| Re: how to clear error message [message #73271 is a reply to message #73270] |
Wed, 03 November 2010 19:24   |
Truong Le
Messages: 42
Registered: September 2010
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Member |
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On Nov 3, 9:44 pm, David Fanning <n...@dfanning.com> wrote:
> Truong Le writes:
>> David, I am not trying to suppress the error but instead I am
>> trying to catch that error so that I can exit my loop and read the
>> next FITS file.
>
> Yes, and several people have suggested a CATCH error
> handler, which to almost everyone responding here
> would seem to be *exactly* what you want to use.
> So, what is the problem?
>
> Is the problem that the "message" is an informational
> message and not really an error?
>
> We really need more details I guess, if we are going
> to help in any sensible way. It doesn't help us to know
> something "didn't work." That's almost always an excuse
> for pilot error. :-)
>
> 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.")
okay, let's say I have 100 FITS files that I want to loop through to
check certain
keywords from each FITS file. To obtain the header keywords I use the
headfits.pro
from the Astronomy IDL's library. When one of the FITS file is badly
formatted headfit
spat out a run-on warning message "% MRD_HREAD: Warning-Invalid
characters in header" and
then eventually die. I want to be able to catch this error and move on
reading the next
FITS file. The problem that I am having is that I use the "Catch"
error handler to catch
this error as people have suggested but it doesn't work. I have read
some of your other
thread that talk about trapping error by using
files = ['file1.fits', 'file2.fits', 'file3.fits', ....]
for i=0,100 do begin
header = headfit(files[i])
Help, /Last_Message, Output=theErrorMessage
errorLength = N_ELEMENTS(theErrorMessage)
if (errorLength GT 0) then begin
goto, jumptoendOFloop
endif
....
....
....
jumptoendOfloop
endfor
This will trap the error of the bad FITS file, however, I need to know
how I can clear
the "errors" that are in memory so that in my next loop with a good
FITS file I will pass
through the above example.
and thank you for all the help guys!
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