LORENE
ope_helmholtz_minus_pseudo_1d_cl.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_pseudo_1d_cl_C[] = "$Header: /cvsroot/Lorene/C++/Source/Ope_elementary/Ope_helmholtz_minus_pseudo_1d/ope_helmholtz_minus_pseudo_1d_cl.C,v 1.3 2014/10/13 08:53:33 j_novak Exp $" ;
22
23/*
24 * $Id: ope_helmholtz_minus_pseudo_1d_cl.C,v 1.3 2014/10/13 08:53:33 j_novak Exp $
25 * $Header: /cvsroot/Lorene/C++/Source/Ope_elementary/Ope_helmholtz_minus_pseudo_1d/ope_helmholtz_minus_pseudo_1d_cl.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// Version Matrice --> Matrice
35namespace Lorene {
36Matrice _cl_helmholtz_minus_pseudo_1d_pas_prevu (const Matrice & source, int) {
37 cout << "Combinaison lineaire pas prevue..." << endl ;
38 abort() ;
39 exit(-1) ;
40 return source;
41}
42
43
44 //-------------------
45 //-- R_CHEBU -----
46 //-------------------
47
48Matrice _cl_helmholtz_minus_pseudo_1d_r_chebu_deux (const Matrice&) ;
49
50
51Matrice _cl_helmholtz_minus_pseudo_1d_r_chebu (const Matrice &source, int puis) {
52 int n = source.get_dim(0) ;
53 assert (n == source.get_dim(1)) ;
54
55 Matrice res(n, n) ;
56 res.set_etat_qcq() ;
57
58 switch (puis) {
59 case 2 :
60 res = _cl_helmholtz_minus_pseudo_1d_r_chebu_deux(source) ;
61 break ;
62 default :
63 abort() ;
64 exit(-1) ;
65 }
66
67 return res ;
68}
69
70
71//Cas dzpuis == 2
72Matrice _cl_helmholtz_minus_pseudo_1d_r_chebu_deux (const Matrice &source) {
73
74 int n = source.get_dim(0) ;
75 assert (n == source.get_dim(1)) ;
76
77 Matrice barre(source) ;
78 int dirac = 1 ;
79 for (int i=0 ; i<n-2 ; i++) {
80 for (int j=0 ; j<n ; j++)
81 barre.set(i, j) = ((1+dirac)*source(i, j)-source(i+2, j)) ;
82 if (i==0) dirac = 0 ;
83 }
84
85 Matrice tilde(barre) ;
86 for (int i=0 ; i<n-4 ; i++)
87 for (int j=0 ; j<n ; j++)
88 tilde.set(i, j) = (barre(i, j)-barre(i+2, j)) ;
89
90 Matrice bis(tilde) ;
91 for (int i=0 ; i<n-4 ; i++)
92 for (int j=0 ; j<n ; j++)
93 bis.set(i, j) = (tilde(i, j)+tilde(i+1, j)) ;
94
95 Matrice res (bis) ;
96 for (int i=0 ; i<n-4 ; i++)
97 for (int j=0 ; j<n ; j++)
98 res.set(i, j) = (bis(i, j)-bis(i+1, j)) ;
99
100
101
102 return res ;
103}
104
106 if (ope_mat == 0x0)
107 do_ope_mat() ;
108
109 if (ope_cl != 0x0)
110 delete ope_cl ;
111
112 // Routines de derivation
113 static Matrice (*cl_helmholtz_minus_pseudo_1d[MAX_BASE])(const Matrice&, int);
114 static int nap = 0 ;
115
116 // Premier appel
117 if (nap==0) {
118 nap = 1 ;
119 for (int i=0 ; i<MAX_BASE ; i++) {
120 cl_helmholtz_minus_pseudo_1d[i] = _cl_helmholtz_minus_pseudo_1d_pas_prevu ;
121 }
122 // Les routines existantes
123 cl_helmholtz_minus_pseudo_1d[R_CHEBU >> TRA_R] = _cl_helmholtz_minus_pseudo_1d_r_chebu ;
124 }
125 ope_cl = new Matrice(cl_helmholtz_minus_pseudo_1d[base_r](*ope_mat, dzpuis)) ;
126}
127
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
Matrice * ope_mat
Pointer on the matrix representation of the operator.
int base_r
Radial basis of decomposition.
Matrice * ope_cl
Pointer on the banded-matrix of the operator.
virtual void do_ope_cl() const
Computes the banded-matrix of the operator.
virtual void do_ope_mat() const
Computes the matrix of the operator.
int dzpuis
the associated dzpuis, if in the compactified domain.
#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)
Lorene prototypes.
Definition app_hor.h:64