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97 lines
3.1 KiB
C++
97 lines
3.1 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkKdTreePointLocator.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm 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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/**
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* @class vtkKdTreePointLocator
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* @brief class to quickly locate points in 3-space
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*
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* vtkKdTreePointLocator is a wrapper class that derives from
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* vtkAbstractPointLocator and calls the search functions in vtkKdTree.
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*
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* @sa
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* vtkKdTree
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*/
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#ifndef vtkKdTreePointLocator_h
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#define vtkKdTreePointLocator_h
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#include "vtkAbstractPointLocator.h"
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#include "vtkCommonDataModelModule.h" // For export macro
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class vtkIdList;
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class vtkKdTree;
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class VTKCOMMONDATAMODEL_EXPORT vtkKdTreePointLocator : public vtkAbstractPointLocator
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{
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public:
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vtkTypeMacro(vtkKdTreePointLocator, vtkAbstractPointLocator);
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static vtkKdTreePointLocator* New();
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void PrintSelf(ostream& os, vtkIndent indent) override;
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/**
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* Given a position x, return the id of the point closest to it. Alternative
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* method requires separate x-y-z values.
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* These methods are thread safe if BuildLocator() is directly or
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* indirectly called from a single thread first.
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*/
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vtkIdType FindClosestPoint(const double x[3]) override;
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/**
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* Given a position x and a radius r, return the id of the point
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* closest to the point in that radius.
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* dist2 returns the squared distance to the point.
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*/
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vtkIdType FindClosestPointWithinRadius(double radius, const double x[3], double& dist2) override;
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/**
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* Find the closest N points to a position. This returns the closest
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* N points to a position. A faster method could be created that returned
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* N close points to a position, but necessarily the exact N closest.
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* The returned points are sorted from closest to farthest.
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* These methods are thread safe if BuildLocator() is directly or
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* indirectly called from a single thread first.
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*/
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void FindClosestNPoints(int N, const double x[3], vtkIdList* result) override;
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/**
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* Find all points within a specified radius R of position x.
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* The result is not sorted in any specific manner.
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* These methods are thread safe if BuildLocator() is directly or
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* indirectly called from a single thread first.
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*/
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void FindPointsWithinRadius(double R, const double x[3], vtkIdList* result) override;
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//@{
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/**
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* See vtkLocator interface documentation.
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* These methods are not thread safe.
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*/
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void FreeSearchStructure() override;
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void BuildLocator() override;
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void GenerateRepresentation(int level, vtkPolyData* pd) override;
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//@}
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protected:
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vtkKdTreePointLocator();
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~vtkKdTreePointLocator() override;
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vtkKdTree* KdTree;
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private:
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vtkKdTreePointLocator(const vtkKdTreePointLocator&) = delete;
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void operator=(const vtkKdTreePointLocator&) = delete;
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};
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#endif
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