PetscErrorCode OutputVTK(ALE::Obj<ALE::Mesh> mesh, Options *options, std::string outname)
{
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, outname.c_str());CHKERRQ(ierr);
ierr = VTKViewer::writeHeader(viewer);CHKERRQ(ierr);
ierr = VTKViewer::writeVertices(mesh, viewer);
ierr = VTKViewer::writeElements(mesh, viewer);
// 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();
ALE::LogStagePop(stage);
}
PetscFunctionReturn(0);
}
PetscErrorCode DMCartesianGetSectionReal(DM dm, const char name[], SectionReal *section)
{
ALE::Obj<ALE::CartesianMesh> m;
PetscErrorCode ierr;
PetscFunctionBegin;
ierr = DMCartesianGetMesh(dm, m);
CHKERRQ(ierr);
ierr = SectionRealCreate(m->comm(), section);
CHKERRQ(ierr);
ierr = PetscObjectSetName((PetscObject) *section, name);
CHKERRQ(ierr);
#if 0
ierr = SectionRealSetSection(*section, m->getRealSection(std::string(name)));
CHKERRQ(ierr);
ierr = SectionRealSetBundle(*section, m);
CHKERRQ(ierr);
#endif
PetscFunctionReturn(0);
}
PetscErrorCode DMCreateInterpolation_Cartesian(DM fineMesh, DM coarseMesh, Mat *interpolation, Vec *scaling)
{
ALE::Obj<ALE::CartesianMesh> coarse;
ALE::Obj<ALE::CartesianMesh> fine;
Mat P;
PetscErrorCode ierr;
PetscFunctionBegin;
ierr = DMCartesianGetMesh(fineMesh, fine);
CHKERRQ(ierr);
ierr = DMCartesianGetMesh(coarseMesh, coarse);
CHKERRQ(ierr);
#if 0
const ALE::Obj<ALE::Mesh::real_section_type>& coarseCoordinates = coarse->getRealSection("coordinates");
const ALE::Obj<ALE::Mesh::real_section_type>& fineCoordinates = fine->getRealSection("coordinates");
const ALE::Obj<ALE::Mesh::label_sequence>& vertices = fine->depthStratum(0);
const ALE::Obj<ALE::Mesh::real_section_type>& sCoarse = coarse->getRealSection("default");
const ALE::Obj<ALE::Mesh::real_section_type>& sFine = fine->getRealSection("default");
const ALE::Obj<ALE::Mesh::order_type>& coarseOrder = coarse->getFactory()->getGlobalOrder(coarse, "default", sCoarse);
const ALE::Obj<ALE::Mesh::order_type>& fineOrder = fine->getFactory()->getGlobalOrder(fine, "default", sFine);
const int dim = coarse->getDimension();
double *v0, *J, *invJ, detJ, *refCoords, *values;
#endif
ierr = MatCreate(fine->comm(), &P);
CHKERRQ(ierr);
#if 0
ierr = MatSetSizes(P, sFine->size(), sCoarse->size(), PETSC_DETERMINE, PETSC_DETERMINE);
CHKERRQ(ierr);
ierr = MatSetFromOptions(P);
CHKERRQ(ierr);
ierr = PetscMalloc5(dim,double,&v0,dim*dim,double,&J,dim*dim,double,&invJ,dim,double,&refCoords,dim+1,double,&values);
CHKERRQ(ierr);
for(ALE::Mesh::label_sequence::iterator v_iter = vertices->begin(); v_iter != vertices->end(); ++v_iter) {
const ALE::Mesh::real_section_type::value_type *coords = fineCoordinates->restrictPoint(*v_iter);
const ALE::Mesh::point_type coarseCell = coarse->locatePoint(coords);
coarse->computeElementGeometry(coarseCoordinates, coarseCell, v0, J, invJ, detJ);
for(int d = 0; d < dim; ++d) {
refCoords[d] = 0.0;
for(int e = 0; e < dim; ++e) {
refCoords[d] += invJ[d*dim+e]*(coords[e] - v0[e]);
}
refCoords[d] -= 1.0;
}
values[0] = 1.0/3.0 - (refCoords[0] + refCoords[1])/3.0;
values[1] = 0.5*(refCoords[0] + 1.0);
values[2] = 0.5*(refCoords[1] + 1.0);
ierr = updateOperatorGeneral(P, fine, sFine, fineOrder, *v_iter, sCoarse, coarseOrder, coarseCell, values, INSERT_VALUES);
CHKERRQ(ierr);
}
ierr = PetscFree5(v0,J,invJ,refCoords,values);
CHKERRQ(ierr);
#endif
ierr = MatAssemblyBegin(P, MAT_FINAL_ASSEMBLY);
CHKERRQ(ierr);
ierr = MatAssemblyEnd(P, MAT_FINAL_ASSEMBLY);
CHKERRQ(ierr);
*interpolation = P;
PetscFunctionReturn(0);
}