#include "pen.h" frame(xs, ys, xf, yf) double xs, ys, xf, yf; { e1->p1x = e0->p1x+(xs*DX); e1->p1y = e0->p1y+(ys*DY); e1->p2x = e0->p1x+(xf*DX); e1->p2y = e0->p1y+(yf*DY); fprintf(pltout,"IP %8.2f,%8.2f %8.2f,%8.2f\n", e1->p1x,e1->p1y, e1->p2x,e1->p2y); fprintf(pltout,"SC %8.2f,%8.2f,%8.2f,%8.2f\n", e1->xmin,e1->xmax,e1->ymin,e1->ymax); ckerr(0); }