V8/usr/lib/ideal/lib/rect

.IS
rect {
	var ne, nw, sw, se,
	n, e, w, s, c,
	ht, wd;
	ne = se + (0,1)*ht;
	nw = sw + (0,1)*ht;
	ne = nw + wd;
	n = (ne+nw)/2;
	s = (se+sw)/2;
	e = (ne+se)/2;
	w = (nw+sw)/2;
	c = (ne+sw)/2;
	ht ~ 1;
	wd ~ 1.5;
	bdlist = ne, nw, sw, se;
	conn ne to nw to sw to se to ne;
}
.IE