mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-16 17:22:55 +00:00
91f9883599
These provide the general ability to get the edges for each cell type.
233 lines
8.2 KiB
C++
233 lines
8.2 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 2016 Sandia Corporation.
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// Copyright 2016 UT-Battelle, LLC.
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// Copyright 2016 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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#include <vtkm/exec/CellEdge.h>
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#include <vtkm/exec/CellFace.h>
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#include <vtkm/CellShape.h>
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#include <vtkm/CellTraits.h>
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#include <vtkm/exec/FunctorBase.h>
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#include <vtkm/testing/Testing.h>
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#include <set>
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namespace {
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using EdgeType = vtkm::Vec<vtkm::IdComponent,2>;
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void MakeEdgeCononical(EdgeType &edge)
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{
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if (edge[1] < edge[0])
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{
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std::swap(edge[0], edge[1]);
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}
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}
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struct TestCellFacesFunctor
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{
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template<typename CellShapeTag>
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void DoTest(vtkm::IdComponent numPoints,
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CellShapeTag shape,
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vtkm::CellTopologicalDimensionsTag<3>) const
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{
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// Stuff to fake running in the execution environment.
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char messageBuffer[256];
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messageBuffer[0] = '\0';
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vtkm::exec::internal::ErrorMessageBuffer errorMessage(messageBuffer, 256);
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vtkm::exec::FunctorBase workletProxy;
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workletProxy.SetErrorMessageBuffer(errorMessage);
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vtkm::IdComponent numEdges =
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vtkm::exec::CellEdgeNumberOfEdges(numPoints, shape, workletProxy);
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VTKM_TEST_ASSERT(numEdges > 0, "No edges?");
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std::set<EdgeType> edgeSet;
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for (vtkm::IdComponent edgeIndex = 0; edgeIndex < numEdges; edgeIndex++)
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{
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EdgeType edge = vtkm::exec::CellEdgeLocalIndices(
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numPoints, edgeIndex, shape, workletProxy);
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VTKM_TEST_ASSERT(edge[0] >= 0, "Bad index in edge.");
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VTKM_TEST_ASSERT(edge[0] < numPoints, "Bad index in edge.");
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VTKM_TEST_ASSERT(edge[1] >= 0, "Bad index in edge.");
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VTKM_TEST_ASSERT(edge[1] < numPoints, "Bad index in edge.");
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VTKM_TEST_ASSERT(edge[0] != edge[1], "Degenerate edge.");
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MakeEdgeCononical(edge);
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VTKM_TEST_ASSERT(edge[0] < edge[1],
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"Internal test error: MakeEdgeCononical failed");
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VTKM_TEST_ASSERT(edgeSet.find(edge) == edgeSet.end(),
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"Found duplicate edge");
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edgeSet.insert(edge);
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}
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vtkm::IdComponent numFaces =
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vtkm::exec::CellFaceNumberOfFaces(shape, workletProxy);
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VTKM_TEST_ASSERT(numFaces > 0, "No faces?");
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std::set<EdgeType> edgesFoundInFaces;
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for (vtkm::IdComponent faceIndex = 0; faceIndex < numFaces; faceIndex++)
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{
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vtkm::VecCConst<vtkm::IdComponent> facePoints =
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vtkm::exec::CellFaceLocalIndices(faceIndex, shape, workletProxy);
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vtkm::IdComponent numPointsInFace = facePoints.GetNumberOfComponents();
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VTKM_TEST_ASSERT(numPointsInFace >= 3,
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"Face has fewer points than a triangle.");
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for (vtkm::IdComponent pointIndex = 0;
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pointIndex < numPointsInFace;
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pointIndex++)
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{
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VTKM_TEST_ASSERT(facePoints[pointIndex] >= 0,
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"Invalid point index for face.");
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VTKM_TEST_ASSERT(facePoints[pointIndex] <= numPoints,
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"Invalid point index for face.");
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EdgeType edge;
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if (pointIndex < numPointsInFace-1)
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{
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edge = EdgeType(facePoints[pointIndex], facePoints[pointIndex+1]);
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}
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else
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{
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edge = EdgeType(facePoints[0], facePoints[pointIndex]);
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}
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MakeEdgeCononical(edge);
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VTKM_TEST_ASSERT(edgeSet.find(edge) != edgeSet.end(),
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"Edge in face not in cell's edges");
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edgesFoundInFaces.insert(edge);
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}
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}
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VTKM_TEST_ASSERT(edgesFoundInFaces.size() == edgeSet.size(),
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"Faces did not contain all edges in cell");
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}
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// Case of cells that have 2 dimensions (no faces)
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template<typename CellShapeTag>
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void DoTest(vtkm::IdComponent numPoints,
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CellShapeTag shape,
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vtkm::CellTopologicalDimensionsTag<2>) const
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{
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// Stuff to fake running in the execution environment.
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char messageBuffer[256];
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messageBuffer[0] = '\0';
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vtkm::exec::internal::ErrorMessageBuffer errorMessage(messageBuffer, 256);
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vtkm::exec::FunctorBase workletProxy;
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workletProxy.SetErrorMessageBuffer(errorMessage);
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vtkm::IdComponent numEdges =
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vtkm::exec::CellEdgeNumberOfEdges(numPoints, shape, workletProxy);
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VTKM_TEST_ASSERT(numEdges == numPoints,
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"Polygons should have same number of points and edges");
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std::set<EdgeType> edgeSet;
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for (vtkm::IdComponent edgeIndex = 0; edgeIndex < numEdges; edgeIndex++)
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{
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EdgeType edge = vtkm::exec::CellEdgeLocalIndices(
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numPoints, edgeIndex, shape, workletProxy);
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VTKM_TEST_ASSERT(edge[0] >= 0, "Bad index in edge.");
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VTKM_TEST_ASSERT(edge[0] < numPoints, "Bad index in edge.");
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VTKM_TEST_ASSERT(edge[1] >= 0, "Bad index in edge.");
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VTKM_TEST_ASSERT(edge[1] < numPoints, "Bad index in edge.");
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VTKM_TEST_ASSERT(edge[0] != edge[1], "Degenerate edge.");
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MakeEdgeCononical(edge);
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VTKM_TEST_ASSERT(edge[0] < edge[1],
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"Internal test error: MakeEdgeCononical failed");
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VTKM_TEST_ASSERT(edgeSet.find(edge) == edgeSet.end(),
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"Found duplicate edge");
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edgeSet.insert(edge);
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}
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vtkm::IdComponent numFaces =
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vtkm::exec::CellFaceNumberOfFaces(shape, workletProxy);
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VTKM_TEST_ASSERT(numFaces == 0, "Non 3D shape should have no faces");
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}
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// Less important case of cells that have less than 2 dimensions
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// (no faces or edges)
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template<typename CellShapeTag, vtkm::IdComponent NumDimensions>
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void DoTest(vtkm::IdComponent numPoints,
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CellShapeTag shape,
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vtkm::CellTopologicalDimensionsTag<NumDimensions>) const
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{
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// Stuff to fake running in the execution environment.
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char messageBuffer[256];
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messageBuffer[0] = '\0';
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vtkm::exec::internal::ErrorMessageBuffer errorMessage(messageBuffer, 256);
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vtkm::exec::FunctorBase workletProxy;
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workletProxy.SetErrorMessageBuffer(errorMessage);
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vtkm::IdComponent numEdges =
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vtkm::exec::CellEdgeNumberOfEdges(numPoints, shape, workletProxy);
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VTKM_TEST_ASSERT(numEdges == 0, "0D or 1D shape should have no edges");
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vtkm::IdComponent numFaces =
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vtkm::exec::CellFaceNumberOfFaces(shape, workletProxy);
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VTKM_TEST_ASSERT(numFaces == 0, "Non 3D shape should have no faces");
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}
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template<typename CellShapeTag>
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void TryShapeWithNumPoints(vtkm::IdComponent numPoints,
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CellShapeTag) const
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{
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std::cout << "--- Test shape tag directly"
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<< " (" << numPoints << " points)"
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<< std::endl;
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this->DoTest(
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numPoints,
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CellShapeTag(),
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typename vtkm::CellTraits<CellShapeTag>::TopologicalDimensionsTag());
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std::cout << "--- Test generic shape tag"
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<< " (" << numPoints << " points)"
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<< std::endl;
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this->DoTest(
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numPoints,
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vtkm::CellShapeTagGeneric(CellShapeTag::Id),
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typename vtkm::CellTraits<CellShapeTag>::TopologicalDimensionsTag());
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}
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template<typename CellShapeTag>
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void operator()(CellShapeTag) const
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{
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this->TryShapeWithNumPoints(vtkm::CellTraits<CellShapeTag>::NUM_POINTS,
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CellShapeTag());
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}
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void operator()(vtkm::CellShapeTagPolygon) const
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{
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for (vtkm::IdComponent numPoints = 3; numPoints < 7; numPoints++)
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{
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this->TryShapeWithNumPoints(numPoints,vtkm::CellShapeTagPolygon());
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}
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}
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};
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void TestAllShapes()
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{
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vtkm::testing::Testing::TryAllCellShapes(TestCellFacesFunctor());
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}
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} // anonymous namespace
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int UnitTestCellEdgeFace(int, char *[])
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{
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return vtkm::testing::Testing::Run(TestAllShapes);
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}
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