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/*
* Methods of the class Map_log relative to the function
* r = R_l(xi, theta', phi')
*/
/*
* Copyright (c) 2004 Philippe Grandclement
*
* This file is part of LORENE.
*
* LORENE 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.
*
* LORENE 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 LORENE; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
char map_log_radius_C[] = "$Header: /cvsroot/Lorene/C++/Source/Map/map_log_radius.C,v 1.4 2014/10/13 08:53:06 j_novak Exp $" ;
/*
* $Id: map_log_radius.C,v 1.4 2014/10/13 08:53:06 j_novak Exp $
* $Log: map_log_radius.C,v $
* Revision 1.4 2014/10/13 08:53:06 j_novak
* Lorene classes and functions now belong to the namespace Lorene.
*
* Revision 1.3 2014/10/06 15:13:13 j_novak
* Modified #include directives to use c++ syntax.
*
* Revision 1.2 2004/06/22 12:20:17 j_novak
* *** empty log message ***
*
* Revision 1.1 2004/06/22 08:49:58 p_grandclement
* Addition of everything needed for using the logarithmic mapping
*
*
* $Header: /cvsroot/Lorene/C++/Source/Map/map_log_radius.C,v 1.4 2014/10/13 08:53:06 j_novak Exp $
*
*/
#include <cmath>
// Headers Lorene
#include "map.h"
//------------------------------//
// val_r //
//------------------------------//
namespace Lorene {
double Map_log::val_r(int l, double xi, double, double) const {
assert( l>=0 ) ;
assert( l<mg->get_nzone() ) ;
double resu ;
switch (type_var(l)) {
case AFFINE : {
switch( mg->get_type_r(l) ) {
case FIN: case RARE: {
resu = alpha(l) * xi + beta(l) ;
break ;
}
case UNSURR: {
resu = double(1) / ( alpha(l) * xi + beta(l) ) ;
break ;
}
default: {
cout << "Map_log::val_r: unknown type_r ! " << endl ;
abort () ;
}
}
break ;
}
case LOG : {
switch( mg->get_type_r(l) ) {
case FIN: {
resu = exp(alpha(l) * xi + beta(l)) ;
break ;
}
default: {
cout << "Map_log::val_r: unknown type_r ! " << endl ;
abort () ;
}
}
break ;
}
default: {
cout << "Map_log::val_r: unknown type_r ! " << endl ;
abort () ;
}
}
return resu ;
}
//------------------------------//
// val_lx //
//------------------------------//
void Map_log::val_lx(double rr, double, double, int& lz, double& xi) const {
// In which domain is located r ?
// ----------------------------
int nz = mg->get_nzone() ;
lz = - 1 ;
for (int l=0; l<nz; l++) {
double rmax = 0;
switch (type_var(l)) {
case AFFINE : {
rmax = alpha(l) + beta(l) ;
break ;
}
case LOG : {
rmax = exp(alpha(l) + beta(l)) ;
break ;
}
default : {
cout << "Case unknown in Map_log::val_lx" << endl ;
break ;
}
}
if (mg->get_type_r(l) == UNSURR) rmax = double(1)/rmax ;
if ( rr <= rmax ) {
lz = l ;
break ;
}
} // fin de la boucle sur les zones
if (lz == -1) { // On n'a pas trouve la zone
cout.precision(16);
cout.setf(ios::showpoint);
cout << "Map_log::val_lx: the domain containing r = " << rr <<
" has not been found ! "
<< endl ;
abort () ;
}
// Computation of xi
// -----------------
switch (type_var(lz)) {
case AFFINE: {
switch( mg->get_type_r(lz) ) {
case FIN: case RARE: {
xi = ( rr - beta(lz) ) / alpha(lz) ;
break ;
}
case UNSURR: {
xi = ( double(1)/rr - beta(lz) ) / alpha(lz) ;
break ;
}
default: {
cout << "Map_log::val_lx: unknown type_r ! " << endl ;
abort () ;
}
}
break ;
}
case LOG :{
switch( mg->get_type_r(lz) ) {
case FIN: {
xi = ( log(rr) - beta(lz) ) / alpha(lz) ;
break ;
}
default: {
cout << "Map_log::val_lx: unknown type_r ! " << endl ;
abort () ;
}
}
break ;
}
default : {
cout << "Map_log::val_lx: unknown type_r ! " << endl ;
abort () ;
}
}
}
void Map_log::val_lx(double rr, double, double, const Param&,
int& lz, double& xi) const {
val_lx(rr, 0., 0., lz, xi) ;
}
//------------------------------//
// val_r_jk //
//------------------------------//
double Map_log::val_r_jk(int l, double xi, int, int) const {
return val_r(l, xi, 0., 0.) ;
}
//------------------------------//
// val_lx_jk //
//------------------------------//
void Map_log::val_lx_jk(double rr, int, int, const Param& par,
int& l, double& xi) const {
val_lx(rr, 0., 0., par, l, xi) ;
}
}
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