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jjletho

strange issue with AutoFitArea and transformAroundCenter

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Really strange issue:

 

when I use transformAroundCenter applied to an autoFitArea object

 

TweenMax.to(area, 0.5, {onStart: function(){
	imgArea.removeEventListener(MouseEvent.CLICK, zoom);
	}, 
transformAroundCenter: { width: fla.stage.stageHeight * (def_) * 1.3, height: fla.stage.stageHeight * 1.3 }, 

onComplete: zoomMove, ease: Strong.easeIn } );

 

it works only if I use:

 

area.preview = true;

 

otherwise I get this error:

 

TypeError: Error #1009: Impossibile accedere a una proprietà o a un metodo di un riferimento oggetto null.
at com.greensock.plugins::TransformAroundPointPlugin/onInitTween()[E]
at com.greensock.plugins::TransformAroundCenterPlugin/onInitTween()[E]
at com.greensock::TweenLite/init()[E]
at com.greensock::TweenMax/init()[E]
at com.greensock::TweenMax/renderTime()[E]
at com.greensock.core::SimpleTimeline/renderTime()[E]
at com.greensock::TweenLite$/updateAll()[E]

 

any help will be appreciate :)

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ps: for now I solved by setting area.alpha to 0

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What version of the TransformAroundCenter plugin are you using? It sounds like you might be using a VERY old version. You should be using 1.31. The issue simply has to do with the fact that it must use getBounds() to find out the object's bounds inside its parent, but if it doesn't have a parent, that causes problems. TransformAroundCenter was updated about 6 months ago (or maybe more) to just temporarily add the object to a blank Sprite if there's no parent, so you should be fine. Get the latest version by logging into your Club GreenSock account at https://www.greensock.com/account/

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hi jack thanks for your reply:

 

my transformAroundCenter:

 

/**
* VERSION: 1.31
* DATE: 1/13/2010
* ACTIONSCRIPT VERSION: 3.0 
* UPDATES AND DOCUMENTATION AT: http://www.TweenMax.com

 

 

TransformAroundPointPlugin.as

 

* VERSION: 1.61
* DATE: 12/2/2009
* ACTIONSCRIPT VERSION: 3.0 
* UPDATES AND DOCUMENTATION AT: http://www.TweenMax.com

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Ah yes, come to think of it, the object must be in the display list in order for transformAroundCenter or transformAroundPoint to work properly because it relies on localToGlobal() and globalToLocal() (there's no other way to do it as far as I can tell). So your solution of setting visible=true and alpha=0 is indeed best.

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