mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-16 17:22:55 +00:00
42bc9a393c
With recent changes to allow a configuration to change the default types, storage, and cell sets, it is possible to feed filters and other components types they were not previously expecting. Fix feature gaps where these components were not accepting the types they should.
312 lines
9.4 KiB
C++
312 lines
9.4 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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#include <vtkm/rendering/raytracing/CylinderExtractor.h>
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#include <vtkm/cont/Algorithm.h>
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#include <vtkm/rendering/Cylinderizer.h>
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#include <vtkm/rendering/raytracing/Worklets.h>
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#include <vtkm/worklet/DispatcherMapField.h>
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#include <vtkm/worklet/DispatcherMapTopology.h>
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namespace vtkm
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{
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namespace rendering
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{
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namespace raytracing
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{
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namespace detail
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{
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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
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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& points) const
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{
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points = 0;
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}
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VTKM_EXEC
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void operator()(vtkm::CellShapeTagQuad vtkmNotUsed(shapeType), vtkm::Id& points) const
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{
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points = 0;
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}
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VTKM_EXEC
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void operator()(vtkm::CellShapeTagWedge vtkmNotUsed(shapeType), vtkm::Id& points) const
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{
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points = 0;
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}
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}; // ClassCountSegments
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class Pointify : public vtkm::worklet::WorkletVisitCellsWithPoints
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{
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public:
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VTKM_CONT
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Pointify() {}
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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 operator()(const vtkm::Id& vtkmNotUsed(pointOffset),
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vtkm::CellShapeTagQuad vtkmNotUsed(shapeType),
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const VecType& vtkmNotUsed(cellIndices),
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const vtkm::Id& vtkmNotUsed(cellId),
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OutputPortal& vtkmNotUsed(outputIndices)) const
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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& vtkmNotUsed(pointOffset),
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vtkm::CellShapeTagWedge vtkmNotUsed(shapeType),
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const VecType& vtkmNotUsed(cellIndices),
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const vtkm::Id& vtkmNotUsed(cellId),
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OutputPortal& vtkmNotUsed(outputIndices)) const
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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& vtkmNotUsed(pointOffset),
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vtkm::CellShapeTagHexahedron vtkmNotUsed(shapeType),
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const VecType& vtkmNotUsed(cellIndices),
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const vtkm::Id& vtkmNotUsed(cellId),
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OutputPortal& vtkmNotUsed(outputIndices)) const
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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::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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else 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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else 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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}
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}; //class pointify
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class Iterator : public vtkm::worklet::WorkletMapField
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{
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public:
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VTKM_CONT
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Iterator() {}
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typedef void ControlSignature(FieldOut);
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typedef void ExecutionSignature(_1, WorkIndex);
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VTKM_EXEC
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void operator()(vtkm::Id2& index, const vtkm::Id2& idx) const { index = idx; }
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}; //class Iterator
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class FieldRadius : public vtkm::worklet::WorkletMapField
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{
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protected:
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vtkm::Float32 MinRadius;
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vtkm::Float32 RadiusDelta;
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vtkm::Float32 MinValue;
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vtkm::Float32 InverseDelta;
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public:
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VTKM_CONT
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FieldRadius(const vtkm::Float32 minRadius,
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const vtkm::Float32 maxRadius,
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const vtkm::Range scalarRange)
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: MinRadius(minRadius)
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, RadiusDelta(maxRadius - minRadius)
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, MinValue(static_cast<vtkm::Float32>(scalarRange.Min))
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{
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vtkm::Float32 delta = static_cast<vtkm::Float32>(scalarRange.Max - scalarRange.Min);
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if (delta != 0.f)
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InverseDelta = 1.f / (delta);
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else
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InverseDelta = 0.f; // just map scalar to 0;
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}
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typedef void ControlSignature(FieldIn, FieldOut, WholeArrayIn);
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typedef void ExecutionSignature(_1, _2, _3);
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template <typename ScalarPortalType>
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VTKM_EXEC void operator()(const vtkm::Id3& cylId,
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vtkm::Float32& radius,
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const ScalarPortalType& scalars) const
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{
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vtkm::Float32 scalar = static_cast<vtkm::Float32>(scalars.Get(cylId[0]));
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vtkm::Float32 t = (scalar - MinValue) * InverseDelta;
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radius = MinRadius + t * RadiusDelta;
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}
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}; //class FieldRadius
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} //namespace detail
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void CylinderExtractor::ExtractCells(const vtkm::cont::DynamicCellSet& cells,
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const vtkm::Float32 radius)
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{
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vtkm::Id numOfSegments;
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vtkm::rendering::Cylinderizer geometrizer;
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geometrizer.Run(cells, this->CylIds, numOfSegments);
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this->SetUniformRadius(radius);
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}
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void CylinderExtractor::ExtractCells(const vtkm::cont::DynamicCellSet& cells,
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const vtkm::cont::Field& field,
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const vtkm::Float32 minRadius,
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const vtkm::Float32 maxRadius)
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{
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vtkm::Id numOfSegments;
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vtkm::rendering::Cylinderizer geometrizer;
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geometrizer.Run(cells, this->CylIds, numOfSegments);
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this->SetVaryingRadius(minRadius, maxRadius, field);
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}
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void CylinderExtractor::SetUniformRadius(const vtkm::Float32 radius)
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{
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const vtkm::Id size = this->CylIds.GetNumberOfValues();
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Radii.Allocate(size);
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vtkm::cont::ArrayHandleConstant<vtkm::Float32> radiusHandle(radius, size);
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vtkm::cont::Algorithm::Copy(radiusHandle, Radii);
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}
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void CylinderExtractor::SetCylinderIdsFromCells(const vtkm::cont::DynamicCellSet& cells)
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{
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vtkm::Id numCells = cells.GetNumberOfCells();
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if (numCells == 0)
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{
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return;
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}
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//
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// look for points in the cell set
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//
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if (cells.IsSameType(vtkm::cont::CellSetExplicit<>()))
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{
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auto cellsExplicit = cells.Cast<vtkm::cont::CellSetExplicit<>>();
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vtkm::cont::ArrayHandle<vtkm::Id> points;
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vtkm::worklet::DispatcherMapTopology<detail::CountSegments>(detail::CountSegments())
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.Invoke(cellsExplicit, points);
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vtkm::Id totalPoints = 0;
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totalPoints = vtkm::cont::Algorithm::Reduce(points, vtkm::Id(0));
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vtkm::cont::ArrayHandle<vtkm::Id> cellOffsets;
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vtkm::cont::Algorithm::ScanExclusive(points, cellOffsets);
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CylIds.Allocate(totalPoints);
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vtkm::worklet::DispatcherMapTopology<detail::Pointify>(detail::Pointify())
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.Invoke(cellsExplicit, cellOffsets, this->CylIds);
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}
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}
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void CylinderExtractor::SetVaryingRadius(const vtkm::Float32 minRadius,
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const vtkm::Float32 maxRadius,
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const vtkm::cont::Field& field)
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{
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vtkm::cont::ArrayHandle<vtkm::Range> rangeArray = field.GetRange();
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if (rangeArray.GetNumberOfValues() != 1)
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{
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throw vtkm::cont::ErrorBadValue("Cylinder Extractor: scalar field must have one component");
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}
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vtkm::Range range = rangeArray.ReadPortal().Get(0);
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Radii.Allocate(this->CylIds.GetNumberOfValues());
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vtkm::worklet::DispatcherMapField<detail::FieldRadius>(
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detail::FieldRadius(minRadius, maxRadius, range))
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.Invoke(this->CylIds, this->Radii, field.GetData().ResetTypes(vtkm::TypeListFieldScalar()));
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}
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vtkm::cont::ArrayHandle<vtkm::Id3> CylinderExtractor::GetCylIds()
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{
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return this->CylIds;
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}
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vtkm::cont::ArrayHandle<vtkm::Float32> CylinderExtractor::GetRadii()
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{
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return this->Radii;
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}
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vtkm::Id CylinderExtractor::GetNumberOfCylinders() const
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{
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return this->CylIds.GetNumberOfValues();
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}
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}
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}
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} //namespace vtkm::rendering::raytracing
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