VertexOutwardVector-example.nb
Example Cellzilla2D notebook.
GPL License applies.
See http://xlr8r.info and http://cellzilla.info for further details.
Create a tissue with a point and an edge that aren't used.
Find the outward vectors from each vertex on the boundary
figure out a good number for the length of the vector
Observe that the outward vector is nto really normal - it depends on the shape of the nearby tissue boundary.