What is the best way to change/set a registration point on a Flex 3 display object? I know this isn't really built in to easily change, but does anyone have any suggestions on how I could extend UIComponent to achieve this?
A:
Put it inside a Canvas container, with its clipContent attribute set to false. Within the canvas, you can put your object wherever you like.
David Hanak
2009-03-05 18:16:24
Canvas adds some pretty big overhead if you'll be doing this for many display objects. Members of Adobe's Flex team recommend keeping the number of containers in a Flex application to a minimum.
joshtynjala
2009-03-06 22:24:55
+1
A:
For some reason, the Flash Player API doesn't expose the registration point of DisplayObjects (and the Flash IDE makes them a pain to modify once an object is created). The best solution, as David pointed out, is to add your component as a child of another component (UIComponent would be fine). So, for example, if I had a Button and I wanted its registration point at its center, I'd add it as a child of a UIComponent (not Canvas) and offset the child by setting its position to (-button.width/2, -button.height/2).
Troy Gilbert
2009-04-10 16:17:49
+1
A:
Put your DisplayObject inside a sprite and set the DisplayObject's x & y positions to the negitive of your target registration point. Apply all transforms to the Sprite container.
PiPeep
2009-08-23 03:09:57