Mario, Apologies for not replying sooner -- I've had quite a bit on my plate this past week and *still* haven't had a chance to sit down and read through your patches just yet. Fingers crossed, I'll have a moment next week...
I'm excited to see what you've created: I liked the work that Yu had done with multi-point calibration but had some concerns about the amount of data that we'd have to end up storing in an X property. Reducing that to a handful of polynomials certainly sounds enticing. Do you have the in-development calibration utility available on Github or elsewhere? I wonder how difficult it would be to add the algorithms into GNOME's calibration utility... Jason --- Now instead of four in the eights place / you’ve got three, ‘Cause you added one / (That is to say, eight) to the two, / But you can’t take seven from three, / So you look at the sixty-fours.... On 8/27/2015 9:37 AM, Mario Geiger wrote: > Dear developers, > > The following patch adds the possibility (with the default parameters it > have no effect) to remove distortion on the borders of the screen by > defining a border width, if the stylus is in the border (according to > its width) the position of the cursor is corrected by a polynomial of > degree 3. The four coefficients of the polynomial must also be given in > parameter. > Therefore there is 4(topx topy bottomx bottomy) x (1(width)+4(polynomial > coefficients)) = 20 floating point values in the parameter. > > To find the appropriate parameters I am creating a calibration tool, it > calibrate the center of the screen then it calibrate the borders. > git link : https://github.com/antigol/wacom-distortion > The calibration tool is still in development but it seems to work. > > Yours faithfully, > Mario Geiger > ------------------------------------------------------------------------------ _______________________________________________ Linuxwacom-devel mailing list Linuxwacom-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxwacom-devel
