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Re: fits_help issues again/still [message #67422 is a reply to message #67421]

Thu, 23 July 2009 15:13

penteado
Messages: 866
Registered: February 2018

Senior Member
Administrator

On Jul 23, 6:00 pm, David Fanning <n...@dfanning.com> wrote:
> Barbara writes:
>> this is what it tells me:
>
>> % FITS_OPEN: ERROR: OPENR: Error opening file. Unit: 100
>> File: C:\Documents and Settings\kerri_2\Desktop
>> \medvar_IDL_
>> stuff\spec6sep080079.a.fits
>> % Expression must be a structure in this context: FCB.
>> % Execution halted at: FITS_HELP 62 C:\Documents and
>> Settings\kerri_2\Desktop\Course_Files\astrolib\pro\fits
>> \fits_help.pro
>> % $MAIN$
>

That indicates that the error in line 62 is only a consequence of the
first error (not being able to open the file). That is the source of
the problem. What it is trying to open is C:\Documents and Settings
\kerri_2\Desktop\medvar_IDL_ stuff
\spec6sep080079.a.fits

Which may not be where the file is, as David mentioned, if a relative
filename was used. Some program you used might have changed your
current directory, and it also might have happened when a file was
opened in the editor, if the preference "change directory on file
open" is enabled.

Besides returning to the main level, as David suggested, in that sort
of situation (something worked 10 minutes before) sometimes it is
useful to reset the IDL session (.reset_session,
or .full_reset_session), which is a almost equivalent to exiting and
restarting IDL.

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[Message index]

		Re: fits_help issues again/still By: penteado on Thu, 23 July 2009 15:22
		Re: fits_help issues again/still By: penteado on Thu, 23 July 2009 15:13
		Re: fits_help issues again/still By: David Fanning on Thu, 23 July 2009 14:43
		Re: fits_help issues again/still By: David Fanning on Thu, 23 July 2009 14:22
		Re: fits_help issues again/still By: Barbara on Thu, 23 July 2009 14:18
		Re: fits_help issues again/still By: Barbara on Thu, 23 July 2009 14:07
		Re: fits_help issues again/still By: David Fanning on Thu, 23 July 2009 14:00
		Re: fits_help issues again/still By: Barbara on Thu, 23 July 2009 13:43
		Re: fits_help issues again/still By: David Fanning on Thu, 23 July 2009 13:41

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