Well, as I said, there are alternative open technologies that are nearly as
good, and for which I have working code for encoding and algebraics (union,
difference, intersect, xor, frame, inset, scale, translate, etc).  The
effort from there is one that you would be best suited for - using these
regions for clipping rather than the current bitmasking methods.

If you're up to it, I'd be more than willing to do the first part.

>Duane,
>
>> The primary purpose of a region is as a complex clipping mask
>> that can be succinctly encoded and readily manipulated with
>> various Boolean operations.
>
>Thanks for the nice explanation! This is a pretty neat formulation and
>allows for some really nice algebraic calculations. To bad we can't use
>it...
>
>  Andreas