[Fieldtrip] Re: [reactive] Transforming Behaviors
garious at gmail.com
Mon Nov 24 18:56:02 EST 2008
>> static transformations of dynamic geometry.
>> dynamic transformation of static geometry and dynamic transformation of
>> dynamic geometry. And the corresponding three additional instances for 2D
>> geometry. All six would be very useful.
Implementing just the dynamic transformation of dynamic geometry seems
to work out best.
instance Transform xf a => Transform (Behavior xf) (Behavior a) where
(*%) = liftA2 (*%)
With the other instances, GHC complains about ambiguities, and it's
easy enough to pull either side up into the dynamic realm.
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