924 lines
39 KiB
C++
924 lines
39 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 <typeinfo>
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#include <vtkm/cont/ArrayCopy.h>
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#include <vtkm/cont/ArrayHandle.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 <vtkm/filter/mesh_info/GhostCellClassify.h>
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#include <vtkm/io/VTKDataSetReader.h>
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#include <vtkm/worklet/ParticleAdvection.h>
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#include <vtkm/worklet/particleadvection/EulerIntegrator.h>
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#include <vtkm/worklet/particleadvection/Field.h>
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#include <vtkm/worklet/particleadvection/GridEvaluators.h>
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#include <vtkm/worklet/particleadvection/Particles.h>
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#include <vtkm/worklet/particleadvection/RK4Integrator.h>
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#include <vtkm/worklet/particleadvection/Stepper.h>
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#include <vtkm/worklet/testing/GenerateTestDataSets.h>
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#include <random>
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namespace
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{
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vtkm::FloatDefault vecData[125 * 3] = {
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-0.00603248f, -0.0966396f, -0.000732792f, 0.000530014f, -0.0986189f, -0.000806706f,
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0.00684929f, -0.100098f, -0.000876566f, 0.0129235f, -0.101102f, -0.000942341f,
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0.0187515f, -0.101656f, -0.00100401f, 0.0706091f, -0.083023f, -0.00144278f,
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0.0736404f, -0.0801616f, -0.00145784f, 0.0765194f, -0.0772063f, -0.00147036f,
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0.0792559f, -0.0741751f, -0.00148051f, 0.0818589f, -0.071084f, -0.00148843f,
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0.103585f, -0.0342287f, -0.001425f, 0.104472f, -0.0316147f, -0.00140433f,
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0.105175f, -0.0291574f, -0.00138057f, 0.105682f, -0.0268808f, -0.00135357f,
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0.105985f, -0.0248099f, -0.00132315f, -0.00244603f, -0.0989576f, -0.000821705f,
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0.00389525f, -0.100695f, -0.000894513f, 0.00999301f, -0.10193f, -0.000963114f,
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0.0158452f, -0.102688f, -0.00102747f, 0.0214509f, -0.102995f, -0.00108757f,
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0.0708166f, -0.081799f, -0.00149941f, 0.0736939f, -0.0787879f, -0.00151236f,
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0.0764359f, -0.0756944f, -0.00152297f, 0.0790546f, -0.0725352f, -0.00153146f,
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0.0815609f, -0.0693255f, -0.001538f, -0.00914287f, -0.104658f, -0.001574f,
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-0.00642891f, -0.10239f, -0.00159659f, -0.00402289f, -0.0994835f, -0.00160731f,
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-0.00194792f, -0.0959752f, -0.00160528f, -0.00022818f, -0.0919077f, -0.00158957f,
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-0.0134913f, -0.0274735f, -9.50056e-05f, -0.0188683f, -0.023273f, 0.000194107f,
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-0.0254516f, -0.0197589f, 0.000529693f, -0.0312798f, -0.0179514f, 0.00083619f,
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-0.0360426f, -0.0177537f, 0.00110164f, 0.0259929f, -0.0204479f, -0.000304646f,
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0.033336f, -0.0157385f, -0.000505569f, 0.0403427f, -0.0104637f, -0.000693529f,
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0.0469371f, -0.00477766f, -0.000865609f, 0.0530722f, 0.0011701f, -0.00102f,
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-0.0121869f, -0.10317f, -0.0015868f, -0.0096549f, -0.100606f, -0.00160377f,
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-0.00743038f, -0.0973796f, -0.00160783f, -0.00553901f, -0.0935261f, -0.00159792f,
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-0.00400821f, -0.0890871f, -0.00157287f, -0.0267803f, -0.0165823f, 0.000454173f,
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-0.0348303f, -0.011642f, 0.000881271f, -0.0424964f, -0.00870761f, 0.00129226f,
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-0.049437f, -0.00781358f, 0.0016728f, -0.0552635f, -0.00888708f, 0.00200659f,
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-0.0629746f, -0.0721524f, -0.00160475f, -0.0606813f, -0.0677576f, -0.00158427f,
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-0.0582203f, -0.0625009f, -0.00154304f, -0.0555686f, -0.0563905f, -0.00147822f,
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-0.0526988f, -0.0494369f, -0.00138643f, 0.0385695f, 0.115704f, 0.00674413f,
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0.056434f, 0.128273f, 0.00869052f, 0.0775564f, 0.137275f, 0.0110399f,
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0.102515f, 0.140823f, 0.0138637f, 0.131458f, 0.136024f, 0.0171804f,
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0.0595175f, -0.0845927f, 0.00512454f, 0.0506615f, -0.0680369f, 0.00376604f,
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0.0434904f, -0.0503557f, 0.00261592f, 0.0376711f, -0.0318716f, 0.00163301f,
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0.0329454f, -0.0128019f, 0.000785352f, -0.0664062f, -0.0701094f, -0.00160644f,
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-0.0641074f, -0.0658893f, -0.00158969f, -0.0616054f, -0.0608302f, -0.00155303f,
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-0.0588734f, -0.0549447f, -0.00149385f, -0.0558797f, -0.0482482f, -0.00140906f,
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0.0434062f, 0.102969f, 0.00581269f, 0.0619547f, 0.112838f, 0.00742057f,
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0.0830229f, 0.118752f, 0.00927516f, 0.106603f, 0.119129f, 0.0113757f,
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0.132073f, 0.111946f, 0.0136613f, -0.0135758f, -0.0934604f, -0.000533868f,
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-0.00690763f, -0.0958773f, -0.000598878f, -0.000475275f, -0.0977838f, -0.000660985f,
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0.00571866f, -0.0992032f, -0.0007201f, 0.0116724f, -0.10016f, -0.000776144f,
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0.0651428f, -0.0850475f, -0.00120243f, 0.0682895f, -0.0823666f, -0.00121889f,
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0.0712792f, -0.0795772f, -0.00123291f, 0.0741224f, -0.0766981f, -0.00124462f,
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0.076829f, -0.0737465f, -0.00125416f, 0.10019f, -0.0375515f, -0.00121866f,
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0.101296f, -0.0348723f, -0.00120216f, 0.102235f, -0.0323223f, -0.00118309f,
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0.102994f, -0.0299234f, -0.00116131f, 0.103563f, -0.0276989f, -0.0011367f,
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-0.00989236f, -0.0958821f, -0.000608883f, -0.00344154f, -0.0980645f, -0.000673641f,
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0.00277318f, -0.0997337f, -0.000735354f, 0.00874908f, -0.100914f, -0.000793927f,
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0.0144843f, -0.101629f, -0.000849279f, 0.0654428f, -0.0839355f, -0.00125739f,
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0.0684225f, -0.0810989f, -0.00127208f, 0.0712599f, -0.0781657f, -0.00128444f,
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0.0739678f, -0.0751541f, -0.00129465f, 0.076558f, -0.0720804f, -0.00130286f,
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-0.0132841f, -0.103948f, -0.00131159f, -0.010344f, -0.102328f, -0.0013452f,
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-0.00768637f, -0.100054f, -0.00136938f, -0.00533293f, -0.0971572f, -0.00138324f,
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-0.00330643f, -0.0936735f, -0.00138586f, -0.0116984f, -0.0303752f, -0.000229102f,
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-0.0149879f, -0.0265231f, -3.43823e-05f, -0.0212917f, -0.0219544f, 0.000270283f,
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-0.0277756f, -0.0186879f, 0.000582781f, -0.0335115f, -0.0171098f, 0.00086919f,
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0.0170095f, -0.025299f, -3.73557e-05f, 0.024552f, -0.0214351f, -0.000231975f,
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0.0318714f, -0.0168568f, -0.000417463f, 0.0388586f, -0.0117131f, -0.000589883f,
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0.0454388f, -0.00615626f, -0.000746594f, -0.0160785f, -0.102675f, -0.00132891f,
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-0.0133174f, -0.100785f, -0.00135859f, -0.0108365f, -0.0982184f, -0.00137801f,
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-0.00865931f, -0.0950053f, -0.00138614f, -0.00681126f, -0.0911806f, -0.00138185f,
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-0.0208973f, -0.0216631f, 0.000111231f, -0.0289373f, -0.0151081f, 0.000512553f,
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-0.0368736f, -0.0104306f, 0.000911793f, -0.0444294f, -0.00773838f, 0.00129762f,
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-0.0512663f, -0.00706554f, 0.00165611f
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};
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}
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void GenerateRandomParticles(std::vector<vtkm::Particle>& points,
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const std::size_t N,
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const vtkm::Bounds& bounds,
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const std::size_t seed = 314)
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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>(seed));
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vtkm::FloatDefault zero(0), one(1);
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std::uniform_real_distribution<vtkm::FloatDefault> distribution(zero, one);
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points.resize(0);
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for (std::size_t i = 0; i < N; i++)
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{
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vtkm::FloatDefault rx = distribution(generator);
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vtkm::FloatDefault ry = distribution(generator);
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vtkm::FloatDefault rz = distribution(generator);
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vtkm::Vec3f p;
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p[0] = static_cast<vtkm::FloatDefault>(bounds.X.Min + rx * bounds.X.Length());
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p[1] = static_cast<vtkm::FloatDefault>(bounds.Y.Min + ry * bounds.Y.Length());
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p[2] = static_cast<vtkm::FloatDefault>(bounds.Z.Min + rz * bounds.Z.Length());
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points.push_back(vtkm::Particle(p, static_cast<vtkm::Id>(i)));
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}
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}
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void CreateConstantVectorField(vtkm::Id num,
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const vtkm::Vec3f& vec,
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vtkm::cont::ArrayHandle<vtkm::Vec3f>& vecField)
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{
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vtkm::cont::ArrayHandleConstant<vtkm::Vec3f> vecConst;
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vecConst = vtkm::cont::make_ArrayHandleConstant(vec, num);
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vtkm::cont::ArrayCopy(vecConst, vecField);
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}
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class TestEvaluatorWorklet : public vtkm::worklet::WorkletMapField
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{
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public:
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using ControlSignature = void(FieldIn inputPoint,
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ExecObject evaluator,
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FieldOut validity,
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FieldOut outputPoint);
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using ExecutionSignature = void(_1, _2, _3, _4);
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template <typename EvaluatorType>
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VTKM_EXEC void operator()(vtkm::Particle& pointIn,
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const EvaluatorType& evaluator,
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vtkm::worklet::particleadvection::GridEvaluatorStatus& status,
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vtkm::Vec3f& pointOut) const
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{
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vtkm::VecVariable<vtkm::Vec3f, 2> values;
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status = evaluator.Evaluate(pointIn.Pos, pointIn.Time, values);
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pointOut = values[0];
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}
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};
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template <typename EvalType>
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void ValidateEvaluator(const EvalType& eval,
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const std::vector<vtkm::Particle>& pointIns,
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const vtkm::Vec3f& vec,
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const std::string& msg)
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{
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using EvalTester = TestEvaluatorWorklet;
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using EvalTesterDispatcher = vtkm::worklet::DispatcherMapField<EvalTester>;
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using Status = vtkm::worklet::particleadvection::GridEvaluatorStatus;
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EvalTester evalTester;
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EvalTesterDispatcher evalTesterDispatcher(evalTester);
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vtkm::cont::ArrayHandle<vtkm::Particle> pointsHandle =
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vtkm::cont::make_ArrayHandle(pointIns, vtkm::CopyFlag::Off);
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vtkm::Id numPoints = pointsHandle.GetNumberOfValues();
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vtkm::cont::ArrayHandle<Status> evalStatus;
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vtkm::cont::ArrayHandle<vtkm::Vec3f> evalResults;
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evalTesterDispatcher.Invoke(pointsHandle, eval, evalStatus, evalResults);
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auto statusPortal = evalStatus.ReadPortal();
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auto resultsPortal = evalResults.ReadPortal();
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for (vtkm::Id index = 0; index < numPoints; index++)
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{
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Status status = statusPortal.Get(index);
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vtkm::Vec3f result = resultsPortal.Get(index);
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VTKM_TEST_ASSERT(status.CheckOk(), "Error in evaluator for " + msg);
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VTKM_TEST_ASSERT(result == vec, "Error in evaluator result for " + msg);
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}
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}
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class TestIntegratorWorklet : public vtkm::worklet::WorkletMapField
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{
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public:
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using ControlSignature = void(FieldIn inputPoint,
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ExecObject integrator,
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FieldOut validity,
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FieldOut outputPoint);
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using ExecutionSignature = void(_1, _2, _3, _4);
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template <typename Particle, typename IntegratorType>
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VTKM_EXEC void operator()(Particle& pointIn,
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const IntegratorType integrator,
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vtkm::worklet::particleadvection::IntegratorStatus& status,
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vtkm::Vec3f& pointOut) const
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{
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vtkm::FloatDefault time = 0;
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status = integrator.Step(pointIn, time, pointOut);
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if (status.CheckSpatialBounds())
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status = integrator.SmallStep(pointIn, time, pointOut);
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}
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};
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template <typename IntegratorType>
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void ValidateIntegrator(const IntegratorType& integrator,
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const std::vector<vtkm::Particle>& pointIns,
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const std::vector<vtkm::Vec3f>& expStepResults,
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const std::string& msg)
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{
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using IntegratorTester = TestIntegratorWorklet;
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using IntegratorTesterDispatcher = vtkm::worklet::DispatcherMapField<IntegratorTester>;
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using Status = vtkm::worklet::particleadvection::IntegratorStatus;
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IntegratorTesterDispatcher integratorTesterDispatcher;
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auto pointsHandle = vtkm::cont::make_ArrayHandle(pointIns, vtkm::CopyFlag::Off);
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vtkm::Id numPoints = pointsHandle.GetNumberOfValues();
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vtkm::cont::ArrayHandle<Status> stepStatus;
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vtkm::cont::ArrayHandle<vtkm::Vec3f> stepResults;
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integratorTesterDispatcher.Invoke(pointsHandle, integrator, stepStatus, stepResults);
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auto statusPortal = stepStatus.ReadPortal();
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auto pointsPortal = pointsHandle.ReadPortal();
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auto resultsPortal = stepResults.ReadPortal();
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for (vtkm::Id index = 0; index < numPoints; index++)
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{
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Status status = statusPortal.Get(index);
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vtkm::Vec3f result = resultsPortal.Get(index);
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VTKM_TEST_ASSERT(status.CheckOk(), "Error in evaluator for " + msg);
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if (status.CheckSpatialBounds())
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VTKM_TEST_ASSERT(result == pointsPortal.Get(index).Pos,
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"Error in evaluator result for [OUTSIDE SPATIAL]" + msg);
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else
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VTKM_TEST_ASSERT(result == expStepResults[static_cast<size_t>(index)],
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"Error in evaluator result for " + msg);
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}
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}
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template <typename IntegratorType>
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void ValidateIntegratorForBoundary(const vtkm::Bounds& bounds,
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const IntegratorType& integrator,
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const std::vector<vtkm::Particle>& pointIns,
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const std::string& msg)
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{
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using IntegratorTester = TestIntegratorWorklet;
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using IntegratorTesterDispatcher = vtkm::worklet::DispatcherMapField<IntegratorTester>;
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using Status = vtkm::worklet::particleadvection::IntegratorStatus;
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IntegratorTesterDispatcher integratorTesterDispatcher;
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auto pointsHandle = vtkm::cont::make_ArrayHandle(pointIns, vtkm::CopyFlag::Off);
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vtkm::Id numPoints = pointsHandle.GetNumberOfValues();
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vtkm::cont::ArrayHandle<Status> stepStatus;
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vtkm::cont::ArrayHandle<vtkm::Vec3f> stepResults;
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integratorTesterDispatcher.Invoke(pointsHandle, integrator, stepStatus, stepResults);
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auto statusPortal = stepStatus.ReadPortal();
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auto resultsPortal = stepResults.ReadPortal();
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for (vtkm::Id index = 0; index < numPoints; index++)
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{
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Status status = statusPortal.Get(index);
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VTKM_TEST_ASSERT(status.CheckOk(), "Error in evaluator for " + msg);
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VTKM_TEST_ASSERT(status.CheckSpatialBounds(), "Error in evaluator for " + msg);
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//Result should be push just outside of the bounds.
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vtkm::Vec3f result = resultsPortal.Get(index);
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VTKM_TEST_ASSERT(!bounds.Contains(result),
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"Integrator did not step out of boundary for " + msg);
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}
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}
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void TestEvaluators()
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{
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using FieldHandle = vtkm::cont::ArrayHandle<vtkm::Vec3f>;
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using FieldType = vtkm::worklet::particleadvection::VelocityField<FieldHandle>;
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using GridEvalType = vtkm::worklet::particleadvection::GridEvaluator<FieldType>;
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using RK4Type = vtkm::worklet::particleadvection::RK4Integrator<GridEvalType>;
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using Stepper = vtkm::worklet::particleadvection::Stepper<RK4Type, GridEvalType>;
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std::vector<vtkm::Vec3f> vecs;
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vtkm::FloatDefault vals[3] = { -1., 0., 1. };
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for (int i = 0; i < 3; i++)
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for (int j = 0; j < 3; j++)
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for (int k = 0; k < 3; k++)
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if (!(i == 1 && j == 1 && k == 1)) //don't add a [0,0,0] vec.
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vecs.push_back(vtkm::Vec3f(vals[i], vals[j], vals[k]));
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std::vector<vtkm::Bounds> bounds;
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bounds.push_back(vtkm::Bounds(0, 10, 0, 10, 0, 10));
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bounds.push_back(vtkm::Bounds(-1, 1, -1, 1, -1, 1));
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bounds.push_back(vtkm::Bounds(0, 1, 0, 1, -1, 1));
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bounds.push_back(vtkm::Bounds(0, 1000, 0, 1, -1, 1000));
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bounds.push_back(vtkm::Bounds(0, 1000, -100, 0, -1, 1000));
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std::vector<vtkm::Id3> dims;
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dims.push_back(vtkm::Id3(5, 5, 5));
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dims.push_back(vtkm::Id3(10, 5, 5));
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for (auto& dim : dims)
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{
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for (auto& vec : vecs)
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{
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for (auto& bound : bounds)
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{
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auto dataSets = vtkm::worklet::testing::CreateAllDataSets(bound, dim, false);
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vtkm::cont::ArrayHandle<vtkm::Vec3f> vecField;
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CreateConstantVectorField(dim[0] * dim[1] * dim[2], vec, vecField);
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FieldType velocities(vecField);
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//vtkm::FloatDefault stepSize = 0.01f;
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vtkm::FloatDefault stepSize = 0.1f;
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std::vector<vtkm::Particle> pointIns;
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std::vector<vtkm::Vec3f> stepResult;
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//Generate points 2 steps inside the bounding box.
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vtkm::Bounds interiorBounds = bound;
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interiorBounds.X.Min += 2 * stepSize;
|
|
interiorBounds.Y.Min += 2 * stepSize;
|
|
interiorBounds.Z.Min += 2 * stepSize;
|
|
interiorBounds.X.Max -= 2 * stepSize;
|
|
interiorBounds.Y.Max -= 2 * stepSize;
|
|
interiorBounds.Z.Max -= 2 * stepSize;
|
|
|
|
GenerateRandomParticles(pointIns, 38, interiorBounds);
|
|
for (auto& p : pointIns)
|
|
stepResult.push_back(p.Pos + vec * stepSize);
|
|
|
|
vtkm::Range xRange, yRange, zRange;
|
|
|
|
if (vec[0] > 0)
|
|
xRange = vtkm::Range(bound.X.Max - stepSize / 2., bound.X.Max);
|
|
else
|
|
xRange = vtkm::Range(bound.X.Min, bound.X.Min + stepSize / 2.);
|
|
if (vec[1] > 0)
|
|
yRange = vtkm::Range(bound.Y.Max - stepSize / 2., bound.Y.Max);
|
|
else
|
|
yRange = vtkm::Range(bound.Y.Min, bound.Y.Min + stepSize / 2.);
|
|
if (vec[2] > 0)
|
|
zRange = vtkm::Range(bound.Z.Max - stepSize / 2., bound.Z.Max);
|
|
else
|
|
zRange = vtkm::Range(bound.Z.Min, bound.Z.Min + stepSize / 2.);
|
|
|
|
vtkm::Bounds forBoundary(xRange, yRange, zRange);
|
|
|
|
// Generate a bunch of boundary points towards the face of the direction
|
|
// of the velocity field
|
|
// All velocities are in the +ve direction.
|
|
|
|
std::vector<vtkm::Particle> boundaryPoints;
|
|
GenerateRandomParticles(boundaryPoints, 10, forBoundary, 919);
|
|
|
|
for (auto& ds : dataSets)
|
|
{
|
|
GridEvalType gridEval(ds.GetCoordinateSystem(), ds.GetCellSet(), velocities);
|
|
ValidateEvaluator(gridEval, pointIns, vec, "grid evaluator");
|
|
|
|
Stepper rk4(gridEval, stepSize);
|
|
ValidateIntegrator(rk4, pointIns, stepResult, "constant vector RK4");
|
|
ValidateIntegratorForBoundary(bound, rk4, boundaryPoints, "constant vector RK4");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void TestGhostCellEvaluators()
|
|
{
|
|
using FieldHandle = vtkm::cont::ArrayHandle<vtkm::Vec3f>;
|
|
using FieldType = vtkm::worklet::particleadvection::VelocityField<FieldHandle>;
|
|
using GridEvalType = vtkm::worklet::particleadvection::GridEvaluator<FieldType>;
|
|
using RK4Type = vtkm::worklet::particleadvection::RK4Integrator<GridEvalType>;
|
|
using Stepper = vtkm::worklet::particleadvection::Stepper<RK4Type, GridEvalType>;
|
|
|
|
constexpr vtkm::Id nX = 6;
|
|
constexpr vtkm::Id nY = 6;
|
|
constexpr vtkm::Id nZ = 6;
|
|
|
|
vtkm::Bounds bounds(0,
|
|
static_cast<vtkm::FloatDefault>(nX),
|
|
0,
|
|
static_cast<vtkm::FloatDefault>(nY),
|
|
0,
|
|
static_cast<vtkm::FloatDefault>(nZ));
|
|
vtkm::Id3 dims(nX + 1, nY + 1, nZ + 1);
|
|
|
|
auto dataSets = vtkm::worklet::testing::CreateAllDataSets(bounds, dims, true);
|
|
for (auto& ds : dataSets)
|
|
{
|
|
vtkm::cont::ArrayHandle<vtkm::Vec3f> vecField;
|
|
vtkm::Vec3f vec(1, 0, 0);
|
|
CreateConstantVectorField(dims[0] * dims[1] * dims[2], vec, vecField);
|
|
// ds.AddPointField("vec", vecField);
|
|
FieldType velocities(vecField);
|
|
|
|
GridEvalType gridEval(ds, velocities);
|
|
|
|
vtkm::FloatDefault stepSize = static_cast<vtkm::FloatDefault>(0.1);
|
|
Stepper rk4(gridEval, stepSize);
|
|
|
|
vtkm::worklet::ParticleAdvection pa;
|
|
std::vector<vtkm::Particle> seeds;
|
|
//Points in a ghost cell.
|
|
seeds.push_back(vtkm::Particle(vtkm::Vec3f(.5, .5, .5), 0));
|
|
seeds.push_back(vtkm::Particle(vtkm::Vec3f(.5, 3, 3), 1));
|
|
seeds.push_back(vtkm::Particle(vtkm::Vec3f(5.5, 5.5, 5.5), 2));
|
|
|
|
//Point inside
|
|
seeds.push_back(vtkm::Particle(vtkm::Vec3f(3, 3, 3), 3));
|
|
|
|
auto seedArray = vtkm::cont::make_ArrayHandle(seeds, vtkm::CopyFlag::Off);
|
|
auto res = pa.Run(rk4, seedArray, 10000);
|
|
|
|
auto posPortal = res.Particles.ReadPortal();
|
|
vtkm::Id numSeeds = seedArray.GetNumberOfValues();
|
|
for (vtkm::Id i = 0; i < numSeeds; i++)
|
|
{
|
|
const auto& p = posPortal.Get(i);
|
|
VTKM_TEST_ASSERT(p.Status.CheckSpatialBounds(), "Particle did not leave the dataset.");
|
|
VTKM_TEST_ASSERT(p.Status.CheckInGhostCell(), "Particle did not end up in ghost cell.");
|
|
|
|
//Particles that start in a ghost cell should take no steps.
|
|
if (p.ID == 0 || p.ID == 1 || p.ID == 2)
|
|
VTKM_TEST_ASSERT(p.NumSteps == 0, "Particle in ghost cell should *not* take any steps");
|
|
else if (p.ID == 3)
|
|
VTKM_TEST_ASSERT(p.NumSteps == 21, "Wrong number of steps for particle with ghost cells");
|
|
}
|
|
}
|
|
}
|
|
|
|
void ValidateParticleAdvectionResult(
|
|
const vtkm::worklet::ParticleAdvectionResult<vtkm::Particle>& res,
|
|
vtkm::Id nSeeds,
|
|
vtkm::Id maxSteps)
|
|
{
|
|
VTKM_TEST_ASSERT(res.Particles.GetNumberOfValues() == nSeeds,
|
|
"Number of output particles does not match input.");
|
|
auto portal = res.Particles.ReadPortal();
|
|
for (vtkm::Id i = 0; i < nSeeds; i++)
|
|
{
|
|
auto stepsTaken = portal.Get(i).NumSteps;
|
|
auto status = portal.Get(i).Status;
|
|
VTKM_TEST_ASSERT(stepsTaken <= maxSteps, "Too many steps taken in particle advection");
|
|
if (stepsTaken == maxSteps)
|
|
VTKM_TEST_ASSERT(status.CheckTerminate(), "Particle expected to be terminated");
|
|
else
|
|
VTKM_TEST_ASSERT(status.CheckSpatialBounds() || status.CheckTemporalBounds(),
|
|
"Particle expected to be outside spatial/temporal bounds");
|
|
}
|
|
}
|
|
|
|
void ValidateStreamlineResult(const vtkm::worklet::StreamlineResult<vtkm::Particle>& res,
|
|
vtkm::Id nSeeds,
|
|
vtkm::Id maxSteps)
|
|
{
|
|
VTKM_TEST_ASSERT(res.PolyLines.GetNumberOfCells() == nSeeds,
|
|
"Number of output streamlines does not match input.");
|
|
auto portal = res.Particles.ReadPortal();
|
|
for (vtkm::Id i = 0; i < nSeeds; i++)
|
|
{
|
|
VTKM_TEST_ASSERT(portal.Get(i).NumSteps <= maxSteps, "Too many steps taken in streamline");
|
|
VTKM_TEST_ASSERT(portal.Get(i).Status.CheckOk(), "Bad status in streamline");
|
|
}
|
|
VTKM_TEST_ASSERT(res.Particles.GetNumberOfValues() == nSeeds,
|
|
"Number of output particles does not match input.");
|
|
}
|
|
|
|
void TestIntegrators()
|
|
{
|
|
using FieldHandle = vtkm::cont::ArrayHandle<vtkm::Vec3f>;
|
|
using FieldType = vtkm::worklet::particleadvection::VelocityField<FieldHandle>;
|
|
using GridEvalType = vtkm::worklet::particleadvection::GridEvaluator<FieldType>;
|
|
|
|
const vtkm::Id3 dims(5, 5, 5);
|
|
const vtkm::Bounds bounds(0., 1., 0., 1., .0, .1);
|
|
auto dataSets = vtkm::worklet::testing::CreateAllDataSets(bounds, dims, false);
|
|
|
|
const vtkm::Id nSeeds = 3;
|
|
const vtkm::Id maxSteps = 10;
|
|
const vtkm::FloatDefault stepSize = 0.01f;
|
|
|
|
vtkm::Id nElements = dims[0] * dims[1] * dims[2];
|
|
std::vector<vtkm::Vec3f> fieldData;
|
|
for (vtkm::Id i = 0; i < nElements; i++)
|
|
fieldData.push_back(vtkm::Vec3f(0., 0., 1.));
|
|
FieldHandle fieldValues = vtkm::cont::make_ArrayHandle(fieldData, vtkm::CopyFlag::Off);
|
|
FieldType velocities(fieldValues);
|
|
|
|
for (auto& ds : dataSets)
|
|
{
|
|
GridEvalType eval(ds, velocities);
|
|
|
|
//Generate three random points.
|
|
std::vector<vtkm::Particle> points;
|
|
GenerateRandomParticles(points, 3, bounds);
|
|
|
|
vtkm::worklet::ParticleAdvection pa;
|
|
vtkm::worklet::ParticleAdvectionResult<vtkm::Particle> res;
|
|
{
|
|
auto seeds = vtkm::cont::make_ArrayHandle(points, vtkm::CopyFlag::On);
|
|
using IntegratorType = vtkm::worklet::particleadvection::RK4Integrator<GridEvalType>;
|
|
using Stepper = vtkm::worklet::particleadvection::Stepper<IntegratorType, GridEvalType>;
|
|
Stepper rk4(eval, stepSize);
|
|
res = pa.Run(rk4, seeds, maxSteps);
|
|
ValidateParticleAdvectionResult(res, nSeeds, maxSteps);
|
|
}
|
|
{
|
|
auto seeds = vtkm::cont::make_ArrayHandle(points, vtkm::CopyFlag::On);
|
|
using IntegratorType = vtkm::worklet::particleadvection::EulerIntegrator<GridEvalType>;
|
|
using Stepper = vtkm::worklet::particleadvection::Stepper<IntegratorType, GridEvalType>;
|
|
Stepper euler(eval, stepSize);
|
|
res = pa.Run(euler, seeds, maxSteps);
|
|
ValidateParticleAdvectionResult(res, nSeeds, maxSteps);
|
|
}
|
|
}
|
|
}
|
|
|
|
void TestParticleWorkletsWithDataSetTypes()
|
|
{
|
|
using FieldHandle = vtkm::cont::ArrayHandle<vtkm::Vec3f>;
|
|
using FieldType = vtkm::worklet::particleadvection::VelocityField<FieldHandle>;
|
|
using GridEvalType = vtkm::worklet::particleadvection::GridEvaluator<FieldType>;
|
|
using RK4Type = vtkm::worklet::particleadvection::RK4Integrator<GridEvalType>;
|
|
using Stepper = vtkm::worklet::particleadvection::Stepper<RK4Type, GridEvalType>;
|
|
vtkm::FloatDefault stepSize = 0.01f;
|
|
|
|
const vtkm::Id3 dims(5, 5, 5);
|
|
vtkm::Id nElements = dims[0] * dims[1] * dims[2] * 3;
|
|
|
|
std::vector<vtkm::Vec3f> field;
|
|
for (vtkm::Id i = 0; i < nElements; i++)
|
|
{
|
|
vtkm::FloatDefault x = vecData[i];
|
|
vtkm::FloatDefault y = vecData[++i];
|
|
vtkm::FloatDefault z = vecData[++i];
|
|
vtkm::Vec3f vec(x, y, z);
|
|
field.push_back(vtkm::Normal(vec));
|
|
}
|
|
vtkm::cont::ArrayHandle<vtkm::Vec3f> fieldArray;
|
|
fieldArray = vtkm::cont::make_ArrayHandle(field, vtkm::CopyFlag::Off);
|
|
FieldType velocities(fieldArray);
|
|
|
|
std::vector<vtkm::Bounds> bounds;
|
|
bounds.push_back(vtkm::Bounds(0, 10, 0, 10, 0, 10));
|
|
bounds.push_back(vtkm::Bounds(-1, 1, -1, 1, -1, 1));
|
|
bounds.push_back(vtkm::Bounds(0, 1, 0, 1, -1, 1));
|
|
|
|
vtkm::Id maxSteps = 1000;
|
|
for (auto& bound : bounds)
|
|
{
|
|
auto dataSets = vtkm::worklet::testing::CreateAllDataSets(bound, dims, false);
|
|
|
|
//Generate three random points.
|
|
std::vector<vtkm::Particle> pts;
|
|
GenerateRandomParticles(pts, 3, bound, 111);
|
|
std::vector<vtkm::Particle> pts2 = pts;
|
|
|
|
vtkm::Id nSeeds = static_cast<vtkm::Id>(pts.size());
|
|
std::vector<vtkm::Id> stepsTaken = { 10, 20, 600 };
|
|
for (std::size_t i = 0; i < stepsTaken.size(); i++)
|
|
pts2[i].NumSteps = stepsTaken[i];
|
|
|
|
for (auto& ds : dataSets)
|
|
{
|
|
GridEvalType eval(ds.GetCoordinateSystem(), ds.GetCellSet(), velocities);
|
|
Stepper rk4(eval, stepSize);
|
|
|
|
//Do 4 tests on each dataset.
|
|
//Particle advection worklet with and without steps taken.
|
|
//Streamline worklet with and without steps taken.
|
|
for (int i = 0; i < 4; i++)
|
|
{
|
|
if (i < 2)
|
|
{
|
|
vtkm::worklet::ParticleAdvection pa;
|
|
vtkm::worklet::ParticleAdvectionResult<vtkm::Particle> res;
|
|
if (i == 0)
|
|
{
|
|
auto seeds = vtkm::cont::make_ArrayHandle(pts, vtkm::CopyFlag::On);
|
|
res = pa.Run(rk4, seeds, maxSteps);
|
|
}
|
|
else
|
|
{
|
|
auto seeds = vtkm::cont::make_ArrayHandle(pts2, vtkm::CopyFlag::On);
|
|
res = pa.Run(rk4, seeds, maxSteps);
|
|
}
|
|
ValidateParticleAdvectionResult(res, nSeeds, maxSteps);
|
|
}
|
|
else
|
|
{
|
|
vtkm::worklet::Streamline s;
|
|
vtkm::worklet::StreamlineResult<vtkm::Particle> res;
|
|
if (i == 2)
|
|
{
|
|
auto seeds = vtkm::cont::make_ArrayHandle(pts, vtkm::CopyFlag::On);
|
|
res = s.Run(rk4, seeds, maxSteps);
|
|
}
|
|
else
|
|
{
|
|
auto seeds = vtkm::cont::make_ArrayHandle(pts2, vtkm::CopyFlag::On);
|
|
res = s.Run(rk4, seeds, maxSteps);
|
|
}
|
|
ValidateStreamlineResult(res, nSeeds, maxSteps);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void TestParticleStatus()
|
|
{
|
|
using FieldHandle = vtkm::cont::ArrayHandle<vtkm::Vec3f>;
|
|
|
|
vtkm::Bounds bounds(0, 1, 0, 1, 0, 1);
|
|
const vtkm::Id3 dims(5, 5, 5);
|
|
vtkm::Id nElements = dims[0] * dims[1] * dims[2];
|
|
|
|
FieldHandle fieldArray;
|
|
CreateConstantVectorField(nElements, vtkm::Vec3f(1, 0, 0), fieldArray);
|
|
|
|
auto dataSets = vtkm::worklet::testing::CreateAllDataSets(bounds, dims, false);
|
|
for (auto& ds : dataSets)
|
|
{
|
|
using FieldType = vtkm::worklet::particleadvection::VelocityField<FieldHandle>;
|
|
using GridEvalType = vtkm::worklet::particleadvection::GridEvaluator<FieldType>;
|
|
using RK4Type = vtkm::worklet::particleadvection::RK4Integrator<GridEvalType>;
|
|
using Stepper = vtkm::worklet::particleadvection::Stepper<RK4Type, GridEvalType>;
|
|
|
|
vtkm::Id maxSteps = 1000;
|
|
vtkm::FloatDefault stepSize = 0.01f;
|
|
|
|
FieldType velocities(fieldArray);
|
|
|
|
GridEvalType eval(ds, velocities);
|
|
Stepper rk4(eval, stepSize);
|
|
|
|
vtkm::worklet::ParticleAdvection pa;
|
|
std::vector<vtkm::Particle> pts;
|
|
pts.push_back(vtkm::Particle(vtkm::Vec3f(.5, .5, .5), 0));
|
|
pts.push_back(vtkm::Particle(vtkm::Vec3f(-1, -1, -1), 1));
|
|
auto seedsArray = vtkm::cont::make_ArrayHandle(pts, vtkm::CopyFlag::On);
|
|
pa.Run(rk4, seedsArray, maxSteps);
|
|
auto portal = seedsArray.ReadPortal();
|
|
|
|
bool tookStep0 = portal.Get(0).Status.CheckTookAnySteps();
|
|
bool tookStep1 = portal.Get(1).Status.CheckTookAnySteps();
|
|
VTKM_TEST_ASSERT(tookStep0 == true, "Particle failed to take any steps");
|
|
VTKM_TEST_ASSERT(tookStep1 == false, "Particle took a step when it should not have.");
|
|
}
|
|
}
|
|
|
|
void TestWorkletsBasic()
|
|
{
|
|
using FieldHandle = vtkm::cont::ArrayHandle<vtkm::Vec3f>;
|
|
using FieldType = vtkm::worklet::particleadvection::VelocityField<FieldHandle>;
|
|
using GridEvalType = vtkm::worklet::particleadvection::GridEvaluator<FieldType>;
|
|
using RK4Type = vtkm::worklet::particleadvection::RK4Integrator<GridEvalType>;
|
|
using Stepper = vtkm::worklet::particleadvection::Stepper<RK4Type, GridEvalType>;
|
|
vtkm::FloatDefault stepSize = 0.01f;
|
|
|
|
const vtkm::Id3 dims(5, 5, 5);
|
|
vtkm::Id nElements = dims[0] * dims[1] * dims[2] * 3;
|
|
|
|
std::vector<vtkm::Vec3f> field;
|
|
vtkm::Vec3f vecDir(1, 0, 0);
|
|
for (vtkm::Id i = 0; i < nElements; i++)
|
|
field.push_back(vtkm::Normal(vecDir));
|
|
|
|
vtkm::cont::ArrayHandle<vtkm::Vec3f> fieldArray;
|
|
fieldArray = vtkm::cont::make_ArrayHandle(field, vtkm::CopyFlag::Off);
|
|
FieldType velocities(fieldArray);
|
|
|
|
vtkm::Bounds bounds(0, 1, 0, 1, 0, 1);
|
|
|
|
auto dataSets = vtkm::worklet::testing::CreateAllDataSets(bounds, dims, false);
|
|
for (auto& ds : dataSets)
|
|
{
|
|
GridEvalType eval(ds, velocities);
|
|
Stepper rk4(eval, stepSize);
|
|
|
|
vtkm::Id maxSteps = 83;
|
|
std::vector<std::string> workletTypes = { "particleAdvection", "streamline" };
|
|
vtkm::FloatDefault endT = stepSize * static_cast<vtkm::FloatDefault>(maxSteps);
|
|
|
|
for (auto w : workletTypes)
|
|
{
|
|
std::vector<vtkm::Particle> particles;
|
|
std::vector<vtkm::Vec3f> pts, samplePts, endPts;
|
|
vtkm::FloatDefault X = static_cast<vtkm::FloatDefault>(.1);
|
|
vtkm::FloatDefault Y = static_cast<vtkm::FloatDefault>(.1);
|
|
vtkm::FloatDefault Z = static_cast<vtkm::FloatDefault>(.1);
|
|
|
|
for (int i = 0; i < 8; i++)
|
|
{
|
|
pts.push_back(vtkm::Vec3f(X, Y, Z));
|
|
Y += static_cast<vtkm::FloatDefault>(.1);
|
|
}
|
|
|
|
vtkm::Id id = 0;
|
|
for (std::size_t i = 0; i < pts.size(); i++, id++)
|
|
{
|
|
vtkm::Vec3f p = pts[i];
|
|
particles.push_back(vtkm::Particle(p, id));
|
|
samplePts.push_back(p);
|
|
for (vtkm::Id j = 0; j < maxSteps; j++)
|
|
{
|
|
p = p + vecDir * stepSize;
|
|
samplePts.push_back(p);
|
|
}
|
|
endPts.push_back(p);
|
|
}
|
|
|
|
auto seedsArray = vtkm::cont::make_ArrayHandle(particles, vtkm::CopyFlag::On);
|
|
|
|
if (w == "particleAdvection")
|
|
{
|
|
vtkm::worklet::ParticleAdvection pa;
|
|
vtkm::worklet::ParticleAdvectionResult<vtkm::Particle> res;
|
|
|
|
res = pa.Run(rk4, seedsArray, maxSteps);
|
|
|
|
vtkm::Id numRequiredPoints = static_cast<vtkm::Id>(endPts.size());
|
|
VTKM_TEST_ASSERT(res.Particles.GetNumberOfValues() == numRequiredPoints,
|
|
"Wrong number of points in particle advection result.");
|
|
auto portal = res.Particles.ReadPortal();
|
|
for (vtkm::Id i = 0; i < res.Particles.GetNumberOfValues(); i++)
|
|
{
|
|
VTKM_TEST_ASSERT(portal.Get(i).Pos == endPts[static_cast<std::size_t>(i)],
|
|
"Particle advection point is wrong");
|
|
VTKM_TEST_ASSERT(portal.Get(i).NumSteps == maxSteps,
|
|
"Particle advection NumSteps is wrong");
|
|
VTKM_TEST_ASSERT(vtkm::Abs(portal.Get(i).Time - endT) < stepSize / 100,
|
|
"Particle advection Time is wrong");
|
|
VTKM_TEST_ASSERT(portal.Get(i).Status.CheckOk(), "Particle advection Status is wrong");
|
|
VTKM_TEST_ASSERT(portal.Get(i).Status.CheckTerminate(),
|
|
"Particle advection particle did not terminate");
|
|
}
|
|
}
|
|
else if (w == "streamline")
|
|
{
|
|
vtkm::worklet::Streamline s;
|
|
vtkm::worklet::StreamlineResult<vtkm::Particle> res;
|
|
|
|
res = s.Run(rk4, seedsArray, maxSteps);
|
|
|
|
vtkm::Id numRequiredPoints = static_cast<vtkm::Id>(samplePts.size());
|
|
VTKM_TEST_ASSERT(res.Positions.GetNumberOfValues() == numRequiredPoints,
|
|
"Wrong number of points in streamline result.");
|
|
|
|
//Make sure all the points match.
|
|
auto parPortal = res.Particles.ReadPortal();
|
|
for (vtkm::Id i = 0; i < res.Particles.GetNumberOfValues(); i++)
|
|
{
|
|
VTKM_TEST_ASSERT(parPortal.Get(i).Pos == endPts[static_cast<std::size_t>(i)],
|
|
"Streamline end point is wrong");
|
|
VTKM_TEST_ASSERT(parPortal.Get(i).NumSteps == maxSteps, "Streamline NumSteps is wrong");
|
|
VTKM_TEST_ASSERT(vtkm::Abs(parPortal.Get(i).Time - endT) < stepSize / 100,
|
|
"Streamline Time is wrong");
|
|
VTKM_TEST_ASSERT(parPortal.Get(i).Status.CheckOk(), "Streamline Status is wrong");
|
|
VTKM_TEST_ASSERT(parPortal.Get(i).Status.CheckTerminate(),
|
|
"Streamline particle did not terminate");
|
|
}
|
|
|
|
auto posPortal = res.Positions.ReadPortal();
|
|
for (vtkm::Id i = 0; i < res.Positions.GetNumberOfValues(); i++)
|
|
VTKM_TEST_ASSERT(posPortal.Get(i) == samplePts[static_cast<std::size_t>(i)],
|
|
"Streamline points do not match");
|
|
|
|
vtkm::Id numCells = res.PolyLines.GetNumberOfCells();
|
|
VTKM_TEST_ASSERT(numCells == static_cast<vtkm::Id>(pts.size()),
|
|
"Wrong number of polylines in streamline");
|
|
for (vtkm::Id i = 0; i < numCells; i++)
|
|
{
|
|
VTKM_TEST_ASSERT(res.PolyLines.GetCellShape(i) == vtkm::CELL_SHAPE_POLY_LINE,
|
|
"Wrong cell type in streamline.");
|
|
VTKM_TEST_ASSERT(res.PolyLines.GetNumberOfPointsInCell(i) ==
|
|
static_cast<vtkm::Id>(maxSteps + 1),
|
|
"Wrong number of points in streamline cell");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
template <class ResultType>
|
|
void ValidateResult(const ResultType& res,
|
|
vtkm::Id maxSteps,
|
|
const std::vector<vtkm::Vec3f>& endPts)
|
|
{
|
|
const vtkm::FloatDefault eps = static_cast<vtkm::FloatDefault>(1e-3);
|
|
vtkm::Id numPts = static_cast<vtkm::Id>(endPts.size());
|
|
|
|
VTKM_TEST_ASSERT(res.Particles.GetNumberOfValues() == numPts,
|
|
"Wrong number of points in particle advection result.");
|
|
|
|
auto portal = res.Particles.ReadPortal();
|
|
for (vtkm::Id i = 0; i < 3; i++)
|
|
{
|
|
vtkm::Vec3f p = portal.Get(i).Pos;
|
|
vtkm::Vec3f e = endPts[static_cast<std::size_t>(i)];
|
|
|
|
VTKM_TEST_ASSERT(vtkm::Magnitude(p - e) <= eps, "Particle advection point is wrong");
|
|
VTKM_TEST_ASSERT(portal.Get(i).NumSteps == maxSteps, "Particle advection NumSteps is wrong");
|
|
VTKM_TEST_ASSERT(portal.Get(i).Status.CheckOk(), "Particle advection Status is wrong");
|
|
VTKM_TEST_ASSERT(portal.Get(i).Status.CheckTerminate(),
|
|
"Particle advection particle did not terminate");
|
|
}
|
|
}
|
|
|
|
|
|
void TestParticleAdvectionFile(const std::string& fname,
|
|
const std::vector<vtkm::Vec3f>& pts,
|
|
vtkm::FloatDefault stepSize,
|
|
vtkm::Id maxSteps,
|
|
const std::vector<vtkm::Vec3f>& endPts)
|
|
{
|
|
|
|
VTKM_LOG_S(vtkm::cont::LogLevel::Info, "Testing particle advection on file " << fname);
|
|
vtkm::io::VTKDataSetReader reader(fname);
|
|
vtkm::cont::DataSet ds;
|
|
try
|
|
{
|
|
ds = reader.ReadDataSet();
|
|
}
|
|
catch (vtkm::io::ErrorIO& e)
|
|
{
|
|
std::string message("Error reading: ");
|
|
message += fname;
|
|
message += ", ";
|
|
message += e.GetMessage();
|
|
|
|
VTKM_TEST_FAIL(message.c_str());
|
|
}
|
|
|
|
using FieldHandle = vtkm::cont::ArrayHandle<vtkm::Vec3f>;
|
|
using FieldType = vtkm::worklet::particleadvection::VelocityField<FieldHandle>;
|
|
using GridEvalType = vtkm::worklet::particleadvection::GridEvaluator<FieldType>;
|
|
using RK4Type = vtkm::worklet::particleadvection::RK4Integrator<GridEvalType>;
|
|
using Stepper = vtkm::worklet::particleadvection::Stepper<RK4Type, GridEvalType>;
|
|
|
|
VTKM_TEST_ASSERT(ds.HasField("vec"), "Data set missing a field named 'vec'");
|
|
vtkm::cont::Field& field = ds.GetField("vec");
|
|
auto fieldData = field.GetData();
|
|
|
|
FieldHandle fieldArray;
|
|
|
|
// Get fieldData (from file) into an ArrayHandle of type vtkm::Vec3f
|
|
// If types match, do a simple cast.
|
|
// If not, need to copy it into the appropriate type.
|
|
if (fieldData.IsType<FieldHandle>())
|
|
fieldArray = fieldData.AsArrayHandle<FieldHandle>();
|
|
else
|
|
vtkm::cont::ArrayCopy(fieldData, fieldArray);
|
|
|
|
FieldType velocities(fieldArray);
|
|
GridEvalType eval(ds.GetCoordinateSystem(), ds.GetCellSet(), velocities);
|
|
Stepper rk4(eval, stepSize);
|
|
|
|
for (int i = 0; i < 2; i++)
|
|
{
|
|
std::vector<vtkm::Particle> seeds;
|
|
for (size_t j = 0; j < pts.size(); j++)
|
|
seeds.push_back(vtkm::Particle(pts[j], static_cast<vtkm::Id>(j)));
|
|
auto seedArray = vtkm::cont::make_ArrayHandle(seeds, vtkm::CopyFlag::Off);
|
|
|
|
if (i == 0)
|
|
{
|
|
vtkm::worklet::ParticleAdvection pa;
|
|
vtkm::worklet::ParticleAdvectionResult<vtkm::Particle> res;
|
|
|
|
res = pa.Run(rk4, seedArray, maxSteps);
|
|
ValidateResult(res, maxSteps, endPts);
|
|
}
|
|
else if (i == 1)
|
|
{
|
|
vtkm::worklet::Streamline s;
|
|
vtkm::worklet::StreamlineResult<vtkm::Particle> res;
|
|
|
|
res = s.Run(rk4, seedArray, maxSteps);
|
|
ValidateResult(res, maxSteps, endPts);
|
|
}
|
|
}
|
|
}
|
|
|
|
void TestParticleAdvection()
|
|
{
|
|
TestIntegrators();
|
|
TestEvaluators();
|
|
TestGhostCellEvaluators();
|
|
|
|
TestParticleStatus();
|
|
TestWorkletsBasic();
|
|
TestParticleWorkletsWithDataSetTypes();
|
|
|
|
//Fusion test.
|
|
std::vector<vtkm::Vec3f> fusionPts, fusionEndPts;
|
|
fusionPts.push_back(vtkm::Vec3f(0.8f, 0.6f, 0.6f));
|
|
fusionPts.push_back(vtkm::Vec3f(0.8f, 0.8f, 0.6f));
|
|
fusionPts.push_back(vtkm::Vec3f(0.8f, 0.8f, 0.3f));
|
|
//End point values were generated in VisIt.
|
|
fusionEndPts.push_back(vtkm::Vec3f(0.5335789918f, 0.87112802267f, 0.6723330020f));
|
|
fusionEndPts.push_back(vtkm::Vec3f(0.5601879954f, 0.91389900446f, 0.43989110522f));
|
|
fusionEndPts.push_back(vtkm::Vec3f(0.7004770041f, 0.63193398714f, 0.64524400234f));
|
|
vtkm::FloatDefault fusionStep = 0.005f;
|
|
std::string fusionFile = vtkm::cont::testing::Testing::DataPath("rectilinear/fusion.vtk");
|
|
TestParticleAdvectionFile(fusionFile, fusionPts, fusionStep, 1000, fusionEndPts);
|
|
|
|
//Fishtank test.
|
|
std::vector<vtkm::Vec3f> fishPts, fishEndPts;
|
|
fishPts.push_back(vtkm::Vec3f(0.75f, 0.5f, 0.01f));
|
|
fishPts.push_back(vtkm::Vec3f(0.4f, 0.2f, 0.7f));
|
|
fishPts.push_back(vtkm::Vec3f(0.5f, 0.3f, 0.8f));
|
|
//End point values were generated in VisIt.
|
|
fishEndPts.push_back(vtkm::Vec3f(0.7734669447f, 0.4870159328f, 0.8979591727f));
|
|
fishEndPts.push_back(vtkm::Vec3f(0.7257543206f, 0.1277695596f, 0.7468645573f));
|
|
fishEndPts.push_back(vtkm::Vec3f(0.8347796798f, 0.1276152730f, 0.4985143244f));
|
|
|
|
vtkm::FloatDefault fishStep = 0.001f;
|
|
std::string fishFile = vtkm::cont::testing::Testing::DataPath("rectilinear/fishtank.vtk");
|
|
TestParticleAdvectionFile(fishFile, fishPts, fishStep, 100, fishEndPts);
|
|
}
|
|
|
|
int UnitTestParticleAdvection(int argc, char* argv[])
|
|
{
|
|
return vtkm::cont::testing::Testing::Run(TestParticleAdvection, argc, argv);
|
|
}
|