Messages in this thread | | | Date | Fri, 14 Nov 2008 03:05:51 +0100 | From | Henrik Rydberg <> | Subject | Re: [PATCH] input: Add a detailed multi-touch finger data report |
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>> Right. :-) I believe the ellipse model is adequate, because it is the >> simplest model that allows for utilization of the orientation of a >> single finger, for instance to turn a knob. At this point, it seems >> like tough enough a challenge. >> > > Maybe; but modeling this as a parallelogram or trapezoid may be easier > to deal with computationally when you stroke a path from the data, to > which you may have fit a spline....
I believe the word "ellipse" is taken too literally here. Orientation and eccentricity are two parameters describing a non-circular object. I does not have to be realized as ellipses on a screen.
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