vcglib/apps/nexus/pvoronoi.h

116 lines
3.8 KiB
C++

/****************************************************************************
* VCGLib o o *
* Visual and Computer Graphics Library o o *
* _ O _ *
* Copyright(C) 2004 \/)\/ *
* 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 1.6 2004/09/21 00:53:23 ponchio
Lotsa changes.
Revision 1.5 2004/08/27 00:39:28 ponchio
Rewrote.
Revision 1.4 2004/07/20 14:17:51 ponchio
*** empty log message ***
Revision 1.3 2004/07/01 21:34:59 ponchio
int -> Key
Revision 1.2 2004/06/25 16:47:13 ponchio
Various debug
Revision 1.1 2004/06/24 14:32:45 ponchio
Moved from wrap/nexus
Revision 1.2 2004/06/24 14:19:20 ponchio
Debugged
Revision 1.1 2004/06/23 17:17:46 ponchio
Created
****************************************************************************/
#ifndef NXS_NET_GRID_H
#define NXS_NET_GRID_H
#include <vector>
#include <set>
#include <string>
#include <stdio.h>
#include <vcg/space/point3.h>
#include <vcg/space/box3.h>
#include <vcg/space/index/grid_static_ptr.h>
#include "crude.h"
//TODO provide a Sort function, to sort spatially the seeds.
namespace nxs {
class Seed {
public:
vcg::Point3f p;
float weight;
typedef float ScalarType;
bool Dist(const vcg::Point3f & point, float &mindist, vcg::Point3f &res);
void GetBBox(vcg::Box3f &b) {b.Set(p);}
bool IsD() { return false; }
Seed(): weight(1) {}
Seed(const vcg::Point3f &point): p(point), weight(1) {}
Seed(const vcg::Point3f &point, const float w):
p(point), weight(w) {}
inline float Dist(const vcg::Point3f &q) const {
return weight * vcg::Distance(p,q);
}
inline float SquaredDist(const vcg::Point3f &q) const {
return weight * weight *vcg::SquaredDistance(p,q);
}
};
class VoronoiPartition: public std::vector<Seed> {
public:
vcg::GridStaticPtr< std::vector<Seed> > ug;
void SetBox(const vcg::Box3f &b) { box = b; }
//call this before starting queries.
void Init();
float Closest(const vcg::Point3f &p,
unsigned int &target, float radius = 0);
unsigned int Locate(const vcg::Point3f &p) {
unsigned int target;
Closest(p, target);
return target;
}
vcg::Box3f box;
};
}
#endif