Old versions removed. Now AABBBinaryTree has its own folder.
This commit is contained in:
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bcd64129e2
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/****************************************************************************
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* VCGLib o o *
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* Visual and Computer Graphics Library o o *
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* _ O _ *
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* Copyright(C) 2005 \/)\/ *
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* Visual Computing Lab /\/| *
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* ISTI - Italian National Research Council | *
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* \ *
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* All rights reserved. *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
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* for more details. *
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* *
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****************************************************************************/
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/****************************************************************************
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History
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$Log: not supported by cvs2svn $
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Revision 1.2 2005/09/11 11:45:53 m_di_benedetto
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First Commit
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****************************************************************************/
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#ifndef __VCGLIB_AABBBINARYTREE
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#define __VCGLIB_AABBBINARYTREE
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// stl headers
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#include <vector>
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// vcg headers
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#include <vcg/space/point3.h>
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#include <vcg/space/box3.h>
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/***************************************************************************************/
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namespace vcg {
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/*
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Class AABBBinaryTree
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SAMPLE USAGE:
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NOTES:
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*/
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template <class OBJTYPE, class SCALARTYPE, class NODEAUXDATATYPE>
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class AABBBinaryTree {
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public:
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typedef AABBBinaryTree<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE> ClassType;
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typedef OBJTYPE ObjType;
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typedef ObjType * ObjPtr;
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typedef SCALARTYPE ScalarType;
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typedef NODEAUXDATATYPE NodeAuxDataType;
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typedef Point3<ScalarType> CoordType;
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typedef std::vector<ObjPtr> ObjPtrVector;
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typedef typename ObjPtrVector::iterator ObjPtrVectorIterator;
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typedef typename ObjPtrVector::const_iterator ObjPtrVectorConstIterator;
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public:
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class AABBBinaryTreeNode {
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public:
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AABBBinaryTreeNode * parent;
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AABBBinaryTreeNode * children[2];
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CoordType boxCenter;
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CoordType boxHalfDims;
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ObjPtrVectorIterator oBegin;
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ObjPtrVectorIterator oEnd;
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unsigned int numObjects;
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NodeAuxDataType auxData;
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inline AABBBinaryTreeNode(AABBBinaryTreeNode * pParent = 0);
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inline ~AABBBinaryTreeNode(void);
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inline void Clear(void);
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inline bool IsLeaf(void) const;
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};
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typedef AABBBinaryTreeNode NodeType;
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ObjPtrVector pObjects;
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NodeType * pRoot;
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inline AABBBinaryTree(void);
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inline ~AABBBinaryTree(void);
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inline void Clear(void);
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template <class OBJITERATOR, class OBJITERATORPTRFUNCT, class OBJBOXFUNCT, class OBJBARYCENTERFUNCT>
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inline bool Set(const OBJITERATOR & oBegin, const OBJITERATOR & oEnd, OBJITERATORPTRFUNCT & objPtr, OBJBOXFUNCT & objBox, OBJBARYCENTERFUNCT & objBarycenter, const unsigned int maxElemsPerLeaf = 1, const ScalarType & leafBoxMaxVolume = ((ScalarType)0), const bool useVariance = true);
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protected:
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template <class OBJBOXFUNCT, class OBJBARYCENTERFUNCT>
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inline static NodeType * BoundObjects(NodeType * parent, const ObjPtrVectorIterator & oBegin, const ObjPtrVectorIterator & oEnd, const unsigned int size, const unsigned int maxElemsPerLeaf, const ScalarType & leafBoxMaxVolume, const bool useVariance, OBJBOXFUNCT & getBox, OBJBARYCENTERFUNCT & getBarycenter);
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template <class OBJBARYCENTERFUNCT>
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inline static int BalanceMedian(const ObjPtrVectorIterator & oBegin, const ObjPtrVectorIterator & oEnd, const int size, const int splitAxis, OBJBARYCENTERFUNCT & getBarycenter, ObjPtrVectorIterator & medianIter);
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};
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/***************************************************************************************/
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template <class OBJTYPE, class SCALARTYPE, class NODEAUXDATATYPE>
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AABBBinaryTree<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::AABBBinaryTree(void) {
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this->pObjects.clear();
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this->pRoot = 0;
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}
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template <class OBJTYPE, class SCALARTYPE, class NODEAUXDATATYPE>
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AABBBinaryTree<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::~AABBBinaryTree(void) {
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this->pObjects.clear();
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delete this->pRoot;
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}
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template <class OBJTYPE, class SCALARTYPE, class NODEAUXDATATYPE>
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void AABBBinaryTree<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::Clear(void) {
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this->pObjects.clear();
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delete this->pRoot;
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this->pRoot = 0;
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}
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template <class OBJTYPE, class SCALARTYPE, class NODEAUXDATATYPE>
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template <class OBJITERATOR, class OBJITERATORPTRFUNCT, class OBJBOXFUNCT, class OBJBARYCENTERFUNCT>
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bool AABBBinaryTree<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::Set(const OBJITERATOR & oBegin, const OBJITERATOR & oEnd, OBJITERATORPTRFUNCT & objPtr, OBJBOXFUNCT & objBox, OBJBARYCENTERFUNCT & objBarycenter, const unsigned int maxElemsPerLeaf, const ScalarType & leafBoxMaxVolume, const bool useVariance) {
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this->Clear();
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if ((maxElemsPerLeaf == 0) && (leafBoxMaxVolume <= ((ScalarType)0))) {
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return (false);
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}
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const unsigned int size = (unsigned int)std::distance(oBegin, oEnd);
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this->pObjects.reserve(size);
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for (OBJITERATOR oi=oBegin; oi!=oEnd; ++oi) {
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this->pObjects.push_back(objPtr(*oi));
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}
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this->pRoot = ClassType::BoundObjects(0, this->pObjects.begin(), this->pObjects.end(), size, maxElemsPerLeaf, leafBoxMaxVolume, useVariance, objBox, objBarycenter);
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return (this->pRoot != 0);
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}
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template <class OBJTYPE, class SCALARTYPE, class NODEAUXDATATYPE>
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template <class OBJBOXFUNCT, class OBJBARYCENTERFUNCT>
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typename AABBBinaryTree<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::NodeType * AABBBinaryTree<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::BoundObjects(NodeType * parent, const ObjPtrVectorIterator & oBegin, const ObjPtrVectorIterator & oEnd, const unsigned int size, const unsigned int maxElemsPerLeaf, const ScalarType & leafBoxMaxVolume, const bool useVariance, OBJBOXFUNCT & getBox, OBJBARYCENTERFUNCT & getBarycenter) {
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if (size <= 0) {
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return (0);
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}
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NodeType * pNode = new NodeType(parent);
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if (pNode == 0) {
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return (0);
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}
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pNode->children[0] = 0;
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pNode->children[1] = 0;
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pNode->oBegin = oBegin;
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pNode->oEnd = oEnd;
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Box3<ScalarType> bbox;
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bbox.SetNull();
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for (ObjPtrVectorConstIterator oi=pNode->oBegin; oi!=pNode->oEnd; ++oi) {
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const Box3<ScalarType> tbox = getBox(*(*oi));
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bbox.Add(tbox);
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}
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pNode->boxCenter = bbox.Center();
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pNode->boxHalfDims = bbox.Dim() / ((ScalarType)2);
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pNode->numObjects = size;
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const bool bMaxObjectsReached = (((maxElemsPerLeaf > 0) && (size <= maxElemsPerLeaf)) || (size == 1));
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const bool bMaxVolumeReached = ((leafBoxMaxVolume > ((ScalarType)0)) && (bbox.Volume() <= leafBoxMaxVolume));
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const bool isLeaf = bMaxObjectsReached || bMaxVolumeReached;
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if (isLeaf) {
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return (pNode);
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}
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CoordType pSplit;
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if (useVariance) {
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CoordType mean((ScalarType)0, (ScalarType)0, (ScalarType)0);
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CoordType variance((ScalarType)0, (ScalarType)0, (ScalarType)0);
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for (ObjPtrVectorIterator oi=oBegin; oi!=oEnd; ++oi) {
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const CoordType bc = getBarycenter(*(*oi));
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mean += bc;
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variance[0] += bc[0] * bc[0];
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variance[1] += bc[1] * bc[1];
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variance[2] += bc[2] * bc[2];
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}
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variance[0] -= (mean[0] * mean[0]) / ((ScalarType)size);
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variance[1] -= (mean[1] * mean[1]) / ((ScalarType)size);
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variance[2] -= (mean[2] * mean[2]) / ((ScalarType)size);
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pSplit = variance;
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}
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else {
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pSplit = pNode->boxHalfDims;
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}
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ScalarType maxDim = pSplit[0];
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int splitAxis = 0;
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if (maxDim < pSplit[1]) {
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maxDim = pSplit[1];
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splitAxis = 1;
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}
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if (maxDim < pSplit[2]) {
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maxDim = pSplit[2];
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splitAxis = 2;
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}
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ObjPtrVectorIterator median;
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const int lSize = ClassType::BalanceMedian(pNode->oBegin, pNode->oEnd, size, splitAxis, getBarycenter, median);
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const int rSize = size - lSize;
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if (lSize > 0) {
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pNode->children[0] = ClassType::BoundObjects(pNode, pNode->oBegin, median, lSize, maxElemsPerLeaf, leafBoxMaxVolume, useVariance, getBox, getBarycenter);
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if (pNode->children[0] == 0) {
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delete pNode;
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return (0);
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}
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}
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if (rSize > 0) {
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pNode->children[1] = ClassType::BoundObjects(pNode, median, pNode->oEnd, rSize, maxElemsPerLeaf, leafBoxMaxVolume, useVariance, getBox, getBarycenter);
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if (pNode->children[1] == 0) {
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delete pNode;
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return (0);
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}
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}
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return (pNode);
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}
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template <class OBJTYPE, class SCALARTYPE, class NODEAUXDATATYPE>
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template <class OBJBARYCENTERFUNCT>
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int AABBBinaryTree<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::BalanceMedian(const ObjPtrVectorIterator & oBegin, const ObjPtrVectorIterator & oEnd, const int size, const int splitAxis, OBJBARYCENTERFUNCT & getBarycenter, ObjPtrVectorIterator & medianIter) {
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const int iMedian = (size + 1) / 2;
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ObjPtrVectorIterator l, r, i, j;
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ObjPtr iTmp;
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ScalarType pos;
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ObjPtrVectorIterator median = oBegin + iMedian;
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l = oBegin;
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r = oEnd - 1;
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while (l < r) {
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pos = getBarycenter(*(*r))[splitAxis];
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i = l;
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j = r - 1;
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while (true) {
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while ((getBarycenter(*(*i))[splitAxis] <= pos) && (i < r)) {
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i++;
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}
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while ((getBarycenter(*(*j))[splitAxis] > pos) && (j > l)) {
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j--;
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}
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if (i >= j) {
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break;
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}
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iTmp = (*i);
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(*i) = (*j);
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(*j) = iTmp;
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}
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iTmp = (*i);
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(*i) = (*r);
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(*r) = iTmp;
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if (i >= (median)) {
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r = i - 1;
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}
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if (i <= (median)) {
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l = i + 1;
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}
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}
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medianIter = median;
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return (iMedian);
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}
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template <class OBJTYPE, class SCALARTYPE, class NODEAUXDATATYPE>
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AABBBinaryTree<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::AABBBinaryTreeNode::AABBBinaryTreeNode(NodeType * pParent) {
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this->parent = pParent;
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this->children[0] = 0;
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this->children[1] = 0;
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this->numObjects = 0;
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}
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template <class OBJTYPE, class SCALARTYPE, class NODEAUXDATATYPE>
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AABBBinaryTree<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::AABBBinaryTreeNode::~AABBBinaryTreeNode(void) {
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delete this->children[0];
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delete this->children[1];
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}
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template <class OBJTYPE, class SCALARTYPE, class NODEAUXDATATYPE>
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void AABBBinaryTree<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::AABBBinaryTreeNode::Clear(void) {
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delete this->children[0];
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this->children[0] = 0;
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delete this->children[1];
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this->children[1] = 0;
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this->numObjects = 0;
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}
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template <class OBJTYPE, class SCALARTYPE, class NODEAUXDATATYPE>
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bool AABBBinaryTree<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::AABBBinaryTreeNode::IsLeaf(void) const {
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return ((this->children[0] == 0) && (this->children[1] == 0));
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}
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} // end namespace vcg
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#endif // #ifndef __VCGLIB_AABBBINARYTREE
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@ -1,364 +0,0 @@
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/****************************************************************************
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* VCGLib o o *
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* Visual and Computer Graphics Library o o *
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* _ O _ *
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* Copyright(C) 2005 \/)\/ *
|
||||
* Visual Computing Lab /\/| *
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||||
* ISTI - Italian National Research Council | *
|
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* \ *
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* All rights reserved. *
|
||||
* *
|
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* This program is free software; you can redistribute it and/or modify *
|
||||
* it under the terms of the GNU General Public License as published by *
|
||||
* the Free Software Foundation; either version 2 of the License, or *
|
||||
* (at your option) any later version. *
|
||||
* *
|
||||
* This program is distributed in the hope that it will be useful, *
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
|
||||
* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
|
||||
* for more details. *
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* *
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****************************************************************************/
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/****************************************************************************
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History
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||||
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||||
$Log: not supported by cvs2svn $
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Revision 1.3 2005/09/16 10:04:15 m_di_benedetto
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Modified interface, added GetKClosest().
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Revision 1.2 2005/09/11 11:46:21 m_di_benedetto
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First Commit
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****************************************************************************/
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#ifndef __VCGLIB_AABBBINARYTREESEARCH
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#define __VCGLIB_AABBBINARYTREESEARCH
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// stl headers
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#include <limits>
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#include <vector>
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#include <queue>
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#include <deque>
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// vcg headers
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#include <vcg/space/index/aabb_binary_tree.h>
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/***************************************************************************************/
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namespace vcg {
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/*
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Class AABBBinaryTreeSearch
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SAMPLE USAGE:
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NOTES:
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*/
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template <class OBJTYPE, class SCALARTYPE, class NODEUSERATATYPE>
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class AABBBinaryTreeSearch {
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public:
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struct NodeSearchDataType {
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SCALARTYPE minDist;
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};
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struct NodeAuxDataType {
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NodeSearchDataType searchData;
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NODEUSERATATYPE userData;
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};
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typedef AABBBinaryTreeSearch<OBJTYPE, SCALARTYPE, NODEUSERATATYPE> ClassType;
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typedef OBJTYPE ObjType;
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typedef SCALARTYPE ScalarType;
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typedef NODEUSERATATYPE NodeUserDataType;
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typedef AABBBinaryTree<ObjType, ScalarType, NodeAuxDataType> TreeType;
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typedef typename TreeType::ObjPtr ObjPtr;
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typedef typename TreeType::CoordType CoordType;
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inline AABBBinaryTreeSearch(void);
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inline ~AABBBinaryTreeSearch(void);
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inline TreeType & Tree(void);
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inline const TreeType & Tree(void) const;
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template <class OBJITERATOR, class OBJITERATORPTRFUNCT, class OBJBOXFUNCT, class OBJBARYCENTERFUNCT>
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inline bool Set(const OBJITERATOR & oBegin, const OBJITERATOR & oEnd, OBJITERATORPTRFUNCT & objPtr, OBJBOXFUNCT & objBox, OBJBARYCENTERFUNCT & objBarycenter, const unsigned int maxElemsPerLeaf = 1, const ScalarType & leafBoxMaxVolume = ((ScalarType)0), const bool useVariance = true);
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inline void Clear(void);
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template <class OBJPOINTDISTANCEFUNCT>
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ObjPtr GetClosest(OBJPOINTDISTANCEFUNCT & getPointDistance, const CoordType & p, ScalarType & minDist, CoordType & res) const;
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template <class OBJPOINTDISTANCEFUNCT, class OBJPTRCONTAINER, class DISTCONTAINER, class POINTCONTAINER>
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unsigned int GetKClosests(OBJPOINTDISTANCEFUNCT & getPointDistance, const unsigned int k, const CoordType & p, OBJPTRCONTAINER & closestObjs, DISTCONTAINER & distances, POINTCONTAINER & closestPts) const;
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protected:
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struct ClosestObjType {
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ObjPtr pObj;
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ScalarType minDist;
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CoordType closestPt;
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};
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class CompareClosest {
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public:
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bool operator () (const ClosestObjType & a, const ClosestObjType & b) {
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return (a.minDist < b.minDist);
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}
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};
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typedef std::priority_queue<typename ClassType::ClosestObjType, std::deque<typename ClassType::ClosestObjType>, typename ClassType::CompareClosest> PQueueType;
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TreeType tree;
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static inline CoordType Abs(const CoordType & p);
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static inline CoordType LowerClamp(const CoordType & p, const ScalarType & r);
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static inline ScalarType MinimumMaxSquareDistance(const ScalarType & currMinMaxDist, const std::vector<typename TreeType::NodeType *> & n, const CoordType & p);
|
||||
static inline void MinMaxSquareDistance(const typename TreeType::NodeType * n, const CoordType & p, ScalarType & dmin, ScalarType & dmax);
|
||||
|
||||
template <class OBJPOINTDISTANCEFUNCT>
|
||||
static inline void DepthFirstCollect(const CoordType & p, typename TreeType::NodeType * node, ScalarType & mindmax, const unsigned int k, PQueueType & pq, OBJPOINTDISTANCEFUNCT & getPointDistance);
|
||||
|
||||
};
|
||||
|
||||
/***************************************************************************************/
|
||||
|
||||
|
||||
|
||||
template <class OBJTYPE, class SCALARTYPE, class NODEAUXDATATYPE>
|
||||
AABBBinaryTreeSearch<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::AABBBinaryTreeSearch(void) {
|
||||
|
||||
}
|
||||
|
||||
template <class OBJTYPE, class SCALARTYPE, class NODEAUXDATATYPE>
|
||||
AABBBinaryTreeSearch<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::~AABBBinaryTreeSearch(void) {
|
||||
this->Clear();
|
||||
}
|
||||
|
||||
template <class OBJTYPE, class SCALARTYPE, class NODEAUXDATATYPE>
|
||||
typename AABBBinaryTreeSearch<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::TreeType & AABBBinaryTreeSearch<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::Tree(void) {
|
||||
return (this->tree);
|
||||
}
|
||||
|
||||
template <class OBJTYPE, class SCALARTYPE, class NODEAUXDATATYPE>
|
||||
const typename AABBBinaryTreeSearch<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::TreeType & AABBBinaryTreeSearch<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::Tree(void) const {
|
||||
return (this->tree);
|
||||
}
|
||||
|
||||
template <class OBJTYPE, class SCALARTYPE, class NODEAUXDATATYPE>
|
||||
template <class OBJITERATOR, class OBJITERATORPTRFUNCT, class OBJBOXFUNCT, class OBJBARYCENTERFUNCT>
|
||||
bool AABBBinaryTreeSearch<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::Set(const OBJITERATOR & oBegin, const OBJITERATOR & oEnd, OBJITERATORPTRFUNCT & objPtr, OBJBOXFUNCT & objBox, OBJBARYCENTERFUNCT & objBarycenter, const unsigned int maxElemsPerLeaf, const ScalarType & leafBoxMaxVolume, const bool useVariance) {
|
||||
return (this->tree.Set(oBegin, oEnd, objPtr, objBox, objBarycenter, maxElemsPerLeaf, leafBoxMaxVolume, useVariance));
|
||||
}
|
||||
|
||||
template <class OBJTYPE, class SCALARTYPE, class NODEAUXDATATYPE>
|
||||
void AABBBinaryTreeSearch<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::Clear(void) {
|
||||
this->tree.Clear();
|
||||
}
|
||||
|
||||
template <class OBJTYPE, class SCALARTYPE, class NODEAUXDATATYPE>
|
||||
template <class OBJPOINTDISTANCEFUNCT>
|
||||
typename AABBBinaryTreeSearch<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::ObjPtr AABBBinaryTreeSearch<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::GetClosest(OBJPOINTDISTANCEFUNCT & getPointDistance, const CoordType & p, ScalarType & minDist, CoordType & res) const {
|
||||
typedef std::vector<typename TreeType::NodeType *> NodePtrVector;
|
||||
typedef typename NodePtrVector::const_iterator NodePtrVector_ci;
|
||||
|
||||
const TreeType & t = this->tree;
|
||||
TreeType::NodeType * pRoot = t.pRoot;
|
||||
|
||||
if (pRoot == 0) {
|
||||
return (0);
|
||||
}
|
||||
|
||||
NodePtrVector clist1;
|
||||
NodePtrVector clist2;
|
||||
NodePtrVector leaves;
|
||||
|
||||
NodePtrVector * candidates = &clist1;
|
||||
NodePtrVector * newCandidates = &clist2;
|
||||
|
||||
clist1.reserve(t.pObjects.size());
|
||||
clist2.reserve(t.pObjects.size());
|
||||
leaves.reserve(t.pObjects.size());
|
||||
|
||||
clist1.resize(0);
|
||||
clist2.resize(0);
|
||||
leaves.resize(0);
|
||||
|
||||
#ifdef max
|
||||
#undef max
|
||||
#endif
|
||||
ScalarType minMaxDist = std::numeric_limits<ScalarType>::max();
|
||||
|
||||
candidates->push_back(t.pRoot);
|
||||
|
||||
while (!candidates->empty()) {
|
||||
newCandidates->resize(0);
|
||||
minMaxDist = ClassType::MinimumMaxSquareDistance(minMaxDist, *candidates, p);
|
||||
for (NodePtrVector_ci ci=candidates->begin(); ci!=candidates->end(); ++ci) {
|
||||
if ((*ci)->auxData.searchData.minDist < minMaxDist) {
|
||||
if ((*ci)->IsLeaf()) {
|
||||
leaves.push_back(*ci);
|
||||
}
|
||||
else {
|
||||
if ((*ci)->children[0] != 0) {
|
||||
newCandidates->push_back((*ci)->children[0]);
|
||||
}
|
||||
if ((*ci)->children[1] != 0) {
|
||||
newCandidates->push_back((*ci)->children[1]);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
NodePtrVector * cSwap = candidates;
|
||||
candidates = newCandidates;
|
||||
newCandidates = cSwap;
|
||||
}
|
||||
|
||||
clist1.clear();
|
||||
clist2.clear();
|
||||
|
||||
ObjPtr closestObject = 0;
|
||||
CoordType closestPoint;
|
||||
ScalarType closestDist = math::Sqrt(minMaxDist) + std::numeric_limits<ScalarType>::epsilon();
|
||||
ScalarType closestDistSq = minMaxDist + std::numeric_limits<ScalarType>::epsilon();
|
||||
|
||||
for (NodePtrVector_ci ci=leaves.begin(); ci!=leaves.end(); ++ci) {
|
||||
if ((*ci)->auxData.searchData.minDist < closestDistSq) {
|
||||
for (typename TreeType::ObjPtrVectorConstIterator si=(*ci)->oBegin; si!=(*ci)->oEnd; ++si) {
|
||||
if (getPointDistance(*(*si), p, closestDist, closestPoint)) {
|
||||
closestDistSq = closestDist * closestDist;
|
||||
closestObject = (*si);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
leaves.clear();
|
||||
|
||||
res = closestPoint;
|
||||
minDist = closestDist;
|
||||
|
||||
return (closestObject);
|
||||
}
|
||||
|
||||
template <class OBJTYPE, class SCALARTYPE, class NODEAUXDATATYPE>
|
||||
template <class OBJPOINTDISTANCEFUNCT>
|
||||
void AABBBinaryTreeSearch<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::DepthFirstCollect(const CoordType & p, typename TreeType::NodeType * node, ScalarType & mindmax, const unsigned int k, PQueueType & pq, OBJPOINTDISTANCEFUNCT & getPointDistance) {
|
||||
const CoordType dc = ClassType::Abs(p - node->boxCenter);
|
||||
|
||||
if (pq.size() >= k) {
|
||||
const ScalarType dmin = ClassType::LowerClamp(dc - node->boxHalfDims, (ScalarType)0).SquaredNorm();
|
||||
if (dmin >= mindmax) {
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
if (node->IsLeaf()) {
|
||||
bool someInserted = true;
|
||||
for (typename TreeType::ObjPtrVectorConstIterator si=node->oBegin; si!=node->oEnd; ++si) {
|
||||
ScalarType minDst = (pq.size() >= k) ? (pq.top().minDist) : (std::numeric_limits<ScalarType>::max());
|
||||
ClosestObjType cobj;
|
||||
if (getPointDistance(*(*si), p, minDst, cobj.closestPt)) {
|
||||
someInserted = true;
|
||||
cobj.pObj = (*si);
|
||||
cobj.minDist = minDst;
|
||||
if (pq.size() >= k) {
|
||||
pq.pop();
|
||||
}
|
||||
pq.push(cobj);
|
||||
}
|
||||
}
|
||||
if (someInserted) {
|
||||
if (pq.size() >= k) {
|
||||
const ScalarType dmax = pq.top().minDist;
|
||||
const ScalarType sqdmax = dmax * dmax;
|
||||
if (sqdmax < mindmax) {
|
||||
mindmax = sqdmax;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
else {
|
||||
if (node->children[0] != 0) {
|
||||
DepthFirstCollect(p, node->children[0], mindmax, k, pq, getPointDistance);
|
||||
}
|
||||
if (node->children[1] != 0) {
|
||||
DepthFirstCollect(p, node->children[1], mindmax, k, pq, getPointDistance);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
template <class OBJTYPE, class SCALARTYPE, class NODEAUXDATATYPE>
|
||||
template <class OBJPOINTDISTANCEFUNCT, class OBJPTRCONTAINER, class DISTCONTAINER, class POINTCONTAINER>
|
||||
unsigned int AABBBinaryTreeSearch<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::GetKClosests(OBJPOINTDISTANCEFUNCT & getPointDistance, const unsigned int k, const CoordType & p, OBJPTRCONTAINER & closestObjs, DISTCONTAINER & distances, POINTCONTAINER & closestPts) const {
|
||||
typedef std::vector<typename TreeType::NodeType *> NodePtrVector;
|
||||
typedef typename NodePtrVector::const_iterator NodePtrVector_ci;
|
||||
|
||||
const TreeType & t = this->tree;
|
||||
TreeType::NodeType * pRoot = t.pRoot;
|
||||
|
||||
if (pRoot == 0) {
|
||||
return (0);
|
||||
}
|
||||
|
||||
PQueueType pq;
|
||||
ScalarType mindmax = std::numeric_limits<ScalarType>::max();
|
||||
|
||||
ClassType::DepthFirstCollect(p, pRoot, mindmax, k, pq, getPointDistance);
|
||||
|
||||
const unsigned int sz = pq.size();
|
||||
|
||||
while (!pq.empty()) {
|
||||
ClosestObjType cobj = pq.top();
|
||||
pq.pop();
|
||||
closestObjs.push_back(cobj.pObj);
|
||||
distances.push_back(cobj.minDist);
|
||||
closestPts.push_back(cobj.closestPt);
|
||||
}
|
||||
|
||||
return (sz);
|
||||
}
|
||||
|
||||
template <class OBJTYPE, class SCALARTYPE, class NODEAUXDATATYPE>
|
||||
typename AABBBinaryTreeSearch<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::CoordType AABBBinaryTreeSearch<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::Abs(const CoordType & p) {
|
||||
return (CoordType(math::Abs(p[0]), math::Abs(p[1]), math::Abs(p[2])));
|
||||
}
|
||||
|
||||
template <class OBJTYPE, class SCALARTYPE, class NODEAUXDATATYPE>
|
||||
typename AABBBinaryTreeSearch<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::CoordType AABBBinaryTreeSearch<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::LowerClamp(const CoordType & p, const ScalarType & r) {
|
||||
return (CoordType(math::Max<ScalarType>(p[0], r), math::Max<ScalarType>(p[1], r), math::Max<ScalarType>(p[2], r)));
|
||||
}
|
||||
|
||||
template <class OBJTYPE, class SCALARTYPE, class NODEAUXDATATYPE>
|
||||
typename AABBBinaryTreeSearch<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::ScalarType AABBBinaryTreeSearch<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::MinimumMaxSquareDistance(const ScalarType & currMinMaxDist, const std::vector<typename TreeType::NodeType *> & n, const CoordType & p) {
|
||||
typedef std::vector<typename TreeType::NodeType *> NodePtrVector;
|
||||
typedef typename NodePtrVector::const_iterator NodePtrVector_ci;
|
||||
|
||||
ScalarType minMaxDist = currMinMaxDist;
|
||||
|
||||
for (NodePtrVector_ci bv=n.begin(); bv!=n.end(); ++bv) {
|
||||
const CoordType dc = ClassType::Abs(p - (*bv)->boxCenter);
|
||||
const ScalarType maxDist = (dc + (*bv)->boxHalfDims).SquaredNorm();
|
||||
(*bv)->auxData.searchData.minDist = ClassType::LowerClamp(dc - (*bv)->boxHalfDims, (ScalarType)0).SquaredNorm();
|
||||
if (maxDist < minMaxDist) {
|
||||
minMaxDist = maxDist;
|
||||
}
|
||||
}
|
||||
|
||||
return (minMaxDist);
|
||||
}
|
||||
|
||||
template <class OBJTYPE, class SCALARTYPE, class NODEAUXDATATYPE>
|
||||
void AABBBinaryTreeSearch<OBJTYPE, SCALARTYPE, NODEAUXDATATYPE>::MinMaxSquareDistance(const typename TreeType::NodeType * n, const CoordType & p, ScalarType & dmin, ScalarType & dmax) {
|
||||
const CoordType dc = ClassType::Abs(p - n->boxCenter);
|
||||
dmax = (dc + n->boxHalfDims).SquaredNorm();
|
||||
dmin = ClassType::LowerClamp(dc - n->boxHalfDims, (ScalarType)0).SquaredNorm();
|
||||
}
|
||||
|
||||
} // end namespace vcg
|
||||
|
||||
#endif // #ifndef __VCGLIB_AABBBINARYTREESEARCH
|
||||
|
|
@ -1,228 +0,0 @@
|
|||
/****************************************************************************
|
||||
* VCGLib o o *
|
||||
* Visual and Computer Graphics Library o o *
|
||||
* _ O _ *
|
||||
* Copyright(C) 2005 \/)\/ *
|
||||
* Visual Computing Lab /\/| *
|
||||
* ISTI - Italian National Research Council | *
|
||||
* \ *
|
||||
* All rights reserved. *
|
||||
* *
|
||||
* This program is free software; you can redistribute it and/or modify *
|
||||
* it under the terms of the GNU General Public License as published by *
|
||||
* the Free Software Foundation; either version 2 of the License, or *
|
||||
* (at your option) any later version. *
|
||||
* *
|
||||
* This program is distributed in the hope that it will be useful, *
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
|
||||
* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
|
||||
* for more details. *
|
||||
* *
|
||||
****************************************************************************/
|
||||
/****************************************************************************
|
||||
History
|
||||
|
||||
$Log: not supported by cvs2svn $
|
||||
Revision 1.3 2005/09/16 10:03:46 m_di_benedetto
|
||||
General interface redefinition, added special functors for faces.
|
||||
|
||||
Revision 1.2 2005/09/11 11:46:43 m_di_benedetto
|
||||
First Commit
|
||||
|
||||
|
||||
|
||||
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __VCGLIB_AABBBINARYTREEUTILS
|
||||
#define __VCGLIB_AABBBINARYTREEUTILS
|
||||
|
||||
// vcg headers
|
||||
#include <vcg/space/point3.h>
|
||||
#include <vcg/space/box3.h>
|
||||
|
||||
|
||||
/***************************************************************************************/
|
||||
|
||||
namespace vcg {
|
||||
|
||||
/*
|
||||
|
||||
Class AABBBinaryTreeUtils
|
||||
|
||||
SAMPLE USAGE:
|
||||
|
||||
NOTES:
|
||||
|
||||
*/
|
||||
|
||||
template <class SCALARTYPE, class OBJTYPE>
|
||||
class AABBBinaryTreeUtils {
|
||||
public:
|
||||
typedef AABBBinaryTreeUtils<SCALARTYPE, OBJTYPE> ClassType;
|
||||
typedef SCALARTYPE ScalarType;
|
||||
typedef OBJTYPE ObjType;
|
||||
|
||||
protected:
|
||||
template <class T1, class T2>
|
||||
class P3Converter {
|
||||
public:
|
||||
static Point3<T1> Convert(const Point3<T2> & p) {
|
||||
return Point3<T1>( (T1)p[0], (T1)p[1], (T1)p[2] );
|
||||
}
|
||||
};
|
||||
|
||||
template <class T>
|
||||
class P3Converter<T, T> {
|
||||
public:
|
||||
static Point3<T> Convert(const Point3<T> & p) {
|
||||
return (p);
|
||||
}
|
||||
};
|
||||
|
||||
public:
|
||||
|
||||
template <class S, class T>
|
||||
static Point3<S> ConvertP3(const Point3<T> & p) {
|
||||
return (ClassType::P3Converter<S, T>::Convert(p));
|
||||
}
|
||||
|
||||
class Face {
|
||||
};
|
||||
|
||||
class EmptyClass {
|
||||
};
|
||||
|
||||
|
||||
class ObjIteratorPtrFunct {
|
||||
public:
|
||||
template <class T>
|
||||
inline T * operator () (T & t) {
|
||||
return (&t);
|
||||
}
|
||||
template <class T *>
|
||||
inline T * operator () (T* & t) {
|
||||
return (t);
|
||||
}
|
||||
|
||||
};
|
||||
|
||||
static ObjIteratorPtrFunct IteratorPtrFunctor(void) {
|
||||
ObjIteratorPtrFunct pp;
|
||||
return pp;
|
||||
}
|
||||
|
||||
template <class OBJ>
|
||||
class ObjBoxFunct {
|
||||
public:
|
||||
inline Box3<ScalarType> operator () (const OBJ & obj) {
|
||||
(void)obj;
|
||||
Box3<ScalarType> box;
|
||||
box.SetNull();
|
||||
return (box);
|
||||
}
|
||||
};
|
||||
|
||||
static ObjBoxFunct<ObjType> BoxFunctor(void) {
|
||||
ObjBoxFunct<ObjType> tt;
|
||||
return tt;
|
||||
}
|
||||
|
||||
template <class FACETYPE>
|
||||
class FaceBoxFunct {
|
||||
public:
|
||||
typedef FACETYPE FaceType;
|
||||
inline Box3<ScalarType> operator () (const FaceType & f) {
|
||||
Box3<ScalarType> box;
|
||||
box.Set(ConvertP3<ScalarType, FaceType::ScalarType>(f.P(0)));
|
||||
box.Add(ConvertP3<ScalarType, FaceType::ScalarType>(f.P(1)));
|
||||
box.Add(ConvertP3<ScalarType, FaceType::ScalarType>(f.P(2)));
|
||||
return (box);
|
||||
}
|
||||
};
|
||||
|
||||
template <class FACETYPE>
|
||||
static FaceBoxFunct<FACETYPE> FaceBoxFunctor(void) {
|
||||
FaceBoxFunct<FACETYPE> tt;
|
||||
return tt;
|
||||
}
|
||||
|
||||
template <class OBJ>
|
||||
class ObjBarycenterFunct {
|
||||
public:
|
||||
inline Point3<ScalarType> operator () (const OBJ & obj) {
|
||||
(void)obj;
|
||||
printf("GENERAL\n");
|
||||
Point3<ScalarType> bc(ScalarType(0), ScalarType(0), ScalarType(0));
|
||||
return (bc);
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
static ObjBarycenterFunct<ObjType> BarycenterFunctor(void) {
|
||||
ObjBarycenterFunct<ObjType> tt;
|
||||
return tt;
|
||||
}
|
||||
|
||||
template <class FACETYPE>
|
||||
class FaceBarycenterFunct {
|
||||
public:
|
||||
typedef FACETYPE FaceType;
|
||||
inline Point3<ScalarType> operator () (const FaceType & f) {
|
||||
return (ConvertP3<ScalarType, FaceType::ScalarType>(f.Barycenter()));
|
||||
}
|
||||
};
|
||||
|
||||
template <class FACETYPE>
|
||||
static FaceBarycenterFunct<FACETYPE> FaceBarycenterFunctor(void) {
|
||||
FaceBarycenterFunct<FACETYPE> tt;
|
||||
return tt;
|
||||
}
|
||||
|
||||
template <class OBJ>
|
||||
class ObjPointDistanceFunct {
|
||||
public:
|
||||
inline bool operator () (const OBJ & obj, const Point3<ScalarType> & p, ScalarType & minDist, Point3<ScalarType> & res) {
|
||||
(void)obj;
|
||||
(void)p;
|
||||
(void)minDist;
|
||||
(void)res;
|
||||
return (false);
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
static ObjPointDistanceFunct<ObjType> PointDistanceFunctor(void) {
|
||||
ObjPointDistanceFunct<ObjType> tt;
|
||||
return tt;
|
||||
}
|
||||
|
||||
template <class FACETYPE>
|
||||
class FacePointDistanceFunct {
|
||||
public:
|
||||
typedef FACETYPE FaceType;
|
||||
inline bool operator () (const FaceType & f, const Point3<ScalarType> & p, ScalarType & minDist, Point3<ScalarType> & res) {
|
||||
Point3<ScalarType> fp = ConvertP3<FaceType::ScalarType, ScalarType>(p);
|
||||
typename FaceType::ScalarType md = (typename FaceType::ScalarType)minDist;
|
||||
Point3<ScalarType> fres;
|
||||
const bool bret = face::PointDistance(f, p, md, fres);
|
||||
minDist = ScalarType(md);
|
||||
res = ConvertP3<ScalarType, typename FaceType::ScalarType>(fres);
|
||||
return (bret);
|
||||
}
|
||||
};
|
||||
|
||||
template <class FACETYPE>
|
||||
static FacePointDistanceFunct<FACETYPE> FacePointDistanceFunctor(void) {
|
||||
FacePointDistanceFunct<FACETYPE> tt;
|
||||
return tt;
|
||||
}
|
||||
|
||||
};
|
||||
|
||||
/***************************************************************************************/
|
||||
|
||||
} // end namespace vcg
|
||||
|
||||
#endif // #ifndef __VCGLIB_AABBBINARYTREEUTILS
|
||||
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Reference in New Issue