de4e840eae
Filters now support executing on a dataset to produce a result dataset with automatic mapping of fields to the output dataset. Fields to map can be selected using `vtkm::filter::FieldSelection` class, which provides constructors to map all or no fields, along with a selection of fields. This updates all tests to use the new filter API.
134 lines
4.5 KiB
C++
134 lines
4.5 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_FieldFilter_h
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#define vtk_m_filter_FieldFilter_h
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#include <vtkm/cont/CoordinateSystem.h>
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#include <vtkm/cont/DataSet.h>
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#include <vtkm/cont/Field.h>
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#include <vtkm/cont/MultiBlock.h>
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#include <vtkm/cont/RuntimeDeviceTracker.h>
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#include <vtkm/filter/Filter.h>
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#include <vtkm/filter/PolicyBase.h>
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#include <vtkm/filter/Result.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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template <class Derived>
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class FilterField : public vtkm::filter::Filter<FilterField<Derived>>
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{
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public:
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VTKM_CONT
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FilterField();
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VTKM_CONT
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~FilterField();
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VTKM_CONT
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void SetOutputFieldName(const std::string& name) { this->OutputFieldName = name; }
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VTKM_CONT
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const std::string& GetOutputFieldName() const { return this->OutputFieldName; }
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//@{
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/// Choose the field to operate on. Note, if
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/// `this->UseCoordinateSystemAsField` is true, then the active field is not used.
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VTKM_CONT
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void SetActiveField(const std::string& name,
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vtkm::cont::Field::AssociationEnum association = vtkm::cont::Field::ASSOC_ANY)
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{
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this->ActiveFieldName = name;
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this->ActiveFieldAssociation = association;
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}
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VTKM_CONT const std::string& GetActiveFieldName() const { return this->ActiveFieldName; }
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VTKM_CONT vtkm::cont::Field::AssociationEnum GetActiveFieldAssociation() const
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{
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return this->ActiveFieldAssociation;
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}
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//@}
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//@{
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/// To simply use the active coordinate system as the field to operate on, set
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/// UseCoordinateSystemAsField to true.
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VTKM_CONT
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void SetUseCoordinateSystemAsField(bool val) { this->UseCoordinateSystemAsField = val; }
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VTKM_CONT
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bool GetUseCoordinateSystemAsField() const { return this->UseCoordinateSystemAsField; }
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//@}
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//@{
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/// Select the coordinate system index to make active to use as the field when
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/// UseCoordinateSystemAsField is true.
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VTKM_CONT
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void SetActiveCoordinateSystem(vtkm::Id index) { this->CoordinateSystemIndex = index; }
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VTKM_CONT
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vtkm::Id GetActiveCoordinateSystemIndex() const { return this->CoordinateSystemIndex; }
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//@}
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/// These are provided to satisfy the Filter API requirements.
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/// They simply pass the field to the result dataset as there's no mapping
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/// needed for FilterField.
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VTKM_CONT
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bool MapFieldOntoOutput(Result& result, const vtkm::cont::Field& field);
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template <typename DerivedPolicy>
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VTKM_CONT bool MapFieldOntoOutput(Result& result,
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const vtkm::cont::Field& field,
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const vtkm::filter::PolicyBase<DerivedPolicy>& policy);
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private:
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template <typename DerivedPolicy>
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VTKM_CONT Result PrepareForExecution(const vtkm::cont::DataSet& input,
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const vtkm::filter::PolicyBase<DerivedPolicy>& policy);
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template <typename DerivedPolicy>
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VTKM_CONT Result PrepareForExecution(const vtkm::cont::DataSet& input,
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const vtkm::cont::Field& field,
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const vtkm::filter::PolicyBase<DerivedPolicy>& policy);
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template <typename DerivedPolicy>
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VTKM_CONT Result PrepareForExecution(const vtkm::cont::DataSet& input,
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const vtkm::cont::CoordinateSystem& field,
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const vtkm::filter::PolicyBase<DerivedPolicy>& policy);
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std::string OutputFieldName;
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vtkm::Id CoordinateSystemIndex;
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std::string ActiveFieldName;
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vtkm::cont::Field::AssociationEnum ActiveFieldAssociation;
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bool UseCoordinateSystemAsField;
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friend class vtkm::filter::Filter<FilterField<Derived>>;
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};
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}
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} // namespace vtkm::filter
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#include <vtkm/filter/FilterField.hxx>
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#endif // vtk_m_filter_FieldFilter_h
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