mirror of
https://gitlab.kitware.com/vtk/vtk-m
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79 lines
2.5 KiB
C++
79 lines
2.5 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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//
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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_WarpVector_h
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#define vtk_m_filter_WarpVector_h
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#include <vtkm/filter/FilterField.h>
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#include <vtkm/worklet/WarpVector.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 Modify points by moving points along a vector multiplied by
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/// the scale factor
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///
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/// A filter that modifies point coordinates by moving points along a vector
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/// multiplied by a scale factor. It's a VTK-m version of the vtkWarpVector in VTK.
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/// Useful for showing flow profiles or mechanical deformation.
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/// This worklet does not modify the input points but generate new point
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/// coordinate instance that has been warped.
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class WarpVector : public vtkm::filter::FilterField<WarpVector>
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{
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public:
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using SupportedTypes = vtkm::TypeListFieldVec3;
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using AdditionalFieldStorage =
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vtkm::List<vtkm::cont::ArrayHandleConstant<vtkm::Vec3f_32>::StorageTag,
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vtkm::cont::ArrayHandleConstant<vtkm::Vec3f_64>::StorageTag>;
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VTKM_CONT
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WarpVector(vtkm::FloatDefault scale);
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//@{
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/// Choose the vector field to operate on. In the warp op A + B *scale, B is
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/// the vector field
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VTKM_CONT
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void SetVectorField(
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const std::string& name,
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vtkm::cont::Field::Association association = vtkm::cont::Field::Association::ANY)
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{
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this->VectorFieldName = name;
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this->VectorFieldAssociation = association;
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}
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VTKM_CONT const std::string& GetVectorFieldName() const { return this->VectorFieldName; }
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VTKM_CONT vtkm::cont::Field::Association GetVectorFieldAssociation() const
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{
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return this->VectorFieldAssociation;
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}
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//@}
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template <typename T, typename StorageType, typename DerivedPolicy>
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VTKM_CONT vtkm::cont::DataSet DoExecute(
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const vtkm::cont::DataSet& input,
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const vtkm::cont::ArrayHandle<vtkm::Vec<T, 3>, StorageType>& field,
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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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vtkm::worklet::WarpVector Worklet;
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std::string VectorFieldName;
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vtkm::cont::Field::Association VectorFieldAssociation;
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vtkm::FloatDefault Scale;
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};
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}
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}
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#include <vtkm/filter/WarpVector.hxx>
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#endif // vtk_m_filter_WarpVector_h
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