[Bug 967267] Re: Position delta attributes incorrect when touch count changes

[Launchpad Bug Tracker]

This bug was fixed in the package utouch-geis - 2.2.8-0ubuntu1

---------------
utouch-geis (2.2.8-0ubuntu1) precise; urgency=low

  [ Chase Douglas ]
  * Build integration tests where dependencies are available
    - Will not build tests in archive, will build tests in Jenkins systems

  [ Stephen M. Webb ]
  * New upstream release.
    - fixes filter creation when no matching devices are present (lp: #904731)
    - fixes Unity crashes in geis_filter_delete() (lp: #936815)
    - fixes touch event delay during timeout wait (lp: #967605)
    - fixes handling device addition/removal (lp: #944822)
    - fixes tap timeouts (lp: #962705)
    - fixes position delta on touch count changes (lp: #967267)
    - fixes window ungrab on subscription deactivation (lp: #968736)
    - fixes geistest crash on startup (lp: #966595)
  * Bumped minimum required version of utouch-geis to 3.0.4 for licensing
    changes.
 -- stephen.webb at canonical.com (Stephen M. Webb)   Sat, 31 Mar 2012 13:13:34 -0400

** Branch linked: lp:utouch-geis/precise

** Changed in: utouch-geis (Ubuntu)
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/967267

Title:
  Position delta attributes incorrect when touch count changes

Status in uTouch-geis:
  Fix Released
Status in “utouch-geis” package in Ubuntu:
  Fix Released

Bug description:
  Some gestures continue when the number of touches changes. When this
  happens, much of the gesture state is reset. This includes the
  original center and cumulative transformation matrix.

  Geis currently stores the last position coordinates and uses them to
  calculate the delta for the next event. When the touch count changes
  and the grail gesture state is reset, the geis calculation often
  results in wildly incorrect values.

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