test-geomodel-tetrahedralize-with-TetGen.cpp

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/*
 * Copyright (c) 2012-2017, Association Scientifique pour la Geologie et ses
 * Applications (ASGA). All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
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 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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#include <ringmesh/ringmesh_tests_config.h>

#include <ringmesh/geomodel/geomodel_api.h>
#include <ringmesh/geomodel/geomodel_builder.h>
#include <ringmesh/geomodel/geomodel_validity.h>
#include <ringmesh/io/io.h>

int main()
{
    using namespace RINGMesh;

    try
    {
        default_configure();

        // Set an output log file
        std::string log_file( ringmesh_test_output_path );
        log_file += "log.txt";
        GEO::FileLogger* file_logger = new GEO::FileLogger( log_file );
        Logger::instance()->register_client( file_logger );

        std::string file_name( ringmesh_test_data_path );
        file_name += "modelA6.ml";

        // Loading the GeoModel
        GeoModel3D geomodel;
        bool loaded_model_is_valid = geomodel_load( geomodel, file_name );

        if( !loaded_model_is_valid )
        {
            throw RINGMeshException( "RINGMesh Test",
                "Failed when building model ", geomodel.name(),
                ": the model is not valid." );
        }

#ifdef RINGMESH_WITH_TETGEN

        // Tetrahedralize the GeoModel
        tetrahedralize( geomodel, "TetGen", NO_ID, false );
        for( index_t r : range( geomodel.nb_regions() ) )
        {
            if( !geomodel.region( r ).is_meshed() )
            {
                throw RINGMeshException( "RINGMesh Test",
                    "Failed when tetrahedralize model ", geomodel.name(),
                    " Region ", r, " is not meshed ",
                    "maybe the Tetgen call have failed" );
            }
        }

        // Output the mesh
        std::string output_file_name( ringmesh_test_output_path );
        output_file_name += "modelA6_tetgen.gm";
        geomodel_save( geomodel, output_file_name );

        // Reload it and test its validity
        GeoModel3D reloaded_model;
        bool reloaded_model_is_valid =
            geomodel_load( reloaded_model, output_file_name );

        if( !reloaded_model_is_valid )
        {
            throw RINGMeshException( "RINGMesh Test",
                "Failed when tetrahedralize model ", geomodel.name(),
                ": the model becomes invalid." );
        }

#endif
    }
    catch( const RINGMeshException& e )
    {
        Logger::err( e.category(), e.what() );
        return 1;
    }
    catch( const std::exception& e )
    {
        Logger::err( "Exception", e.what() );
        return 1;
    }
    Logger::out( "TEST", "SUCCESS" );
    return 0;
}