LORENE
map_af_poisson_angu.C
1 /*
2  * Resolution of the angular Poisson equation.
3  *
4  * (see file map.h for documentation)
5  *
6  */
7 
8 /*
9  * Copyright (c) 2003-2005 Eric Gourgoulhon & Jerome Novak
10  *
11  * This file is part of LORENE.
12  *
13  * LORENE is free software; you can redistribute it and/or modify
14  * it under the terms of the GNU General Public License version 2
15  * as published by the Free Software Foundation.
16  *
17  * LORENE is distributed in the hope that it will be useful,
18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20  * GNU General Public License for more details.
21  *
22  * You should have received a copy of the GNU General Public License
23  * along with LORENE; if not, write to the Free Software
24  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25  *
26  */
27 
28 char map_af_poisson_angu_C[] = "$Header: /cvsroot/Lorene/C++/Source/Map/map_af_poisson_angu.C,v 1.4 2014/10/13 08:53:03 j_novak Exp $" ;
29 
30 /*
31  * $Id: map_af_poisson_angu.C,v 1.4 2014/10/13 08:53:03 j_novak Exp $
32  * $Log: map_af_poisson_angu.C,v $
33  * Revision 1.4 2014/10/13 08:53:03 j_novak
34  * Lorene classes and functions now belong to the namespace Lorene.
35  *
36  * Revision 1.3 2005/04/04 21:31:31 e_gourgoulhon
37  * Added argument lambda to method poisson_angu
38  * to deal with the generalized angular Poisson equation:
39  * Lap_ang u + lambda u = source.
40  *
41  * Revision 1.2 2003/10/16 08:49:23 j_novak
42  * Added a flag to decide wether the output is in the Ylm or in the standard base.
43  *
44  * Revision 1.1 2003/10/15 21:11:26 e_gourgoulhon
45  * Added method poisson_angu.
46  *
47  *
48  *
49  * $Header: /cvsroot/Lorene/C++/Source/Map/map_af_poisson_angu.C,v 1.4 2014/10/13 08:53:03 j_novak Exp $
50  *
51  */
52 
53 // Lorene headers
54 #include "tensor.h"
55 #include "param.h"
56 
57 namespace Lorene {
58 void Map_af::poisson_angu(const Scalar& source, Param& par, Scalar& uu,
59  double lambda) const {
60 
61  assert(source.get_etat() != ETATNONDEF) ;
62 
63  assert(&(source.get_mp()) == this ) ;
64  assert(&(uu.get_mp()) == this ) ;
65 
66  // Spherical harmonic expansion of the source
67  // ------------------------------------------
68 
69  const Valeur& sourva = source.get_spectral_va() ;
70 
71  if (sourva.get_etat() == ETATZERO) {
72  uu.set_etat_zero() ;
73  return ;
74  }
75 
76  // Spectral coefficients of the source
77  assert(sourva.get_etat() == ETATQCQ) ;
78  sourva.coef() ;
79 
80  Valeur resu(mg) ;
81  resu = *(sourva.c_cf) ; // copy of the coefficients of the source
82 
83  resu.ylm() ; // spherical harmonic transform
84 
85  // Call to the Mtbl_cf version
86  // ---------------------------
87  (resu.c_cf)->poisson_angu(lambda) ;
88 
89  if (par.get_n_int() == 0) resu.ylm_i() ; // Back to standard bases
90  //in the case of no flag present
91  // in the Param
92 
93  // Final result returned as a Scalar
94  // ---------------------------------
95 
96  uu = resu ;
97 
98  uu.set_dzpuis( source.get_dzpuis() ) ; // dzpuis unchanged
99 }
100 
101 }
Lorene::Valeur
Values and coefficients of a (real-value) function.
Definition: valeur.h:287
Lorene::Valeur::get_etat
int get_etat() const
Returns the logical state.
Definition: valeur.h:726
Lorene::Valeur::c_cf
Mtbl_cf * c_cf
Coefficients of the spectral expansion of the function.
Definition: valeur.h:302
Lorene
Lorene prototypes.
Definition: app_hor.h:64
Lorene::Scalar
Tensor field of valence 0 (or component of a tensorial field).
Definition: scalar.h:387
Lorene::Tensor::get_mp
const Map & get_mp() const
Returns the mapping.
Definition: tensor.h:861
Lorene::Valeur::coef
void coef() const
Computes the coeffcients of *this.
Definition: valeur_coef.C:148
Lorene::Scalar::get_spectral_va
const Valeur & get_spectral_va() const
Returns va (read only version)
Definition: scalar.h:601
Lorene::Param::get_n_int
int get_n_int() const
Returns the number of stored int 's addresses.
Definition: param.C:239
Lorene::Scalar::set_etat_zero
virtual void set_etat_zero()
Sets the logical state to ETATZERO (zero).
Definition: scalar.C:324
Lorene::Scalar::set_dzpuis
void set_dzpuis(int)
Modifies the dzpuis flag.
Definition: scalar.C:808
Lorene::Scalar::get_etat
int get_etat() const
Returns the logical state ETATNONDEF (undefined), ETATZERO (null) or ETATQCQ (ordinary).
Definition: scalar.h:554
Lorene::Param
Parameter storage.
Definition: param.h:125
Lorene::Scalar::get_dzpuis
int get_dzpuis() const
Returns dzpuis.
Definition: scalar.h:557
Lorene::Valeur::ylm
void ylm()
Computes the coefficients of *this.
Definition: valeur_ylm.C:138
Lorene::Valeur::ylm_i
void ylm_i()
Inverse of ylm()
Definition: valeur_ylm_i.C:131
Lorene::Map_af::poisson_angu
virtual void poisson_angu(const Scalar &source, Param &par, Scalar &uu, double lambda=0) const
Computes the solution of the generalized angular Poisson equation.
Definition: map_af_poisson_angu.C:58
Lorene::Map::mg
const Mg3d * mg
Pointer on the multi-grid Mgd3 on which this is defined
Definition: map.h:676