mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-20 02:55:47 +00:00
83 lines
2.8 KiB
C++
83 lines
2.8 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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#ifndef vtk_m_filter_Streamline_hxx
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#define vtk_m_filter_Streamline_hxx
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#include <vtkm/filter/Streamline.h>
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#include <vtkm/cont/ArrayCopy.h>
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#include <vtkm/cont/ArrayHandleIndex.h>
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#include <vtkm/cont/ErrorFilterExecution.h>
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#include <vtkm/cont/ParticleArrayCopy.h>
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#include <vtkm/filter/particleadvection/BoundsMap.h>
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#include <vtkm/filter/particleadvection/DataSetIntegrator.h>
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#include <vtkm/filter/particleadvection/ParticleAdvector.h>
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namespace vtkm
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{
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namespace filter
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{
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//-----------------------------------------------------------------------------
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inline VTKM_CONT Streamline::Streamline()
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: vtkm::filter::FilterDataSetWithField<Streamline>()
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, Worklet()
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{
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}
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//-----------------------------------------------------------------------------
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inline VTKM_CONT void Streamline::SetSeeds(vtkm::cont::ArrayHandle<vtkm::Particle>& seeds)
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{
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this->Seeds = seeds;
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}
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//-----------------------------------------------------------------------------
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template <typename DerivedPolicy>
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inline VTKM_CONT vtkm::cont::PartitionedDataSet Streamline::PrepareForExecution(
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const vtkm::cont::PartitionedDataSet& input,
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const vtkm::filter::PolicyBase<DerivedPolicy>&)
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{
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if (this->Seeds.GetNumberOfValues() == 0)
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throw vtkm::cont::ErrorFilterExecution("No seeds provided.");
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std::string activeField = this->GetActiveFieldName();
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vtkm::filter::particleadvection::BoundsMap boundsMap(input);
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using DataSetIntegratorType = vtkm::filter::particleadvection::DataSetIntegrator;
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std::vector<DataSetIntegratorType> dsi;
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for (vtkm::Id i = 0; i < input.GetNumberOfPartitions(); i++)
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{
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vtkm::Id blockId = boundsMap.GetLocalBlockId(i);
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dsi.push_back(DataSetIntegratorType(input.GetPartition(i), blockId, activeField));
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}
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vtkm::filter::particleadvection::StreamlineAlgorithm sa(boundsMap, dsi);
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sa.SetNumberOfSteps(this->NumberOfSteps);
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sa.SetStepSize(this->StepSize);
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sa.SetSeeds(this->Seeds);
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sa.Go();
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vtkm::cont::PartitionedDataSet output = sa.GetOutput();
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return output;
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}
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//-----------------------------------------------------------------------------
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template <typename DerivedPolicy>
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inline VTKM_CONT bool Streamline::MapFieldOntoOutput(vtkm::cont::DataSet&,
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const vtkm::cont::Field&,
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vtkm::filter::PolicyBase<DerivedPolicy>)
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{
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return false;
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}
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}
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} // namespace vtkm::filter
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#endif
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