File size: 2,043 Bytes
5b89cb9 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 | #include <test_common.h>
#include <catch2/catch.hpp>
#include <igl/MshLoader.h>
TEST_CASE("MshLoader","[igl]")
{
igl::MshLoader msh_loader(test_common::data_path("sphere_lowres_TMS_1-0001_Magstim_70mm_Fig8_nii_scalar.msh"));
//
// size of nodes - 3xNodes (x,y,z)
//
REQUIRE( msh_loader.get_nodes().size() == (398+4506)*3 );
//
// size of elements: number of triangles x 3
// number of tetrahedra x 4
//
REQUIRE( msh_loader.get_elements().size() == (8988*3 + 25937*4) );
// all these should have the same size
REQUIRE( msh_loader.get_elements_lengths().size() == (8988 + 25937) );
REQUIRE( msh_loader.get_elements_ids().size() == (8988 + 25937) );
REQUIRE( msh_loader.get_elements_types().size() == (8988 + 25937) );
// the test file should have identity map
REQUIRE( msh_loader.is_element_map_identity() );
// there should be 12 tags: 6 surface structures and 6 volume structures
// index 1st structure tag: Volumes
msh_loader.index_structures(1);
REQUIRE( msh_loader.is_element_map_identity() );
REQUIRE( msh_loader.get_structures().size() == 6+6 );
// verify that all triangle elements have length of 3 and
// tetrahedral elements have length 4
for(auto t =msh_loader.get_structures().begin();
t!=msh_loader.get_structures().end(); ++t )
{
REQUIRE(( t->el_type == igl::MshLoader::ELEMENT_TRI ||
t->el_type == igl::MshLoader::ELEMENT_TET ));
auto element_range = msh_loader.get_structure_index().equal_range(*t);
for(auto e=element_range.first; e != element_range.second; ++e)
{
if( t->el_type == igl::MshLoader::ELEMENT_TRI )
{
REQUIRE( msh_loader.get_elements_lengths()[e->second] == 3 );
} else {
// t->first.el_type==MshLoader::ELEMENT_TET
REQUIRE( msh_loader.get_elements_lengths()[e->second] == 4 );
}
}
}
}
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