See also http://dev.laptop.org/ticket/12161
Tony > Hi folks, > > I made a simple Sugar activity to test the XO-4's multi-touch screen: > > http://activities.sugarlabs.org/en-US/sugar/addon/4611/ > > It works fine most of the time. Sometimes the touch contact ends unexpectedly > without lifting the finger. > > It also demonstrates that the Neonode sensor's two touch points are not > independent: If you put down two fingers simultaneously, it does not know in > which of the 4 possible positions the two fingers are (it only knows that 2 > horizontal and 2 vertical beams got obstructed) and so it has to guess. Also, > the tracking sometimes "switches over", e.g. when doing a pinch-zoom using > your right hand. > > For activity developers this means that pinch/zoom and rotation gestures will > work fine, but we cannot rely on truly independent touch tracking. > > Also, two-finger sweeps are not always recognized as two fingers if they are > held close together. > > Nonetheless, it is fun to play with if you happen to have an XO-4 Touch :) > > Source code: > > http://git.sugarlabs.org/testmultitouch/mainline > > Patches welcome, but I want to keep the source simple, this is not going to > become another Paint activity. > > - Bert - > > PS: Could some admin please delete the accidental non-mainline repo in > http://git.sugarlabs.org/testmultitouch/ ? Keep "mainline", remove > "testmultitouch". Thanks. > _______________________________________________ > Sugar-devel mailing list > sugar-de...@lists.sugarlabs.org > http://lists.sugarlabs.org/listinfo/sugar-devel > > _____________________________________________________ > This mail has been virus scanned by Australia On Line > see http://www.australiaonline.net.au/mailscanning _______________________________________________ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
