Checking if an object exists

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03 March 2003	#1

Hugh Compositor Hugh Macdonald 2D Supervisor Nvizible United Kingdom Join Date: Nov 2002 Posts: 1,465	Checking if an object exists I'm writing a script at the moment that will check whether certain objects exist in the current scene.... I'm currently doing it with the following procedure: PHP Code: global proc int findObject(string $name) { select -r $name; $object = `ls -sl`; if(size($object) == 0) { print("Failed to find "+$name+"\n"); return 0; } else return 1; } However, if it finds that an object doesn't exist, the select command gives an error, and no more of the script is executed.... Is there any way of getting around this without writing my own stuff to go through all of the objects in the scene? __________________ Hugh Macdonald nvizible
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03 March 2003	#2

X-Tender Who's Your Daddy!? Leveldesigner, 2D/3D Artist Join Date: Mar 2003 Posts: 190	try this ... if (`exists $obj`) { //do funny stuff }; $obj is the object that you wanna ask if it exist __________________ \| xt_textureStudio \| xt_prefabLibrary \|xt_normalis \| Get it @ Fuchtelworld V.3 \|
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03 March 2003	#3

Hugh Compositor Hugh Macdonald 2D Supervisor Nvizible United Kingdom Join Date: Nov 2002 Posts: 1,465	ah - okay - I'll give that a go... When I looked in the MEL reference, it said that 'exist' was for checking if a function existed.... __________________ Hugh Macdonald nvizible
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03 March 2003	#4

X-Tender Who's Your Daddy!? Leveldesigner, 2D/3D Artist Join Date: Mar 2003 Posts: 190	oh damn, you're right ... i must lern to read the description first =D ... but try this =D objExists $objectname; thats works .. you get 0 back if it not exist or 1 if it exist .. have fun .. __________________ \| xt_textureStudio \| xt_prefabLibrary \|xt_normalis \| Get it @ Fuchtelworld V.3 \|
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03 March 2003	#5

Hugh Compositor Hugh Macdonald 2D Supervisor Nvizible United Kingdom Join Date: Nov 2002 Posts: 1,465	thanks! I did go the route you thought at first... What would be great would be to somehow catch the error that select gives out... Edit: Nice - thanks - I hadn't come across that one! Thanks for your help... __________________ Hugh Macdonald nvizible
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03 March 2003	#6

klod Veteran Join Date: Feb 2002 Posts: 31	with objExists, you can also check if an attribute exists on a node: objExists ($obj + ".myAttr") Klod
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01 January 2006	#7

CGTalk Moderation Expert Join Date: Sep 2003 Posts: 1,066,472	Thread automatically closed This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum. __________________ CGTalk Policy/Legalities Note that as CGTalk Members, you agree to the terms and conditions of using this website.
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