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When you create a CellSetPermutation you provide an array of the cell ids that you want to iterate. This allows the user to do custom blanking of a data set, or to do multi iteration over a set of cells.
100 lines
2.9 KiB
C++
100 lines
2.9 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//
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// Copyright 2014 Sandia Corporation.
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// Copyright 2014 UT-Battelle, LLC.
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// Copyright 2014 Los Alamos National Security.
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//
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// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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// the U.S. Government retains certain rights in this software.
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//
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// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
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// Laboratory (LANL), the U.S. Government retains certain rights in
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// this software.
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//============================================================================
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#ifndef vtk_m_exec_ConnectivityStructuredPermuted_h
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#define vtk_m_exec_ConnectivityStructuredPermuted_h
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#include <vtkm/TopologyElementTag.h>
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#include <vtkm/Types.h>
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#include <vtkm/exec/ConnectivityStructured.h>
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namespace vtkm {
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namespace exec {
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template<typename PermutationPortal,
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typename FromTopology,
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typename ToTopology,
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vtkm::IdComponent Dimension>
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class ConnectivityStructuredPermuted
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{
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VTKM_IS_TOPOLOGY_ELEMENT_TAG(FromTopology);
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VTKM_IS_TOPOLOGY_ELEMENT_TAG(ToTopology);
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typedef vtkm::exec::ConnectivityStructured<FromTopology,
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ToTopology,
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Dimension> StructuredType;
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public:
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typedef vtkm::Id SchedulingRangeType;
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VTKM_EXEC_CONT_EXPORT
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ConnectivityStructuredPermuted():
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Portal(),
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FullStructuredGrid()
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{
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}
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VTKM_EXEC_CONT_EXPORT
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ConnectivityStructuredPermuted(const PermutationPortal& portal,
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const StructuredType &src):
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Portal(portal),
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FullStructuredGrid(src)
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{
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}
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VTKM_EXEC_CONT_EXPORT
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ConnectivityStructuredPermuted(const ConnectivityStructuredPermuted &src):
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Portal(src.Portal),
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FullStructuredGrid(src.FullStructuredGrid)
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{
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}
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VTKM_EXEC_EXPORT
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vtkm::IdComponent GetNumberOfIndices(vtkm::Id index) const {
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return this->FullStructuredGrid.GetNumberOfIndices( this->Portal.Get(index) );
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}
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// This needs some thought. What does cell shape mean when the to topology
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// is not a cell?
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typedef typename StructuredType::CellShapeTag CellShapeTag;
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VTKM_EXEC_EXPORT
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CellShapeTag GetCellShape(vtkm::Id=0) const {
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return CellShapeTag();
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}
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typedef typename StructuredType::IndicesType IndicesType;
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VTKM_EXEC_EXPORT
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IndicesType GetIndices(vtkm::Id index) const
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{
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return this->FullStructuredGrid.GetIndices( this->Portal.Get(index) );
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}
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private:
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PermutationPortal Portal;
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StructuredType FullStructuredGrid;
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};
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}
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} // namespace vtkm::exec
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#endif //vtk_m_exec_ConnectivityStructuredPermuted_h
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