public boolean intersects(Coordinate p0, Coordinate p1) { Envelope segEnv = new Envelope(p0, p1); if (!rectEnv.intersects(segEnv)) return false; li.computeIntersection(p0, p1, corner[0], corner[1]); if (li.hasIntersection()) return true; li.computeIntersection(p0, p1, corner[1], corner[2]); if (li.hasIntersection()) return true; li.computeIntersection(p0, p1, corner[2], corner[3]); if (li.hasIntersection()) return true; li.computeIntersection(p0, p1, corner[3], corner[0]); if (li.hasIntersection()) return true; return false; }