vcglib/wrap/bmt/bmt.h

111 lines
3.5 KiB
C++

/****************************************************************************
* VCGLib o o *
* Visual and Computer Graphics Library o o *
* _ O _ *
* Copyright(C) 2004-2016 \/)\/ *
* 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. *
* *
****************************************************************************/
/****************************************************************************
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$Log: not supported by cvs2svn $
****************************************************************************/
#ifndef VCG_BMT_H
#define VCG_BMT_H
#include <string>
#include <vector>
#include <vcg/space/sphere3.h>
#include <wrap/mt/mt.h>
namespace vcg {
/** \addtogroup bmt */
/*@{*/
/**
The class for representing a batched mt structure.
See bmt.cpp for details on the structure of the file.
*/
class Bmt {
public:
///Cell structure for the mt representation
class Cell {
public:
//this effectively limits databases to 4Gb in size.
unsigned int offset;
float error;
Sphere3f sphere;
float Error() { return error; }
};
///tells what is inside each cell.
unsigned int signature;
///Bounding sphere
Sphere3f sphere;
std::vector<Cell> index;
std::vector< MT<Bmt::Cell>::Update > history;
Bmt();
~Bmt();
bool Load(const std::string &filename);
char *GetData(unsigned int &size, unsigned int offset);
private:
FILE *fp;
unsigned int index_offset;
unsigned int index_size;
unsigned int history_offset;
unsigned int history_size;
};
class BmtBuilder {
public:
BmtBuilder();
~BmtBuilder();
///tells what is inside each cell.
unsigned int signature;
///Bounding sphere
Sphere3f sphere;
std::vector<Bmt::Cell> index;
std::vector<std::vector<unsigned int > > creation;
std::vector<std::vector<unsigned int > > deletion;
bool Create(unsigned int signature);
unsigned int AddCell(Bmt::Cell cell, unsigned int size, char *data);
void AddUpdate(std::vector<unsigned int> &created, std::vector<unsigned int> &erased);
bool Save(const std::string &filename);
private:
FILE *ftmp;
FILE *fout;
};
float Distance(Bmt::Cell &cell, Point3f &p);
}//end namespace
#endif