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Re: handling zero size file [message #52559]

Mon, 12 February 2007 14:27

Kenneth Bowman
Messages: 86
Registered: November 2006

Member

In article <eqqo6t$7u0$1@news.nems.noaa.gov>,
Spam Bob <spambob@bikinibottom.net> wrote:

> I have an idl program that I call from perl. I send the idl program two
> files (file1 and file2).
>
> PRO mentor_nf, file1, file2, loc
>
> If both files are nonzero size it runs fine plotting both (this is a two
> panel plotting program). If I'm missing some data and either file1 or
> file2 is zero size, the program bombs. I would like it to go ahead and
> plot the nonzero sized file and just leave the other panel blank.
>
> Here is where the program fails:
> DATA1 = READ_ASCII(file1, TEMPLATE=PLOTTEMPLATE)
>
> and this is the error:
> % READ_ASCII: File "/data/file1_20060322.dat" is not a valid ASCII file.
>
> I tried the MISSING_VALUE keyword but that didn't change anything.

Use FILE_INFO to check the file size before opening it.

Ken Bowman

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[Message index]

		Re: handling zero size file By: Kenneth Bowman on Mon, 12 February 2007 14:27
		Re: handling zero size file By: Spam Bob on Mon, 12 February 2007 15:09
		Re: handling zero size file By: Vince Hradil on Mon, 12 February 2007 14:33

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