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//=====================================================
// File : size_log.hh
// Author : L. Plagne <laurent.plagne@edf.fr)>
// Copyright (C) EDF R&D, lun sep 30 14:23:17 CEST 2002
//=====================================================
//
// 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 for more details.
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
#ifndef SIZE_LOG
#define SIZE_LOG
#include "math.h"
// The Vector class must satisfy the following part of STL vector concept :
// resize() method
// [] operator for setting element
// the vector element are int compatible.
template<class Vector>
void size_log(const int nb_point, const int size_min, const int size_max, Vector & X)
{
X.resize(nb_point);
float ls_min=log(float(size_min));
float ls_max=log(float(size_max));
float ls=0.0;
float delta_ls=(ls_max-ls_min)/(float(nb_point-1));
int size=0;
for (int i=0;i<nb_point;i++){
ls = ls_min + float(i)*delta_ls ;
size=int(exp(ls));
X[i]=size;
}
}
#endif
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