| Re: how to create an upgradeable txt or other file as output [message #38728] |
Fri, 26 March 2004 10:02 |
Craig Markwardt
Messages: 1869
Registered: November 1996
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Senior Member |
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Thomas Nehls <thomas.nehls@tu-berlin.de> writes:
> Hi,
>
> sorry for that:
>
> I created a procedure to compute some calculations on images which
> returns results (string array, number - however: no images)
> Now I want to use this procedure for around 40 -100 images.
> As one part of this procedure, the result should be written into a file.
> After the next image has been computed the according results should also
> be written into the same file, but - of course- nothing old text should
> be erased.
>
> Any idea where to look for such?
Yes. OPENW, (with /GET_LUN), PRINTF, and FREE_LUN are what you should
use to write to files. To preserve the values in memory, you could
keep track of each image separately by having a string array for the
string result, and a numerical array for the numerical result.
Craig
--
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Craig B. Markwardt, Ph.D. EMAIL: craigmnet@REMOVEcow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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| Re: how to create an upgradeable txt or other file as output [message #38747 is a reply to message #38728] |
Fri, 26 March 2004 05:33  |
Ken Knapp
Messages: 14
Registered: April 2003
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Junior Member |
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Not sure I understand the whole problem, but APPEND keyword to open
should help. This opens a file for writing [without deleting it] and
just appends the file with the new info.
Hope this helps-
-Ken
Thomas Nehls wrote:
> Hi,
>
> sorry for that:
>
> I created a procedure to compute some calculations on images which
> returns results (string array, number - however: no images)
> Now I want to use this procedure for around 40 -100 images.
> As one part of this procedure, the result should be written into a file.
> After the next image has been computed the according results should also
> be written into the same file, but - of course- nothing old text should
> be erased.
>
> Any idea where to look for such?
> Thank you in advance
> Tom
>
--
***** to reply remove the _REMOVE_ *****
Ken Knapp Ken.Knapp@_REMOVE_noaa.gov
Remote Sensing and Applications Division
National Climatic Data Center
151 Patton Ave
Asheville, NC 28806
828-271-4339 (voice) 828-271-4328 (fax)
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