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https://gitlab.kitware.com/vtk/vtk-m
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50 lines
2.2 KiB
C++
50 lines
2.2 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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//
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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_ImageConnectivity_h
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#define vtk_m_filter_ImageConnectivity_h
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#include <vtkm/filter/FilterField.h>
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#include <vtkm/worklet/connectivities/ImageConnectivity.h>
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/// \brief Groups connected points that have the same field value
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///
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///
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/// The ImageConnectivity filter finds groups of points that have the same field value and are
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/// connected together through their topology. Any point is considered to be connected to its Moore neighborhood:
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/// 8 neighboring points for 2D and 27 neighboring points for 3D. As the name implies, ImageConnectivity only
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/// works on data with a structured cell set. You will get an error if you use any other type of cell set.
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/// The active field passed to the filter must be associated with the points.
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/// The result of the filter is a point field of type vtkm::Id. Each entry in the point field will be a number that
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/// identifies to which region it belongs. By default, this output point field is named “component”.
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namespace vtkm
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{
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namespace filter
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{
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class ImageConnectivity : public vtkm::filter::FilterField<ImageConnectivity>
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{
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public:
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using SupportedTypes = vtkm::TypeListScalarAll;
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VTKM_CONT inline ImageConnectivity() { this->SetOutputFieldName("component"); }
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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& fieldMetadata,
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const vtkm::filter::PolicyBase<DerivedPolicy>&);
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};
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}
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} // namespace vtkm::filter
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#include <vtkm/filter/ImageConnectivity.hxx>
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#endif //vtk_m_filter_ImageConnectivity_h
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