LA_library/efector.cc
2010-01-17 20:28:38 +00:00

101 lines
3.2 KiB
C++

/*
LA: linear algebra C++ interface library
Copyright (C) 2008 Jiri Pittner <jiri.pittner@jh-inst.cas.cz> or <jiri@pittnerovi.com>
This file contributed by <miroslav.sulc@jh-inst.cas.cz>
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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "la_traits.h"
#include <iostream>
#include <sstream>
namespace LA {
//--------------------------------------------------------------------------------
class PrintNRCMat{
private:
public:
std::ostringstream s;
PrintNRCMat(const PrintNRCMat &_fw);
PrintNRCMat(const NRCMat& _K, const int _prec = 5, const int _pl = 0, const int _pt = 0, const double _tol = 1.0e-12);
friend ostream& operator<<(ostream& os, const PrintNRCMat& fw){
return (os << fw.s.str());
}
};
//--------------------------------------------------------------------------------
PrintNRCMat::PrintNRCMat(const PrintNRCMat &_fw){
this->s.str(_fw.s.str());
}
//--------------------------------------------------------------------------------
PrintNRCMat::PrintNRCMat(const NRCMat &_K, const int _prec, const int _pl, const int _pt, const double _tol){
/*
formatuje realnou cast komplexni matice _K ve forme tabulky, napr.
----------------------------------------------
| +6.80375e+00 | +5.66198e+00 | +8.23295e+00 |
----------------------------------------------
| -3.29554e+00 | -4.44451e+00 | -4.52059e-01 |
----------------------------------------------
| -2.70431e+00 | +9.04459e+00 | +2.71423e+00 |
----------------------------------------------
parametry:
_prec presnost pro cout << setprecision(...)
_pl left padding - odsazeni tabulky zleva
_pt top padding - odsazeni tabulky seshora
_tol cisla mensi v abs. hodnote nez _tol se zobrazi jako 0
*/
const int n = _K.nrows();
const int m = _K.ncols();
double val(0.0);
const int w = _prec + 7;
const int sirka = m*(w+3) + 1;
const int pl = (_pl>0&&_pl<10)?_pl:0;
const int pt = (_pt>0&&_pt<10)?_pt:0;
const string vl = string(pl, ' ');
const string radek = string(sirka, '-');
const string vypln = string(w, ' ');
this->s << scientific << setprecision(_prec) << showpos;
this->s << string(pt, '\n');
const string name = _K.getname();
if(name != ""){
this->s << vl << "matrix '" << name << "': " << endl;
}
this->s << vl << radek << endl;
for(register int i = 0;i < n;i++){
this->s << vl;
for(register int j = 0;j < m; j++){
val = (_K[i][j]).real();
this->s << setw(2) << right << "| " << setw(w) << left;
if(std::abs(val)<_tol){
this->s << val;
}else{
this->s << val;
}
this->s << setw(1) << " ";
}
this->s << "|" << endl;
this->s << vl << radek << endl;
}
}
}//namespace