valeur_mult_x.C

/*
 * Computation of x*Id
 *
 * for:
 *   - Valeur
 *   - Mtbl_cf
 */

/*
 *   Copyright (c) 1999-2001 Jerome Novak
 *   Copyright (c) 1999-2001 Eric Gourgoulhon
 *
 *   This file is part of LORENE.
 *
 *   LORENE is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   LORENE is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with LORENE; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */


 

/*
 * $Id: valeur_mult_x.C,v 1.8 2023/05/24 09:52:02 g_servignat Exp $
 * $Log: valeur_mult_x.C,v $
 * Revision 1.8  2023/05/24 09:52:02  g_servignat
 * Added multiplication by \xi in a given shell, and dealiasing product in angular direction only
 *
 * Revision 1.7  2016/12/05 16:18:21  j_novak
 * Suppression of some global variables (file names, loch, ...) to prevent redefinitions
 *
 * Revision 1.6  2015/03/05 08:49:33  j_novak
 * Implemented operators with Legendre bases.
 *
 * Revision 1.5  2014/10/13 08:53:50  j_novak
 * Lorene classes and functions now belong to the namespace Lorene.
 *
 * Revision 1.4  2014/10/06 15:13:24  j_novak
 * Modified #include directives to use c++ syntax.
 *
 * Revision 1.3  2008/08/27 08:52:55  jl_cornou
 * Added Jacobi(0,2) polynomials case
 *
 * Revision 1.2  2004/11/23 15:17:19  m_forot
 * Added the bases for the cases without any equatorial symmetry
 *  (T_COSSIN_C, T_COSSIN_S, T_LEG, R_CHEBPI_P, R_CHEBPI_I).
 *
 * Revision 1.1.1.1  2001/11/20 15:19:27  e_gourgoulhon
 * LORENE
 *
 * Revision 1.5  1999/11/30  12:45:07  eric
 * Valeur::base est desormais du type Base_val et non plus Base_val*.
 *
 * Revision 1.4  1999/11/24  09:34:16  eric
 * Modif commentaires.
 *
 * Revision 1.3  1999/11/23  16:18:04  eric
 * Reorganisation du calcul dans le cas ETATZERO.
 *
 * Revision 1.2  1999/11/19  09:31:21  eric
 * La valeur de retour est desormais const Valeur &.
 *
 * Revision 1.1  1999/11/16  13:37:24  novak
 * Initial revision
 *
 *
 * $Header: /cvsroot/Lorene/C++/Source/Valeur/valeur_mult_x.C,v 1.8 2023/05/24 09:52:02 g_servignat Exp $
 *
 */

// Headers C
#include <cassert>

// Headers Lorene
#include "mtbl_cf.h"
#include "valeur.h"

// Local prototypes
namespace Lorene {
void _mult_x_pas_prevu(Tbl *, int &) ;
void _mult_x_r_chebp(Tbl *, int &) ;
void _mult_x_r_chebi(Tbl *, int &) ;
void _mult_x_r_chebpim_p(Tbl *, int &) ;
void _mult_x_r_chebpim_i(Tbl *, int &) ;
void _mult_xm1_cheb(Tbl *, int&) ;
void _mult_x_identite (Tbl *, int &) ;
void _mult_x_r_chebpi_p(Tbl *, int &) ;
void _mult_x_r_chebpi_i(Tbl *, int &) ;
void _mult_x_r_jaco02(Tbl *, int &) ;
void _mult_x_r_legp(Tbl *, int &) ;
void _mult_x_r_legi(Tbl *, int &) ;
void _mult_x_r_cheb(Tbl *, int &) ;

// Version membre d'un Valeur
// --------------------------

const Valeur& Valeur::mult_x() const {

    // Protection
    assert(etat != ETATNONDEF) ;

    // Peut-etre rien a faire ?
    if (p_mult_x != 0x0) {
    return *p_mult_x ;
    }
    
    // ... si, il faut bosser

    p_mult_x = new Valeur(mg) ;

    if (etat == ETATZERO) {
    p_mult_x->set_etat_zero() ; 
    }
    else {
    assert(etat == ETATQCQ) ; 
    p_mult_x->set_etat_cf_qcq() ;
    Mtbl_cf* cfp = p_mult_x->c_cf ; // Pointeur sur le Mtbl_cf qui vient d'etre
                    // cree par le set_etat_cf_qcq()

    // Initialisation de *cfp : recopie des coef. de la fonction
    if (c_cf == 0x0) {
        coef() ;
    }
    *cfp = *c_cf ;  
 
    cfp->mult_x() ; // calcul 
    
    p_mult_x->base = cfp->base ; // On remonte la base de sortie au niveau Valeur
    }

   // Termine
    return *p_mult_x ;
}



// Version membre d'un Mtbl_cf
// ---------------------------

void Mtbl_cf::mult_x() {

// Routines de derivation
static void (*_mult_x[MAX_BASE])(Tbl *, int &) ;
static int nap = 0 ;

    // Premier appel
    if (nap==0) {
    nap = 1 ;
    for (int i=0 ; i<MAX_BASE ; i++) {
        _mult_x[i] = _mult_x_pas_prevu ;
    }
    // Les routines existantes
    _mult_x[R_CHEB >> TRA_R] = _mult_x_identite ;
    _mult_x[R_CHEBU >> TRA_R] = _mult_xm1_cheb ;
    _mult_x[R_CHEBP >> TRA_R] = _mult_x_r_chebp ;
    _mult_x[R_CHEBI >> TRA_R] = _mult_x_r_chebi ;
    _mult_x[R_CHEBPIM_P >> TRA_R] = _mult_x_r_chebpim_p ;
    _mult_x[R_CHEBPIM_I >> TRA_R] = _mult_x_r_chebpim_i ;
    _mult_x[R_CHEBPI_P >> TRA_R] = _mult_x_r_chebpi_p ;
    _mult_x[R_CHEBPI_I >> TRA_R] = _mult_x_r_chebpi_i ;
    _mult_x[R_JACO02 >> TRA_R] = _mult_x_r_jaco02 ;
    _mult_x[R_LEG >> TRA_R] = _mult_x_identite ;
    _mult_x[R_LEGP >> TRA_R] = _mult_x_r_legp ;
    _mult_x[R_LEGI >> TRA_R] = _mult_x_r_legi ;
    }

    // Debut de la routine 

    // Protection
    assert(etat == ETATQCQ) ;
    
    // Boucle sur les zones
    int base_r ;
    for (int l=0 ; l<nzone ; l++) {
    base_r = (base.b[l] & MSQ_R) >> TRA_R ;
    assert(t[l] != 0x0) ;
    _mult_x[base_r](t[l], base.b[l]) ;
    }
}

void Valeur::mult_x_shell(int lz) {

    // Peut-etre ne rien faire ?
    if (etat==ETATZERO) {
    return ; 
    }

    assert(etat==ETATQCQ) ; 

    // Calcul des coef.
    coef() ;
    
    // La multiplication
    c_cf->mult_x_shell(lz) ;
    set_etat_cf_qcq() ;

    base = c_cf->base ; // On remonte la base de sortie au niveau Valeur
    
}

/*
 * Fonction membre de la classe Mtbl_cf pour la multiplication par x
 * dans une coquille applique a this
 *
 */

void Mtbl_cf::mult_x_shell(int lz)     
{

  if (mg->get_type_r(lz) != FIN) {
    cerr << "Mtbl_cf::mult_xp1_shell() : not called on a shell!" << endl ;
    abort() ;
  }
  
  // Peut-etre ne rien faire ?
  if (etat==ETATZERO) {
    return ; 
  }

  assert(etat==ETATQCQ) ; 

  _mult_x_r_cheb(t[lz], base.b[lz]) ;
    
}

}