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/*
This file is part of LPIC++, a particle-in-cell code for
simulating the interaction of laser light with plasma.
Copyright (C) 1994-1997 Roland Lichters
LPIC++ 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.
*/
//////////////////////////////////////////////////////////////////////////////////////////
//
// fresnel
//
// initializes and reads parameters
// for documentation see 'parameter.h'
//
//////////////////////////////////////////////////////////////////////////////////////////
#include <parameter.h>
parameter::parameter(int argc, char **argv)
{
plasma.wp = 0.8; // default parameters ////////////////////////////////////
pulse.amplitude = 0.01;
pulse.angle = 0.0;
pulse.polarization = 1;
pulse.duration = 60;
prop.time_start = 0.0;
prop.time_stop = 30.0;
prop.spp = 50;
my_name = new(char[filename_size]);
strcpy(my_name,argv[0]);
path = new char [filename_size];
strcpy(path,"data");
if (argc==1) { //////////////// check commandline parameters ///////////////////////////
cerr << "\n\n no arguments " << endl;
}
else {
cerr << "\n\n " << argc - 1 << " arguments" << endl << endl;
}
read_filename = new(char[filename_size]);
if (argc==1) { //////////// read parameters from default filename //////////////////////
char *fname = "input.fresnel";
cout << " reading from " << fname << endl;
read(fname);
}
else { //////////////////// read parameters from specified filename ////////////////////
cout << " reading from " << argv[1] << endl;
read(argv[1]);
}
/////////////////////////////////////////
pulse.angle_rad = PI/180 * pulse.angle;//
/////////////////////////////////////////
cout << " output in " << path << endl;
sprintf( errname, "%s/error", path );
static error_handler bob("parameter::Constructor", errname);
save(path,errname);
};
//////////////////////////////////////////////////////////////////////////////////////////
void parameter::read(char *fname)
{
Trash trash;
int i;
ifstream infile(fname);
if (!infile) {
cerr << "Cannot open infile: " << fname << endl;
cerr << "Using default parameters" << endl;
}
else {
cout << "reading from parameter file does not work." << endl;
cout << "set parameters in parameter.C" << endl;
exit( 0 );
//
infile >> trash >> plasma.wp;
infile >> trash >> pulse.amplitude;
infile >> trash >> pulse.angle;
infile >> trash >> pulse.polarization;
infile >> trash >> pulse.duration;
infile >> trash >> prop.time_start;
infile >> trash >> prop.time_stop;
infile >> trash >> prop.spp;
infile >> trash >> path;
strcpy(read_filename,fname);
infile.close();
}
};
//////////////////////////////////////////////////////////////////////////////////////////
void parameter::save(char *path, char *errname)
{
int i;
static error_handler bob("parameter::save",errname);
char *fname;
fname = new char [filename_size];
sprintf( fname, "%s/output.fresnel", path );
ofstream outfile(fname);
if (!outfile)
bob.error("Cannot open outfile: ", fname);
outfile << "fresnel parameters:" << endl << endl;
outfile << "plasma" << endl;
outfile << "-----------------------------------" << endl;
outfile << "plasma frequency : " << plasma.wp << endl << endl;
outfile << "laser pulse" << endl;
outfile << "-----------------------------------" << endl;
outfile << "incident amplitude : " << pulse.amplitude << endl;
outfile << "angle of incidence : " << pulse.angle << endl;
outfile << "polarization : " << pulse.polarization << endl;
outfile << "duration : " << pulse.duration << endl << endl;
outfile << "propagation" << endl;
outfile << "-----------------------------------" << endl;
outfile << "time_start : " << prop.time_start << endl;
outfile << "time_stop : " << prop.time_stop << endl;
outfile << "steps per period : " << prop.spp << endl << endl;
outfile.close();
};
//////////////////////////////////////////////////////////////////////////////////////////
//EOF
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