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Re: Recovery from PostScript file [message #18428 is a reply to message #18427]

Wed, 12 January 2000 00:00

cjengo
Messages: 28
Registered: June 1999

Junior Member

In article <85ib48$h5n$1@jura.cc.ic.ac.uk>,
"Chris Roberts" <c.roberts1@ic.ac.uk> wrote:
> I have a user who generated a PostScript file of his IDL data as a
graph,
> and has now lost his data file. Is there anything sensible I can do
to help
> him recover some of the data from the PostScript file?
>
> Thanks.
>
>

First thing that comes to my mind is to convert the postscript file to
a tiff, read it into an array, then scan each column from the bottom
until the x-axis is reached, then count pixels until the data plot is
reached. Of course you'd have to account for axis labels and so forth,
but you could mask those out in an IP program before rasterizing it.
That also wouldn't get the actual data values back, but at least the
shape of the curve is better than nothing.

Chris
--
_______________________________________
Chris Jengo - Senior Imaging Scientist
Earth Satellite Corp. - Rockville, MD
cjengo@earthsat.com

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[Message index]

		Re: Recovery from PostScript file By: Liam E. Gumley on Wed, 12 January 2000 00:00
		Re: Recovery from PostScript file By: cjengo on Wed, 12 January 2000 00:00
		Re: Recovery from PostScript file By: davidf on Wed, 12 January 2000 00:00

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