eq_vel_pot.cpp

/*
    Copyright 2019 Philippe Grandclement
 
    This file is part of Kadath.
 
    Kadath 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 3 of the License, or
    (at your option) any later version.
 
    Kadath 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 Kadath.  If not, see <http://www.gnu.org/licenses/>.
*/
 
#include "system_of_eqs.hpp"
#include "ope_eq.hpp"
#include "term_eq.hpp"
#include "scalar.hpp"
#include "tensor_impl.hpp"
namespace Kadath {
Eq_vel_pot::Eq_vel_pot(const Domain* zedom, int dd, int ord, Ope_eq* so, Ope_eq* constant) : Equation(zedom, dd, 2), order(ord) {
    parts[0] = so ;
    parts[1] = constant ;
}
 
Eq_vel_pot::~Eq_vel_pot() {
}
 
void Eq_vel_pot::export_val (int& conte, Term_eq** residus, Array<double>& sec, int& pos_res) const {
    
    assert (residus[conte]->get_type_data()==TERM_T) ;
    assert (residus[conte]->get_val_t().get_valence()==0) ; //only defined for a scalar field so far
    
    assert (residus[conte+1]->get_type_data()==TERM_T) ;
    assert (residus[conte+1]->get_val_t().get_valence()==0) ; 
 
    int old_pos = pos_res ;
 
    dom->export_tau (residus[conte]->get_val_t(), ndom, order, sec, pos_res, *n_cond) ;
    
    // Get the first coef (a bit long probably but anyway...)
    Array<double> auxi (pos_res - old_pos) ;
    auxi = 0. ;
    int zero = 0 ;
    dom->export_tau(residus[conte+1]->get_val_t(), ndom, order, auxi, zero, *n_cond) ;
    
    // Put the coef in the right place 
    sec.set(old_pos) = auxi(0) ;
 
    conte += 2 ;
}
 
void Eq_vel_pot::export_der (int& conte, Term_eq** residus, Array<double>& sec, int& pos_res) const {
    
    assert (residus[conte]->get_type_data()==TERM_T) ;
    assert (residus[conte]->get_der_t().get_valence()==0) ; //only defined for a scalar field so far
    
    assert (residus[conte+1]->get_type_data()==TERM_T) ;
    assert (residus[conte+1]->get_der_t().get_valence()==0) ; 
 
    int old_pos = pos_res ;
 
    dom->export_tau (residus[conte]->get_der_t(), ndom, order, sec, pos_res, *n_cond) ;
    
    // Get the first coef (a bit long probably but anyway...)
    Array<double> auxi (pos_res - old_pos) ;
    auxi = 0. ;
    int zero = 0 ;
    dom->export_tau(residus[conte+1]->get_der_t(), ndom, order, auxi, zero, *n_cond) ;
    
    // Put the coef in the right place 
    sec.set(old_pos) = auxi(0) ;
 
    
    conte +=2  ;
}
 
Array<int> Eq_vel_pot::do_nbr_conditions (const Tensor& tt)  const {
    return dom->nbr_conditions (tt, ndom, order) ;
}
 
bool Eq_vel_pot::take_into_account (int target) const {
    if (target == ndom)
        return true ;
    else 
        return false ;
}
 
}