LORENE
map_et_resize_extr.C
1 /*
2  * Method of the class Map_et to compute the rescale of the outermost domain
3  * in the case of non-compactified external domain.
4  *
5  * (see file map.h for documentation).
6  *
7  */
8 
9 /*
10  * Copyright (c) 2004 Keisuke Taniguchi
11  *
12  * This file is part of LORENE.
13  *
14  * LORENE is free software; you can redistribute it and/or modify
15  * it under the terms of the GNU General Public License version 2
16  * as published by the Free Software Foundation.
17  *
18  * LORENE is distributed in the hope that it will be useful,
19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21  * GNU General Public License for more details.
22  *
23  * You should have received a copy of the GNU General Public License
24  * along with LORENE; if not, write to the Free Software
25  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26  *
27  */
28 
29 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 $" ;
30 
31 /*
32  * $Id: map_et_resize_extr.C,v 1.3 2014/10/13 08:53:05 j_novak Exp $
33  * $Log: map_et_resize_extr.C,v $
34  * Revision 1.3 2014/10/13 08:53:05 j_novak
35  * Lorene classes and functions now belong to the namespace Lorene.
36  *
37  * Revision 1.2 2014/10/06 15:13:13 j_novak
38  * Modified #include directives to use c++ syntax.
39  *
40  * Revision 1.1 2004/11/30 20:54:24 k_taniguchi
41  * *** empty log message ***
42  *
43  *
44  * $Header: /cvsroot/Lorene/C++/Source/Map/map_et_resize_extr.C,v 1.3 2014/10/13 08:53:05 j_novak Exp $
45  *
46  */
47 
48 // C headers
49 #include <cassert>
50 
51 // Lorene headers
52 #include "map.h"
53 
54 namespace Lorene {
55 void Map_et::resize_extr(double lambda) {
56 
57  // Protections
58  // -----------
59  int l = mg->get_nzone() - 1 ;
60 
61  if (mg->get_type_r(l) != FIN) {
62  cout << "Map_et::resize_extr can be applied only to a shell !"
63  << endl ;
64  abort() ;
65  }
66 
67  // Assertion
68  // ---------
69  assert(mg->get_nzone() >= 3) ; // The outermost domain should be
70  // a spherical shell in this method.
71 
72  // New values of alpha and beta in the outermost domain :
73  // ----------------------------------------------------
74  double n_alpha = 0.5 * ( (lambda + 1.) * alpha[l]
75  + (lambda - 1.) * beta[l] ) ;
76 
77  double n_beta = 0.5 * ( (lambda - 1.) * alpha[l]
78  + (lambda + 1.) * beta[l] ) ;
79 
80  alpha[l] = n_alpha ;
81  beta[l] = n_beta ;
82 
83  // The coords are no longer up to date :
84  reset_coord() ;
85 
86 }
87 }
double * alpha
Array (size: mg->nzone ) of the values of in each domain.
Definition: map.h:2758
Lorene prototypes.
Definition: app_hor.h:64
int get_nzone() const
Returns the number of domains.
Definition: grilles.h:448
virtual void reset_coord()
Resets all the member Coords.
Definition: map_et.C:628
const Mg3d * mg
Pointer on the multi-grid Mgd3 on which this is defined.
Definition: map.h:676
double * beta
Array (size: mg->nzone ) of the values of in each domain.
Definition: map.h:2760
void resize_extr(double lambda)
Rescales the outer boundary of the outermost domain in the case of non-compactified external domain...
int get_type_r(int l) const
Returns the type of sampling in the radial direction in domain no.
Definition: grilles.h:474