[Papervision3D] Plane's x&y coordinates to stage's x&y coordinates

[Gil Birman]

>
> Thanks a lot ;) Your tip was extremely useful
>
> One more question. How can I calculate top-left corner of plane without
> changing registration point?
>
> I need this value calculated all the time...



I would change the registration point, but if you don't want to do that,
then your plane will probably be centered, which meens X-axis needs to be
offset by -plane.width/2 and y needs to be offset by plane.height/2

http://www.allflashwebsite.com/article/seamlessly-combining-2d-and-3d-in-flash-with-planes

http://www.allflashwebsite.com/article/seamlessly-combining-2d-and-3d-in-flash-with-planes-part-2-as3
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