/**
* Compares this object with the specified object for order. Uses the standard lexicographic
* ordering for the points in the LineSegment.
*
* @param o the <code>LineSegment</code> with which this <code>LineSegment</code> is being
* compared
* @return a negative integer, zero, or a positive integer as this <code>LineSegment</code> is
* less than, equal to, or greater than the specified <code>LineSegment</code>
*/
public int compareTo(Object o) {
LineSegment other = (LineSegment) o;
int comp0 = p0.compareTo(other.p0);
if (comp0 != 0) return comp0;
return p1.compareTo(other.p1);
}
/**
* Puts the line segment into a normalized form. This is useful for using line segments in maps
* and indexes when topological equality rather than exact equality is desired. A segment in
* normalized form has the first point smaller than the second (according to the standard ordering
* on {@link Coordinate}).
*/
public void normalize() {
if (p1.compareTo(p0) < 0) reverse();
}