Extracting Data from Plots... 
Carl, you are truly and inspiration... [When I asked about programs to
extract points from a scanned figure, Carl said, "You can do that in
IDL."]

So I wrote a simple program to do this in IDL... if you've ever
struggled with a damn ruler to extract points from a figure, do so no
longer... Behold:

http://astron.berkeley.edu/~jhall/export/extract_points.pro

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Joseph Lorenzo Hall                     jhall@astro.berkeley.edu

"Knowledge is experience. Everything else is just information."
--Albert Einstein


