130 lines
4.3 KiB
C++
130 lines
4.3 KiB
C++
//============================================================================
|
|
// Copyright (c) Kitware, Inc.
|
|
// All rights reserved.
|
|
// See LICENSE.txt for details.
|
|
// This software is distributed WITHOUT ANY WARRANTY; without even
|
|
// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
// PURPOSE. See the above copyright notice for more information.
|
|
//
|
|
// Copyright 2014 Sandia Corporation.
|
|
// Copyright 2014 UT-Battelle, LLC.
|
|
// Copyright 2014 Los Alamos National Security.
|
|
//
|
|
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
|
|
// the U.S. Government retains certain rights in this software.
|
|
//
|
|
// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
|
|
// Laboratory (LANL), the U.S. Government retains certain rights in
|
|
// this software.
|
|
//============================================================================
|
|
|
|
namespace
|
|
{
|
|
class AddPermutationCellSet
|
|
{
|
|
vtkm::cont::DataSet* Output;
|
|
vtkm::cont::ArrayHandle<vtkm::Id>* ValidIds;
|
|
public:
|
|
AddPermutationCellSet(vtkm::cont::DataSet& data,
|
|
vtkm::cont::ArrayHandle<vtkm::Id>& validIds):
|
|
Output(&data),
|
|
ValidIds(&validIds)
|
|
{ }
|
|
|
|
template<typename CellSetType>
|
|
void operator()(const CellSetType& cellset ) const
|
|
{
|
|
typedef vtkm::cont::CellSetPermutation<CellSetType> PermutationCellSetType;
|
|
|
|
PermutationCellSetType permCellSet(*this->ValidIds, cellset,
|
|
cellset.GetName());
|
|
|
|
this->Output->AddCellSet(permCellSet);
|
|
}
|
|
};
|
|
}
|
|
|
|
namespace vtkm {
|
|
namespace filter {
|
|
|
|
//-----------------------------------------------------------------------------
|
|
inline VTKM_CONT
|
|
Mask::Mask():
|
|
vtkm::filter::FilterDataSet<Mask>(),
|
|
Stride(1),
|
|
CompactPoints(false)
|
|
{
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
template<typename DerivedPolicy,
|
|
typename DeviceAdapter>
|
|
inline VTKM_CONT
|
|
vtkm::filter::ResultDataSet Mask::DoExecute(const vtkm::cont::DataSet& input,
|
|
const vtkm::filter::PolicyBase<DerivedPolicy>& policy,
|
|
const DeviceAdapter&)
|
|
{
|
|
const vtkm::cont::DynamicCellSet& cells =
|
|
input.GetCellSet(this->GetActiveCellSetIndex());
|
|
|
|
typedef typename vtkm::cont::DeviceAdapterAlgorithm<DeviceAdapter> DeviceAlgorithm;
|
|
|
|
vtkm::Id numberOfInputCells = cells.GetNumberOfCells();
|
|
vtkm::Id numberOfSampledCells = numberOfInputCells / this->Stride;
|
|
vtkm::cont::ArrayHandleCounting<vtkm::Id> strideArray(0, this->Stride, numberOfSampledCells);
|
|
|
|
DeviceAlgorithm::Copy(strideArray, this->ValidCellIds);
|
|
|
|
// create the output dataset
|
|
vtkm::cont::DataSet output;
|
|
output.AddCoordinateSystem(input.GetCoordinateSystem(this->GetActiveCoordinateSystemIndex()));
|
|
|
|
AddPermutationCellSet addCellSet(output, this->ValidCellIds);
|
|
vtkm::cont::CastAndCall(vtkm::filter::ApplyPolicy(cells, policy),
|
|
addCellSet);
|
|
|
|
return output;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
template<typename T,
|
|
typename StorageType,
|
|
typename DerivedPolicy,
|
|
typename DeviceAdapter>
|
|
inline VTKM_CONT
|
|
bool Mask::DoMapField(vtkm::filter::ResultDataSet& result,
|
|
const vtkm::cont::ArrayHandle<T, StorageType>& input,
|
|
const vtkm::filter::FieldMetadata& fieldMeta,
|
|
const vtkm::filter::PolicyBase<DerivedPolicy>&,
|
|
const DeviceAdapter&)
|
|
{
|
|
// point data is copied as is because it was not collapsed
|
|
if(fieldMeta.IsPointField())
|
|
{
|
|
result.GetDataSet().AddField(fieldMeta.AsField(input));
|
|
return true;
|
|
}
|
|
|
|
if(fieldMeta.IsCellField())
|
|
{
|
|
//todo: We need to generate a new output policy that replaces
|
|
//the original storage tag with a new storage tag where everything is
|
|
//wrapped in ArrayHandlePermutation.
|
|
typedef vtkm::cont::ArrayHandlePermutation<
|
|
vtkm::cont::ArrayHandle<vtkm::Id>,
|
|
vtkm::cont::ArrayHandle<T, StorageType> > PermutationType;
|
|
|
|
PermutationType permutation =
|
|
vtkm::cont::make_ArrayHandlePermutation(this->ValidCellIds, input);
|
|
|
|
result.GetDataSet().AddField( fieldMeta.AsField(permutation) );
|
|
return true;
|
|
}
|
|
|
|
// cell data does not apply
|
|
return false;
|
|
}
|
|
|
|
}
|
|
}
|