mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-20 02:55:47 +00:00
118 lines
3.8 KiB
C++
118 lines
3.8 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 <random>
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#include <vtkm/cont/ParticleArrayCopy.h>
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#include <vtkm/cont/testing/Testing.h>
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void TestParticleArrayCopy()
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{
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std::random_device device;
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std::default_random_engine generator(static_cast<vtkm::UInt32>(277));
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vtkm::FloatDefault x0(-1), x1(1);
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std::uniform_real_distribution<vtkm::FloatDefault> dist(x0, x1);
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std::vector<vtkm::Particle> particles;
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vtkm::Id N = 17;
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for (vtkm::Id i = 0; i < N; i++)
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{
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auto x = dist(generator);
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auto y = dist(generator);
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auto z = dist(generator);
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particles.push_back(vtkm::Particle(vtkm::Vec3f(x, y, z), i));
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}
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for (vtkm::Id i = 0; i < 2; i++)
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{
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auto particleAH = vtkm::cont::make_ArrayHandle(particles, vtkm::CopyFlag::Off);
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//Test copy position only
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if (i == 0)
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{
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vtkm::cont::ArrayHandle<vtkm::Vec3f> pos;
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vtkm::cont::ParticleArrayCopy<vtkm::Particle>(particleAH, pos);
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auto pPortal = particleAH.ReadPortal();
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for (vtkm::Id j = 0; j < N; j++)
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{
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auto p = pPortal.Get(j);
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auto pt = pos.ReadPortal().Get(j);
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VTKM_TEST_ASSERT(p.Pos == pt, "Positions do not match");
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}
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}
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else //Test copy everything
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{
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vtkm::cont::ArrayHandle<vtkm::Vec3f> pos;
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vtkm::cont::ArrayHandle<vtkm::Id> ids, steps;
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vtkm::cont::ArrayHandle<vtkm::ParticleStatus> status;
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vtkm::cont::ArrayHandle<vtkm::FloatDefault> ptime;
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vtkm::cont::ParticleArrayCopy<vtkm::Particle>(particleAH, pos, ids, steps, status, ptime);
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auto pPortal = particleAH.ReadPortal();
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for (vtkm::Id j = 0; j < N; j++)
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{
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auto p = pPortal.Get(j);
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auto pt = pos.ReadPortal().Get(j);
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VTKM_TEST_ASSERT(p.Pos == pt, "Positions do not match");
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VTKM_TEST_ASSERT(p.ID == ids.ReadPortal().Get(j), "IDs do not match");
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VTKM_TEST_ASSERT(p.NumSteps == steps.ReadPortal().Get(j), "Steps do not match");
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VTKM_TEST_ASSERT(p.Status == status.ReadPortal().Get(j), "Status do not match");
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VTKM_TEST_ASSERT(p.Time == ptime.ReadPortal().Get(j), "Times do not match");
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}
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}
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}
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//Test copying a vector of ArrayHandles.
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std::vector<vtkm::cont::ArrayHandle<vtkm::Particle>> particleVec;
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vtkm::Id totalNumParticles = 0;
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vtkm::Id pid = 0;
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for (vtkm::Id i = 0; i < 4; i++)
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{
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vtkm::Id n = 5 + i;
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std::vector<vtkm::Particle> vec;
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for (vtkm::Id j = 0; j < n; j++)
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{
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auto x = dist(generator);
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auto y = dist(generator);
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auto z = dist(generator);
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vec.push_back(vtkm::Particle(vtkm::Vec3f(x, y, z), pid));
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pid++;
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}
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auto ah = vtkm::cont::make_ArrayHandle(vec, vtkm::CopyFlag::On);
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particleVec.push_back(ah);
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totalNumParticles += ah.GetNumberOfValues();
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}
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vtkm::cont::ArrayHandle<vtkm::Vec3f> res;
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vtkm::cont::ParticleArrayCopy<vtkm::Particle>(particleVec, res);
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VTKM_TEST_ASSERT(res.GetNumberOfValues() == totalNumParticles, "Wrong number of particles");
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vtkm::Id resIdx = 0;
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auto resPortal = res.ReadPortal();
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for (const auto& v : particleVec)
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{
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vtkm::Id n = v.GetNumberOfValues();
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auto portal = v.ReadPortal();
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for (vtkm::Id i = 0; i < n; i++)
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{
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auto p = portal.Get(i);
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auto pRes = resPortal.Get(resIdx);
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VTKM_TEST_ASSERT(p.Pos == pRes, "Positions do not match");
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resIdx++;
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}
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}
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}
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int UnitTestParticleArrayCopy(int argc, char* argv[])
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{
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return vtkm::cont::testing::Testing::Run(TestParticleArrayCopy, argc, argv);
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}
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