size_log.hh
Go to the documentation of this file.
00001 //=====================================================
00002 // File   :  size_log.hh
00003 // Author :  L. Plagne <laurent.plagne@edf.fr)>        
00004 // Copyright (C) EDF R&D,  lun sep 30 14:23:17 CEST 2002
00005 //=====================================================
00006 // 
00007 // This program is free software; you can redistribute it and/or
00008 // modify it under the terms of the GNU General Public License
00009 // as published by the Free Software Foundation; either version 2
00010 // of the License, or (at your option) any later version.
00011 // 
00012 // This program is distributed in the hope that it will be useful,
00013 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00014 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015 // GNU General Public License for more details.
00016 // You should have received a copy of the GNU General Public License
00017 // along with this program; if not, write to the Free Software
00018 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
00019 // 
00020 #ifndef SIZE_LOG
00021 #define SIZE_LOG
00022 
00023 #include "math.h"
00024 // The Vector class must satisfy the following part of STL vector concept :
00025 //            resize() method
00026 //            [] operator for seting element
00027 // the vector element are int compatible.
00028 template<class Vector>
00029 void size_log(const int nb_point, const int size_min, const int size_max, Vector & X)
00030 {
00031   X.resize(nb_point);
00032 
00033   float ls_min=log(float(size_min));
00034   float ls_max=log(float(size_max));
00035 
00036   float ls=0.0;
00037 
00038   float delta_ls=(ls_max-ls_min)/(float(nb_point-1));
00039 
00040   int size=0;
00041 
00042   for (int i=0;i<nb_point;i++){
00043 
00044     ls = ls_min + float(i)*delta_ls ;
00045     
00046     size=int(exp(ls)); 
00047 
00048     X[i]=size;
00049   }
00050 
00051 }
00052 
00053 
00054 #endif


libicr
Author(s): Robert Krug
autogenerated on Mon Jan 6 2014 11:33:22