Comments on: Actionscript 3.0: Scale Object from Center Point

By: amene

amene — Wed, 18 Jan 2012 06:55:20 +0000

oh thanks .greate article

By: Alexei White

Alexei White — Sat, 19 Nov 2011 04:14:01 +0000

This is funny. I was looking for this information.. and busy copying and pasting the contents of your post into my code.. and then I realized.. its you! heh

By: Adam J

Adam J — Wed, 02 Feb 2011 14:00:11 +0000

nice piece od code, works fine, thx:)

By: Nico Limpika

Nico Limpika — Wed, 26 May 2010 22:42:36 +0000

To Dan: you say do it by hand and I agree. Here is an article that gives a lot of detail:

http://www.actionscript-flash-guru.com/blog/33-scale-around-a-point–transform-multiple-objects–actionscript-3-as3

By: Dan

Dan — Thu, 04 Mar 2010 13:16:05 +0000

DO IT BY HAND,

Manual Scale: set the code (general ‘load youtube vid’, sorry dont have it to hand) into a movie clip with a handle on a separate layer, the handle is a graphic/big orange block that you draw to the exact dims of the intended YT. Come out of the movie clip, manually scale the handle, ctrl/shift to retain proportions, this applies relative to the display of the Youtube vid that is loaded.

might also work with the 3d tool should you feel like playing about with the MC. you can run multiple vids at any shape and size you want, worked amazingly well for a few video walls I’ve done.

if you want to see an example email dan.hemsley@live.co.uk.

Dan

By: Jloa

Jloa — Wed, 02 Dec 2009 13:21:13 +0000

Nice, but how can u scale according to the rotation (if applied to the object before scaling)?
The tx/ty always moves the matrix according to the zero rotation. That’s the problem.

By: Joel

Joel — Thu, 23 Apr 2009 16:37:35 +0000

In your sample your variable is named “ptRotationPoint”, but you are passing “ptScalePoint” in your function call. Might want to change that so people don’t get confused.

Otherwise, this is a godsend. Saved me hours of figuring it out for myself. Off to read more about matrices now.

Thanks!

By: Anonymous

Anonymous — Sun, 12 Apr 2009 22:32:13 +0000

Should be like this:
//this will create a point object at the center of the display object
ptScalePoint = new Point(mcPhoto.x + mcPhoto.width/2, mcPhoto.y + mcPhoto.height/2);
//call the function and pass in the object to be rotated, the amount to scale X and Y (sx, sy), and the point object we created
scaleFromCenter(mcPhoto, 2, 2, ptScalePoint);

By: Amber Nicole

Amber Nicole — Thu, 09 Apr 2009 14:54:22 +0000

I am working on this as well. I have a problem though, when I try to run the script. An error comes up that says “1084:Syntax error: expecting a rightparen before multi.” Any suggestions? I do not appear to be missing a paren anywhere.

By: Anonymous

Anonymous — Wed, 18 Feb 2009 21:35:45 +0000

I’m getting the error that ptRotationPoint and ptScalePoint are undefined how and where do i define them. How can i get this to work? any help?