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/*
* Method of the class Map_et to compute the rescale of the outermost domain
* in the case of non-compactified external domain.
*
* (see file map.h for documentation).
*
*/
/*
* Copyright (c) 2004 Keisuke Taniguchi
*
* 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 version 2
* as published by the Free Software Foundation.
*
* 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_et_resize_extr_C[] = "$Header: /cvsroot/Lorene/C++/Source/Map/map_et_resize_extr.C,v 1.3 2014/10/13 08:53:05 j_novak Exp $" ;
/*
* $Id: map_et_resize_extr.C,v 1.3 2014/10/13 08:53:05 j_novak Exp $
* $Log: map_et_resize_extr.C,v $
* Revision 1.3 2014/10/13 08:53:05 j_novak
* Lorene classes and functions now belong to the namespace Lorene.
*
* Revision 1.2 2014/10/06 15:13:13 j_novak
* Modified #include directives to use c++ syntax.
*
* Revision 1.1 2004/11/30 20:54:24 k_taniguchi
* *** empty log message ***
*
*
* $Header: /cvsroot/Lorene/C++/Source/Map/map_et_resize_extr.C,v 1.3 2014/10/13 08:53:05 j_novak Exp $
*
*/
// C headers
#include <cassert>
// Lorene headers
#include "map.h"
namespace Lorene {
void Map_et::resize_extr(double lambda) {
// Protections
// -----------
int l = mg->get_nzone() - 1 ;
if (mg->get_type_r(l) != FIN) {
cout << "Map_et::resize_extr can be applied only to a shell !"
<< endl ;
abort() ;
}
// Assertion
// ---------
assert(mg->get_nzone() >= 3) ; // The outermost domain should be
// a spherical shell in this method.
// New values of alpha and beta in the outermost domain :
// ----------------------------------------------------
double n_alpha = 0.5 * ( (lambda + 1.) * alpha[l]
+ (lambda - 1.) * beta[l] ) ;
double n_beta = 0.5 * ( (lambda - 1.) * alpha[l]
+ (lambda + 1.) * beta[l] ) ;
alpha[l] = n_alpha ;
beta[l] = n_beta ;
// The coords are no longer up to date :
reset_coord() ;
}
}
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