On Sun, Dec 13, 2009 at 12:47 PM, Nicolas Carranza <[email protected]>wrote:
> I have some questions about tilt precision on an Intuos3. Using the linux > wacom driver I get stylus tilt values on the x axis ranging from -64 to +63 > (tested using xidump). While on Windows I get stylus tilt values ranging > from -60 to 60 (tested using wintab and also the Wacom Tabler Properties > utility (About->Diagnose...) ) apparently over the same physical range (but > this is hard to say as the difference is only ~3deg). My questions are: > * Why does the linux-wacom driver get a wider range on linux using the same > hardware? > We report raw data on Linux while Windows reports modified data. Tilt raw data is reported from -64 to 63 by the hardware. > * How precise is the Intuos3 stylus and the linux-wacom driver when > reporting > tilt angle? Is there a specified error (+/-X deg) to take into account? > I'd say as accurate as the tablet reports to us. However, considering we have a default of 2 for Suppress ( http://linuxwacom.sourceforge.net/index.php/howto/inputdev), you may get 2 counts of offset if you didn't change Suppress yourself Ping
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