| IDL Save File Mystery [message #69446] |
Thu, 07 January 2010 20:08 |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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Folks,
Here is our first mystery for 2010. Consider the following
IDL procedure:
Pro testobjview
s = obj_New('IDLgrtext', 'This is some text')
xobjview, s
END
Starting in a fresh IDL session, I execute the following
code as a batch file.
;******************************************************
.compile testobjview
Resolve_All, CLASS=['IDLExobjviewwid',$
'IDLExViewGroup', $
'IDLExObjView', $
'IDLExinscribingview', $
'IDLgrText']
IRESOLVE
Save, FILE='C:\IDL\testobjview.sav', /ROUTINES
;*****************************************************
I now exit IDL and drag the save file to the IDL
Virtual Machine. It doesn't run. Tells me to contact
the author of the program. Unfortunately, he is still
drinking rum and cokes in the Bahamas. :-(
I now start up IDL and restore the save file and run
it:
IDL> Restore, '='C:\IDL\testobjview.sav'
IDL> testobjview
It runs perfectly and nothing else is compiled in this
new IDL session.
Now, I do the very same thing as before, except this time
in the batch file I actually call TextObjView instead of
compiling it:
;******************************************************
testobjview
Resolve_All, CLASS=['IDLExobjviewwid',$
'IDLExViewGroup', $
'IDLExObjView', $
'IDLExinscribingview', $
'IDLgrText']
IRESOLVE
Save, FILE='C:\IDL\testobjview.sav', /ROUTINES
;*****************************************************
This time, when I exit IDL and drag the save file to the
Virtual Machine, it runs perfectly.
What in the world is going on here!? My theory, obviously,
is that something is *not* getting compiled. But, what!?
Cheers,
David
P.S. Those of you who try this in a version of IDL that is
*not* 7.1 will need to substitute "ITRESOLVE" for "IRESOLVE".
The routine has been renamed in IDL 7.1.
--
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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