mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-19 18:45:43 +00:00
313 lines
9.3 KiB
C++
313 lines
9.3 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_worklet_internal_TriangulateTables_h
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#define vtk_m_worklet_internal_TriangulateTables_h
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#include <vtkm/CellShape.h>
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#include <vtkm/Types.h>
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#include <vtkm/exec/ExecutionObjectBase.h>
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#include <vtkm/cont/ArrayHandle.h>
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#include <vtkm/cont/StorageBasic.h>
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namespace vtkm {
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namespace worklet {
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namespace internal {
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typedef vtkm::cont::ArrayHandle<vtkm::IdComponent, vtkm::cont::StorageTagBasic>
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TriangulateArrayHandle;
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static vtkm::IdComponent TriangleCountData[vtkm::NUMBER_OF_CELL_SHAPES] = {
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0, // 0 = vtkm::CELL_SHAPE_EMPTY_CELL
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0, // 1 = vtkm::CELL_SHAPE_VERTEX
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0, // 2 = vtkm::CELL_SHAPE_POLY_VERTEX
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0, // 3 = vtkm::CELL_SHAPE_LINE
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0, // 4 = vtkm::CELL_SHAPE_POLY_LINE
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1, // 5 = vtkm::CELL_SHAPE_TRIANGLE
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0, // 6 = vtkm::CELL_SHAPE_TRIANGLE_STRIP
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-1, // 7 = vtkm::CELL_SHAPE_POLYGON
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0, // 8 = vtkm::CELL_SHAPE_PIXEL
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2, // 9 = vtkm::CELL_SHAPE_QUAD
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0, // 10 = vtkm::CELL_SHAPE_TETRA
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0, // 11 = vtkm::CELL_SHAPE_VOXEL
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0, // 12 = vtkm::CELL_SHAPE_HEXAHEDRON
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0, // 13 = vtkm::CELL_SHAPE_WEDGE
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0 // 14 = vtkm::CELL_SHAPE_PYRAMID
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};
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static vtkm::IdComponent TriangleOffsetData[vtkm::NUMBER_OF_CELL_SHAPES] = {
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-1, // 0 = vtkm::CELL_SHAPE_EMPTY_CELL
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-1, // 1 = vtkm::CELL_SHAPE_VERTEX
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-1, // 2 = vtkm::CELL_SHAPE_POLY_VERTEX
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-1, // 3 = vtkm::CELL_SHAPE_LINE
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-1, // 4 = vtkm::CELL_SHAPE_POLY_LINE
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0, // 5 = vtkm::CELL_SHAPE_TRIANGLE
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-1, // 6 = vtkm::CELL_SHAPE_TRIANGLE_STRIP
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-1, // 7 = vtkm::CELL_SHAPE_POLYGON
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-1, // 8 = vtkm::CELL_SHAPE_PIXEL
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1, // 9 = vtkm::CELL_SHAPE_QUAD
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-1, // 10 = vtkm::CELL_SHAPE_TETRA
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-1, // 11 = vtkm::CELL_SHAPE_VOXEL
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-1, // 12 = vtkm::CELL_SHAPE_HEXAHEDRON
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-1, // 13 = vtkm::CELL_SHAPE_WEDGE
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-1 // 14 = vtkm::CELL_SHAPE_PYRAMID
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};
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static vtkm::IdComponent TriangleIndexData[] = {
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// vtkm::CELL_SHAPE_TRIANGLE
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0, 1, 2,
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// vtkm::CELL_SHAPE_QUAD
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0, 1, 2,
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0, 2, 3
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};
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template<typename Device>
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class TriangulateTablesExecutionObject : public vtkm::exec::ExecutionObjectBase
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{
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public:
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typedef typename TriangulateArrayHandle::ExecutionTypes<Device>::PortalConst
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PortalType;
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VTKM_EXEC_CONT_EXPORT
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TriangulateTablesExecutionObject()
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{ }
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VTKM_CONT_EXPORT
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TriangulateTablesExecutionObject(const TriangulateArrayHandle &counts,
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const TriangulateArrayHandle &offsets,
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const TriangulateArrayHandle &indices)
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: Counts(counts.PrepareForInput(Device())),
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Offsets(offsets.PrepareForInput(Device())),
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Indices(indices.PrepareForInput(Device()))
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{ }
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template<typename CellShape>
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VTKM_EXEC_EXPORT
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vtkm::IdComponent GetCount(CellShape shape, vtkm::IdComponent numPoints) const
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{
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if (shape.Id == vtkm::CELL_SHAPE_POLYGON)
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{
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return numPoints-2;
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}
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else
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{
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return this->Counts.Get(shape.Id);
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}
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}
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template<typename CellShape>
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VTKM_EXEC_EXPORT
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vtkm::Vec<vtkm::IdComponent, 3>
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GetIndices(CellShape shape, vtkm::IdComponent triangleIndex) const
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{
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vtkm::Vec<vtkm::IdComponent, 3> triIndices;
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if (shape.Id == vtkm::CELL_SHAPE_POLYGON)
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{
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triIndices[0] = 0;
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triIndices[1] = triangleIndex + 1;
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triIndices[2] = triangleIndex + 2;
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}
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else
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{
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vtkm::IdComponent offset =
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3*(this->Offsets.Get(shape.Id) + triangleIndex);
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triIndices[0] = this->Indices.Get(offset + 0);
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triIndices[1] = this->Indices.Get(offset + 1);
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triIndices[2] = this->Indices.Get(offset + 2);
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}
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return triIndices;
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}
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private:
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PortalType Counts;
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PortalType Offsets;
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PortalType Indices;
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};
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class TriangulateTables
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{
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public:
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VTKM_CONT_EXPORT
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TriangulateTables()
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: Counts(vtkm::cont::make_ArrayHandle(
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vtkm::worklet::internal::TriangleCountData,
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vtkm::NUMBER_OF_CELL_SHAPES)),
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Offsets(vtkm::cont::make_ArrayHandle(
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vtkm::worklet::internal::TriangleOffsetData,
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vtkm::NUMBER_OF_CELL_SHAPES)),
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Indices(vtkm::cont::make_ArrayHandle(
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vtkm::worklet::internal::TriangleIndexData,
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sizeof(vtkm::worklet::internal::TriangleIndexData)/sizeof(vtkm::IdComponent)))
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{ }
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template<typename Device>
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vtkm::worklet::internal::TriangulateTablesExecutionObject<Device>
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PrepareForInput(Device) const
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{
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return vtkm::worklet::internal::TriangulateTablesExecutionObject<Device>(
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this->Counts, this->Offsets, this->Indices);
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}
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private:
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TriangulateArrayHandle Counts;
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TriangulateArrayHandle Offsets;
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TriangulateArrayHandle Indices;
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};
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static vtkm::IdComponent TetrahedronCountData[vtkm::NUMBER_OF_CELL_SHAPES] = {
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0, // 0 = vtkm::CELL_SHAPE_EMPTY_CELL
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0, // 1 = vtkm::CELL_SHAPE_VERTEX
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0, // 2 = vtkm::CELL_SHAPE_POLY_VERTEX
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0, // 3 = vtkm::CELL_SHAPE_LINE
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0, // 4 = vtkm::CELL_SHAPE_POLY_LINE
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0, // 5 = vtkm::CELL_SHAPE_TRIANGLE
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0, // 6 = vtkm::CELL_SHAPE_TRIANGLE_STRIP
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0, // 7 = vtkm::CELL_SHAPE_POLYGON
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0, // 8 = vtkm::CELL_SHAPE_PIXEL
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0, // 9 = vtkm::CELL_SHAPE_QUAD
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1, // 10 = vtkm::CELL_SHAPE_TETRA
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0, // 11 = vtkm::CELL_SHAPE_VOXEL
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5, // 12 = vtkm::CELL_SHAPE_HEXAHEDRON
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3, // 13 = vtkm::CELL_SHAPE_WEDGE
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2 // 14 = vtkm::CELL_SHAPE_PYRAMID
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};
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static vtkm::IdComponent TetrahedronOffsetData[vtkm::NUMBER_OF_CELL_SHAPES] = {
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-1, // 0 = vtkm::CELL_SHAPE_EMPTY_CELL
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-1, // 1 = vtkm::CELL_SHAPE_VERTEX
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-1, // 2 = vtkm::CELL_SHAPE_POLY_VERTEX
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-1, // 3 = vtkm::CELL_SHAPE_LINE
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-1, // 4 = vtkm::CELL_SHAPE_POLY_LINE
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-1, // 5 = vtkm::CELL_SHAPE_TRIANGLE
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-1, // 6 = vtkm::CELL_SHAPE_TRIANGLE_STRIP
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-1, // 7 = vtkm::CELL_SHAPE_POLYGON
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-1, // 8 = vtkm::CELL_SHAPE_PIXEL
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-1, // 9 = vtkm::CELL_SHAPE_QUAD
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0, // 10 = vtkm::CELL_SHAPE_TETRA
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-1, // 11 = vtkm::CELL_SHAPE_VOXEL
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1, // 12 = vtkm::CELL_SHAPE_HEXAHEDRON
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6, // 13 = vtkm::CELL_SHAPE_WEDGE
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9 // 14 = vtkm::CELL_SHAPE_PYRAMID
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};
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static vtkm::IdComponent TetrahedronIndexData[] = {
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// vtkm::CELL_SHAPE_TETRA
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0, 1, 2, 3,
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// vtkm::CELL_SHAPE_HEXAHEDRON
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0, 1, 3, 4,
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1, 4, 5, 6,
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1, 4, 6, 3,
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1, 3, 6, 2,
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3, 6, 7, 4,
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// vtkm::CELL_SHAPE_WEDGE
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0, 1, 2, 4,
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3, 4, 5, 2,
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0, 2, 3, 4,
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// vtkm::CELL_SHAPE_PYRAMID
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0, 1, 2, 4,
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0, 2, 3, 4
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};
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template<typename Device>
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class TetrahedralizeTablesExecutionObject
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: public vtkm::exec::ExecutionObjectBase
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{
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public:
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typedef typename TriangulateArrayHandle::ExecutionTypes<Device>::PortalConst
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PortalType;
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VTKM_EXEC_CONT_EXPORT
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TetrahedralizeTablesExecutionObject()
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{ }
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VTKM_CONT_EXPORT
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TetrahedralizeTablesExecutionObject(const TriangulateArrayHandle &counts,
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const TriangulateArrayHandle &offsets,
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const TriangulateArrayHandle &indices)
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: Counts(counts.PrepareForInput(Device())),
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Offsets(offsets.PrepareForInput(Device())),
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Indices(indices.PrepareForInput(Device()))
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{ }
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template<typename CellShape>
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VTKM_EXEC_EXPORT
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vtkm::IdComponent GetCount(CellShape shape) const
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{
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return this->Counts.Get(shape.Id);
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}
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template<typename CellShape>
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VTKM_EXEC_EXPORT
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vtkm::Vec<vtkm::IdComponent, 4>
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GetIndices(CellShape shape, vtkm::IdComponent tetrahedronIndex) const
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{
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vtkm::Vec<vtkm::IdComponent, 4> tetIndices;
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vtkm::IdComponent offset =
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4*(this->Offsets.Get(shape.Id) + tetrahedronIndex);
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tetIndices[0] = this->Indices.Get(offset + 0);
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tetIndices[1] = this->Indices.Get(offset + 1);
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tetIndices[2] = this->Indices.Get(offset + 2);
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tetIndices[3] = this->Indices.Get(offset + 3);
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return tetIndices;
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}
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private:
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PortalType Counts;
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PortalType Offsets;
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PortalType Indices;
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};
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class TetrahedralizeTables
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{
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public:
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VTKM_CONT_EXPORT
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TetrahedralizeTables()
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: Counts(vtkm::cont::make_ArrayHandle(
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vtkm::worklet::internal::TetrahedronCountData,
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vtkm::NUMBER_OF_CELL_SHAPES)),
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Offsets(vtkm::cont::make_ArrayHandle(
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vtkm::worklet::internal::TetrahedronOffsetData,
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vtkm::NUMBER_OF_CELL_SHAPES)),
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Indices(vtkm::cont::make_ArrayHandle(
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vtkm::worklet::internal::TetrahedronIndexData,
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vtkm::Id(44) ))
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{ }
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template<typename Device>
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vtkm::worklet::internal::TetrahedralizeTablesExecutionObject<Device>
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PrepareForInput(Device) const
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{
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return vtkm::worklet::internal::TetrahedralizeTablesExecutionObject<Device>(
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this->Counts, this->Offsets, this->Indices);
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}
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private:
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TriangulateArrayHandle Counts;
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TriangulateArrayHandle Offsets;
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TriangulateArrayHandle Indices;
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};
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}
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}
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}
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#endif //vtk_m_worklet_internal_TriangulateTables_h
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