Mathc initiation/Fichiers h : c28a8

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	kg_curv2d.h

/* --------------------------------- */
/* save as kg_curv2d.h               */
/* --------------------------------- */
void G_Curve_2d(
CTRL_splot w,
double (*P_f)(double t),
double (*P_g)(double t),
tvalue t
)
{
FILE *fp = fopen("a_main.plt","w");

  fprintf(fp," set size ratio -1\n" 
             " set zeroaxis lt 8\n" 
             " set grid\n\n" 
             " plot [%0.3f:%0.3f] [%0.3f:%0.3f]\\\n" 
             " \"a_curve\"     with linespoints lt  6,\\\n" 
             " \"a_vector\"    with linespoints lt 16 lw 3\n",
               w.xmin,w.xmax,w.ymin,w.ymax);
  fclose(fp);

  fp = fopen("a_vector","w");
       fprintf(fp,"  0  0   \n %6.5f  %6.5f  \n\n",
              (*P_f)(t.value),(*P_g)(t.value));
       fclose(fp);

  fp = fopen("a_curve","w");
       for(t.value=t.min; t.value<t.max; t.value+=t.step)
           fprintf(fp," %6.3f  %6.3f\n", 
                  (*P_f)(t.value), (*P_g)(t.value));    
       fclose(fp);
}
/* --------------------------------- */
/* --------------------------------- */