LORENE
ope_helmholtz_minus_2d_non_dege.C
1/*
2 * Copyright (c) 2004 Philippe Grandclement
3 *
4 * This file is part of LORENE.
5 *
6 * LORENE is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2
8 * as published by the Free Software Foundation.
9 *
10 * LORENE is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with LORENE; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 *
19 */
20
21char ope_helmholtz_minus_2d_non_dege_C[] = "$Header: /cvsroot/Lorene/C++/Source/Ope_elementary/Ope_helmholtz_minus_2d/ope_helmholtz_minus_2d_non_dege.C,v 1.3 2014/10/13 08:53:33 j_novak Exp $" ;
22
23/*
24 * $Id: ope_helmholtz_minus_2d_non_dege.C,v 1.3 2014/10/13 08:53:33 j_novak Exp $
25 * $Header: /cvsroot/Lorene/C++/Source/Ope_elementary/Ope_helmholtz_minus_2d/ope_helmholtz_minus_2d_non_dege.C,v 1.3 2014/10/13 08:53:33 j_novak Exp $
26 *
27 */
28#include <cmath>
29#include <cstdlib>
30
31#include "proto.h"
32#include "ope_elementary.h"
33
34
35 //------------------------------------
36 // Routine pour les cas non prevus --
37 //-----------------------------------
38
39namespace Lorene {
40Matrice _helmholtz_minus_2d_non_dege_pas_prevu(const Matrice &lap, int) {
41 cout << "Construction non degeneree pas prevue..." << endl ;
42 abort() ;
43 exit(-1) ;
44 return lap ;
45}
46
47
48
49 //-------------------
50 //-- R_CHEB -------
51 //--------------------
52
53Matrice _helmholtz_minus_2d_non_dege_r_cheb (const Matrice &lap, int) {
54
55
56 int n = lap.get_dim(0) ;
57
58 Matrice res(n-2, n-2) ;
59 res.set_etat_qcq() ;
60 for (int i=0 ; i<n-2 ; i++)
61 for (int j=0 ; j<n-2 ; j++)
62 res.set(i, j) = lap(i, j+2) ;
63
64 res.set_band(4, 4) ;
65 res.set_lu() ;
66
67 return res ;
68}
69
70
71 //-------------------
72 //-- R_CHEBU -----
73 //-------------------
74Matrice _helmholtz_minus_2d_non_dege_r_chebu_deux (const Matrice&) ;
75
76Matrice _helmholtz_minus_2d_non_dege_r_chebu (const Matrice &lap, int puis) {
77
78 switch (puis) {
79 case 2 :
80 return _helmholtz_minus_2d_non_dege_r_chebu_deux (lap) ;
81 default :
82 abort() ;
83 exit(-1) ;
84 return Matrice(0, 0) ;
85 }
86}
87
88
89// Cas dzpuis = 2 ;
90Matrice _helmholtz_minus_2d_non_dege_r_chebu_deux (const Matrice &lap) {
91
92 int n = lap.get_dim(0) ;
93
94 Matrice res(n-1, n-1) ;
95 res.set_etat_qcq() ;
96 for (int i=0 ;i<n-1 ; i++)
97 for (int j=0 ; j<n-1 ; j++)
98 res.set(i, j) = lap(i, j+1) ;
99 res.set_band(5, 3) ;
100 res.set_lu() ;
101
102 return res ;
103}
104
105
107 if (ope_cl == 0x0)
108 do_ope_cl() ;
109
110 if (non_dege != 0x0)
111 delete non_dege ;
112
113 // Routines de derivation
115 static int nap = 0 ;
116
117 // Premier appel
118 if (nap==0) {
119 nap = 1 ;
120 for (int i=0 ; i<MAX_BASE ; i++) {
121 helmholtz_minus_2d_non_dege[i] = _helmholtz_minus_2d_non_dege_pas_prevu ;
122 }
123 // Les routines existantes
124 helmholtz_minus_2d_non_dege[R_CHEB >> TRA_R] = _helmholtz_minus_2d_non_dege_r_cheb ;
125 helmholtz_minus_2d_non_dege[R_CHEBU >> TRA_R] = _helmholtz_minus_2d_non_dege_r_chebu ;
126 }
128}
129}
Time evolution with partial storage (*** under development ***).
Definition evolution.h:371
Matrix handling.
Definition matrice.h:152
int get_dim(int i) const
Returns the dimension of the matrix.
Definition matrice.C:260
int base_r
Radial basis of decomposition.
Matrice * ope_cl
Pointer on the banded-matrix of the operator.
Matrice * non_dege
Pointer on the non-degenerated matrix of the operator.
virtual void do_non_dege() const
Computes the non-degenerated matrix of the operator.
int dzpuis
the associated dzpuis, if in the compactified domain.
virtual void do_ope_cl() const
Computes the banded-matrix of the operator.
#define MAX_BASE
Nombre max. de bases differentes.
#define R_CHEBU
base de Chebychev ordinaire (fin), dev. en 1/r
#define TRA_R
Translation en R, used for a bitwise shift (in hex)
#define R_CHEB
base de Chebychev ordinaire (fin)
Lorene prototypes.
Definition app_hor.h:64