vtk-m/vtkm/filter/ClipWithField.hxx

60 lines
2.1 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.
//============================================================================
#ifndef vtk_m_filter_ClipWithField_hxx
#define vtk_m_filter_ClipWithField_hxx
#include <vtkm/cont/ArrayHandlePermutation.h>
#include <vtkm/cont/CellSetPermutation.h>
#include <vtkm/cont/CoordinateSystem.h>
#include <vtkm/cont/DynamicCellSet.h>
#include <vtkm/cont/ErrorFilterExecution.h>
namespace vtkm
{
namespace filter
{
//-----------------------------------------------------------------------------
template <typename T, typename StorageType, typename DerivedPolicy>
inline VTKM_CONT vtkm::cont::DataSet ClipWithField::DoExecute(
const vtkm::cont::DataSet& input,
const vtkm::cont::ArrayHandle<T, StorageType>& field,
const vtkm::filter::FieldMetadata& fieldMeta,
vtkm::filter::PolicyBase<DerivedPolicy> policy)
{
if (fieldMeta.IsPointField() == false)
{
throw vtkm::cont::ErrorFilterExecution("Point field expected.");
}
//get the cells and coordinates of the dataset
const vtkm::cont::DynamicCellSet& cells = input.GetCellSet();
const vtkm::cont::CoordinateSystem& inputCoords =
input.GetCoordinateSystem(this->GetActiveCoordinateSystemIndex());
vtkm::cont::CellSetExplicit<> outputCellSet = this->Worklet.Run(
vtkm::filter::ApplyPolicyCellSet(cells, policy), field, this->ClipValue, this->Invert);
//create the output data
vtkm::cont::DataSet output;
output.SetCellSet(outputCellSet);
// Compute the new boundary points and add them to the output:
auto outputCoordsArray = this->Worklet.ProcessPointField(inputCoords.GetData());
vtkm::cont::CoordinateSystem outputCoords(inputCoords.GetName(), outputCoordsArray);
output.AddCoordinateSystem(outputCoords);
return output;
}
}
} // end namespace vtkm::filter
#endif