vtk-m/vtkm/filter/MaskPoints.h

65 lines
2.0 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_MaskPoints_h
#define vtk_m_filter_MaskPoints_h
#include <vtkm/filter/CleanGrid.h>
#include <vtkm/filter/FilterDataSet.h>
#include <vtkm/worklet/MaskPoints.h>
namespace vtkm
{
namespace filter
{
/// \brief Subselect points using a stride
///
/// Extract only every Nth point where N is equal to a stride value
class MaskPoints : public vtkm::filter::FilterDataSet<MaskPoints>
{
public:
VTKM_CONT
MaskPoints();
// When CompactPoints is set, instead of copying the points and point fields
// from the input, the filter will create new compact fields without the unused elements
VTKM_CONT
bool GetCompactPoints() const { return this->CompactPoints; }
VTKM_CONT
void SetCompactPoints(bool value) { this->CompactPoints = value; }
VTKM_CONT
vtkm::Id GetStride() const { return this->Stride; }
VTKM_CONT
void SetStride(vtkm::Id stride) { this->Stride = stride; }
template <typename DerivedPolicy>
VTKM_CONT vtkm::cont::DataSet DoExecute(const vtkm::cont::DataSet& input,
vtkm::filter::PolicyBase<DerivedPolicy> policy);
//Map a new field onto the resulting dataset after running the filter
template <typename DerivedPolicy>
VTKM_CONT bool MapFieldOntoOutput(vtkm::cont::DataSet& result,
const vtkm::cont::Field& field,
vtkm::filter::PolicyBase<DerivedPolicy>);
private:
vtkm::Id Stride;
bool CompactPoints;
vtkm::filter::CleanGrid Compactor;
};
}
} // namespace vtkm::filter
#include <vtkm/filter/MaskPoints.hxx>
#endif // vtk_m_filter_MaskPoints_h