[reactive] Transforming Behaviors

[Conal Elliott]

The instances would get added to the reactive-fieldtrip package.  That
package is currently very small, but I anticipate lots of goodies going in
that relate to the combined use of Reactive and FieldTrip.

On Mon, Nov 24, 2008 at 11:18 AM, Conal Elliott <conal at conal.net> wrote:

> Hi Greg,
>
> I don't think anyone has implemented an instance for static transformations
> of dynamic geometry.  Ought to be easy, though.  Also 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.
>
> So I don't forget, would you please submit a ticket to either
> http://trac.haskell.org/reactive or http://trac.haskell.org/FieldTrip ?
>
> You might also enjoy adding these instances yourself.  Patches are very
> welcome.
>
> Thanks,  - Conal
>
>
> On Mon, Nov 24, 2008 at 10:27 AM, Greg Fitzgerald <garious at gmail.com>wrote:
>
>> Should it be possible to write this:
>>
>> spinningTorusPair :: Double -> Behavior Geometry3
>> spinningTorusPair sz = uscale3 sz *% spinningG torusPair
>>
>> Instead of this:
>>
>> spinningTorusPair :: Double -> Behavior Geometry3
>> spinningTorusPair sz = (uscale3 sz *%) <$> spinningG torusPair
>>
>>
>> That is, should a Behavior of something transformable be an instance
>> of Transform as well?  Has anyone tried to implement this instance?
>>
>> Thanks,
>> Greg
>> _______________________________________________
>> Reactive mailing list
>> Reactive at haskell.org
>> http://www.haskell.org/mailman/listinfo/reactive
>>
>
>
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