fb2d36be1e
See #163.
181 lines
7.2 KiB
C++
181 lines
7.2 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 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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#include <vtkm/exec/CellInterpolate.h>
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#include <vtkm/exec/FunctorBase.h>
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#include <vtkm/exec/ParametricCoordinates.h>
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#include <vtkm/exec/internal/ErrorMessageBuffer.h>
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#include <vtkm/CellTraits.h>
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#include <vtkm/StaticAssert.h>
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#include <vtkm/VecAxisAlignedPointCoordinates.h>
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#include <vtkm/VecVariable.h>
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#include <vtkm/testing/Testing.h>
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namespace
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{
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static const vtkm::IdComponent MAX_POINTS = 8;
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template <typename CellShapeTag>
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void GetMinMaxPoints(CellShapeTag,
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vtkm::CellTraitsTagSizeFixed,
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vtkm::IdComponent& minPoints,
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vtkm::IdComponent& maxPoints)
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{
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// If this line fails, then MAX_POINTS is not large enough to support all
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// cell shapes.
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VTKM_STATIC_ASSERT((vtkm::CellTraits<CellShapeTag>::NUM_POINTS <= MAX_POINTS));
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minPoints = maxPoints = vtkm::CellTraits<CellShapeTag>::NUM_POINTS;
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}
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template <typename CellShapeTag>
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void GetMinMaxPoints(CellShapeTag,
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vtkm::CellTraitsTagSizeVariable,
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vtkm::IdComponent& minPoints,
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vtkm::IdComponent& maxPoints)
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{
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minPoints = 1;
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maxPoints = MAX_POINTS;
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}
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template <typename FieldType>
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struct TestInterpolateFunctor
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{
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typedef typename vtkm::VecTraits<FieldType>::ComponentType ComponentType;
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template <typename CellShapeTag, typename FieldVecType>
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void DoTestWithField(CellShapeTag shape, const FieldVecType& fieldValues) const
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{
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vtkm::IdComponent numPoints = fieldValues.GetNumberOfComponents();
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FieldType averageValue = vtkm::TypeTraits<FieldType>::ZeroInitialization();
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for (vtkm::IdComponent pointIndex = 0; pointIndex < numPoints; pointIndex++)
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{
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averageValue = averageValue + fieldValues[pointIndex];
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}
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averageValue = static_cast<ComponentType>(1.0 / numPoints) * averageValue;
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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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std::cout << " Test interpolated value at each cell node." << std::endl;
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for (vtkm::IdComponent pointIndex = 0; pointIndex < numPoints; pointIndex++)
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{
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vtkm::Vec<vtkm::FloatDefault, 3> pcoord =
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vtkm::exec::ParametricCoordinatesPoint(numPoints, pointIndex, shape, workletProxy);
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VTKM_TEST_ASSERT(!errorMessage.IsErrorRaised(), messageBuffer);
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FieldType interpolatedValue =
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vtkm::exec::CellInterpolate(fieldValues, pcoord, shape, workletProxy);
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VTKM_TEST_ASSERT(!errorMessage.IsErrorRaised(), messageBuffer);
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VTKM_TEST_ASSERT(test_equal(fieldValues[pointIndex], interpolatedValue),
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"Interpolation at point not point value.");
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}
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if (numPoints > 0)
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{
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std::cout << " Test interpolated value at cell center." << std::endl;
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vtkm::Vec<vtkm::FloatDefault, 3> pcoord =
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vtkm::exec::ParametricCoordinatesCenter(numPoints, shape, workletProxy);
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VTKM_TEST_ASSERT(!errorMessage.IsErrorRaised(), messageBuffer);
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FieldType interpolatedValue =
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vtkm::exec::CellInterpolate(fieldValues, pcoord, shape, workletProxy);
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VTKM_TEST_ASSERT(!errorMessage.IsErrorRaised(), messageBuffer);
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VTKM_TEST_ASSERT(test_equal(averageValue, interpolatedValue),
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"Interpolation at center not average value.");
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}
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}
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template <typename CellShapeTag>
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void DoTest(CellShapeTag shape, vtkm::IdComponent numPoints) const
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{
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vtkm::VecVariable<FieldType, MAX_POINTS> fieldValues;
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for (vtkm::IdComponent pointIndex = 0; pointIndex < numPoints; pointIndex++)
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{
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FieldType value = TestValue(pointIndex + 1, FieldType());
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fieldValues.Append(value);
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}
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this->DoTestWithField(shape, fieldValues);
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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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vtkm::IdComponent minPoints;
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vtkm::IdComponent maxPoints;
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GetMinMaxPoints(
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CellShapeTag(), typename vtkm::CellTraits<CellShapeTag>::IsSizeFixed(), minPoints, maxPoints);
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std::cout << "--- Test shape tag directly" << std::endl;
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for (vtkm::IdComponent numPoints = minPoints; numPoints <= maxPoints; numPoints++)
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{
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std::cout << numPoints << " points" << std::endl;
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this->DoTest(CellShapeTag(), numPoints);
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}
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std::cout << "--- Test generic shape tag" << std::endl;
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vtkm::CellShapeTagGeneric genericShape(CellShapeTag::Id);
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for (vtkm::IdComponent numPoints = minPoints; numPoints <= maxPoints; numPoints++)
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{
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std::cout << numPoints << " points" << std::endl;
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this->DoTest(genericShape, numPoints);
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}
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}
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};
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void TestInterpolate()
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{
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std::cout << "======== Float32 ==========================" << std::endl;
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vtkm::testing::Testing::TryAllCellShapes(TestInterpolateFunctor<vtkm::Float32>());
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std::cout << "======== Float64 ==========================" << std::endl;
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vtkm::testing::Testing::TryAllCellShapes(TestInterpolateFunctor<vtkm::Float64>());
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std::cout << "======== Vec<Float32,3> ===================" << std::endl;
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vtkm::testing::Testing::TryAllCellShapes(TestInterpolateFunctor<vtkm::Vec<vtkm::Float32, 3>>());
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std::cout << "======== Vec<Float64,3> ===================" << std::endl;
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vtkm::testing::Testing::TryAllCellShapes(TestInterpolateFunctor<vtkm::Vec<vtkm::Float64, 3>>());
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TestInterpolateFunctor<vtkm::Vec<vtkm::FloatDefault, 3>> testFunctor;
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vtkm::Vec<vtkm::FloatDefault, 3> origin = TestValue(0, vtkm::Vec<vtkm::FloatDefault, 3>());
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vtkm::Vec<vtkm::FloatDefault, 3> spacing = TestValue(1, vtkm::Vec<vtkm::FloatDefault, 3>());
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std::cout << "======== Uniform Point Coordinates 1D =====" << std::endl;
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testFunctor.DoTestWithField(vtkm::CellShapeTagLine(),
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vtkm::VecAxisAlignedPointCoordinates<1>(origin, spacing));
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std::cout << "======== Uniform Point Coordinates 2D =====" << std::endl;
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testFunctor.DoTestWithField(vtkm::CellShapeTagQuad(),
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vtkm::VecAxisAlignedPointCoordinates<2>(origin, spacing));
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std::cout << "======== Uniform Point Coordinates 3D =====" << std::endl;
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testFunctor.DoTestWithField(vtkm::CellShapeTagHexahedron(),
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vtkm::VecAxisAlignedPointCoordinates<3>(origin, spacing));
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}
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} // anonymous namespace
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int UnitTestCellInterpolate(int, char* [])
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{
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return vtkm::testing::Testing::Run(TestInterpolate);
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}
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