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https://gitlab.kitware.com/vtk/vtk-m
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c3a3184d51
Sandia National Laboratories recently changed management from the Sandia Corporation to the National Technology & Engineering Solutions of Sandia, LLC (NTESS). The copyright statements need to be updated accordingly.
139 lines
4.4 KiB
C++
139 lines
4.4 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 2014 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2014 UT-Battelle, LLC.
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// Copyright 2014 Los Alamos National Security.
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//
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// Under the terms of Contract DE-NA0003525 with NTESS,
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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/cont/ArrayHandlePermutation.h>
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#include <vtkm/cont/CellSetPermutation.h>
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#include <vtkm/cont/CoordinateSystem.h>
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#include <vtkm/cont/DynamicArrayHandle.h>
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#include <vtkm/cont/DynamicCellSet.h>
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#include <vtkm/worklet/DispatcherMapTopology.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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namespace clipwithfield
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{
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template <typename Device>
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struct PointMapHelper
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{
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PointMapHelper(const vtkm::worklet::Clip& worklet, vtkm::cont::DynamicArrayHandle& output)
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: Worklet(worklet)
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, Output(output)
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{
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}
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template <typename ArrayType>
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void operator()(const ArrayType& array) const
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{
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this->Output = this->Worklet.ProcessPointField(array, Device());
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}
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const vtkm::worklet::Clip& Worklet;
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vtkm::cont::DynamicArrayHandle& Output;
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};
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} // end namespace clipwithfield
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//-----------------------------------------------------------------------------
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inline VTKM_CONT ClipWithField::ClipWithField()
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: vtkm::filter::FilterDataSetWithField<ClipWithField>()
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, ClipValue(0)
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, Worklet()
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{
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}
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//-----------------------------------------------------------------------------
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template <typename T, typename StorageType, typename DerivedPolicy, typename DeviceAdapter>
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inline VTKM_CONT vtkm::filter::Result ClipWithField::DoExecute(
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const vtkm::cont::DataSet& input,
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const vtkm::cont::ArrayHandle<T, StorageType>& field,
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const vtkm::filter::FieldMetadata& fieldMeta,
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const vtkm::filter::PolicyBase<DerivedPolicy>& policy,
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const DeviceAdapter& device)
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{
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using namespace clipwithfield;
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if (fieldMeta.IsPointField() == false)
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{
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//todo: we need to mark this as a failure of input, not a failure
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//of the algorithm
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return vtkm::filter::Result();
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}
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//get the cells and coordinates of the dataset
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const vtkm::cont::DynamicCellSet& cells = input.GetCellSet(this->GetActiveCellSetIndex());
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const vtkm::cont::CoordinateSystem& inputCoords =
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input.GetCoordinateSystem(this->GetActiveCoordinateSystemIndex());
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vtkm::cont::CellSetExplicit<> outputCellSet =
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this->Worklet.Run(vtkm::filter::ApplyPolicy(cells, policy), field, this->ClipValue, device);
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//create the output data
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vtkm::cont::DataSet output;
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output.AddCellSet(outputCellSet);
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// Compute the new boundary points and add them to the output:
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vtkm::cont::DynamicArrayHandle outputCoordsArray;
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PointMapHelper<DeviceAdapter> pointMapper(this->Worklet, outputCoordsArray);
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vtkm::filter::ApplyPolicy(inputCoords, policy).CastAndCall(pointMapper);
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vtkm::cont::CoordinateSystem outputCoords(inputCoords.GetName(), outputCoordsArray);
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output.AddCoordinateSystem(outputCoords);
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vtkm::filter::Result result(output);
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return result;
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}
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//-----------------------------------------------------------------------------
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template <typename T, typename StorageType, typename DerivedPolicy, typename DeviceAdapter>
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inline VTKM_CONT bool ClipWithField::DoMapField(
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vtkm::filter::Result& result,
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const vtkm::cont::ArrayHandle<T, StorageType>& input,
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const vtkm::filter::FieldMetadata& fieldMeta,
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const vtkm::filter::PolicyBase<DerivedPolicy>&,
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const DeviceAdapter& device)
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{
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vtkm::cont::ArrayHandle<T> output;
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if (fieldMeta.IsPointField())
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{
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output = this->Worklet.ProcessPointField(input, device);
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}
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else if (fieldMeta.IsCellField())
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{
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output = this->Worklet.ProcessCellField(input, device);
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}
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else
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{
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return false;
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}
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//use the same meta data as the input so we get the same field name, etc.
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result.GetDataSet().AddField(fieldMeta.AsField(output));
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return true;
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}
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}
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} // end namespace vtkm::filter
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