Mathc gnuplot/Application : Courbe de Bézier

Sommaire

Petit jeux sur les polygones 3

N'oubliez pas les fichiers h de la librairie.

	c00a.c

/* ------------------------------------ */
/* save as : c00a.c                     */
/* ------------------------------------ */
#include "v_a.h"
#include "y_r.h"
/* ------------------------------------ */
void duopoly(
double **U,
double **Sides,
double **Angles,
double alpha,
int    n
)
{
int a=1;
int i=1;
int c;

for(;i++<n;)
  for(c=C1;c<Angles[C_SIZE][OF];c++)
    if(a)
     {vu(U,i*(Angles[R1][c])+alpha,Sides[R1][c]);
      a=0;}
    else
      {vo(U,i*(Angles[R1][c])+alpha,Sides[R1][c]);
       a=1;}
}
/* ------------------------------------ */
int main(void)
{
double alpha  =-0;

double a[2]   ={  45.,  46.};
double s[2]   ={  140., -140.};

double **U = G_main(-1000.,1000.,-1000.,1000.);
double **A = c_a_A_mR(a,I_mR(R1,C2));
double **S = c_a_A_mR(s,I_mR(R1,C2));

   setup(U,-550, 450.);
   duopoly(U,S,A,alpha,152);

   setup(U, 500, 450.);
   duopoly(U,S,A,alpha,200);

   setup(U,-550,-500.);
   duopoly(U,S,A,alpha,275);

   setup(U, 500,-500.);
   duopoly(U,S,A,alpha,400);

   F_mR(U);

  printf("  ... load \"a_main.plt\" ... with gnuplot.\n");
  getchar(); 

  return 0;
/* ------------------------------------ */
/* ------------------------------------ */
}

Résultat dans gnuplot