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Re: IDL Error GCPC data [message #69250 is a reply to message #69249]

Thu, 24 December 2009 11:07

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

sampton writes:

> Yes I know that I'm missing a lot it's my first steeps with IDL ;)

OK, then. Expected. :-)

> As of the file name no I just want to mention that there is a binary
> data file and the real name is: gpcp_v2.1_psg.1979
> and the year extension changes from 1979 to 2009.

I don't know what you mean by 'changing the year extension',
since there is nothing like that in your code. Your code opens
the file you supply it and reads a structure out of it. If this
is what you have in mind, then the command you would use is:

IDL> read_v2_1, 'gpcp_v2.1_psg.1979', struct

This *assumes* the file is located in your current IDL directory.
Almost always a *bad* assumption, as it turns out. But we will
save that for a future lesson.

Your code then goes to a lot of trouble to do some byte swapping,
in needed. This can be MUCH more easily done by using the
SWAP_IF_*** keywords on the OPENR command. Look up the OPENR
statement in the on-line help.

> you suggested: .COMPILE do I have to include the file name in the
> path or just the command ?

If your file is named correctly, and is located somewhere in
your IDL path, then you just have to supply the "root" name
of the file:

IDL> .compile tvimage

Cheers,

David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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[Message index]

		Re: IDL Error GCPC data By: David Fanning on Tue, 29 December 2009 11:35
		Re: IDL Error GCPC data By: sampton on Tue, 29 December 2009 11:28
		Re: IDL Error GCPC data By: sampton on Fri, 25 December 2009 09:38
		Re: IDL Error GCPC data By: David Fanning on Thu, 24 December 2009 20:21
		Re: IDL Error GCPC data By: sampton on Thu, 24 December 2009 18:29
		Re: IDL Error GCPC data By: David Fanning on Thu, 24 December 2009 11:07
		Re: IDL Error GCPC data By: sampton on Thu, 24 December 2009 10:18
		Re: IDL Error GCPC data By: David Fanning on Thu, 24 December 2009 09:38
		Re: IDL Error GCPC data By: sampton on Thu, 24 December 2009 08:57
		Re: IDL Error GCPC data By: Wout De Nolf on Thu, 24 December 2009 00:59
		Re: IDL Error GCPC data By: sampton on Mon, 04 January 2010 17:13

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