 103  104  // get vertices on ini mesh; build 105  Range iniVerts; 106  rval = mb->get_entities_by_dimension( 0, 0, iniVerts );MB_CHK_SET_ERR( rval, "can't get verts on initial mesh " ); 107  if( 0 != dual_mesh ) 108  { 109  // verts will be polygons 110  rval = mb->get_entities_by_dimension( 0, 2, iniVerts );MB_CHK_SET_ERR( rval, "can't get polygons on initial mesh " ); 111  } 112  std::vector< int > gids; 113  gids.resize( iniVerts.size() ); 114  rval = mb->tag_get_data( gid, iniVerts, &( gids[0] ) );MB_CHK_SET_ERR( rval, "can't get gid on initial verts " ); 115  // build now the map 116  std::map< int, EntityHandle > fromGidToEh; 117  int i = 0; 118  for( Range::iterator vit = iniVerts.begin(); vit != iniVerts.end(); vit++, i++ ) 119  { 120  fromGidToEh[gids[i]] = *vit; 121  } 122  // now get the source verts, and tags, and set it on new mesh 123  124  char* valTag = new char[sizeInBytes]; 125  126  std::cout << " size of tag in bytes:" << sizeInBytes << "\n"; 127  Range sourceVerts; 128  rval = mb2->get_entities_by_dimension( 0, 0, sourceVerts );MB_CHK_SET_ERR( rval, "can't get verts on source mesh " ); 129  for( Range::iterator sit = sourceVerts.begin(); sit != sourceVerts.end(); sit++ ) 130  { 131  int globalId = 0; 132  EntityHandle sourceHandle = *sit; 133  rval = mb2->tag_get_data( gid2, &sourceHandle, 1, &globalId );MB_CHK_SET_ERR( rval, "can't get id on source mesh " ); 134  // iniVert could be a polygon, actually 135  EntityHandle iniVert = fromGidToEh[globalId]; 136  // find the value of source tag 137  rval = mb2->tag_get_data( sourceTag, &sourceHandle, 1, (void*)valTag );MB_CHK_SET_ERR( rval, "can't get value on source tag " ); 138  139  rval = mb->tag_set_data( newTag, &iniVert, 1, (void*)valTag );MB_CHK_SET_ERR( rval, "can't set value on initial mesh, new tag " ); 140  } 141  142  // save file 143  rval = mb->write_file( outfile.c_str() );MB_CHK_SET_ERR( rval, "can't write file" ); 144  145  delete[] valTag; 146  delete mb; 147  delete mb2; 148  149  return 0; 150 }

References ProgOptions::addOpt(), moab::Range::begin(), moab::Range::end(), ErrorCode, moab::Core::get_entities_by_dimension(), moab::Core::load_file(), mb, MB_CHK_SET_ERR, MB_TAG_CREAT, MB_TAG_DENSE, MB_TYPE_DOUBLE, MB_TYPE_INTEGER, ProgOptions::parseCommandLine(), ProgOptions::printHelp(), moab::Range::size(), moab::Core::tag_get_bytes(), moab::Core::tag_get_data(), moab::Core::tag_get_data_type(), moab::Core::tag_get_handle(), moab::Core::tag_get_length(), moab::Core::tag_set_data(), and moab::Core::write_file().