How about to build in the transformation's controller for shape like fabricjs?

[cactis]

Like as rotation, reizse controllers. ref: http://fabricjs.com/

[ericdrowell]

Can you explain a bit more? What exactly are you wanting to do?

[yechoua]

I think he wan't to add for some node a property wich will give the possibilitty to the user to scale and rotate (like you've done for the drag function)