As you may know in Flash the user can easily implement movements (including rotations) of objects by so called "tweens".
The developer defines e.g. the start and end position of a picture and how many rotations should
be applied and Flash generates the moving itself automatically. Thats nifty.
How can I implement this in Flex?
you can do tweening in flex programatically using mx.effects.Tween class.Serveral Different kinds of tweens are also available in mx.effects package.
here is quick start for adding tween effects in flex http://www.adobe.com/devnet/flex/quickstart/adding_effects/
here is the mx.effects package details http://livedocs.adobe.com/livecycle/es/sdkHelp/common/langref/mx/effects/package-detail.ht ml