return e;
}
else if (subdiv.isOnEdge(e, v.getCoordinate())) {
// the point lies exactly on an edge, so delete the edge
// (it will be replaced by a pair of edges which have the point as a vertex)
e = e.oPrev();
subdiv.delete(e.oNext());
}
/**
* Connect the new point to the vertices of the containing triangle