add vcglib

vcglib/wrap/bmt/bmt.h

@@ -0,0 +1,111 @@
+/****************************************************************************
+* 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.                                                         *
+*                                                                           *
+****************************************************************************/
+/****************************************************************************
+  History
+
+$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