Selon Koen Kooi <koen_at_vestingbar.nl>:
>
> > that is
> > ycal = ax + by + c
> > ycal = dx + ey + f
> With this kind of formulas, isn't it "easier" to make a 240x320
> transformation matrix and put that in tslib? Tslib can derive the
> equations from that, or directly apply it to the readings. The matrix
> may be smaller at the sacrifice of precision.
It could be, using a calibration with more than 5 points. I do not know how it works
with the other ipaq. Is the touchcreen acute ? Moreover I do not know how PPC works
with this.
sincerly,
Alain
Received on Fri Apr 16 2004 - 12:47:09 EDT
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