st_b_spline_surf2.h

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//####//------------------------------------------------------------
//####//------------------------------------------------------------
//####//  MAGiC
//####//  Jean Christophe Cuilliere et Vincent FRANCOIS
//####//  Departement de Genie Mecanique - UQTR
//####//------------------------------------------------------------
//####//  MAGIC est un projet de recherche de l equipe ERICCA
//####//  du departement de genie mecanique de l Universite du Quebec a Trois Rivieres
//####//  http://www.uqtr.ca/ericca
//####//  http://www.uqtr.ca/
//####//------------------------------------------------------------
//####//------------------------------------------------------------
//####//
//####//       st_b_spline_surf2.h
//####//
//####//------------------------------------------------------------
//####//------------------------------------------------------------
//####//    COPYRIGHT 2000-2024
//####//  jeu 13 jun 2024 11:53:59 EDT
//####//------------------------------------------------------------
//####//------------------------------------------------------------
 
#ifndef st_b_spline_surf2H
#define st_b_spline_surf2H
 
 
 
 
#include "st_surface.h"
#include "st_point.h"
#include "ot_mathematique.h"
#include "st_ident.h"
#include <vector> // etait <vector.h>
 
 
 
 
class  ST_B_SPLINE_SURF2 : public ST_SURFACE
{
public :
    ST_B_SPLINE_SURF2(long LigneCourante,std::string idori,int bs_degre_u,int bs_degre_v,std::vector<int> bs_indexptsctr,std::vector<int> bs_knots_multiplicities_u,std::vector<int> bs_knots_multiplicities_v,std::vector<double> bs_knots_u,std::vector<double> bs_knots_v);
    ST_B_SPLINE_SURF2(int bs_degre_u,int bs_degre_v,std::vector<double> &bs_knots_u,std::vector<double> &bs_knots_v,std::vector<double> &bs_ptsctr,std::vector<double> &bs_poids,int sense);
    ~ST_B_SPLINE_SURF2();
 
 
    virtual void  evaluer(double *uv,double *xyz);
    virtual void  deriver(double *uv,double *xyzdu, double *xyzdv);
    virtual void  deriver_seconde(double *uv,double* xyzduu,double* xyzduv,double* xyzdvv,double *xyz = NULL , double *xyzdu = NULL , double *xyzdv =NULL);
    virtual void  inverser(double *uv,double *xyz,double precision=1e-6);
    virtual int inverser2(double *uv,double *xyz,int num_test, double precision);
    virtual int est_periodique_u(void);
    virtual int est_periodique_v(void);
    virtual double get_periode_u(void);
    virtual double get_periode_v(void);
 
    virtual double  get_umin(void);
    virtual double  get_umax(void);
    virtual double  get_vmin(void);
    virtual double  get_vmax(void);
    virtual void initialiser(class ST_GESTIONNAIRE* gest);
 
    virtual int get_type_geometrique(TPL_LISTE_ENTITE<double> &param);
    virtual void est_util(class ST_GESTIONNAIRE* gest);
 
 
private:
 
    virtual int  get_intervalle(int nb_point, int degre, double t, std::vector<double> &knots);
    virtual void  get_valeur_fonction(int inter, double t, int degre, std::vector<double> &knots,double *grand_n);
    virtual void  deriver_fonction(int inter,double t,int degre,int dd,std::vector<double> &knots,double *f_deriver);
    virtual void  deriver_bs_kieme(int nb_ptsctr_u,int degre_u,std::vector<double> &knots_u,int nb_ptsctr_v,int degre_v,std::vector<double> &knots_v,double u,double v,int d,OT_VECTEUR_4D *skl);
    virtual void  deriver_kieme(double *uv,int d,OT_VECTEUR_4D *skl);
    virtual void binomialCoef(double * Bin, int degre);
 
    int periodique_u;
    double periode_u;
    int periodique_v;
    double periode_v;
    int degre_u;
    int degre_v;
    int nb_ptsctr_u;
    int nb_ptsctr_v;
    int nb_point;
    std::vector<int> indexptsctr;
    std::vector<double> knots_u;
    std::vector<double> knots_v;
    std::vector<OT_VECTEUR_4D> ptsctr;
    int sens;
    double umin,umax;
    double vmin,vmax;
};
 
 
#endif