add vcglib
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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) 2004-2016 \/)\/ *
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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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// marco :
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// comments
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// corrected bug
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/****************************************************************************
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History
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****************************************************************************/
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#ifndef __VCGLIB_VERTEX_DISTANCE
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#define __VCGLIB_VERTEX_DISTANCE
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#include <vcg/math/base.h>
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#include <vcg/space/point3.h>
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namespace vcg {
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namespace vertex{
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template <class SCALARTYPE>
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class PointDistanceFunctor {
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public:
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typedef Point3<SCALARTYPE> QueryType;
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static inline const Point3<SCALARTYPE> & Pos(const QueryType & qt) {return qt;}
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template <class VERTEXTYPE>
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/*
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* @param v [IN] is a reference to the current object being tested,
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* @param p [IN] is the query point,
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* @param minDist [IN/OUT] is in input the reject distance and in output the closest distance,
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* @param q [OUT] is the closest point.
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*
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* @remarks The operator returns true if the closest distance is less than input reject distance.
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*
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*/
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inline bool operator () (const VERTEXTYPE & v, const Point3<SCALARTYPE> & p, SCALARTYPE & minDist, Point3<SCALARTYPE> & q) const
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{
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// convert the coordinates of p from SCALARTYPE to VERTEXTYPE::ScalarType type
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const Point3<typename VERTEXTYPE::ScalarType> fp = Point3<typename VERTEXTYPE::ScalarType>::Construct(p);
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typename VERTEXTYPE::ScalarType md; // distance between v and fp
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md = (v.cP() - fp).Norm();
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if (md <= minDist)
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{
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minDist = (SCALARTYPE)(md); // minDist is updated to the closest distance
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q = v.cP(); // q is the current closest point
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return true;
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}
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return false;
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}
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};
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template <class VERTYPE>
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class PointNormalDistanceFunctor {
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public:
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typedef VERTYPE QueryType;
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typedef typename VERTYPE::ScalarType ScalarType;
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static inline const Point3<typename VERTYPE::ScalarType> & Pos(const QueryType & qt) {return qt.P();}
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static ScalarType & Alpha(){static ScalarType alpha = 1.0; return alpha;}
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static ScalarType & Beta(){static ScalarType beta= 1.0; return beta;}
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static ScalarType & Gamma(){static ScalarType gamma= 1.0; return gamma;}
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static ScalarType & InterPoint (){static ScalarType interpoint= 1.0; return interpoint;}
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template <class VERTEXTYPE, class SCALARTYPE>
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inline bool operator () (const VERTEXTYPE & v, const VERTEXTYPE & vp, SCALARTYPE & minDist, Point3<SCALARTYPE> & q) {
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float h = vcg::Distance(v.cP(),vp.P()) ;
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float dev = InterPoint() * ( pow((ScalarType) (1-v.cN().dot(vp.cN())), (ScalarType)Beta()) / (Gamma()*h +0.1));
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if(h+dev < minDist){
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minDist = h+dev;
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q = v.P();
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return true;
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}
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// minDist = h +0.0* (1-v.cN()*vp.cN()) / (h + 0.1);
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return false;
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}
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};
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template <class VERTEXYPE>
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class PointScaledDistanceFunctor {
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public:
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typedef typename VERTEXYPE::ScalarType ScalarType;
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typedef Point3<ScalarType> QueryType;
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static inline const Point3<ScalarType> & Pos(const QueryType & qt) {return qt;}
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static Point3<ScalarType> & Cen(){static Point3<ScalarType> cen(0,0,0); return cen;}
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inline bool operator () (const VERTEXYPE & p, const QueryType & qp, ScalarType & minDist, Point3<ScalarType> & q) {
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Point3<ScalarType> ed = (qp-p.P());
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Point3<ScalarType> dir = (p.P()-Cen()).Normalize();
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Point3<ScalarType> odir = (dir^((ed)^dir)).Normalize();
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ScalarType d = fabs(ed * dir) + fabs(ed *odir);
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if(d < minDist){
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minDist = d;
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q = p.P();
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return true;
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}
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return false;
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}
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};
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template <class VertexType>
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class ApproximateGeodesicDistanceFunctor {
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public:
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typedef typename VertexType::ScalarType ScalarType;
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static inline const Point3<ScalarType> & Pos(const VertexType & qt) {return qt.P();}
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inline bool operator () (const VertexType & v, const VertexType & vp, ScalarType & minDist, Point3<ScalarType> & q) {
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ScalarType gd = ApproximateGeodesicDistance(v.cP(),v.cN(),vp.cP(),vp.cN());
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if (gd <= minDist)
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{
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minDist =gd; // minDist is updated to the closest distance
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q = v.P(); // q is the current closest point
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return true;
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}
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return false;
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}
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inline ScalarType operator () (const Point3<ScalarType>& p0, const Point3<ScalarType>& n0,
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const Point3<ScalarType>& p1, const Point3<ScalarType>& n1) {
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return ApproximateGeodesicDistance(p0,n0,p1,n1);
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}
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};
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} // end namespace vertex
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} // end namespace vcg
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#endif
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