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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 21:37
    7 Attachment(s)
    • Replies: 8
    • Views: 106,029
    d_stranz
    17th November 2025, 16:09 Go to last post

  2. QwtPlotRenderer borders

    Started by peppermg, 4th September 2025 21:47
    • Replies: 0
    • Views: 210,820
    peppermg
    4th September 2025, 21:47 Go to last post

  3. Qwt proper pointer management

    Started by zvoopz, 31st October 2024 08:40
    qwt pointers
    • Replies: 2
    • Views: 98,248
    ghorwin
    10th June 2025, 16:54 Go to last post

  4. QwtPlotCanvas Transparent

    Started by Olga1801, 10th June 2025 09:29
    qwt transparent
    • Replies: 0
    • Views: 299,790
    Olga1801
    10th June 2025, 09:29 Go to last post

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

    Started by stsorg, 10th March 2025 06:38
    qwt, qwt 6.3.0, qwtplotopenglcanvas
    • Replies: 4
    • Views: 104,718
    stsorg
    16th April 2025, 09:24 Go to last post

  6. Stalling Qwt on windows 11

    Started by roberthorne, 10th April 2025 04:53
    • Replies: 2
    • Views: 60,226
    Uwe
    15th April 2025, 15:01 Go to last post

  7. Moved: Stalling Qwt on windows 11

    Started by roberthorne, 10th April 2025 20:29
    •  
    •  

  8. Error on build for qwt 6.1.6

    Started by craighamil, 9th April 2025 10:33
    • Replies: 1
    • Views: 54,839
    Uwe
    9th April 2025, 16:06 Go to last post

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

    Started by nayaga, 12th March 2025 16:35
    2 Attachment(s)
    • Replies: 2
    • Views: 54,598
    helendam
    2nd April 2025, 06:37 Go to last post

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

    Started by HussamF, 13th March 2025 09:17
    • Replies: 2
    • Views: 74,621
    HussamF
    13th March 2025, 13:25 Go to last post

  11. .desktop file cannot find qwt library

    Started by Mike_Allsworth, 5th November 2024 06:54
    • Replies: 2
    • Views: 65,602
    Mike_Allsworth
    10th January 2025, 13:48 Go to last post

  12. Problems with QwtPlotScaleItem and switching scale engine

    Started by mwh, 25th September 2024 14:27
    3 Attachment(s)
    • Replies: 1
    • Views: 90,334
    Uwe
    19th November 2024, 11:35 Go to last post

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

    Started by nayaga, 15th June 2024 14:56
    c++, qwt
    • Replies: 1
    • Views: 93,629
    Uwe
    18th June 2024, 17:57 Go to last post

  14. QWT Curve symbol show/hide

    Started by mqt, 14th June 2024 15:44
    • Replies: 1
    • Views: 55,727
    Uwe
    18th June 2024, 17:52 Go to last post

  15. Partial quick redraw of some QwtPlot elements

    Started by nayaga, 7th June 2024 07:54
    c++, qwt, qwt 6.0.0 beginner
    • Replies: 1
    • Views: 72,299
    Uwe
    10th June 2024, 08:13 Go to last post

  16. Quick redraw of QWT chart

    Started by nayaga, 5th June 2024 13:25
    c++, qwt, qwtplot
    • Replies: 0
    • Views: 77,398
    nayaga
    5th June 2024, 13:25 Go to last post

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

    Started by muythaibxr, 9th April 2024 21:31
    • Replies: 2
    • Views: 70,166
    Uwe
    15th April 2024, 14:29 Go to last post

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

    Started by Scottie Dog, 12th March 2024 14:33
    • Replies: 3
    • Views: 62,830
    Scottie Dog
    13th March 2024, 13:07 Go to last post

  19. Significant performance issue with high dpi

    Started by mwh, 26th January 2024 10:45
    • Replies: 3
    • Views: 65,336
    Uwe
    29th January 2024, 10:56 Go to last post

  20. Odd behavior when changing scale engines

    Started by mwh, 15th November 2023 08:35
    • Replies: 2
    • Views: 81,437
    mwh
    17th November 2023, 14:33 Go to last post

  21. Spline interpolation behaves "weird"

    Started by mwh, 6th November 2023 14:34
    3 Attachment(s)
    • Replies: 6
    • Views: 76,464
    mwh
    15th November 2023, 08:22 Go to last post

  22. Qwt 6.2 - problems with high dpi scaling

    Started by mwh, 18th September 2023 14:22
    3 Attachment(s)
    • Replies: 6
    • Views: 99,319
    mwh
    20th September 2023, 07:56 Go to last post

  23. Question QwtPlotLegendItem with items spanning multiple columns

    Started by alex_sh, 17th August 2023 09:39
    qwt legend item span
    • Replies: 0
    • Views: 81,366
    alex_sh
    17th August 2023, 09:39 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 19:15
    alpha channel, effect, qwt, qwtplotcurve 2 Attachment(s)
    • Replies: 2
    • Views: 76,763
    Bob_Edwards
    26th April 2023, 16:38 Go to last post

  25. Qwt Lib for Qt5 and Qt6

    Started by TestCoder, 31st March 2023 20:01
    • Replies: 0
    • Views: 76,776
    TestCoder
    31st March 2023, 20:01 Go to last post

  26. Qwt with CMake

    Started by buster, 27th February 2023 21:45
    • Replies: 15
    • Views: 107,796
    d_stranz
    6th March 2023, 19:57 Go to last post

  27. Question Render canvas only to QImage

    Started by alex_sh, 8th February 2023 09:26
    canvas, image, qwt, render, spectrogram
    • Replies: 2
    • Views: 79,523
    alex_sh
    9th February 2023, 09:46 Go to last post

  28. Question QwtPlotOpenGLCanvas plot window disappears then reappears

    Started by peppermg, 11th November 2022 21:49
    • Replies: 1
    • Views: 66,577
    Uwe
    14th November 2022, 07:35 Go to last post

  29. QwtSplineCurveFitter and auto scale

    Started by mwh, 18th October 2022 07:23
    1 Attachment(s)
    • Replies: 2
    • Views: 62,224
    mwh
    19th October 2022, 07:48 Go to last post

  30. Contour plot of non-rectangular data?

    Started by dobedidoo, 12th October 2022 13:14
    1 Attachment(s)
    • Replies: 1
    • Views: 64,264
    d_stranz
    12th October 2022, 16:07 Go to last post
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