LORENE
diff_xdsdx2.C
1/*
2 * Methods for the class Diff_xdsdx2
3 *
4 * (see file diff.h for documentation).
5 *
6 */
7
8/*
9 * Copyright (c) 2005 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
28char diff_xdsdx2_C[] = "$Header: /cvsroot/Lorene/C++/Source/Diff/diff_xdsdx2.C,v 1.4 2014/10/13 08:52:51 j_novak Exp $" ;
29
30/*
31 * $Id: diff_xdsdx2.C,v 1.4 2014/10/13 08:52:51 j_novak Exp $
32 * $Log: diff_xdsdx2.C,v $
33 * Revision 1.4 2014/10/13 08:52:51 j_novak
34 * Lorene classes and functions now belong to the namespace Lorene.
35 *
36 * Revision 1.3 2014/10/06 15:13:05 j_novak
37 * Modified #include directives to use c++ syntax.
38 *
39 * Revision 1.2 2007/12/11 15:28:11 jl_cornou
40 * Jacobi(0,2) polynomials partially implemented
41 *
42 * Revision 1.1 2005/01/10 16:34:52 j_novak
43 * New class for 1D mono-domain differential operators.
44 *
45 *
46 * $Header: /cvsroot/Lorene/C++/Source/Diff/diff_xdsdx2.C,v 1.4 2014/10/13 08:52:51 j_novak Exp $
47 *
48 */
49
50// C headers
51#include <cassert>
52#include <cstdlib>
53
54// Lorene headers
55#include "diff.h"
56#include "proto.h"
57
58namespace Lorene {
59void multxpun_1d(int, double**, int) ;
60
61namespace {
62 int nap = 0 ;
63 Matrice* tab[MAX_BASE*Diff::max_points] ;
64 int nr_done[Diff::max_points] ;
65}
66
67Diff_xdsdx2::Diff_xdsdx2(int base_r, int nr) : Diff(base_r, nr) {
68 initialize() ;
69 assert ((base != R_CHEBP)&&(base != R_CHEBI)) ;
70}
71
72Diff_xdsdx2::Diff_xdsdx2(const Diff_xdsdx2& diff_in) : Diff(diff_in) {
73 assert (nap != 0) ;
74 assert ((base != R_CHEBP)&&(base != R_CHEBI)) ;
75}
76
78
80 if (nap == 0) {
81 for (int i=0; i<max_points; i++) {
82 nr_done[i] = -1 ;
83 for (int j=0; j<MAX_BASE; j++)
84 tab[j*max_points+i] = 0x0 ;
85 }
86 nap = 1 ;
87 }
88 return ;
89}
90
91void Diff_xdsdx2::operator=(const Diff_xdsdx2& diff_in) {
92 assert (nap != 0) ;
93 Diff::operator=(diff_in) ;
94
95}
96
98
99 bool done = false ;
100 int indice ;
101 for (indice =0; indice<max_points; indice++) {
102 if (nr_done[indice] == npoints) {
103 if (tab[base*max_points + indice] != 0x0) done = true ;
104 break ;
105 }
106 if (nr_done[indice] == -1)
107 break ;
108 }
109 if (!done) { //The computation must be done ...
110 if (indice == max_points) {
111 cerr << "Diff_xdsdx2::get_matrice() : no space left!!" << '\n'
112 << "The value of Diff.max_points must be increased..." << endl ;
113 abort() ;
114 }
115 nr_done[indice] = npoints ;
116 tab[base*max_points + indice] = new Matrice(npoints, npoints) ;
117 Matrice& resu = *tab[base*max_points + indice] ;
118 resu.set_etat_qcq() ;
119
120 double* vect = new double[npoints] ;
121 double* cres = new double[npoints] ;
122 for (int i=0; i<npoints; i++) {
123 for (int j=0; j<npoints; j++)
124 vect[j] = 0. ;
125 vect[i] = 1. ;
126 d2sdx2_1d(npoints, &vect, base << TRA_R) ;
127 if (base == R_CHEBU) {
128 mult_xm1_1d_cheb(npoints, vect, cres) ;
129 for (int j=0; j<npoints; j++)
130 resu.set(j,i) = cres[j] ;
131 }
132 else if (base == R_JACO02) {
133 multxpun_1d(npoints, &vect, base << TRA_R) ;
134 for (int j=0; j<npoints; j++)
135 resu.set(j,i) = vect[j] ;
136 }
137 else {
138 multx_1d(npoints, &vect, base << TRA_R) ;
139 for (int j=0; j<npoints; j++)
140 resu.set(j,i) = vect[j] ;
141 }
142 }
143 delete [] vect ;
144 delete [] cres ;
145 }
146 return *tab[base*max_points + indice] ;
147}
148
149ostream& Diff_xdsdx2::operator>>(ostream& ost) const {
150
151 ost << " x d2 / dx2 " << endl ;
152
153 return ost ;
154
155}
156}
Class for the elementary differential operator (see the base class Diff ).
Definition diff.h:531
virtual ostream & operator>>(ostream &) const
Operator >> (virtual function called by the operator <<).
void initialize()
Initializes arrays.
Definition diff_xdsdx2.C:79
void operator=(const Diff_xdsdx2 &)
Assignment to another Diff_xdsdx2.
Definition diff_xdsdx2.C:91
virtual const Matrice & get_matrice() const
Returns the matrix associated with the operator.
Definition diff_xdsdx2.C:97
Diff_xdsdx2(int base_r, int nr)
Standard constructor.
Definition diff_xdsdx2.C:67
virtual ~Diff_xdsdx2()
Destructor.
Definition diff_xdsdx2.C:77
Base (abstract) class for 1D spectral differential operators in one domain.
Definition diff.h:65
int npoints
Number of coefficients.
Definition diff.h:75
void operator=(const Diff &)
Assignment to another Diff.
Definition diff.C:75
static const int max_points
Maximal number of matrices stored per base.
Definition diff.h:71
int base
Base in radial direction.
Definition diff.h:74
Matrix handling.
Definition matrice.h:152
void set_etat_qcq()
Sets the logical state to ETATQCQ (ordinary state).
Definition matrice.C:175
double & set(int j, int i)
Read/write of a particuliar element.
Definition matrice.h:277
#define MAX_BASE
Nombre max. de bases differentes.
#define R_CHEBU
base de Chebychev ordinaire (fin), dev. en 1/r
#define R_JACO02
base de Jacobi(0,2) ordinaire (finjac)
#define R_CHEBI
base de Cheb. impaire (rare) seulement
#define TRA_R
Translation en R, used for a bitwise shift (in hex)
#define R_CHEBP
base de Cheb. paire (rare) seulement
Lorene prototypes.
Definition app_hor.h:64