Exemple #1
0
PetscErrorCode OutputVTK(const Obj<ALE::Mesh>& mesh, Options *options)
{
    PetscViewer    viewer;
    PetscErrorCode ierr;

    PetscFunctionBegin;
    if (options->outputVTK) {
        ALE::LogStage stage = ALE::LogStageRegister("VTKOutput");
        ALE::LogStagePush(stage);
        ierr = PetscPrintf(mesh->comm(), "Creating VTK mesh files\n");
        CHKERRQ(ierr);
        ierr = PetscViewerCreate(mesh->comm(), &viewer);
        CHKERRQ(ierr);
        ierr = PetscViewerSetType(viewer, PETSC_VIEWER_ASCII);
        CHKERRQ(ierr);
        ierr = PetscViewerSetFormat(viewer, PETSC_VIEWER_ASCII_VTK);
        CHKERRQ(ierr);
        ierr = PetscViewerFileSetName(viewer, "testMesh.vtk");
        CHKERRQ(ierr);
        ierr = VTKViewer::writeHeader(viewer);
        CHKERRQ(ierr);
        ierr = VTKViewer::writeHierarchyVertices(mesh, viewer, options->zScale);
        CHKERRQ(ierr);
        ierr = VTKViewer::writeHierarchyElements(mesh, viewer);
        CHKERRQ(ierr);
        ierr = PetscViewerDestroy(viewer);
        CHKERRQ(ierr);
        const ALE::Mesh::topology_type::sheaf_type& patches = mesh->getTopology()->getPatches();
#if 0
        for(ALE::Mesh::topology_type::sheaf_type::iterator p_iter = patches.begin(); p_iter != patches.end(); ++p_iter) {
            ostringstream filename;

            filename << "coarseMesh." << *p_iter << ".vtk";
            ierr = PetscViewerCreate(mesh->comm(), &viewer);
            CHKERRQ(ierr);
            ierr = PetscViewerSetType(viewer, PETSC_VIEWER_ASCII);
            CHKERRQ(ierr);
            ierr = PetscViewerSetFormat(viewer, PETSC_VIEWER_ASCII_VTK);
            CHKERRQ(ierr);
            ierr = PetscViewerFileSetName(viewer, filename.str().c_str());
            CHKERRQ(ierr);
            ierr = VTKViewer::writeHeader(viewer);
            CHKERRQ(ierr);
            ierr = VTKViewer::writeVertices(mesh, *p_iter, viewer);
            CHKERRQ(ierr);
            ierr = VTKViewer::writeElements(mesh, *p_iter, viewer);
            CHKERRQ(ierr);
            //ierr = FieldView_Sieve(mesh, "spacing", viewer);CHKERRQ(ierr);
            ierr = PetscViewerDestroy(viewer);
            CHKERRQ(ierr);
        }
#endif
    }
    PetscFunctionReturn(0);
}
Exemple #2
0
int main(int argc, char *argv[])
{
    MPI_Comm       comm;
    Options        options;
    PetscErrorCode ierr;

    PetscFunctionBegin;
    ierr = PetscInitialize(&argc, &argv, (char *) 0, NULL);
    CHKERRQ(ierr);
    comm = PETSC_COMM_WORLD;

    try {
        Obj<ALE::Mesh> mesh;

        ierr = ProcessOptions(comm, &options);
        CHKERRQ(ierr);
        ierr = CreateMesh(comm, mesh, &options);
        CHKERRQ(ierr);
        ierr = ALE::Coarsener::CreateSpacingFunction(mesh, 2);
        CHKERRQ(ierr);
        ierr = ALE::Coarsener::CreateCoarsenedHierarchyNew(mesh, 2, options.levels, options.coarseFactor);
        CHKERRQ(ierr);
        Obj<ALE::Mesh::sieve_type> sieve = new ALE::Mesh::sieve_type(mesh->comm(), 0);
        mesh->getTopology()->setPatch(options.levels+1, sieve);
        mesh->getTopology()->stratify();
        ierr = OutputVTK(mesh, &options);
        CHKERRQ(ierr);
    } catch (ALE::Exception e) {
        std::cout << e << std::endl;
    }
    ierr = PetscFinalize();
    CHKERRQ(ierr);
    PetscFunctionReturn(0);
}
Exemple #3
0
int main(int argc, char *argv[])
{
  MPI_Comm       comm;
  Options        options;
  PetscErrorCode ierr;

  PetscFunctionBegin;
  ierr = PetscInitialize(&argc, &argv, (char *) 0, NULL);CHKERRQ(ierr);
  comm = PETSC_COMM_WORLD;

  try {
    ierr = ProcessOptions(comm, &options);CHKERRQ(ierr);
    Obj<ALE::Mesh> mesh;
    Mesh mesh_set[options.levels];
    for (int i = 0; i < options.levels; i++) {
      ierr = MeshCreate(comm, &mesh_set[i]);CHKERRQ(ierr);
    };
    ierr = CreateMesh(comm, mesh, &options);CHKERRQ(ierr);
    
    MeshSetMesh(mesh_set[0], mesh);
    ierr = MeshIDBoundary(mesh_set[0]);
    mesh->markBoundaryCells("marker");
    ierr = PetscPrintf(mesh->comm(), "%d boundary vertices, %d boundary cells\n", mesh->getLabelStratum("marker", 1)->size(), mesh->getLabelStratum("marker", 2)->size());
    ierr = MeshSpacingFunction(mesh_set[0]);
    //ierr = MeshIDBoundary(mesh_set[0]);
//    mesh->createLabel("marker");
//    mesh->markBoundaryCells("marker", 1, 2, false);
    MeshCreateHierarchyLabel_Link(mesh_set[0], options.coarseFactor, options.levels, &mesh_set[1],NULL,options.curvatureCutoff );
    Obj<ALE::Mesh> ale_meshes[options.levels];
    for (int i = 0; i < options.levels; i++) {
      MeshGetMesh(mesh_set[i], ale_meshes[i]);
    }
    Hierarchy_qualityInfo(ale_meshes, options.levels);
    //ierr = MeshCoarsenMesh(m, pow(options.coarseFactor, 2), &n);
    //ierr = MeshGetMesh(n, mesh);
    //ierr = MeshLocateInMesh(m, n);
   // Obj<ALE::Mesh::sieve_type> sieve = new ALE::Mesh::sieve_type(mesh->comm(), 0);
   // mesh->getTopology()->setPatch(options.levels, sieve);
   // mesh->getTopology()->stratify();
    char vtkfilename[128];
    for (int i = 0; i < options.levels; i++) {
      sprintf(vtkfilename, "testMesh%d.vtk", i);
      ierr = OutputVTK(ale_meshes[i], &options, vtkfilename);CHKERRQ(ierr);
    }
  } catch (ALE::Exception e) {
    std::cout << e << std::endl;
  }
  ierr = PetscFinalize();CHKERRQ(ierr);
  PetscFunctionReturn(0);
}