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https://gitlab.kitware.com/vtk/vtk-m
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7212469d04
Previously there was a Connectivity* structure for both the control environment and the execution environment. This was necessary before because the connectivity is explicit to the from and to topology elements, so you would get this structure from the appropriate call to CellSet*. However, the symantics are changed so that the type of connectivity is selected in the worklet's dispatcher. Thus, it is now much cleaner to manage the CellSet structure in the CellSet class itself and just have a single set of Connectivity* classes in the execution environment.
126 lines
4.3 KiB
C++
126 lines
4.3 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 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 <vtkm/worklet/PointElevation.h>
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#include <vtkm/worklet/DispatcherMapField.h>
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#include <vtkm/cont/CellSetExplicit.h>
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#include <vtkm/cont/DataSet.h>
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#include <vtkm/cont/testing/Testing.h>
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#include <vector>
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namespace {
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vtkm::cont::DataSet MakePointElevationTestDataSet()
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{
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vtkm::cont::DataSet dataSet;
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std::vector<vtkm::Float32> xVals, yVals, zVals;
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const vtkm::Id dim = 5;
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for (vtkm::Id j = 0; j < dim; ++j)
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{
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vtkm::Float32 z = static_cast<vtkm::Float32>(j) /
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static_cast<vtkm::Float32>(dim - 1);
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for (vtkm::Id i = 0; i < dim; ++i)
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{
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vtkm::Float32 x = static_cast<vtkm::Float32>(i) /
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static_cast<vtkm::Float32>(dim - 1);
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vtkm::Float32 y = (x*x + z*z)/2.0f;
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xVals.push_back(x);
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yVals.push_back(y);
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zVals.push_back(z);
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}
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}
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vtkm::Id numVerts = dim * dim;
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vtkm::Id numCells = (dim - 1) * (dim - 1);
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dataSet.AddField(vtkm::cont::Field("x", 1, vtkm::cont::Field::ASSOC_POINTS,
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&xVals[0], numVerts));
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dataSet.AddField(vtkm::cont::Field("y", 1, vtkm::cont::Field::ASSOC_POINTS,
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&yVals[0], numVerts));
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dataSet.AddField(vtkm::cont::Field("z", 1, vtkm::cont::Field::ASSOC_POINTS,
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&zVals[0], numVerts));
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dataSet.AddCoordinateSystem(vtkm::cont::CoordinateSystem("x","y","z"));
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vtkm::cont::CellSetExplicit<> cellSet("cells", 3);
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cellSet.PrepareToAddCells(numCells, numCells * 4);
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for (vtkm::Id j = 0; j < dim - 1; ++j)
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{
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for (vtkm::Id i = 0; i < dim - 1; ++i)
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{
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cellSet.AddCell(vtkm::VTKM_QUAD,
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4,
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vtkm::make_Vec<vtkm::Id>(j * dim + i,
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j * dim + i + 1,
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(j + 1) * dim + i + 1,
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(j + 1) * dim + i));
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}
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}
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cellSet.CompleteAddingCells();
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dataSet.AddCellSet(cellSet);
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return dataSet;
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}
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}
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void TestPointElevation()
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{
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std::cout << "Testing PointElevation Worklet" << std::endl;
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vtkm::cont::DataSet dataSet = MakePointElevationTestDataSet();
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dataSet.AddField(vtkm::cont::Field("elevation", 1, vtkm::cont::Field::ASSOC_POINTS,
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vtkm::Float32()));
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vtkm::worklet::PointElevation pointElevationWorklet;
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pointElevationWorklet.SetLowPoint(vtkm::make_Vec<vtkm::Float64>(0.0, 0.0, 0.0));
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pointElevationWorklet.SetHighPoint(vtkm::make_Vec<vtkm::Float64>(0.0, 1.0, 0.0));
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pointElevationWorklet.SetRange(0.0, 2.0);
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vtkm::worklet::DispatcherMapField<vtkm::worklet::PointElevation>
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dispatcher(pointElevationWorklet);
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dispatcher.Invoke(dataSet.GetField("x").GetData(),
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dataSet.GetField("y").GetData(),
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dataSet.GetField("z").GetData(),
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dataSet.GetField("elevation").GetData());
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vtkm::cont::ArrayHandle<vtkm::Float32> yVals =
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dataSet.GetField("y").GetData().CastToArrayHandle(vtkm::Float32(),
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VTKM_DEFAULT_STORAGE_TAG());
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vtkm::cont::ArrayHandle<vtkm::Float32> result =
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dataSet.GetField("elevation").GetData().CastToArrayHandle(vtkm::Float32(),
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VTKM_DEFAULT_STORAGE_TAG());
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for (vtkm::Id i = 0; i < result.GetNumberOfValues(); ++i)
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{
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VTKM_TEST_ASSERT(test_equal(yVals.GetPortalConstControl().Get(i) * 2.0,
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result.GetPortalConstControl().Get(i)),
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"Wrong result for PointElevation worklet");
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}
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}
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int UnitTestPointElevation(int, char *[])
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{
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return vtkm::cont::testing::Testing::Run(TestPointElevation);
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}
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