127 lines
5.2 KiB
C
127 lines
5.2 KiB
C
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// This file is part of the Herezh++ application.
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//
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// The finite element software Herezh++ is dedicated to the field
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// of mechanics for large transformations of solid structures.
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// It is developed by Gérard Rio (APP: IDDN.FR.010.0106078.000.R.P.2006.035.20600)
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// INSTITUT DE RECHERCHE DUPUY DE LÔME (IRDL) <https://www.irdl.fr/>.
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//
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// Herezh++ is distributed under GPL 3 license ou ultérieure.
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//
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// Copyright (C) 1997-2021 Université Bretagne Sud (France)
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// AUTHOR : Gérard Rio
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// E-MAIL : gerardrio56@free.fr
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License,
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// or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty
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// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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// See the GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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//
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// For more information, please consult: <https://herezh.irdl.fr/>.
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/************************************************************************
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* DATE: 19/01/2007 *
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* $ *
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* AUTEUR: G RIO (mailto:gerardrio56@free.fr) *
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* $ *
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* PROJET: Herezh++ *
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* $ *
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************************************************************************
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* BUT: Def géométrie d'une sphere: un centre et un rayon *
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* $ *
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* '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' * *
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* VERIFICATION: *
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* *
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* ! date ! auteur ! but ! *
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* ------------------------------------------------------------ *
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* ! ! ! ! *
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* $ *
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* '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' *
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* MODIFICATIONS: *
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* ! date ! auteur ! but ! *
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* ------------------------------------------------------------ *
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* $ *
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************************************************************************/
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#ifndef SPHEREE_H
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#define SPHEREE_H
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#include "Droite.h"
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#include "Coordonnee.h"
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/// @addtogroup Groupe_sur_les_contacts
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/// @{
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///
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class Sphere
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{ // surcharge de l'operator de lecture
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friend istream & operator >> (istream &, Sphere &);
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// surcharge de l'operator d'ecriture
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friend ostream & operator << (ostream &, const Sphere &);
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public :
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// CONSTRUCTEURS :
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// par defaut
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Sphere ();
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// avec les datas
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Sphere ( const Coordonnee& B, const double& r);
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// avec la dimension
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Sphere (int dim);
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// de copie
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Sphere ( const Sphere& a);
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// DESTRUCTEUR :
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~Sphere ();
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// surcharge des operator
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Sphere& operator = ( const Sphere & P);
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// METHODES PUBLIQUES :
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// retourne le centre de la Sphere
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inline const Coordonnee& CentreSphere() const { return centre;};
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// retourne le rayon de la sphere
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inline double RayonSphere() const { return rayon;};
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// change le centre de la sphere
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void Change_centre( const Coordonnee& B);
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// change le rayon de la sphere
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void Change_rayon( const double & r);
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// change toutes les donnees
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void change_donnees( const Coordonnee& B, const double& r);
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// calcul les deux intercections M1 et M2 d'une droite avec la sphere,
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// ramene 0 s'il n'y a pas d'intersection, ramene -1 si l'intercection
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// ne peut pas etre calculee
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// et 1 s'il y a deux points d'intercection
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int Intersection( const Droite & D,Coordonnee& M1, Coordonnee& M2);
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// calcul la distance d'un point à la sphere
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double Distance_a_sphere(const Coordonnee& M) const;
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// ramène true si le point est à l'intérieur de la sphère, false sinon
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bool Dedans(const Coordonnee& M)const
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{ return ((centre - M).Norme() < rayon);};
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// projection d'un point M sur la parois de la sphère
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// dans le cas où M = le centre de la sphère, la projection n'est pas
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// possible, dans ce cas projection_ok = false en retour, sinon true
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Coordonnee Projete(const Coordonnee& M,bool& projection_ok) const;
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protected :
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// VARIABLES PROTEGEES :
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Coordonnee centre; // centre de la sphere
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double rayon; // rayon de la sphère
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// METHODES PROTEGEES :
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};
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/// @} // end of group
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#endif
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