246a58309c
It's a filter that Split sharp manifold edges where the feature angle between the adjacent surfaces are larger than the threshold value. When an edge is split, it would add a new point to the coordinates and update the connectivity of an adjacent surface. Ex. there are two adjacent triangles(0,1,2) and (2,1,3). Edge (1,2) needs to be split. Two new points 4(duplication of point 1) an 5(duplication of point 2) would be added and the later triangle's connectivity would be changed to (5,4,3). By default, all old point's fields would be copied to the new point. Use with caution.
89 lines
3.5 KiB
C++
89 lines
3.5 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_SplitSharpEdges_h
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#define vtk_m_filter_SplitSharpEdges_h
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#include <vtkm/filter/FilterDataSetWithField.h>
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#include <vtkm/worklet/SplitSharpEdges.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 Split sharp manifold edges where the feature angle between the
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/// adjacent surfaces are larger than the threshold value
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///
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/// Split sharp manifold edges where the feature angle between the adjacent
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/// surfaces are larger than the threshold value. When an edge is split, it
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/// would add a new point to the coordinates and update the connectivity of
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/// an adjacent surface.
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/// Ex. there are two adjacent triangles(0,1,2) and (2,1,3). Edge (1,2) needs
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/// to be split. Two new points 4(duplication of point 1) an 5(duplication of point 2)
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/// would be added and the later triangle's connectivity would be changed
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/// to (5,4,3).
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/// By default, all old point's fields would be copied to the new point.
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/// Use with caution.
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class SplitSharpEdges : public vtkm::filter::FilterDataSetWithField<SplitSharpEdges>
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{
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public:
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VTKM_CONT
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SplitSharpEdges();
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VTKM_CONT
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void SetFeatureAngle(vtkm::FloatDefault value) { this->FeatureAngle = value; }
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VTKM_CONT
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vtkm::FloatDefault GetFeatureAngle() const { return this->FeatureAngle; }
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template <typename T, typename StorageType, typename DerivedPolicy, typename DeviceAdapter>
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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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const vtkm::filter::PolicyBase<DerivedPolicy>& policy,
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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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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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const vtkm::filter::PolicyBase<DerivedPolicy>& policy,
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DeviceAdapter tag);
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private:
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vtkm::FloatDefault FeatureAngle;
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vtkm::worklet::SplitSharpEdges Worklet;
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};
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template <>
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class FilterTraits<SplitSharpEdges>
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{ // SplitSharpEdges filter needs cell normals to decide split.
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public:
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using InputFieldTypeList = vtkm::TypeListTagFieldVec3;
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};
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}
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} // namespace vtkm::filter
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#include <vtkm/filter/SplitSharpEdges.hxx>
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#endif // vtk_m_filter_SplitSharpEdges_h
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