Mathc gnuplot/Application : Tangente et axes x-y

Sommaire

Un flocon

N'oubliez pas les fichiers h de la librairie.

	c00a.c

/* ------------------------------------ */
/* save as : c00a.c                     */
/* ------------------------------------ */
#include "v_a.h"
#include "y_r.h"
/* ------------------------------------ */
double **fun2(double **U,
double angle,double side,double i);
int fun(double **U,
double angle,double side,double i);
/* ------------------------------------ */
int main(void)
{
double angle     =  0.;
double  side     = 100.;
double     i     =  10.;

double **U = G_main(-120.,20.,-40.,120.);

   F_mR(fun2(U,angle,side,i));

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

  return 0;
}
/* ------------------------------------ */
int fun(
double **U,
double angle,
double side,
double i
)
{
 if(i<1)
   {
    vo(U,angle,side);
    return (0);
   }

 fun(U,angle,side/3.,--i);angle+=-60;
 fun(U,angle,side/3.,--i);angle+=120;
 fun(U,angle,side/3.,--i);angle+=-60;
 fun(U,angle,side/3.,--i);

 return (0);
}
/* ------------------------------------ */
double **fun2(
double **U,
double angle,
double side,
double i
)
{
int j;

  for(j=3; j>0; --j)
     {
      angle+=120;fun(U,angle,side,i);
     }

 return(U);
}
/* ------------------------------------ */
/* ------------------------------------ */

Résultat dans gnuplot