[Trac #369] Incompatibilities between trackpad precision and the current rollover UI design

[Zarro Boogs per Child]

#369: Incompatibilities between trackpad precision and the current rollover UI
design
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 Reporter:  jg      |        Owner:  Eben   
     Type:  defect  |       Status:  new    
 Priority:  high    |    Milestone:  BTest-2
Component:  sugar   |   Resolution:         
 Keywords:          |  
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Comment (by Eben):

 It seems like there is ''no'' curve at all at the moment, though.  Anyway,
 I'm confident that a team that can put together a laptop for $100 can
 define a curve  - or a line, or anything other than a stepwise function -
 that will make the cursor easier to control.

 I looked around online for similar attempts, and found the following:

 http://lists.freedesktop.org/archives/xorg/2005-September/010211.html

 This patch uses the Taylor Series Expansion to define an approximation for
 the desired curve.  According to the comments, it might be a little bit
 too aggressive a curve for our purposes, but we should be able to tweak it
 by adjusting the coefficients, and could also simply scale it back with a
 multiplier.  At any rate, it's a place to start, since testing it out
 should be fairly simple; I think it's worth exploring.

-- 
Ticket URL: <http://dev.laptop.org/ticket/369#comment:7>
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