h5legacy.cpp

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#include "moab/Core.hpp"
#include "TestUtil.hpp"
#include "moab/Range.hpp"
 
#include <algorithm>
#include <iostream>
#include <cstdlib>
#include <cmath>
 
using namespace moab;
 
void calc_centroid( Interface* iface, EntityHandle pent, double result[3] )
{
 int len;
 const EntityHandle* conn;
 ErrorCode rval;
 rval = iface->get_connectivity( pent, conn, len );CHECK_ERR( rval );
 CHECK_EQUAL( 5, len );
 
 double coords[15];
 rval = iface->get_coords( conn, len, coords );CHECK_ERR( rval );
 
 for( int d = 0; d < 3; ++d )
 {
 result[d] = 0;
 for( int i = 0; i < 5; ++i )
 result[d] += coords[3 * i + d];
 result[d] /= 5;
 }
}
 
void test_moab_v3_poly_format()
{
 Core moab;
 Interface& mb = moab;
 ErrorCode rval;
 
 // load file containing a dodecahedron
 rval = mb.load_mesh( std::string( TestDir + "unittest/h5file/v3_dodec.h5m" ).c_str() );CHECK_ERR( rval );
 
 // get entities from file
 Range verts, faces, polyhedrons;
 rval = mb.get_entities_by_type( 0, MBVERTEX, verts );CHECK_ERR( rval );
 rval = mb.get_entities_by_type( 0, MBPOLYGON, faces );CHECK_ERR( rval );
 rval = mb.get_entities_by_type( 0, MBPOLYHEDRON, polyhedrons );CHECK_ERR( rval );
 
 // check expected number of entities
 CHECK_EQUAL( (size_t)20, verts.size() );
 CHECK_EQUAL( (size_t)12, faces.size() );
 CHECK_EQUAL( (size_t)1, polyhedrons.size() );
 const EntityHandle polyhedron = polyhedrons.front();
 
 // check the polyhedron connectivity list
 std::vector< EntityHandle > faces1, faces2;
 std::copy( faces.begin(), faces.end(), std::back_inserter( faces1 ) );
 rval = mb.get_connectivity( &polyhedron, 1, faces2 );CHECK_ERR( rval );
 std::sort( faces2.begin(), faces2.end() );
 CHECK( faces1 == faces2 );
 
 // each polygonshould have a tag value storing its centroid.
 // compare this value against the centroid calculated from
 // the vertex coords.
 
 // get tag for saved values
 Tag centroid;
 rval = mb.tag_get_handle( "CENTROID", 3, MB_TYPE_DOUBLE, centroid );CHECK_ERR( rval );
 
 // for each face...
 for( Range::iterator i = faces.begin(); i != faces.end(); ++i )
 {
 double saved[3], calc[3];
 rval = mb.tag_get_data( centroid, &*i, 1, saved );CHECK_ERR( rval );
 calc_centroid( &mb, *i, calc );
 CHECK_REAL_EQUAL( saved[0], calc[0], 1e-6 );
 CHECK_REAL_EQUAL( saved[1], calc[1], 1e-6 );
 CHECK_REAL_EQUAL( saved[2], calc[2], 1e-6 );
 }
}
 
int main()
{
 // only one test so far... should probably add second test
 // for really-old-format entityset parent/child links
 return RUN_TEST( test_moab_v3_poly_format );
}