AddToDraw(x1, y1, x2, y2) int x1, y1, x2, y2;
AddToDraw(int x1, int y1, int x2, int y2)
AddToDraw(x1, y1, x2, y2)    int x1, y1, x2, y2;{	register TScreen *screen = &term->screen;	register XSegment *lp;	if(nplot >= MAX_PTS) {		TekFlush();	}	lp = line_pt++;	lp->x1 = x1 = x1 * TekScale(screen) + screen->border;	lp->y1 = y1 = (TEKHEIGHT + TEKTOPPAD - y1) * TekScale(screen) +	 screen->border;	lp->x2 = x2 = x2 * TekScale(screen) + screen->border;	lp->y2 = y2 = (TEKHEIGHT + TEKTOPPAD - y2) * TekScale(screen) +	 screen->border;	nplot++;}