mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-10-06 02:18:58 +00:00
588 lines
21 KiB
C++
588 lines
21 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 2015 Sandia Corporation.
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// Copyright 2015 UT-Battelle, LLC.
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// Copyright 2015 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_cont_CellSetExplicit_h
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#define vtk_m_cont_CellSetExplicit_h
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#include <vtkm/CellShape.h>
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#include <vtkm/cont/CellSet.h>
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#include <vtkm/cont/internal/ConnectivityExplicitInternals.h>
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#include <vtkm/exec/ConnectivityExplicit.h>
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#include <vtkm/TopologyElementTag.h>
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#include <vtkm/worklet/WorkletMapField.h>
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#include <vtkm/worklet/DispatcherMapField.h>
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#include <vtkm/exec/ExecutionWholeArray.h>
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#include <vtkm/cont/ArrayHandleCounting.h>
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#include <vtkm/cont/ArrayHandleConstant.h>
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#include <map>
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#include <utility>
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namespace vtkm {
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namespace cont {
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namespace detail {
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template<typename CellSetType, typename FromTopology, typename ToTopology>
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struct CellSetExplicitConnectivityChooser
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{
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typedef vtkm::cont::internal::ConnectivityExplicitInternals<>
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ConnectivityType;
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};
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} // namespace detail
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#ifndef VTKM_DEFAULT_SHAPE_STORAGE_TAG
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#define VTKM_DEFAULT_SHAPE_STORAGE_TAG VTKM_DEFAULT_STORAGE_TAG
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#endif
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#ifndef VTKM_DEFAULT_NUM_INDICES_STORAGE_TAG
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#define VTKM_DEFAULT_NUM_INDICES_STORAGE_TAG VTKM_DEFAULT_STORAGE_TAG
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#endif
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#ifndef VTKM_DEFAULT_CONNECTIVITY_STORAGE_TAG
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#define VTKM_DEFAULT_CONNECTIVITY_STORAGE_TAG VTKM_DEFAULT_STORAGE_TAG
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#endif
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#ifndef VTKM_DEFAULT_OFFSETS_STORAGE_TAG
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#define VTKM_DEFAULT_OFFSETS_STORAGE_TAG VTKM_DEFAULT_STORAGE_TAG
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#endif
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template<typename ShapeStorageTag = VTKM_DEFAULT_SHAPE_STORAGE_TAG,
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typename NumIndicesStorageTag = VTKM_DEFAULT_NUM_INDICES_STORAGE_TAG,
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typename ConnectivityStorageTag = VTKM_DEFAULT_CONNECTIVITY_STORAGE_TAG,
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typename OffsetsStorageTag = VTKM_DEFAULT_OFFSETS_STORAGE_TAG >
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class CellSetExplicit : public CellSet
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{
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typedef CellSetExplicit< ShapeStorageTag,
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NumIndicesStorageTag,
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ConnectivityStorageTag,
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OffsetsStorageTag > Thisclass;
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template<typename FromTopology, typename ToTopology>
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struct ConnectivityChooser
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{
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typedef typename detail::CellSetExplicitConnectivityChooser<
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Thisclass,
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FromTopology,
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ToTopology>::ConnectivityType ConnectivityType;
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typedef typename ConnectivityType::ShapeArrayType ShapeArrayType;
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typedef typename ConnectivityType::NumIndicesArrayType NumIndicesArrayType;
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typedef typename ConnectivityType::ConnectivityArrayType ConnectivityArrayType;
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typedef typename ConnectivityType::IndexOffsetArrayType IndexOffsetArrayType;
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};
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public:
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typedef vtkm::Id SchedulingRangeType;
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//point to cell is used when iterating cells and asking for point properties
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typedef ConnectivityChooser< vtkm::TopologyElementTagPoint,
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vtkm::TopologyElementTagCell > PointToCellConnectivityType;
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typedef typename PointToCellConnectivityType::ShapeArrayType ShapeArrayType;
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typedef typename PointToCellConnectivityType::NumIndicesArrayType NumIndicesArrayType;
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typedef typename PointToCellConnectivityType::ConnectivityArrayType ConnectivityArrayType;
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typedef typename PointToCellConnectivityType::IndexOffsetArrayType IndexOffsetArrayType;
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VTKM_CONT_EXPORT
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CellSetExplicit(vtkm::Id numpoints = 0,
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const std::string &name = std::string(),
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vtkm::IdComponent dimensionality = 3)
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: CellSet(name, dimensionality),
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ConnectivityLength(-1),
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NumberOfCells(-1),
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NumberOfPoints(numpoints)
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{
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}
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VTKM_CONT_EXPORT
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CellSetExplicit(vtkm::Id numpoints, int dimensionality)
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: CellSet(std::string(), dimensionality),
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ConnectivityLength(-1),
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NumberOfCells(-1),
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NumberOfPoints(numpoints)
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{
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}
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VTKM_CONT_EXPORT
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CellSetExplicit(const Thisclass &src)
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: CellSet(src),
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PointToCell(src.PointToCell),
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CellToPoint(src.CellToPoint),
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ConnectivityLength(src.ConnectivityLength),
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NumberOfCells(src.NumberOfCells),
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NumberOfPoints(src.NumberOfPoints)
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{ }
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VTKM_CONT_EXPORT
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Thisclass &operator=(const Thisclass &src)
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{
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this->CellSet::operator=(src);
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this->PointToCell = src.PointToCell;
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this->CellToPoint = src.CellToPoint;
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this->ConnectivityLength = src.ConnectivityLength;
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this->NumberOfCells = src.NumberOfCells;
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this->NumberOfPoints = src.NumberOfPoints;
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return *this;
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}
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virtual ~CellSetExplicit() { }
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virtual vtkm::Id GetNumberOfCells() const
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{
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return this->PointToCell.GetNumberOfElements();
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}
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virtual vtkm::Id GetNumberOfPoints() const
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{
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return this->NumberOfPoints;
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}
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VTKM_CONT_EXPORT
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vtkm::Id GetSchedulingRange(vtkm::TopologyElementTagCell) const
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{
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return this->GetNumberOfCells();
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}
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VTKM_CONT_EXPORT
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vtkm::Id GetSchedulingRange(vtkm::TopologyElementTagPoint) const
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{
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return this->GetNumberOfPoints();
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}
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VTKM_CONT_EXPORT
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vtkm::IdComponent GetNumberOfPointsInCell(vtkm::Id cellIndex) const
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{
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return this->PointToCell.NumIndices.GetPortalConstControl().Get(cellIndex);
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}
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VTKM_CONT_EXPORT
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vtkm::Id GetCellShape(vtkm::Id cellIndex) const
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{
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return this->PointToCell.Shapes.GetPortalConstControl().Get(cellIndex);
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}
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template <vtkm::IdComponent ItemTupleLength>
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VTKM_CONT_EXPORT
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void GetIndices(vtkm::Id index,
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vtkm::Vec<vtkm::Id,ItemTupleLength> &ids) const
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{
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this->PointToCell.BuildIndexOffsets(VTKM_DEFAULT_DEVICE_ADAPTER_TAG());
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vtkm::IdComponent numIndices = this->GetNumberOfPointsInCell(index);
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vtkm::Id start =
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this->PointToCell.IndexOffsets.GetPortalConstControl().Get(index);
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for (vtkm::IdComponent i=0; i<numIndices && i<ItemTupleLength; i++)
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ids[i] = this->PointToCell.Connectivity.GetPortalConstControl().Get(start+i);
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}
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/// First method to add cells -- one at a time.
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VTKM_CONT_EXPORT
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void PrepareToAddCells(vtkm::Id numShapes, vtkm::Id connectivityMaxLen)
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{
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this->PointToCell.Shapes.Allocate(numShapes);
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this->PointToCell.NumIndices.Allocate(numShapes);
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this->PointToCell.Connectivity.Allocate(connectivityMaxLen);
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this->PointToCell.IndexOffsets.Allocate(numShapes);
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this->NumberOfCells = 0;
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this->ConnectivityLength = 0;
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}
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template <vtkm::IdComponent ItemTupleLength>
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VTKM_CONT_EXPORT
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void AddCell(vtkm::UInt8 cellType,
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vtkm::IdComponent numVertices,
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const vtkm::Vec<vtkm::Id,ItemTupleLength> &ids)
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{
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this->PointToCell.Shapes.GetPortalControl().Set(this->NumberOfCells, cellType);
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this->PointToCell.NumIndices.GetPortalControl().Set(this->NumberOfCells, numVertices);
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for (vtkm::IdComponent i=0; i < numVertices; ++i)
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{
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this->PointToCell.Connectivity.GetPortalControl().Set(
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this->ConnectivityLength+i,ids[i]);
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}
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this->PointToCell.IndexOffsets.GetPortalControl().Set(
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this->NumberOfCells, this->ConnectivityLength);
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this->NumberOfCells++;
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this->ConnectivityLength += numVertices;
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}
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VTKM_CONT_EXPORT
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void CompleteAddingCells()
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{
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this->PointToCell.Connectivity.Shrink(ConnectivityLength);
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this->PointToCell.ElementsValid = true;
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this->NumberOfCells = this->ConnectivityLength = -1;
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}
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/// Second method to add cells -- all at once.
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/// Copies the data from the vectors, so they can be released.
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VTKM_CONT_EXPORT
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void FillViaCopy(const std::vector<vtkm::UInt8> &cellTypes,
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const std::vector<vtkm::IdComponent> &numIndices,
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const std::vector<vtkm::Id> &connectivity,
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const std::vector<vtkm::Id> &offsets = std::vector<vtkm::Id>() )
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{
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this->PointToCell.Shapes.Allocate( static_cast<vtkm::Id>(cellTypes.size()) );
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std::copy(cellTypes.begin(), cellTypes.end(),
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vtkm::cont::ArrayPortalToIteratorBegin(
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this->PointToCell.Shapes.GetPortalControl()));
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this->PointToCell.NumIndices.Allocate( static_cast<vtkm::IdComponent>(numIndices.size()) );
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std::copy(numIndices.begin(), numIndices.end(),
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vtkm::cont::ArrayPortalToIteratorBegin(
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this->PointToCell.NumIndices.GetPortalControl()));
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this->PointToCell.Connectivity.Allocate( static_cast<vtkm::Id>(connectivity.size()) );
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std::copy(connectivity.begin(), connectivity.end(),
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vtkm::cont::ArrayPortalToIteratorBegin(
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this->PointToCell.Connectivity.GetPortalControl()));
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this->PointToCell.ElementsValid = true;
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if(offsets.size() == cellTypes.size())
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{
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this->PointToCell.IndexOffsets.Allocate( static_cast<vtkm::Id>(offsets.size()) );
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std::copy(offsets.begin(), offsets.end(),
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vtkm::cont::ArrayPortalToIteratorBegin(
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this->PointToCell.IndexOffsets.GetPortalControl()));
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this->PointToCell.IndexOffsetsValid = true;
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}
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else
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{
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this->PointToCell.IndexOffsetsValid = false;
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if (offsets.size() != 0)
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{
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throw vtkm::cont::ErrorControlBadValue(
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"Explicit cell offsets array unexpected size. "
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"Use an empty array to automatically generate.");
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}
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}
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}
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/// Second method to add cells -- all at once.
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/// Assigns the array handles to the explicit connectivity. This is
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/// the way you can fill the memory from another system without copying
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VTKM_CONT_EXPORT
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void Fill(const vtkm::cont::ArrayHandle<vtkm::UInt8, ShapeStorageTag> &cellTypes,
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const vtkm::cont::ArrayHandle<vtkm::IdComponent, NumIndicesStorageTag> &numIndices,
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const vtkm::cont::ArrayHandle<vtkm::Id, ConnectivityStorageTag> &connectivity,
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const vtkm::cont::ArrayHandle<vtkm::Id, OffsetsStorageTag> &offsets
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= vtkm::cont::ArrayHandle<vtkm::Id, OffsetsStorageTag>() )
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{
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this->PointToCell.Shapes = cellTypes;
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this->PointToCell.NumIndices = numIndices;
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this->PointToCell.Connectivity = connectivity;
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this->PointToCell.ElementsValid = true;
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if(offsets.GetNumberOfValues() == cellTypes.GetNumberOfValues())
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{
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this->PointToCell.IndexOffsets = offsets;
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this->PointToCell.IndexOffsetsValid = true;
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}
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else
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{
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this->PointToCell.IndexOffsetsValid = false;
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if (offsets.GetNumberOfValues() != 0)
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{
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throw vtkm::cont::ErrorControlBadValue(
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"Explicit cell offsets array unexpected size. "
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"Use an empty array to automatically generate.");
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}
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}
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}
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template <typename DeviceAdapter, typename FromTopology, typename ToTopology>
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struct ExecutionTypes
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{
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VTKM_IS_DEVICE_ADAPTER_TAG(DeviceAdapter);
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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 ConnectivityChooser<FromTopology,ToTopology> ConnectivityTypes;
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typedef typename ConnectivityTypes::ShapeArrayType::template ExecutionTypes<DeviceAdapter>::PortalConst ShapePortalType;
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typedef typename ConnectivityTypes::NumIndicesArrayType::template ExecutionTypes<DeviceAdapter>::PortalConst IndicePortalType;
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typedef typename ConnectivityTypes::ConnectivityArrayType::template ExecutionTypes<DeviceAdapter>::PortalConst ConnectivityPortalType;
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typedef typename ConnectivityTypes::IndexOffsetArrayType::template ExecutionTypes<DeviceAdapter>::PortalConst IndexOffsetPortalType;
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typedef vtkm::exec::ConnectivityExplicit<ShapePortalType,
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IndicePortalType,
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ConnectivityPortalType,
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IndexOffsetPortalType
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> ExecObjectType;
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};
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template<typename Device, typename FromTopology, typename ToTopology>
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typename ExecutionTypes<Device,FromTopology,ToTopology>::ExecObjectType
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PrepareForInput(Device, FromTopology, ToTopology) const
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{
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this->BuildConnectivity(Device(), FromTopology(), ToTopology());
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const typename
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ConnectivityChooser<FromTopology,ToTopology>::ConnectivityType
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&connectivity = this->GetConnectivity(FromTopology(), ToTopology());
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VTKM_ASSERT_CONT(connectivity.ElementsValid);
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typedef typename
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ExecutionTypes<Device,FromTopology,ToTopology>::ExecObjectType
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ExecObjType;
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return ExecObjType(connectivity.Shapes.PrepareForInput(Device()),
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connectivity.NumIndices.PrepareForInput(Device()),
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connectivity.Connectivity.PrepareForInput(Device()),
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connectivity.IndexOffsets.PrepareForInput(Device()));
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}
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template<typename Device, typename FromTopology, typename ToTopology>
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VTKM_CONT_EXPORT
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void BuildConnectivity(Device, FromTopology, ToTopology) const
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{
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typedef CellSetExplicit<ShapeStorageTag,
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NumIndicesStorageTag,
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ConnectivityStorageTag,
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OffsetsStorageTag> CSE;
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CSE *self = const_cast<CSE*>(this);
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self->CreateConnectivity(Device(), FromTopology(), ToTopology());
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self->GetConnectivity(FromTopology(), ToTopology()).
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BuildIndexOffsets(Device());
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}
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template<typename Device>
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VTKM_CONT_EXPORT
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void CreateConnectivity(Device,
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vtkm::TopologyElementTagPoint,
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vtkm::TopologyElementTagCell)
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{
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// nothing to do
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}
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// Worklet to expand the PointToCell numIndices array by repeating cell index
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class ExpandIndices : public vtkm::worklet::WorkletMapField
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{
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public:
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typedef void ControlSignature(FieldIn<> cellIndex,
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FieldIn<> offset,
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FieldIn<> numIndices,
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ExecObject cellIndices);
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typedef void ExecutionSignature(_1,_2,_3,_4);
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typedef _1 InputDomain;
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VTKM_CONT_EXPORT
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ExpandIndices() {}
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VTKM_EXEC_EXPORT
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void operator()(const vtkm::Id &cellIndex,
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const vtkm::Id &offset,
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const vtkm::Id &numIndices,
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vtkm::exec::ExecutionWholeArray<vtkm::Id> &cellIndices) const
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{
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vtkm::Id startIndex = offset;
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for (vtkm::Id i = 0; i < numIndices; i++)
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{
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cellIndices.Set(startIndex++, cellIndex);
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}
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}
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};
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template<typename Device>
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VTKM_CONT_EXPORT
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void CreateConnectivity(Device,
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vtkm::TopologyElementTagCell,
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vtkm::TopologyElementTagPoint)
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{
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// PointToCell connectivity array (point indices) will be
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// transformed into the CellToPoint numIndices array using reduction
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//
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// PointToCell numIndices array using expansion will be
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// transformed into the CellToPoint connectivity array
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if (this->CellToPoint.ElementsValid)
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{
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return;
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}
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typedef vtkm::cont::DeviceAdapterAlgorithm<Device> Algorithm;
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// Sizes of the PointToCell information
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vtkm::Id numberOfCells = this->GetNumberOfCells();
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vtkm::Id connectivityLength = this->PointToCell.Connectivity.GetNumberOfValues();
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// PointToCell connectivity will be basis of CellToPoint numIndices
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vtkm::cont::ArrayHandle<vtkm::Id> pointIndices;
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Algorithm::Copy(this->PointToCell.Connectivity, pointIndices);
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// PointToCell numIndices will be basis of CellToPoint connectivity
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vtkm::cont::ArrayHandle<vtkm::Id> cellIndices;
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cellIndices.Allocate(connectivityLength);
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vtkm::cont::ArrayHandleCounting<vtkm::Id> index(0, 1, numberOfCells);
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vtkm::worklet::DispatcherMapField<ExpandIndices> expandDispatcher;
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expandDispatcher.Invoke(index,
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this->PointToCell.IndexOffsets,
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this->PointToCell.NumIndices,
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vtkm::exec::ExecutionWholeArray<vtkm::Id>(cellIndices, connectivityLength));
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// SortByKey where key is PointToCell connectivity and value is the expanded cellIndex
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Algorithm::SortByKey(pointIndices, cellIndices);
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if(this->GetNumberOfPoints() <= 0)
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{
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this->NumberOfPoints = pointIndices.GetPortalControl().Get(connectivityLength - 1) + 1;
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}
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vtkm::Id numberOfPoints = this->GetNumberOfPoints();
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// CellToPoint numIndices from the now sorted PointToCell connectivity
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vtkm::cont::ArrayHandleConstant<vtkm::Id> numArray(1, connectivityLength);
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vtkm::cont::ArrayHandle<vtkm::Id> uniquePoints;
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vtkm::cont::ArrayHandle<vtkm::Id> numIndices;
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vtkm::cont::ArrayHandle<vtkm::Id> shapes;
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uniquePoints.Allocate(numberOfPoints);
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numIndices.Allocate(numberOfPoints);
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shapes.Allocate(numberOfPoints);
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Algorithm::ReduceByKey(pointIndices, numArray,
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uniquePoints, numIndices,
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vtkm::internal::Add());
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// Set the CellToPoint information
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vtkm::cont::ArrayHandleConstant<vtkm::Id> shapeArray(CELL_SHAPE_VERTEX, numberOfPoints);
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Algorithm::Copy(shapeArray, this->CellToPoint.Shapes);
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Algorithm::Copy(numIndices, this->CellToPoint.NumIndices);
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Algorithm::Copy(cellIndices, this->CellToPoint.Connectivity);
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this->CellToPoint.ElementsValid = true;
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this->CellToPoint.IndexOffsetsValid = false;
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}
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virtual void PrintSummary(std::ostream &out) const
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{
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out << " ExplicitCellSet: " << this->Name
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<< " dim= " << this->Dimensionality << std::endl;
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out << " PointToCell: " << std::endl;
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|
this->PointToCell.PrintSummary(out);
|
|
out << " CellToPoint: " << std::endl;
|
|
this->CellToPoint.PrintSummary(out);
|
|
}
|
|
|
|
template<typename FromTopology, typename ToTopology>
|
|
VTKM_CONT_EXPORT
|
|
const typename ConnectivityChooser<FromTopology,ToTopology>::ShapeArrayType &
|
|
GetShapesArray(FromTopology,ToTopology) const
|
|
{
|
|
return this->GetConnectivity(FromTopology(), ToTopology()).Shapes;
|
|
}
|
|
|
|
template<typename FromTopology, typename ToTopology>
|
|
VTKM_CONT_EXPORT
|
|
const typename ConnectivityChooser<FromTopology,ToTopology>::NumIndicesArrayType &
|
|
GetNumIndicesArray(FromTopology,ToTopology) const
|
|
{
|
|
return this->GetConnectivity(FromTopology(), ToTopology()).NumIndices;
|
|
}
|
|
|
|
template<typename FromTopology, typename ToTopology>
|
|
VTKM_CONT_EXPORT
|
|
const typename ConnectivityChooser<FromTopology,ToTopology>::ConnectivityArrayType &
|
|
GetConnectivityArray(FromTopology,ToTopology) const
|
|
{
|
|
return this->GetConnectivity(FromTopology(), ToTopology()).Connectivity;
|
|
}
|
|
|
|
template<typename FromTopology, typename ToTopology>
|
|
VTKM_CONT_EXPORT
|
|
const typename ConnectivityChooser<FromTopology,ToTopology>::IndexOffsetArrayType &
|
|
GetIndexOffsetArray(FromTopology,ToTopology) const
|
|
{
|
|
return this->GetConnectivity(FromTopology(), ToTopology()).IndexOffsets;
|
|
}
|
|
|
|
protected:
|
|
typename ConnectivityChooser<
|
|
vtkm::TopologyElementTagPoint,vtkm::TopologyElementTagCell>::
|
|
ConnectivityType PointToCell;
|
|
|
|
// TODO: Actually implement CellToPoint and other connectivity. (That is,
|
|
// derive the connectivity from PointToCell.
|
|
typename ConnectivityChooser<
|
|
vtkm::TopologyElementTagCell,vtkm::TopologyElementTagPoint>::
|
|
ConnectivityType CellToPoint;
|
|
private:
|
|
|
|
// A set of overloaded methods to get the connectivity from a pair of
|
|
// topology element types.
|
|
#define VTKM_GET_CONNECTIVITY_METHOD(FromTopology,ToTopology,Ivar) \
|
|
VTKM_CONT_EXPORT \
|
|
const typename ConnectivityChooser< \
|
|
FromTopology,ToTopology>::ConnectivityType & \
|
|
GetConnectivity(FromTopology, ToTopology) const \
|
|
{ \
|
|
return this->Ivar; \
|
|
} \
|
|
VTKM_CONT_EXPORT \
|
|
typename ConnectivityChooser< \
|
|
FromTopology,ToTopology>::ConnectivityType & \
|
|
GetConnectivity(FromTopology, ToTopology) \
|
|
{ \
|
|
return this->Ivar; \
|
|
}
|
|
|
|
VTKM_GET_CONNECTIVITY_METHOD(vtkm::TopologyElementTagPoint,
|
|
vtkm::TopologyElementTagCell,
|
|
PointToCell)
|
|
VTKM_GET_CONNECTIVITY_METHOD(vtkm::TopologyElementTagCell,
|
|
vtkm::TopologyElementTagPoint,
|
|
CellToPoint)
|
|
|
|
#undef VTKM_GET_CONNECTIVITY_METHOD
|
|
|
|
// These are used in the AddCell and related methods to incrementally add
|
|
// cells.
|
|
vtkm::Id ConnectivityLength;
|
|
vtkm::Id NumberOfCells;
|
|
vtkm::Id NumberOfPoints;
|
|
};
|
|
|
|
namespace detail {
|
|
|
|
template<typename Storage1, typename Storage2, typename Storage3, typename Storage4>
|
|
struct CellSetExplicitConnectivityChooser<
|
|
vtkm::cont::CellSetExplicit<Storage1,Storage2,Storage3,Storage4>,
|
|
vtkm::TopologyElementTagPoint,
|
|
vtkm::TopologyElementTagCell>
|
|
{
|
|
typedef vtkm::cont::internal::ConnectivityExplicitInternals<
|
|
Storage1,Storage2,Storage3,Storage4> ConnectivityType;
|
|
};
|
|
|
|
} // namespace detail
|
|
|
|
}
|
|
} // namespace vtkm::cont
|
|
|
|
#endif //vtk_m_cont_CellSetExplicit_h
|