geohandlers_example_00000.cpp

Example of usage of selection block to select a sub-patch of an input geometry.Using: SelectionByCylinder, MimmoGeometry, Chain.

To run : ./geohandlers_example_00000
To run (MPI version): mpirun -np X geohandlers_example_00000
visit: mimmo website

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 *  mimmo
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 *  Copyright (C) 2015-2021 OPTIMAD engineering Srl
 *
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 *  License
 *  This file is part of mimmo.
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 *  mimmo is free software: you can redistribute it and/or modify it
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 *  as published by the Free Software Foundation.
 *
 *  mimmo is distributed in the hope that it will be useful, but WITHOUT
 *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 *  FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
 *  License for more details.
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 *  You should have received a copy of the GNU Lesser General Public License
 *  along with mimmo. If not, see <http://www.gnu.org/licenses/>.
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#include "mimmo_geohandlers.hpp"
#include <bitpit_common.hpp>
 
// =================================================================================== //
// =================================================================================== //
 
void test00001() {
 
    /*
        Read a STL geometry (namely a plane). Convert mode will also write the just read geometry
        in the new stl file (specified with setWriteFilename)
     */
    mimmo::MimmoGeometry * mimmo0 = new mimmo::MimmoGeometry(mimmo::MimmoGeometry::IOMode::CONVERT);
    mimmo0->setName("mimmo0");
    mimmo0->setReadDir("./geodata");
    mimmo0->setReadFileType(FileType::STL);
    mimmo0->setReadFilename("plane3");
    mimmo0->setWriteDir("./");
    mimmo0->setWriteFileType(FileType::STL);
    mimmo0->setWriteFilename("geohandlers_output_00000.0000");
 
    /*
        Write a STL geometry.
     */
    mimmo::MimmoGeometry * mimmo1 = new mimmo::MimmoGeometry(mimmo::MimmoGeometry::IOMode::WRITE);
    mimmo1->setWriteDir(".");
    mimmo1->setWriteFileType(FileType::STL);
    mimmo1->setWriteFilename("geohandlers_output_00000.0001");
 
    /*
        Select a subportion of geometry using a cylinder shape
     */
    mimmo::SelectionByCylinder * sel3 = new mimmo::SelectionByCylinder();
    sel3->setOrigin({{0.5, 0.0, 0.0}});
    sel3->setSpan({{0.75, 2.0*BITPIT_PI, 0.4}});
    sel3->setInfLimits({{0.25, 0.0, 0.0}});
    sel3->setRefSystem({{0,1,0}}, {{0,0,1}}, {{1,0,0}});
    sel3->setPlotInExecution(true);
 
    /*
        Define block pin connections.
     */
    mimmo::pin::addPin(mimmo0, sel3, M_GEOM, M_GEOM);
    mimmo::pin::addPin(sel3, mimmo1, M_GEOM, M_GEOM);
 
    /*
        Setup execution chain.
     */
    mimmo::Chain ch0;
    ch0.addObject(mimmo0);
    ch0.addObject(sel3);
    ch0.addObject(mimmo1);
 
    /*
        Execute the chain.
        Use debug flag true to to print out the execution steps.
     */
    ch0.exec(true);
 
    /* Clean up & exit;
     */
    delete sel3;
    delete mimmo0;
    delete mimmo1;
 
    return;
}
 
// =================================================================================== //
 
int main( int argc, char *argv[] ) {
 
    BITPIT_UNUSED(argc);
    BITPIT_UNUSED(argv);
 
#if MIMMO_ENABLE_MPI
    MPI_Init(&argc, &argv);
#endif
        try{
            test00001();
        }
        catch(std::exception & e){
            std::cout<<"geohandlers_example_00000 exited with an error of type : "<<e.what()<<std::endl;
            return 1;
        }
#if MIMMO_ENABLE_MPI
    MPI_Finalize();
#endif
 
    return 0;
}