Mathc initiation/a209
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kg_polfg.h |
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/* --------------------------------- */
/* save as kg_polfg.h */
/* --------------------------------- */
void G_polarg(
CTRL_splot w,
double (*P_f)(double k),
double (*P_g)(double k),
tvalue t
)
{
FILE *fp = fopen("a_main.plt","w");
fprintf(fp," reset\n"
" set size ratio -1\n"
" set polar\n"
" set grid polar lt 3\n\n"
" plot [%0.3f:%0.3f] [%0.3f:%0.3f] [%0.3f:%0.3f]\\\n"
" \"curvef\" with lines lt 7 lw 3,\\\n"
" \"curveg\" with lines lt 6 lw 3\n",
t.min,t.max,
w.xmin,w.xmax,w.ymin,w.ymax);
fclose(fp);
fp = fopen("curvef","w");
for(t.value=t.min; t.value<=t.max; t.value+=t.step)
fprintf(fp," %6.3f %6.3f\n",t.value,(*P_f)(t.value));
fprintf(fp," %6.3f %6.3f\n",t.max,(*P_f)(t.max));
fclose(fp);
fp = fopen("curveg","w");
for(t.value=t.min; t.value<=t.max; t.value+=t.step)
fprintf(fp," %6.3f %6.3f\n",t.value,(*P_g)(t.value));
fprintf(fp," %6.3f %6.3f\n",t.max,(*P_g)(t.max));
fclose(fp);
}
/* --------------------------------- */
/* --------------------------------- */