mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-19 10:35:42 +00:00
129 lines
4.0 KiB
C++
129 lines
4.0 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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//
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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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#include <vtkm/cont/testing/Testing.h>
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#include <vtkm/filter/PointElevation.h>
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#include <vector>
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namespace
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{
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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::Vec3f_32> coordinates;
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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) / 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) / static_cast<vtkm::Float32>(dim - 1);
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vtkm::Float32 y = (x * x + z * z) / 2.0f;
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coordinates.push_back(vtkm::make_Vec(x, y, z));
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}
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}
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vtkm::Id numCells = (dim - 1) * (dim - 1);
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dataSet.AddCoordinateSystem(
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vtkm::cont::make_CoordinateSystem("coordinates", coordinates, vtkm::CopyFlag::On));
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vtkm::cont::CellSetExplicit<> cellSet;
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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::CELL_SHAPE_QUAD,
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4,
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vtkm::make_Vec<vtkm::Id>(
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j * dim + i, j * dim + i + 1, (j + 1) * dim + i + 1, (j + 1) * dim + i));
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}
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}
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cellSet.CompleteAddingCells(vtkm::Id(coordinates.size()));
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dataSet.SetCellSet(cellSet);
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return dataSet;
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}
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}
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void TestPointElevationNoPolicy()
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{
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std::cout << "Testing PointElevation Filter With No Policy" << std::endl;
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vtkm::cont::DataSet inputData = MakePointElevationTestDataSet();
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vtkm::filter::PointElevation filter;
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filter.SetLowPoint(0.0, 0.0, 0.0);
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filter.SetHighPoint(0.0, 1.0, 0.0);
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filter.SetRange(0.0, 2.0);
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filter.SetOutputFieldName("height");
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filter.SetUseCoordinateSystemAsField(true);
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auto result = filter.Execute(inputData);
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//verify the result
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VTKM_TEST_ASSERT(result.HasPointField("height"), "Output field missing.");
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vtkm::cont::ArrayHandle<vtkm::Float64> resultArrayHandle;
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result.GetPointField("height").GetData().CopyTo(resultArrayHandle);
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auto coordinates = inputData.GetCoordinateSystem().GetData();
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for (vtkm::Id i = 0; i < resultArrayHandle.GetNumberOfValues(); ++i)
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{
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VTKM_TEST_ASSERT(
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test_equal(coordinates.ReadPortal().Get(i)[1] * 2.0, resultArrayHandle.ReadPortal().Get(i)),
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"Wrong result for PointElevation worklet");
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}
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}
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void TestPointElevationWithPolicy()
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{
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//simple test
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std::cout << "Testing PointElevation Filter With Explicit Policy" << std::endl;
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vtkm::cont::DataSet inputData = MakePointElevationTestDataSet();
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vtkm::filter::PointElevation filter;
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filter.SetLowPoint(0.0, 0.0, 0.0);
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filter.SetHighPoint(0.0, 1.0, 0.0);
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filter.SetRange(0.0, 2.0);
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filter.SetUseCoordinateSystemAsField(true);
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vtkm::filter::PolicyDefault p;
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auto result = filter.Execute(inputData, p);
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//verify the result
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VTKM_TEST_ASSERT(result.HasPointField("elevation"), "Output field has wrong association");
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vtkm::cont::ArrayHandle<vtkm::Float64> resultArrayHandle;
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result.GetPointField("elevation").GetData().CopyTo(resultArrayHandle);
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auto coordinates = inputData.GetCoordinateSystem().GetData();
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for (vtkm::Id i = 0; i < resultArrayHandle.GetNumberOfValues(); ++i)
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{
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VTKM_TEST_ASSERT(
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test_equal(coordinates.ReadPortal().Get(i)[1] * 2.0, resultArrayHandle.ReadPortal().Get(i)),
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"Wrong result for PointElevation worklet");
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}
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}
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void TestPointElevation()
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{
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TestPointElevationNoPolicy();
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TestPointElevationWithPolicy();
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}
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int UnitTestPointElevationFilter(int argc, char* argv[])
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{
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return vtkm::cont::testing::Testing::Run(TestPointElevation, argc, argv);
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}
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