mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-19 18:45:43 +00:00
86 lines
2.9 KiB
C++
86 lines
2.9 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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//
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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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#ifndef vtk_m_filter_ExtractPoints_h
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#define vtk_m_filter_ExtractPoints_h
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#include <vtkm/cont/ImplicitFunctionHandle.h>
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#include <vtkm/filter/CleanGrid.h>
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#include <vtkm/filter/FilterDataSet.h>
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#include <vtkm/worklet/ExtractPoints.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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/// @brief Extract only points from a geometry using an implicit function
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///
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///
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/// Extract only the points that are either inside or outside of a
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/// VTK-m implicit function. Examples include planes, spheres, boxes,
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/// etc.
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/// Note that while any geometry type can be provided as input, the output is
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/// represented by an explicit representation of points using
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/// vtkm::cont::CellSetSingleType
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class ExtractPoints : public vtkm::filter::FilterDataSet<ExtractPoints>
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{
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public:
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VTKM_CONT
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ExtractPoints();
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/// When CompactPoints is set, instead of copying the points and point fields
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/// from the input, the filter will create new compact fields without the unused elements
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VTKM_CONT
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bool GetCompactPoints() const { return this->CompactPoints; }
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VTKM_CONT
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void SetCompactPoints(bool value) { this->CompactPoints = value; }
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/// Set the volume of interest to extract
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void SetImplicitFunction(const vtkm::cont::ImplicitFunctionHandle& func)
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{
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this->Function = func;
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}
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const vtkm::cont::ImplicitFunctionHandle& GetImplicitFunction() const { return this->Function; }
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VTKM_CONT
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bool GetExtractInside() { return this->ExtractInside; }
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VTKM_CONT
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void SetExtractInside(bool value) { this->ExtractInside = value; }
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VTKM_CONT
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void ExtractInsideOn() { this->ExtractInside = true; }
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VTKM_CONT
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void ExtractInsideOff() { this->ExtractInside = false; }
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template <typename DerivedPolicy>
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vtkm::cont::DataSet DoExecute(const vtkm::cont::DataSet& input,
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vtkm::filter::PolicyBase<DerivedPolicy> policy);
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//Map a new field onto the resulting dataset after running the filter
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template <typename T, typename StorageType, typename DerivedPolicy>
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bool DoMapField(vtkm::cont::DataSet& 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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vtkm::filter::PolicyBase<DerivedPolicy> policy);
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private:
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bool ExtractInside;
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vtkm::cont::ImplicitFunctionHandle Function;
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bool CompactPoints;
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vtkm::filter::CleanGrid Compactor;
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};
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}
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} // namespace vtkm::filter
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#include <vtkm/filter/ExtractPoints.hxx>
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#endif // vtk_m_filter_ExtractPoints_h
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