mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-19 02:25:42 +00:00
90 lines
2.7 KiB
C++
90 lines
2.7 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_ClipWithImplicitFunction_h
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#define vtk_m_filter_ClipWithImplicitFunction_h
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#include <vtkm/filter/vtkm_filter_export.h>
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#include <vtkm/cont/ImplicitFunctionHandle.h>
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#include <vtkm/filter/FilterDataSet.h>
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#include <vtkm/worklet/Clip.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 Clip a dataset using an implicit function
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///
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/// Clip a dataset using a given implicit function value, such as vtkm::Sphere
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/// or vtkm::Frustum.
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/// The resulting geometry will not be water tight.
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class VTKM_ALWAYS_EXPORT ClipWithImplicitFunction
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: public vtkm::filter::FilterDataSet<ClipWithImplicitFunction>
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{
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public:
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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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void SetInvertClip(bool invert) { this->Invert = invert; }
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const vtkm::cont::ImplicitFunctionHandle& GetImplicitFunction() const { return this->Function; }
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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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//This call is only valid after Execute has been called.
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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>)
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{
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vtkm::cont::ArrayHandle<T> output;
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if (fieldMeta.IsPointField())
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{
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output = this->Worklet.ProcessPointField(input);
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}
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else if (fieldMeta.IsCellField())
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{
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output = this->Worklet.ProcessCellField(input);
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}
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else
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{
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return false;
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}
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//use the same meta data as the input so we get the same field name, etc.
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result.AddField(fieldMeta.AsField(output));
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return true;
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}
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private:
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vtkm::cont::ImplicitFunctionHandle Function;
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vtkm::worklet::Clip Worklet;
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bool Invert = false;
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};
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#ifndef vtkm_filter_ClipWithImplicitFunction_cxx
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VTKM_FILTER_EXPORT_EXECUTE_METHOD(ClipWithImplicitFunction);
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#endif
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}
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} // namespace vtkm::filter
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#include <vtkm/filter/ClipWithImplicitFunction.hxx>
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#endif // vtk_m_filter_ClipWithImplicitFunction_h
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