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How to find if an object contains another [message #22146]

Thu, 19 October 2000 00:00

Dave Greenwood
Messages: 33
Registered: October 2000

Member

How do I determine if an object "contains" another one?

For example, I can create a model object and add a surface object or
a plot object. Given that model object, how would I find out whether
or not a surface object has been added?

The best I've come up with is something like:

xx = model->get(/all,isa='idlgrsurface')
s = size(xx)
if s[1] eq 11 then $
print,'Has one or more surface' $
else $
print,'Has no surfaces'

Surely there's a simpler way?

A related question is: how do I test if an object pointer (returned by
the GetByName method, for example) is null?

Thanks,
Dave
--------------
Dave Greenwood Email: Greenwoodde@ORNL.GOV
Oak Ridge National Lab %STD-W-DISCLAIMER, I only speak for myself

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[Message index]

		How to find if an object contains another By: Dave Greenwood on Thu, 19 October 2000 00:00
		Re: How to find if an object contains another By: davidf on Sun, 03 December 2000 00:00
		Re: How to find if an object contains another By: davidf on Wed, 17 January 2001 06:01

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