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Re: Recursive Function Program in IDL [message #46795 is a reply to message #46710]

Wed, 14 December 2005 13:06

JD Smith
Messages: 850
Registered: December 1999

Senior Member

On Wed, 14 Dec 2005 09:02:17 -0700, David Fanning wrote:

> Folks,
>
> Does anyone have a handy recursive function that does something neat?
> Someone is asking, and I don't have time to work on this. He (apparently)
> can't get to the newsgroup.

How about one to get all the widget ID's on a given widget tree:

;; decend heirarchy of tlb .. return entire tree's widget_ids in 'list'
pro treedesc, curin,list
cur=curin ;ensure local copy of current widget
if cur ne 0 then begin
if n_elements(list) eq 0 then list=cur else list=[list,cur]
cur=widget_info(cur,/CHILD) ;descend one level
while cur ne 0 do begin ; find siblings... descend their subtrees
treedesc,cur,list ; recurs on sibling
cur=widget_info(cur,/SIBLING)
endwhile
endif
end

I think Mark rewrote this and stuck it in his library too.

JD

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[Message index]

		Recursive Function Program in IDL By: David Fanning on Wed, 14 December 2005 08:02
		Re: Recursive Function Program in IDL By: peter.albert@gmx.de on Thu, 15 December 2005 01:06
		Re: Recursive Function Program in IDL By: David Fanning on Thu, 15 December 2005 00:36
		Re: Recursive Function Program in IDL By: peter.albert@gmx.de on Wed, 14 December 2005 23:53
		Re: Recursive Function Program in IDL By: JD Smith on Wed, 14 December 2005 13:06
		Re: Recursive Function Program in IDL By: b_gom on Wed, 14 December 2005 11:43

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