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driverOCC.cpp

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  • Forked from gmsh / gmsh
    Source project has a limited visibility.
    driverOCC.cpp 1.50 KiB
    // g++ -I/usr/local/opencascade/inc driverOCC.cpp -lGmsh -L/usr/local/opencascade/lib -lTKSTEP -lTKSTEP209 -lTKSTEPAttr -lTKSTEPBase -lTKIGES -lTKXSBase -lTKOffset -lTKFeat -lTKFillet -lTKBool -lTKShHealing -lTKMesh -lTKHLR -lTKBO -lTKPrim -lTKTopAlgo -lTKGeomAlgo -lTKBRep -lTKGeomBase -lTKG3d -lTKG2d -lTKAdvTools -lTKMath -lTKernel -lm
    
    #if !defined(WIN32) || defined(__CYGWIN__)
    #include "config.h"
    #endif
    #include "TopoDS_Shape.hxx"
    #include "BRep_Tool.hxx"
    #include "BRep_Builder.hxx"
    #include "BRepTools.hxx"
    
    #include <stdio.h>
    #include <gmsh/Gmsh.h>
    #include <gmsh/GModel.h>
    #include <gmsh/MElement.h>
    
    int main(int argc, char **argv)
    {
      // create an OCC shape (by loading it from a brep file)
      TopoDS_Shape shape;
      BRep_Builder builder;
      BRepTools::Read(shape, argv[1], builder);
      BRepTools::Clean(shape);
    
      // import the shape in gmsh and mesh it
      GmshInitialize(argc, argv);
    
      GModel m;
      m.importOCCShape((void*)&shape, 0);
      m.mesh(2);
    
      for(GModel::fiter it = m.firstFace(); it != m.lastFace(); ++it){
        GFace *f = *it;
        printf("Surface %d contains %d elements:\n", f->tag(), f->getNumMeshElements());
        for(unsigned int i = 0; i < f->getNumMeshElements(); i++){
          MElement *e = f->getMeshElement(i);
          printf("  element %d:", e->getNum());
          for(unsigned int j = 0; j < e->getNumVertices(); j++){
    	MVertex *v = e->getVertex(j);
    	printf(" %d (%g,%g,%g)", v->getNum(), v->x(), v->y(), v->z());
          }
          printf("\n");
        }
        printf("\n");
      }
    
      m.writeMSH("test.msh");
    
      GmshFinalize();
    }