mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-20 02:55:47 +00:00
bddad9b386
Now that the dispatcher does its own TryExecute, filters do not need to do that. This change requires all worklets called by filters to be able to execute without knowing the device a priori.
89 lines
3.2 KiB
C++
89 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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// 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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// Copyright 2014 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2014 UT-Battelle, LLC.
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// Copyright 2014 Los Alamos National Security.
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//
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// Under the terms of Contract DE-NA0003525 with NTESS,
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// the U.S. Government retains certain rights in this software.
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//
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// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
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// Laboratory (LANL), the U.S. Government retains certain rights in
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// this software.
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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/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 Threshold : public vtkm::filter::FilterDataSetWithField<Threshold>
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{
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public:
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VTKM_CONT
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Threshold();
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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> policy);
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private:
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double LowerValue;
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double UpperValue;
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vtkm::worklet::Threshold Worklet;
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};
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template <>
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class FilterTraits<Threshold>
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{ //currently the threshold filter only works on scalar data.
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public:
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using InputFieldTypeList = TypeListTagScalarAll;
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};
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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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