REVERSEEDGE Intervert the source and target vertices of edge.

   REV = reverseEdge(EDGE);
   Returns the opposite edge of EDGE.
   EDGE has the format [X1 Y1 X2 Y2]. The resulting edge REV has value
   [X2 Y2 X1 Y1];

   See also:
   edges2d, createEdge, reverseLine

 ------
 Author: David Legland
 e-mail: david.legland@grignon.inra.fr
 Created: 2010-05-13,    using Matlab 7.9.0.529 (R2009b)
 Copyright 2010 INRA - Cepia Software Platform.

Package: matgeom