mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-19 18:45:43 +00:00
cd302effb3
A new header named TypeList.h and the type lists have been redefined in this new file. All the types have been renamed from `TypeListTag*` to `TypeList*`. TypeListTag.h has been gutted to provide deprecated versions of the old type list names. There were also some other type lists that were changed from using the old `ListTagBase` to the new `List`.
95 lines
3.2 KiB
C++
95 lines
3.2 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_Threshold_h
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#define vtk_m_filter_Threshold_h
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#include <vtkm/filter/vtkm_filter_export.h>
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#include <vtkm/filter/FilterDataSetWithField.h>
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#include <vtkm/worklet/Threshold.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 Extracts cells where scalar value in cell satisfies threshold criterion
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///
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/// Extracts all cells from any dataset type that
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/// satisfy a threshold criterion. A cell satisfies the criterion if the
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/// scalar value of every point or cell satisfies the criterion. The
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/// criterion takes the form of between two values. The output of this
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/// filter is an permutation of the input dataset.
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///
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/// You can threshold either on point or cell fields
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class VTKM_ALWAYS_EXPORT Threshold : public vtkm::filter::FilterDataSetWithField<Threshold>
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{
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public:
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using SupportedTypes = vtkm::TypeListScalarAll;
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VTKM_CONT
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void SetLowerThreshold(vtkm::Float64 value) { this->LowerValue = value; }
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VTKM_CONT
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void SetUpperThreshold(vtkm::Float64 value) { this->UpperValue = value; }
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VTKM_CONT
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vtkm::Float64 GetLowerThreshold() const { return this->LowerValue; }
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VTKM_CONT
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vtkm::Float64 GetUpperThreshold() const { return this->UpperValue; }
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template <typename T, typename StorageType, typename DerivedPolicy>
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VTKM_CONT vtkm::cont::DataSet DoExecute(const vtkm::cont::DataSet& input,
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const vtkm::cont::ArrayHandle<T, StorageType>& field,
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const vtkm::filter::FieldMetadata& fieldMeta,
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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
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template <typename T, typename StorageType, typename DerivedPolicy>
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VTKM_CONT 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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if (fieldMeta.IsPointField())
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{
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//we copy the input handle to the result dataset, reusing the metadata
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result.AddField(fieldMeta.AsField(input));
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return true;
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}
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else if (fieldMeta.IsCellField())
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{
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vtkm::cont::ArrayHandle<T> out = this->Worklet.ProcessCellField(input);
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result.AddField(fieldMeta.AsField(out));
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return true;
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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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}
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private:
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double LowerValue = 0;
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double UpperValue = 0;
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vtkm::worklet::Threshold Worklet;
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};
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#ifndef vtkm_filter_Threshold_cxx
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VTKM_FILTER_EXPORT_EXECUTE_METHOD(Threshold);
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#endif
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}
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} // namespace vtkm::filter
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#include <vtkm/filter/Threshold.hxx>
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#endif // vtk_m_filter_Threshold_h
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