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108 lines
3.4 KiB
C
108 lines
3.4 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkCoincidentPoints.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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Copyright 2008 Sandia Corporation.
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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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/**
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* @class vtkCoincidentPoints
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* @brief contains an octree of labels
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*
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*
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* This class provides a collection of points that is organized such that
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* each coordinate is stored with a set of point id's of points that are
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* all coincident.
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*/
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#ifndef vtkCoincidentPoints_h
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#define vtkCoincidentPoints_h
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#include "vtkFiltersGeneralModule.h" // For export macro
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#include "vtkObject.h"
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class vtkIdList;
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class vtkPoints;
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class VTKFILTERSGENERAL_EXPORT vtkCoincidentPoints : public vtkObject
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{
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public:
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static vtkCoincidentPoints* New();
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vtkTypeMacro(vtkCoincidentPoints, vtkObject);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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/**
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* Accumulates a set of Ids in a map where the point coordinate
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* is the key. All Ids in a given map entry are thus coincident.
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* @param Id - a unique Id for the given \a point that will be stored in an vtkIdList.
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* @param[in] point - the point coordinate that we will store in the map to test if any other
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* points are coincident with it.
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*/
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void AddPoint(vtkIdType Id, const double point[3]);
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/**
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* Retrieve the list of point Ids that are coincident with the given \a point.
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* @param[in] point - the coordinate of coincident points we want to retrieve.
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*/
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vtkIdList* GetCoincidentPointIds(const double point[3]);
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/**
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* Used to iterate the sets of coincident points within the map.
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* InitTraversal must be called first or nullptr will always be returned.
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*/
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vtkIdList* GetNextCoincidentPointIds();
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/**
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* Initialize iteration to the beginning of the coincident point map.
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*/
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void InitTraversal();
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/**
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* Iterate through all added points and remove any entries that have
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* no coincident points (only a single point Id).
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*/
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void RemoveNonCoincidentPoints();
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/**
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* Clear the maps for reuse. This should be called if the caller
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* might reuse this class (another executive pass for instance).
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*/
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void Clear();
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class implementation;
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implementation* GetImplementation() { return this->Implementation; }
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/**
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* Calculate \a num points, at a regular interval, along a parametric
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* spiral. Note this spiral is only in two dimensions having a constant
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* z value.
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*/
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static void SpiralPoints(vtkIdType num, vtkPoints* offsets);
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protected:
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vtkCoincidentPoints();
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~vtkCoincidentPoints() override;
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private:
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vtkCoincidentPoints(const vtkCoincidentPoints&) = delete;
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void operator=(const vtkCoincidentPoints&) = delete;
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implementation* Implementation;
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friend class implementation;
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};
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#endif // vtkCoincidentPoints_h
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