/**
* Create a new edge (i.e. a segment)
*
* @param orig origin of the segment
* @param dest end of the segment
* @return the QuadEdge of the origin point
*/
public static QuadEdge makeEdge(Point orig, Point dest) {
QuadEdge q0 = new QuadEdge(null, null, orig);
QuadEdge q1 = new QuadEdge(null, null, null);
QuadEdge q2 = new QuadEdge(null, null, dest);
QuadEdge q3 = new QuadEdge(null, null, null);
// create the segment
q0.onext = q0;
q2.onext = q2; // lonely segment: no "next" quadedge
q1.onext = q3;
q3.onext = q1; // in the dual: 2 communicating facets
// dual switch
q0.rot = q1;
q1.rot = q2;
q2.rot = q3;
q3.rot = q0;
return q0;
}
/** @return the symetric (reverse) QuadEdge */
public QuadEdge sym() {
return rot.rot();
}
