blend on Windows -- no go for graphics?
ambassador at fourthworld.com
Sat Aug 6 11:35:34 CDT 2005
Chipp Walters wrote:
> Richard Gaskin wrote:
>> While the docs claim that the blend ink effect is available on
>> Windows, in practice I can only use it with images, but not with
>> graphic objects.
>> Am I missing something? If there's some trick to getting blend to
>> work as documented on Windows I'd be forever grateful...
> Check out the srcOr ink effect. Depending on the grayscale of the
> graphic will create the effective transparency, with a graphic of pure
> black being 100% transparent, and white being pure opaque.
> I don't think there's an equivalent of just 'blend'
Thanks Chipp. The srcOr ink is good in many cases, but in this one the
benefit of blend is that it shows lots of different gradations where
parts of the polygon overlap repeatedly. In the UI I'm working on this
communicates useful information to the user (relates to data density).
I've submitted a request to extend support of the blend ink for graphics
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