vtk-m/vtkm/filter/Tetrahedralize.hxx
2017-03-23 11:58:00 -06:00

97 lines
3.3 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 vtkm {
namespace filter {
//-----------------------------------------------------------------------------
inline VTKM_CONT
Tetrahedralize::Tetrahedralize():
vtkm::filter::FilterDataSet<Tetrahedralize>()
{
}
//-----------------------------------------------------------------------------
template<typename DerivedPolicy,
typename DeviceAdapter>
inline VTKM_CONT
vtkm::filter::ResultDataSet Tetrahedralize::DoExecute(
const vtkm::cont::DataSet& input,
const vtkm::filter::PolicyBase<DerivedPolicy>& policy,
const DeviceAdapter& device)
{
typedef vtkm::cont::CellSetStructured<3> CellSetStructuredType;
typedef vtkm::cont::CellSetExplicit<> CellSetExplicitType;
const vtkm::cont::DynamicCellSet& cells =
input.GetCellSet(this->GetActiveCellSetIndex());
vtkm::cont::CellSetSingleType<> outCellSet;
vtkm::worklet::Tetrahedralize<DeviceAdapter> worklet;
if (cells.IsType<CellSetStructuredType>())
{
outCellSet = worklet.Run(cells.Cast<CellSetStructuredType>());
}
else
{
outCellSet = worklet.Run(cells.Cast<CellSetExplicitType>());
}
// create the output dataset
vtkm::cont::DataSet output;
output.AddCellSet(outCellSet);
output.AddCoordinateSystem(input.GetCoordinateSystem(this->GetActiveCoordinateSystemIndex()) );
return vtkm::filter::ResultDataSet(output);
}
//-----------------------------------------------------------------------------
template<typename T,
typename StorageType,
typename DerivedPolicy,
typename DeviceAdapter>
inline VTKM_CONT
bool Tetrahedralize::DoMapField(
vtkm::filter::ResultDataSet& result,
const vtkm::cont::ArrayHandle<T, StorageType>& input,
const vtkm::filter::FieldMetadata& fieldMeta,
const vtkm::filter::PolicyBase<DerivedPolicy>& policy,
const DeviceAdapter&)
{
// point data is copied as is because it was not collapsed
if(fieldMeta.IsPointField())
{
result.GetDataSet().AddField(fieldMeta.AsField(input));
return true;
}
// cell data for structured will be ScatterIndex(2) because every cell became two
if(fieldMeta.IsCellField())
{
result.GetDataSet().AddField(fieldMeta.AsField(input));
return true;
}
return false;
}
}
}