Comments on: Tangle for iPhone http://mchotsoftware.com/blog/2007/04/01/tangle-for-iphone/ Wed, 09 Apr 2008 10:52:16 +0000 hourly 1 http://wordpress.org/?v=3.0 By: Benjamin http://mchotsoftware.com/blog/2007/04/01/tangle-for-iphone/comment-page-1/#comment-363 Benjamin Wed, 09 Apr 2008 10:52:16 +0000 http://mchotsoftware.com/blog/2007/04/01/tangle-for-iphone/#comment-363 I'd like more than rotation - I'd like more general linear transformations of the selection. Some sort of flip operation (a linear transformation with a negative determinant) would be very powerful. A scaling operation would be useful as well. As for the interface (lacking multitouch), I'd suggest adding some use of the keyboard. Having made a selection, holding a rotate key would make mouse motion control rotation, while holding a scaling key would make mouse motion control the scale. (Each of those two families of linear transformations being described by a single parameter, you'd only use one axis of the mouse motion - you could even do shears using both axes for extra fun). I’d like more than rotation – I’d like more general linear transformations of the selection. Some sort of flip operation (a linear transformation with a negative determinant) would be very powerful. A scaling operation would be useful as well.

As for the interface (lacking multitouch), I’d suggest adding some use of the keyboard. Having made a selection, holding a rotate key would make mouse motion control rotation, while holding a scaling key would make mouse motion control the scale. (Each of those two families of linear transformations being described by a single parameter, you’d only use one axis of the mouse motion – you could even do shears using both axes for extra fun).

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