Freehand drawing tool PySide



  • I wrote a freehand drawing tool using Qt, PySide, Python. See https://github.com/bootchk/freehandTool

    Input is pointer (mouse) events, output is a QGraphicsPathItem (i.e. vector graphics.)

    A component that could be adapted for a full app.

    Doesn't teach much about Qt, but it is a common concern for drawing apps.

    Uses fairly sophisticated algorithms from potrace. Shows use of Python generators in a filter pipe.

    The moderators will no doubt bust this to a different forum.


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