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

[Stephen M. Webb]

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

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

Title:
  Position delta attributes incorrect when touch count changes

Status in uTouch-geis:
  Fix Committed
Status in “utouch-geis” package in Ubuntu:
  In Progress

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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