comp.lang.idl-pvwave archive: archive » Re: question on destroying objarr's

Home » Public Forums » archive » Re: question on destroying objarr's

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: question on destroying objarr's [message #62064 is a reply to message #62063]

Tue, 19 August 2008 11:57

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

cgoethel@igpp.ucla.edu writes:

> Does anyone have a simple example of how to create, populate, and
> destroy an objarr? I can create and populate (in a clumsy way) but
> then I am cannot get rid of it using OBJ_DESTROY.
>
> Thanks! Cindy
>
> EX:
>
> myObjArr=OBJARR(3)
> myObjArr[0]=someObj
> OBJ_DESTROY, myObjArr
>
> help, myObjArr
> MYOBJARR OBJREF = Array[3] (it's still there - why?)

Well, it's still there in the sense that variable myObjArr
is still listed as having been previously defined as
*something* in the IDL session. But all the objects in
that object array are null objects. You can't use them
for anything. They don't point to anything. They are not
taking up any space on the heap. Etc.

In other words, you are in great shape! :-)

If you want to get rid of it entirely, you will have to
do something like this:

IDL> myObjArr=OBJARR(3)
IDL> myObjArr[0]=Obj_New('idlanroi')
IDL> OBJ_DESTROY, myObjArr
IDL> Undefine, myObjArr
IDL> Help, myObjArr
MYOBJARR UNDEFINED = <Undefined>

You can find UNDEFINE here:

http://www.dfanning.com/programs/undefine.pro

Just don't undefine before you destroy!!!

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.")

Report message to a moderator

[Message index]

		Re: question on destroying objarr's By: David Fanning on Tue, 19 August 2008 13:07
		Re: question on destroying objarr's By: Jean H. on Tue, 19 August 2008 12:12
		Re: question on destroying objarr's By: David Fanning on Tue, 19 August 2008 12:02
		Re: question on destroying objarr's By: David Fanning on Tue, 19 August 2008 11:57

Previous Topic:	3D graphing
Next Topic:	Re: Today's IDL Lesson

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sun Oct 12 09:48:41 PDT 2025

Total time taken to generate the page: 0.39957 seconds