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Forum: Qwt

Questions related to Qwt - Qt widgets for technical applications.

  1. Nonuniform raster data resampler for QwtPlotSpectrogram (Qwt 5.2)

    Started by d_stranz, 31st March 2012 22:37
    7 Attachment(s)
    • Replies: 8
    • Views: 28,158
    d_stranz
    17th November 2025, 17:09 Go to last post

  2. QwtPlotRenderer borders

    Started by peppermg, 4th September 2025 22:47
    • Replies: 0
    • Views: 71,899
    peppermg
    4th September 2025, 22:47 Go to last post

  3. Qwt proper pointer management

    Started by zvoopz, 31st October 2024 09:40
    qwt pointers
    • Replies: 2
    • Views: 57,661
    ghorwin
    10th June 2025, 17:54 Go to last post

  4. QwtPlotCanvas Transparent

    Started by Olga1801, 10th June 2025 10:29
    qwt transparent
    • Replies: 0
    • Views: 157,256
    Olga1801
    10th June 2025, 10:29 Go to last post

  5. Qwt 6.3.0 with Qt 6.8.2 - Antialiasing problem with QwtPlotOpenGLCanvas

    Started by stsorg, 10th March 2025 07:38
    qwt, qwt 6.3.0, qwtplotopenglcanvas
    • Replies: 4
    • Views: 60,288
    stsorg
    16th April 2025, 10:24 Go to last post

  6. Stalling Qwt on windows 11

    Started by roberthorne, 10th April 2025 05:53
    • Replies: 2
    • Views: 27,600
    Uwe
    15th April 2025, 16:01 Go to last post

  7. Moved: Stalling Qwt on windows 11

    Started by roberthorne, 10th April 2025 21:29
    •  
    •  

  8. Error on build for qwt 6.1.6

    Started by craighamil, 9th April 2025 11:33
    • Replies: 1
    • Views: 23,765
    Uwe
    9th April 2025, 17:06 Go to last post

  9. Placing multiple QwtText or QString at different heights on a QwtPlot

    Started by nayaga, 12th March 2025 17:35
    2 Attachment(s)
    • Replies: 2
    • Views: 22,597
    helendam
    2nd April 2025, 07:37 Go to last post

  10. Question Controlling y-coordinate values in QwtRasterData's value() method

    Started by HussamF, 13th March 2025 10:17
    • Replies: 2
    • Views: 27,280
    HussamF
    13th March 2025, 14:25 Go to last post

  11. .desktop file cannot find qwt library

    Started by Mike_Allsworth, 5th November 2024 07:54
    • Replies: 2
    • Views: 32,408
    Mike_Allsworth
    10th January 2025, 14:48 Go to last post

  12. Problems with QwtPlotScaleItem and switching scale engine

    Started by mwh, 25th September 2024 15:27
    3 Attachment(s)
    • Replies: 1
    • Views: 52,272
    Uwe
    19th November 2024, 12:35 Go to last post

  13. Drawing a QwtPlot object element on top of other elements (QWT library)

    Started by nayaga, 15th June 2024 15:56
    c++, qwt
    • Replies: 1
    • Views: 52,617
    Uwe
    18th June 2024, 18:57 Go to last post

  14. QWT Curve symbol show/hide

    Started by mqt, 14th June 2024 16:44
    • Replies: 1
    • Views: 23,790
    Uwe
    18th June 2024, 18:52 Go to last post

  15. Partial quick redraw of some QwtPlot elements

    Started by nayaga, 7th June 2024 08:54
    c++, qwt, qwt 6.0.0 beginner
    • Replies: 1
    • Views: 33,253
    Uwe
    10th June 2024, 09:13 Go to last post

  16. Quick redraw of QWT chart

    Started by nayaga, 5th June 2024 14:25
    c++, qwt, qwtplot
    • Replies: 0
    • Views: 40,116
    nayaga
    5th June 2024, 14:25 Go to last post

  17. Qwt with Qt 6.7.0 QwtPlot doesn't show colors in legend

    Started by muythaibxr, 9th April 2024 22:31
    • Replies: 2
    • Views: 36,892
    Uwe
    15th April 2024, 15:29 Go to last post

  18. Question Interfacing to :qwt_plot_curve.h: void setSamples( const QVector< QPointF >& );

    Started by Scottie Dog, 12th March 2024 15:33
    • Replies: 3
    • Views: 29,705
    Scottie Dog
    13th March 2024, 14:07 Go to last post

  19. Significant performance issue with high dpi

    Started by mwh, 26th January 2024 11:45
    • Replies: 3
    • Views: 31,545
    Uwe
    29th January 2024, 11:56 Go to last post

  20. Odd behavior when changing scale engines

    Started by mwh, 15th November 2023 09:35
    • Replies: 2
    • Views: 48,964
    mwh
    17th November 2023, 15:33 Go to last post

  21. Spline interpolation behaves "weird"

    Started by mwh, 6th November 2023 15:34
    3 Attachment(s)
    • Replies: 6
    • Views: 39,952
    mwh
    15th November 2023, 09:22 Go to last post

  22. Qwt 6.2 - problems with high dpi scaling

    Started by mwh, 18th September 2023 15:22
    3 Attachment(s)
    • Replies: 6
    • Views: 60,575
    mwh
    20th September 2023, 08:56 Go to last post

  23. Question QwtPlotLegendItem with items spanning multiple columns

    Started by alex_sh, 17th August 2023 10:39
    qwt legend item span
    • Replies: 0
    • Views: 48,450
    alex_sh
    17th August 2023, 10:39 Go to last post

  24. Question Issue of overlapping segments on a QwtPlotCurve with a thick transparent QPen

    Started by Bob_Edwards, 24th April 2023 20:15
    alpha channel, effect, qwt, qwtplotcurve 2 Attachment(s)
    • Replies: 2
    • Views: 41,396
    Bob_Edwards
    26th April 2023, 17:38 Go to last post

  25. Qwt Lib for Qt5 and Qt6

    Started by TestCoder, 31st March 2023 21:01
    • Replies: 0
    • Views: 43,016
    TestCoder
    31st March 2023, 21:01 Go to last post

  26. Qwt with CMake

    Started by buster, 27th February 2023 22:45
    • Replies: 15
    • Views: 59,721
    d_stranz
    6th March 2023, 20:57 Go to last post

  27. Question Render canvas only to QImage

    Started by alex_sh, 8th February 2023 10:26
    canvas, image, qwt, render, spectrogram
    • Replies: 2
    • Views: 39,967
    alex_sh
    9th February 2023, 10:46 Go to last post

  28. Question QwtPlotOpenGLCanvas plot window disappears then reappears

    Started by peppermg, 11th November 2022 22:49
    • Replies: 1
    • Views: 32,410
    Uwe
    14th November 2022, 08:35 Go to last post

  29. QwtSplineCurveFitter and auto scale

    Started by mwh, 18th October 2022 08:23
    1 Attachment(s)
    • Replies: 2
    • Views: 30,450
    mwh
    19th October 2022, 08:48 Go to last post

  30. Contour plot of non-rectangular data?

    Started by dobedidoo, 12th October 2022 14:14
    1 Attachment(s)
    • Replies: 1
    • Views: 32,395
    d_stranz
    12th October 2022, 17:07 Go to last post
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