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Thread: Scaling QwtSpectogram respectively the Axes

  1. #1
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    Arrow Scaling QwtSpectogram respectively the Axes

    Hi Community,

    I want to make a QwtSpectrogram that shows me the pressure_distribution in a gas lubricated bearing. For a gas bearing with a quadratic geometry I get the following picture:



    When I now change the geometry to be rectangular, I get:



    I want the axes to scale themselves automatically to see the difference between the length and width. I changed the picture manually -> this is what I want it to look like:






    Any suggestions ? I simply dont get it.
    Attached Images Attached Images

  2. #2
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    Default Re: Scaling QwtSpectogram respectively the Axes

    If this is about having a fixed aspect ratio: see QwtPlotRescaler.

    Check the navigation example,

    Uwe

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

    revellix (2nd October 2011)

  4. #3
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    Default Re: Scaling QwtSpectogram respectively the Axes

    fixed aspect ratio ... hard to be a newbie and not being native english speaker. thanks a lot.

  5. #4
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    Default Re: Scaling QwtSpectogram respectively the Axes

    It' probably sometimes hard for native English speaker too. It would be a great support if a native speaker would check API and documentation and send me patches.

    Uwe

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