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Re: Retrieving variables from a subroutine [message #52629 is a reply to message #52615]

Mon, 19 February 2007 07:22

Kenneth P. Bowman
Messages: 585
Registered: May 2000

Senior Member

In article <ercbpk$res$1@south.jnrs.ja.net>,
Andy Heaps <a.j.heaps@reading.ac.uk> wrote:

> Does anyone know of any IDL magic that could be used to have a single
> procedural (or other) call, and then somehow end up with the NetCDF
> variables extracted back in the the calling procedure?

I think structures really are the best way to do this. I generally
use a function rather than a procedure, so it is called like this

data = READ_SAT_DAT(input)

where input is a file name or date, depending on the application.

READ_SAT_DATA packages all of the info from the file into an
anonymous structure.

It is not too difficult to get undergrads to understand, for example,
that

data.longitude

contains the longitudes of the satellite fields of view,

data.values

contains the radiances or retrieved quantities, etc.

The structure makes it easy to include the data and all of the
ancillary information (units, long names, etc.) in a single package.

Ken Bowman

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[Message index]

		Re: Retrieving variables from a subroutine By: Andy Heaps on Wed, 21 February 2007 05:48
		Re: Retrieving variables from a subroutine By: Paul Van Delst[1] on Tue, 20 February 2007 08:51
		Re: Retrieving variables from a subroutine By: Kenneth P. Bowman on Mon, 19 February 2007 07:22
		Re: Retrieving variables from a subroutine By: David Fanning on Mon, 19 February 2007 07:23

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