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Repost of Vertex question...

       (This is the same as my last post, but with a smaller image size
and up-todate email contact
        Sorry for the confusion.)

      I have images of polygons connected edge to edge in a
quasiperiodic array, like the one I
      have attached to this message...
      The images are black and white and the edges of the polygons are
distinguisable because
      they are straight lines.
      I would love to be able to use IDL to find the vertices in this
      Essentially this will give me all the corners in the image.  Is
there a
      function in IDL that does such a thing (find intersections or
      Thanks for your time...

PNG image