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https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-19 18:45:43 +00:00
5db762ee71
The `From` and `To` nomenclature for topology mapping has been confusing for both users and developers, especially at lower levels where the intention of mapping attributes from one element to another is easily conflated with the concept of mapping indices (which maps in the exact opposite direction). These identifiers have been renamed to `VisitTopology` and `IncidentTopology` to clarify the direction of the mapping. The order in which these template parameters are specified for `WorkletMapTopology` have also been reversed, since eventually there may be more than one `IncidentTopology`, and having `IncidentTopology` at the end will allow us to replace it with a variadic template parameter pack in the future. Other implementation details supporting these worklets, include `Fetch` tags, `Connectivity` classes, and methods on the various `CellSet` classes (such as `PrepareForInput` have also reversed their template arguments. These will need to be cautiously updated. The convenience implementations of `WorkletMapTopology` have been renamed for clarity as follows: ``` WorkletMapPointToCell --> WorkletVisitCellsWithPoints WorkletMapCellToPoint --> WorkletVisitPointsWithCells ``` The `ControlSignature` tags have been renamed as follows: ``` FieldInTo --> FieldInVisit FieldInFrom --> FieldInMap FromCount --> IncidentElementCount FromIndices --> IncidentElementIndices ```
452 lines
16 KiB
C++
452 lines
16 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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//
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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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#ifndef vtk_m_rendering_Cylinderizer_h
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#define vtk_m_rendering_Cylinderizer_h
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#include <typeinfo>
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#include <vtkm/cont/Algorithm.h>
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#include <vtkm/cont/ArrayHandleCounting.h>
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#include <vtkm/cont/CellSetPermutation.h>
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#include <vtkm/cont/DataSet.h>
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#include <vtkm/rendering/raytracing/MeshConnectivityBuilder.h>
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#include <vtkm/worklet/DispatcherMapTopology.h>
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#include <vtkm/worklet/WorkletMapField.h>
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#include <vtkm/worklet/WorkletMapTopology.h>
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#define SEG_PER_TRI 3
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//CSS is CellSetStructured
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#define TRI_PER_CSS 12
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namespace vtkm
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{
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namespace rendering
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{
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class Cylinderizer
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{
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public:
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class CountSegments : public vtkm::worklet::WorkletVisitCellsWithPoints
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{
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public:
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VTKM_CONT
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CountSegments() {}
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typedef void ControlSignature(CellSetIn cellset, FieldOut);
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typedef void ExecutionSignature(CellShape, _2);
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VTKM_EXEC
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void operator()(vtkm::CellShapeTagGeneric shapeType, vtkm::Id& segments) const
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{
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if (shapeType.Id == vtkm::CELL_SHAPE_LINE)
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segments = 1;
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else if (shapeType.Id == vtkm::CELL_SHAPE_TRIANGLE)
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segments = 3;
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else if (shapeType.Id == vtkm::CELL_SHAPE_QUAD)
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segments = 4;
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else if (shapeType.Id == vtkm::CELL_SHAPE_TETRA)
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segments = 12;
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else if (shapeType.Id == vtkm::CELL_SHAPE_WEDGE)
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segments = 24;
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else if (shapeType.Id == vtkm::CELL_SHAPE_PYRAMID)
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segments = 18;
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else if (shapeType.Id == vtkm::CELL_SHAPE_HEXAHEDRON)
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segments = 36;
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else
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segments = 0;
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}
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VTKM_EXEC
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void operator()(vtkm::CellShapeTagHexahedron vtkmNotUsed(shapeType), vtkm::Id& segments) const
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{
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segments = 36;
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}
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VTKM_EXEC
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void operator()(vtkm::CellShapeTagQuad vtkmNotUsed(shapeType), vtkm::Id& segments) const
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{
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segments = 4;
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}
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VTKM_EXEC
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void operator()(vtkm::CellShapeTagWedge vtkmNotUsed(shapeType), vtkm::Id& segments) const
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{
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segments = 24;
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}
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}; //class CountSegments
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template <int DIM>
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class SegmentedStructured : public vtkm::worklet::WorkletVisitCellsWithPoints
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{
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public:
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typedef void ControlSignature(CellSetIn cellset, FieldInCell, WholeArrayOut);
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typedef void ExecutionSignature(IncidentElementIndices, _2, _3);
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//typedef _1 InputDomain;
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VTKM_CONT
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SegmentedStructured() {}
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#if defined(VTKM_MSVC)
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#pragma warning(push)
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#pragma warning(disable : 4127) //conditional expression is constant
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#endif
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template <typename CellNodeVecType, typename OutIndicesPortal>
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VTKM_EXEC void cell2seg(vtkm::Id3 idx,
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vtkm::Vec<Id, 3>& segment,
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const vtkm::Id offset,
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const CellNodeVecType& cellIndices,
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OutIndicesPortal& outputIndices) const
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{
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segment[1] = cellIndices[vtkm::IdComponent(idx[0])];
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segment[2] = cellIndices[vtkm::IdComponent(idx[1])];
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outputIndices.Set(offset, segment);
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segment[1] = cellIndices[vtkm::IdComponent(idx[1])];
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segment[2] = cellIndices[vtkm::IdComponent(idx[2])];
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outputIndices.Set(offset + 1, segment);
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segment[1] = cellIndices[vtkm::IdComponent(idx[2])];
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segment[2] = cellIndices[vtkm::IdComponent(idx[0])];
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outputIndices.Set(offset + 2, segment);
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}
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template <typename CellNodeVecType, typename OutIndicesPortal>
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VTKM_EXEC void operator()(const CellNodeVecType& cellIndices,
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const vtkm::Id& cellIndex,
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OutIndicesPortal& outputIndices) const
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{
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if (DIM == 2)
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{
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// Do nothing mark says
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}
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else if (DIM == 3)
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{
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vtkm::Id offset = cellIndex * TRI_PER_CSS * SEG_PER_TRI;
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vtkm::Id3 segment;
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segment[0] = cellIndex;
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vtkm::Id3 idx;
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idx[0] = 0;
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idx[1] = 1;
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idx[2] = 5;
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cell2seg(idx, segment, offset, cellIndices, outputIndices);
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idx[0] = 0;
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idx[1] = 5;
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idx[2] = 4;
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offset += 3;
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cell2seg(idx, segment, offset, cellIndices, outputIndices);
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idx[0] = 1;
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idx[1] = 2;
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idx[2] = 6;
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offset += 3;
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cell2seg(idx, segment, offset, cellIndices, outputIndices);
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idx[0] = 1;
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idx[1] = 6;
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idx[2] = 5;
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offset += 3;
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cell2seg(idx, segment, offset, cellIndices, outputIndices);
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idx[0] = 3;
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idx[1] = 7;
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idx[2] = 6;
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offset += 3;
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cell2seg(idx, segment, offset, cellIndices, outputIndices);
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idx[0] = 3;
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idx[1] = 6;
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idx[2] = 2;
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offset += 3;
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cell2seg(idx, segment, offset, cellIndices, outputIndices);
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idx[0] = 0;
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idx[1] = 4;
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idx[2] = 7;
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offset += 3;
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cell2seg(idx, segment, offset, cellIndices, outputIndices);
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idx[0] = 0;
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idx[1] = 7;
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idx[2] = 3;
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offset += 3;
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cell2seg(idx, segment, offset, cellIndices, outputIndices);
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idx[0] = 0;
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idx[1] = 3;
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idx[2] = 2;
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offset += 3;
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cell2seg(idx, segment, offset, cellIndices, outputIndices);
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idx[0] = 0;
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idx[1] = 2;
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idx[2] = 1;
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offset += 3;
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cell2seg(idx, segment, offset, cellIndices, outputIndices);
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idx[0] = 4;
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idx[1] = 5;
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idx[2] = 6;
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offset += 3;
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cell2seg(idx, segment, offset, cellIndices, outputIndices);
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idx[0] = 4;
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idx[1] = 6;
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idx[2] = 7;
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offset += 3;
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cell2seg(idx, segment, offset, cellIndices, outputIndices);
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}
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}
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#if defined(VTKM_MSVC)
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#pragma warning(pop)
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#endif
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};
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class Cylinderize : public vtkm::worklet::WorkletVisitCellsWithPoints
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{
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public:
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VTKM_CONT
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Cylinderize() {}
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typedef void ControlSignature(CellSetIn cellset, FieldInCell, WholeArrayOut);
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typedef void ExecutionSignature(_2, CellShape, PointIndices, WorkIndex, _3);
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template <typename VecType, typename OutputPortal>
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VTKM_EXEC void tri2seg(vtkm::Id& offset,
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const VecType& cellIndices,
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const vtkm::Id& cellId,
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const vtkm::Id Id0,
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const vtkm::Id Id1,
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const vtkm::Id Id2,
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OutputPortal& outputIndices) const
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{
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vtkm::Id3 segment;
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segment[0] = cellId;
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segment[1] = vtkm::Id(cellIndices[vtkm::IdComponent(Id0)]);
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segment[2] = vtkm::Id(cellIndices[vtkm::IdComponent(Id1)]);
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outputIndices.Set(offset++, segment);
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segment[1] = vtkm::Id(cellIndices[vtkm::IdComponent(Id1)]);
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segment[2] = vtkm::Id(cellIndices[vtkm::IdComponent(Id2)]);
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outputIndices.Set(offset++, segment);
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segment[1] = vtkm::Id(cellIndices[vtkm::IdComponent(Id2)]);
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segment[2] = vtkm::Id(cellIndices[vtkm::IdComponent(Id0)]);
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outputIndices.Set(offset++, segment);
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}
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template <typename VecType, typename OutputPortal>
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VTKM_EXEC void operator()(const vtkm::Id& offset,
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vtkm::CellShapeTagQuad shapeType,
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const VecType& cellIndices,
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const vtkm::Id& cellId,
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OutputPortal& outputIndices) const
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{
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if (shapeType.Id == vtkm::CELL_SHAPE_QUAD)
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{
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vtkm::Id3 segment;
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segment[0] = cellId;
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segment[1] = cellIndices[0];
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segment[2] = cellIndices[1];
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outputIndices.Set(offset, segment);
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segment[1] = cellIndices[1];
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segment[2] = cellIndices[2];
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outputIndices.Set(offset + 1, segment);
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segment[1] = cellIndices[2];
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segment[2] = cellIndices[3];
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outputIndices.Set(offset + 2, segment);
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segment[1] = cellIndices[3];
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segment[2] = cellIndices[0];
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outputIndices.Set(offset + 3, segment);
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}
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}
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template <typename VecType, typename OutputPortal>
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VTKM_EXEC void operator()(const vtkm::Id& pointOffset,
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vtkm::CellShapeTagHexahedron vtkmNotUsed(shapeType),
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const VecType& cellIndices,
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const vtkm::Id& cellId,
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OutputPortal& outputIndices) const
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{
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vtkm::Id offset = pointOffset;
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tri2seg(offset, cellIndices, cellId, 0, 1, 5, outputIndices);
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tri2seg(offset, cellIndices, cellId, 0, 5, 4, outputIndices);
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tri2seg(offset, cellIndices, cellId, 1, 2, 6, outputIndices);
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tri2seg(offset, cellIndices, cellId, 1, 6, 5, outputIndices);
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tri2seg(offset, cellIndices, cellId, 3, 7, 6, outputIndices);
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tri2seg(offset, cellIndices, cellId, 3, 6, 2, outputIndices);
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tri2seg(offset, cellIndices, cellId, 0, 4, 7, outputIndices);
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tri2seg(offset, cellIndices, cellId, 0, 7, 3, outputIndices);
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tri2seg(offset, cellIndices, cellId, 0, 3, 2, outputIndices);
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tri2seg(offset, cellIndices, cellId, 0, 2, 1, outputIndices);
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tri2seg(offset, cellIndices, cellId, 4, 5, 6, outputIndices);
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tri2seg(offset, cellIndices, cellId, 4, 6, 7, outputIndices);
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}
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template <typename VecType, typename OutputPortal>
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VTKM_EXEC void operator()(const vtkm::Id& pointOffset,
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vtkm::CellShapeTagWedge vtkmNotUsed(shapeType),
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const VecType& cellIndices,
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const vtkm::Id& cellId,
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OutputPortal& outputIndices) const
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{
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vtkm::Id offset = pointOffset;
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tri2seg(offset, cellIndices, cellId, 0, 1, 2, outputIndices);
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tri2seg(offset, cellIndices, cellId, 3, 5, 4, outputIndices);
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tri2seg(offset, cellIndices, cellId, 3, 0, 2, outputIndices);
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tri2seg(offset, cellIndices, cellId, 3, 2, 5, outputIndices);
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tri2seg(offset, cellIndices, cellId, 1, 4, 5, outputIndices);
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tri2seg(offset, cellIndices, cellId, 1, 5, 2, outputIndices);
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tri2seg(offset, cellIndices, cellId, 0, 3, 4, outputIndices);
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tri2seg(offset, cellIndices, cellId, 0, 4, 1, outputIndices);
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}
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template <typename VecType, typename OutputPortal>
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VTKM_EXEC void operator()(const vtkm::Id& pointOffset,
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vtkm::CellShapeTagGeneric shapeType,
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const VecType& cellIndices,
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const vtkm::Id& cellId,
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OutputPortal& outputIndices) const
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{
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if (shapeType.Id == vtkm::CELL_SHAPE_LINE)
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{
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vtkm::Id3 segment;
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segment[0] = cellId;
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segment[1] = cellIndices[0];
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segment[2] = cellIndices[1];
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outputIndices.Set(pointOffset, segment);
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}
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if (shapeType.Id == vtkm::CELL_SHAPE_TRIANGLE)
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{
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vtkm::Id3 segment;
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segment[0] = cellId;
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segment[1] = cellIndices[0];
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segment[2] = cellIndices[1];
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outputIndices.Set(pointOffset, segment);
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segment[1] = cellIndices[1];
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segment[2] = cellIndices[2];
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outputIndices.Set(pointOffset + 1, segment);
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segment[1] = cellIndices[2];
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segment[2] = cellIndices[0];
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outputIndices.Set(pointOffset + 2, segment);
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}
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if (shapeType.Id == vtkm::CELL_SHAPE_QUAD)
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{
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vtkm::Id3 segment;
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segment[0] = cellId;
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segment[1] = cellIndices[0];
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segment[2] = cellIndices[1];
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outputIndices.Set(pointOffset, segment);
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segment[1] = cellIndices[1];
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segment[2] = cellIndices[2];
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outputIndices.Set(pointOffset + 1, segment);
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segment[1] = cellIndices[2];
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segment[2] = cellIndices[3];
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outputIndices.Set(pointOffset + 2, segment);
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segment[1] = cellIndices[3];
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segment[2] = cellIndices[0];
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outputIndices.Set(pointOffset + 3, segment);
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}
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if (shapeType.Id == vtkm::CELL_SHAPE_TETRA)
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{
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vtkm::Id offset = pointOffset;
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tri2seg(offset, cellIndices, cellId, 0, 3, 1, outputIndices);
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tri2seg(offset, cellIndices, cellId, 1, 2, 3, outputIndices);
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tri2seg(offset, cellIndices, cellId, 0, 2, 3, outputIndices);
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tri2seg(offset, cellIndices, cellId, 0, 2, 1, outputIndices);
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}
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if (shapeType.Id == vtkm::CELL_SHAPE_HEXAHEDRON)
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{
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vtkm::Id offset = pointOffset;
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tri2seg(offset, cellIndices, cellId, 0, 1, 5, outputIndices);
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tri2seg(offset, cellIndices, cellId, 0, 5, 4, outputIndices);
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tri2seg(offset, cellIndices, cellId, 1, 2, 6, outputIndices);
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tri2seg(offset, cellIndices, cellId, 1, 6, 5, outputIndices);
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tri2seg(offset, cellIndices, cellId, 3, 7, 6, outputIndices);
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tri2seg(offset, cellIndices, cellId, 3, 6, 2, outputIndices);
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tri2seg(offset, cellIndices, cellId, 0, 4, 7, outputIndices);
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tri2seg(offset, cellIndices, cellId, 0, 7, 3, outputIndices);
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tri2seg(offset, cellIndices, cellId, 0, 3, 2, outputIndices);
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tri2seg(offset, cellIndices, cellId, 0, 2, 1, outputIndices);
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tri2seg(offset, cellIndices, cellId, 4, 5, 6, outputIndices);
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tri2seg(offset, cellIndices, cellId, 4, 6, 7, outputIndices);
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}
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if (shapeType.Id == vtkm::CELL_SHAPE_WEDGE)
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{
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vtkm::Id offset = pointOffset;
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tri2seg(offset, cellIndices, cellId, 0, 1, 2, outputIndices);
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tri2seg(offset, cellIndices, cellId, 3, 5, 4, outputIndices);
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tri2seg(offset, cellIndices, cellId, 3, 0, 2, outputIndices);
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tri2seg(offset, cellIndices, cellId, 3, 2, 5, outputIndices);
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tri2seg(offset, cellIndices, cellId, 1, 4, 5, outputIndices);
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tri2seg(offset, cellIndices, cellId, 1, 5, 2, outputIndices);
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tri2seg(offset, cellIndices, cellId, 0, 3, 4, outputIndices);
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tri2seg(offset, cellIndices, cellId, 0, 4, 1, outputIndices);
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}
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if (shapeType.Id == vtkm::CELL_SHAPE_PYRAMID)
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{
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vtkm::Id offset = pointOffset;
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tri2seg(offset, cellIndices, cellId, 0, 4, 1, outputIndices);
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tri2seg(offset, cellIndices, cellId, 1, 2, 4, outputIndices);
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tri2seg(offset, cellIndices, cellId, 2, 3, 4, outputIndices);
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tri2seg(offset, cellIndices, cellId, 0, 4, 3, outputIndices);
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tri2seg(offset, cellIndices, cellId, 3, 2, 1, outputIndices);
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tri2seg(offset, cellIndices, cellId, 3, 1, 0, outputIndices);
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}
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}
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}; //class cylinderize
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public:
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VTKM_CONT
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Cylinderizer() {}
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VTKM_CONT
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void Run(const vtkm::cont::DynamicCellSet& cellset,
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vtkm::cont::ArrayHandle<vtkm::Id3>& outputIndices,
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vtkm::Id& output)
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{
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if (cellset.IsSameType(vtkm::cont::CellSetStructured<3>()))
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{
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vtkm::cont::CellSetStructured<3> cellSetStructured3D =
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cellset.Cast<vtkm::cont::CellSetStructured<3>>();
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const vtkm::Id numCells = cellSetStructured3D.GetNumberOfCells();
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vtkm::cont::ArrayHandleCounting<vtkm::Id> cellIdxs(0, 1, numCells);
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outputIndices.Allocate(numCells * TRI_PER_CSS * SEG_PER_TRI);
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vtkm::worklet::DispatcherMapTopology<SegmentedStructured<3>> segInvoker;
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segInvoker.Invoke(cellSetStructured3D, cellIdxs, outputIndices);
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output = numCells * TRI_PER_CSS * SEG_PER_TRI;
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}
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else
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{
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vtkm::cont::ArrayHandle<vtkm::Id> segmentsPerCell;
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vtkm::worklet::DispatcherMapTopology<CountSegments> countInvoker;
|
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countInvoker.Invoke(cellset, segmentsPerCell);
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|
|
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vtkm::Id total = 0;
|
|
total = vtkm::cont::Algorithm::Reduce(segmentsPerCell, vtkm::Id(0));
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|
|
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vtkm::cont::ArrayHandle<vtkm::Id> cellOffsets;
|
|
vtkm::cont::Algorithm::ScanExclusive(segmentsPerCell, cellOffsets);
|
|
outputIndices.Allocate(total);
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|
|
|
vtkm::worklet::DispatcherMapTopology<Cylinderize> cylInvoker;
|
|
cylInvoker.Invoke(cellset, cellOffsets, outputIndices);
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|
|
|
output = total;
|
|
}
|
|
}
|
|
};
|
|
}
|
|
}
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#endif
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