mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-20 02:55:47 +00:00
130 lines
4.7 KiB
C++
130 lines
4.7 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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// 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 Sandia Corporation.
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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-AC04-94AL85000 with Sandia Corporation,
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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_ExtractGeometry_h
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#define vtk_m_filter_ExtractGeometry_h
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#include <vtkm/cont/ImplicitFunction.h>
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#include <vtkm/filter/FilterDataSet.h>
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#include <vtkm/worklet/ExtractGeometry.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 a subset of geometry based on an implicit function
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///
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/// Extracts from its input geometry all cells that are either
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/// completely inside or outside of a specified implicit function. Any type of
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/// data can be input to this filter.
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///
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/// To use this filter you must specify an implicit function. You must also
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/// specify whether to extract cells laying inside or outside of the implicit
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/// function. (The inside of an implicit function is the negative values
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/// region.) An option exists to extract cells that are neither inside or
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/// outside (i.e., boundary).
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///
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/// This differs from Clip in that Clip will subdivide boundary cells into new
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/// cells, while this filter will not, producing a more 'crinkly' output.
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///
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class ExtractGeometry : public vtkm::filter::FilterDataSet<ExtractGeometry>
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{
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public:
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VTKM_CONT
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ExtractGeometry();
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// Set the volume of interest to extract
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template <typename ImplicitFunctionType, typename DerivedPolicy>
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void SetImplicitFunction(const std::shared_ptr<ImplicitFunctionType>& func,
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const vtkm::filter::PolicyBase<DerivedPolicy>& policy);
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template <typename ImplicitFunctionType>
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void SetImplicitFunction(const std::shared_ptr<ImplicitFunctionType>& func)
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{
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this->Function = func;
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}
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std::shared_ptr<vtkm::cont::ImplicitFunction> GetImplicitFunction() const
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{
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return this->Function;
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}
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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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VTKM_CONT
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bool GetExtractBoundaryCells() { return this->ExtractBoundaryCells; }
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VTKM_CONT
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void SetExtractBoundaryCells(bool value) { this->ExtractBoundaryCells = value; }
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VTKM_CONT
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void ExtractBoundaryCellsOn() { this->ExtractBoundaryCells = true; }
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VTKM_CONT
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void ExtractBoundaryCellsOff() { this->ExtractBoundaryCells = false; }
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VTKM_CONT
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bool GetExtractOnlyBoundaryCells() { return this->ExtractOnlyBoundaryCells; }
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VTKM_CONT
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void SetExtractOnlyBoundaryCells(bool value) { this->ExtractOnlyBoundaryCells = value; }
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VTKM_CONT
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void ExtractOnlyBoundaryCellsOn() { this->ExtractOnlyBoundaryCells = true; }
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VTKM_CONT
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void ExtractOnlyBoundaryCellsOff() { this->ExtractOnlyBoundaryCells = false; }
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template <typename DerivedPolicy, typename DeviceAdapter>
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vtkm::filter::ResultDataSet DoExecute(const vtkm::cont::DataSet& input,
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const vtkm::filter::PolicyBase<DerivedPolicy>& policy,
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const DeviceAdapter& tag);
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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, typename DeviceAdapter>
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bool DoMapField(vtkm::filter::ResultDataSet& 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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const vtkm::filter::PolicyBase<DerivedPolicy>& policy,
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const DeviceAdapter& tag);
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private:
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bool ExtractInside;
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bool ExtractBoundaryCells;
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bool ExtractOnlyBoundaryCells;
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std::shared_ptr<vtkm::cont::ImplicitFunction> Function;
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vtkm::worklet::ExtractGeometry Worklet;
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};
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template <>
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class FilterTraits<ExtractGeometry>
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{ //currently the ExtractGeometry filter only works on scalar data.
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public:
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typedef TypeListTagScalarAll InputFieldTypeList;
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};
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}
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} // namespace vtkm::filter
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#include <vtkm/filter/ExtractGeometry.hxx>
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#endif // vtk_m_filter_ExtractGeometry_h
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