ed43dad6ca
Previously, DynamicArrayHandle and DynamicCellSet had slightly different interfaces to their CastTo feature. It was a bit confusing and not all that easy to use. This change simplifies and unifies them by making each class have a single CopyTo method that takes a reference to a cast object (an ArrayHandle or CellSet, respectively) and fills that object with the data contained if the cast is successfull. This interface gets around having to declare strange types. Each object also has a Cast method that has to have a template parameter specified and returns a reference of that type (if possible). In addition, the old behavior is preserved for DynamicArrayHandle (but not DynamicCellSet). To avoid confusion, the name of that cast method is CastToTypeStorage. However, the method was chaned to not take parameters to make it consistent with the other Cast method. Also, the IsType methods have been modified to reflect changes in cast/copy. IsType now no longer takes arguments. However, an alternate IsSameType does the same thing but does take an argument.
132 lines
4.9 KiB
C++
132 lines
4.9 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 2014 Sandia Corporation.
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// Copyright 2014 UT-Battelle, LLC.
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// Copyright 2014 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 <iostream>
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#include <algorithm>
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#include <vtkm/cont/DeviceAdapter.h>
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#include <vtkm/cont/DataSetBuilderExplicit.h>
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#include <vtkm/cont/testing/Testing.h>
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#include <vtkm/worklet/ExternalFaces.h>
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namespace {
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vtkm::cont::DataSet RunExternalFaces(vtkm::cont::DataSet &ds)
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{
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vtkm::cont::CellSetExplicit<> cellset;
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ds.GetCellSet(0).CopyTo(cellset);
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vtkm::cont::ArrayHandle<vtkm::UInt8> shapes = cellset.GetShapesArray(
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vtkm::TopologyElementTagPoint(),vtkm::TopologyElementTagCell());
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vtkm::cont::ArrayHandle<vtkm::IdComponent> numIndices = cellset.GetNumIndicesArray(
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vtkm::TopologyElementTagPoint(),vtkm::TopologyElementTagCell());
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vtkm::cont::ArrayHandle<vtkm::Id> conn = cellset.GetConnectivityArray(
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vtkm::TopologyElementTagPoint(),vtkm::TopologyElementTagCell());
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vtkm::cont::ArrayHandle<vtkm::UInt8> output_shapes;
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vtkm::cont::ArrayHandle<vtkm::IdComponent> output_numIndices;
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vtkm::cont::ArrayHandle<vtkm::Id> output_conn;
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//Run the External Faces worklet
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vtkm::worklet::ExternalFaces().run(
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shapes,
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numIndices,
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conn,
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output_shapes,
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output_numIndices,
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output_conn,
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VTKM_DEFAULT_DEVICE_ADAPTER_TAG());
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vtkm::cont::DataSet new_ds;
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for(vtkm::IdComponent i=0; i < ds.GetNumberOfCoordinateSystems(); ++i)
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{
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new_ds.AddCoordinateSystem(ds.GetCoordinateSystem(i));
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}
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vtkm::cont::CellSetExplicit<> new_cs(cellset.GetNumberOfPoints(),"cells", 2);
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new_cs.Fill(output_shapes, output_numIndices, output_conn);
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new_ds.AddCellSet(new_cs);
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return new_ds;
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}
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void TestExternalFaces()
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{
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//--------------Construct a VTK-m Test Dataset----------------
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const int nVerts = 8; //A cube that is tetrahedralized
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typedef vtkm::Vec<vtkm::Float32,3> CoordType;
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vtkm::cont::ArrayHandle< CoordType > coordinates;
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coordinates.Allocate(nVerts);
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coordinates.GetPortalControl().Set(0, CoordType(0.0f, 0.0f, 0.0f) );
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coordinates.GetPortalControl().Set(1, CoordType(1.0f, 0.0f, 0.0f) );
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coordinates.GetPortalControl().Set(2, CoordType(1.0f, 1.0f, 0.0f) );
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coordinates.GetPortalControl().Set(3, CoordType(0.0f, 1.0f, 0.0f) );
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coordinates.GetPortalControl().Set(4, CoordType(0.0f, 0.0f, 1.0f) );
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coordinates.GetPortalControl().Set(5, CoordType(1.0f, 0.0f, 1.0f) );
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coordinates.GetPortalControl().Set(6, CoordType(1.0f, 1.0f, 1.0f) );
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coordinates.GetPortalControl().Set(7, CoordType(0.0f, 1.0f, 1.0f) );
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//Construct the VTK-m shapes and numIndices connectivity arrays
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const int nCells = 6; //The tetrahedrons of the cube
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vtkm::IdComponent cellVerts[nCells][4] = {
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{4,7,6,3}, {4,6,3,2}, {4,0,3,2},
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{4,6,5,2}, {4,5,0,2}, {1,0,5,2}
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};
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vtkm::cont::ArrayHandle<vtkm::UInt8> shapes;
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vtkm::cont::ArrayHandle<vtkm::IdComponent> numIndices;
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vtkm::cont::ArrayHandle<vtkm::Id> conn;
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shapes.Allocate(static_cast<vtkm::Id>(nCells));
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numIndices.Allocate(static_cast<vtkm::Id>(nCells));
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conn.Allocate(static_cast<vtkm::Id>(4 * nCells));
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int index = 0;
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for(int j = 0; j < nCells; j++)
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{
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shapes.GetPortalControl().Set(j, static_cast<vtkm::UInt8>(vtkm::CELL_SHAPE_TETRA));
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numIndices.GetPortalControl().Set(j, 4);
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for(int k = 0; k < 4; k++)
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conn.GetPortalControl().Set(index++, cellVerts[j][k]);
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}
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vtkm::cont::DataSetBuilderExplicit builder;
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vtkm::cont::DataSet ds = builder.Create(coordinates, shapes, numIndices, conn);
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//Run the External Faces worklet
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vtkm::cont::DataSet new_ds = RunExternalFaces(ds);
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vtkm::cont::CellSetExplicit<> new_cs;
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new_ds.GetCellSet(0).CopyTo(new_cs);
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vtkm::Id numExtFaces_out = new_cs.GetNumberOfCells();
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//Validate the number of external faces (output) returned by the worklet
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const vtkm::Id numExtFaces_actual = 12;
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VTKM_TEST_ASSERT(numExtFaces_out == numExtFaces_actual, "Number of External Faces mismatch");
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} // TestExternalFaces
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}
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int UnitTestExternalFaces(int, char *[])
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{
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return vtkm::cont::testing::Testing::Run(TestExternalFaces);
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}
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