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Thread: Set axis value at one side

  1. #1
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    Default Set axis value at one side

    Hello! Is it possible to set axis value at one side? For example, from 10 and maximum value will be set automatically.

  2. #2
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    Default Re: Set axis value at one side

    Quote Originally Posted by Cat View Post
    Hello! Is it possible to set axis value at one side? For example, from 10 and maximum value will be set automatically.
    Well, the autoscaler ( paret of the scale engine ) is fed by the bounding intervals of all plot items having the QwtPlotItem::AutoScale flag enabled.

    So you have several options:


    • disable the autoscaler and use setAxisScale instead, where the upper limit is taken from the bounding rectangle of your data
    • insert a dummy QwtPlotItem that paints nothing, but returns a bounding interval of [10,10]
    • inherit from QwtScaleEngine and overload autoscale().


    Uwe

  3. The following user says thank you to Uwe for this useful post:

    Cat (6th December 2017)

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