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Forum: Qwt

Questions related to Qwt - Qt widgets for technical applications.

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

    Started by HussamF, 13th March 2025 10:17
    • Replies: 2
    • Views: 3,927
    HussamF
    13th March 2025, 14:25 Go to last post

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

    Started by nayaga, 12th March 2025 17:35
    2 Attachment(s)
    • Replies: 1
    • Views: 1,856
    Uwe
    13th March 2025, 12:04 Go to last post

  3. 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: 3
    • Views: 657
    Uwe
    11th March 2025, 09:43 Go to last post

  4. .desktop file cannot find qwt library

    Started by Mike_Allsworth, 5th November 2024 07:54
    • Replies: 2
    • Views: 10,677
    Mike_Allsworth
    10th January 2025, 14:48 Go to last post

  5. Problems with QwtPlotScaleItem and switching scale engine

    Started by mwh, 25th September 2024 15:27
    3 Attachment(s)
    • Replies: 1
    • Views: 28,622
    Uwe
    19th November 2024, 12:35 Go to last post

  6. Qwt proper pointer management

    Started by zvoopz, 31st October 2024 09:40
    qwt pointers
    • Replies: 1
    • Views: 3,654
    d_stranz
    7th November 2024, 18:48 Go to last post

  7. 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: 13,364
    Uwe
    18th June 2024, 18:57 Go to last post

  8. QWT Curve symbol show/hide

    Started by mqt, 14th June 2024 16:44
    • Replies: 1
    • Views: 4,953
    Uwe
    18th June 2024, 18:52 Go to last post

  9. 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: 6,725
    Uwe
    10th June 2024, 09:13 Go to last post

  10. Quick redraw of QWT chart

    Started by nayaga, 5th June 2024 14:25
    c++, qwt, qwtplot
    • Replies: 0
    • Views: 8,513
    nayaga
    5th June 2024, 14:25 Go to last post

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

    Started by muythaibxr, 9th April 2024 22:31
    • Replies: 2
    • Views: 13,685
    Uwe
    15th April 2024, 15:29 Go to last post

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

    Started by Scottie Dog, 12th March 2024 15:33
    • Replies: 3
    • Views: 8,969
    Scottie Dog
    13th March 2024, 14:07 Go to last post

  13. Significant performance issue with high dpi

    Started by mwh, 26th January 2024 11:45
    • Replies: 3
    • Views: 9,031
    Uwe
    29th January 2024, 11:56 Go to last post

  14. Odd behavior when changing scale engines

    Started by mwh, 15th November 2023 09:35
    • Replies: 2
    • Views: 30,074
    mwh
    17th November 2023, 15:33 Go to last post

  15. Spline interpolation behaves "weird"

    Started by mwh, 6th November 2023 15:34
    3 Attachment(s)
    • Replies: 6
    • Views: 18,863
    mwh
    15th November 2023, 09:22 Go to last post

  16. Qwt 6.2 - problems with high dpi scaling

    Started by mwh, 18th September 2023 15:22
    3 Attachment(s)
    • Replies: 6
    • Views: 27,061
    mwh
    20th September 2023, 08:56 Go to last post

  17. Question QwtPlotLegendItem with items spanning multiple columns

    Started by alex_sh, 17th August 2023 10:39
    qwt legend item span
    • Replies: 0
    • Views: 29,411
    alex_sh
    17th August 2023, 10:39 Go to last post

  18. 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: 15,693
    Bob_Edwards
    26th April 2023, 17:38 Go to last post

  19. Qwt Lib for Qt5 and Qt6

    Started by TestCoder, 31st March 2023 21:01
    • Replies: 0
    • Views: 22,961
    TestCoder
    31st March 2023, 21:01 Go to last post

  20. Qwt with CMake

    Started by buster, 27th February 2023 22:45
    • Replies: 15
    • Views: 25,030
    d_stranz
    6th March 2023, 20:57 Go to last post

  21. Question Render canvas only to QImage

    Started by alex_sh, 8th February 2023 10:26
    canvas, image, qwt, render, spectrogram
    • Replies: 2
    • Views: 15,106
    alex_sh
    9th February 2023, 10:46 Go to last post

  22. Question QwtPlotOpenGLCanvas plot window disappears then reappears

    Started by peppermg, 11th November 2022 22:49
    • Replies: 1
    • Views: 13,068
    Uwe
    14th November 2022, 08:35 Go to last post

  23. QwtSplineCurveFitter and auto scale

    Started by mwh, 18th October 2022 08:23
    1 Attachment(s)
    • Replies: 2
    • Views: 11,990
    mwh
    19th October 2022, 08:48 Go to last post

  24. Contour plot of non-rectangular data?

    Started by dobedidoo, 12th October 2022 14:14
    1 Attachment(s)
    • Replies: 1
    • Views: 13,049
    d_stranz
    12th October 2022, 17:07 Go to last post

  25. Need space between bars in QwtPlotMultiBarChart

    Started by chanduthp, 7th September 2022 09:44
    2 Attachment(s)
    • Replies: 2
    • Views: 13,373
    chanduthp
    8th September 2022, 14:26 Go to last post

  26. QwtText warning: Type conversion already registered from type QString to type QwtText

    Started by alketi, 15th June 2022 16:17
    • Replies: 2
    • Views: 16,674
    alketi
    1st September 2022, 21:41 Go to last post

  27. Plot in a transformed grid

    Started by raphael.lencrerot, 18th August 2022 11:16
    coordinate system, rotated grid, transform 2 Attachment(s)
    • Replies: 0
    • Views: 20,385
    raphael.lencrerot
    18th August 2022, 11:16 Go to last post

  28. QwtPlot: not use scientific notation in axis labels

    Started by qt_gotcha, 21st May 2022 10:35
    • Replies: 1
    • Views: 14,142
    Uwe
    22nd May 2022, 19:56 Go to last post

  29. manipulating data for log scale

    Started by oliver_mpt, 16th April 2022 23:23
    • Replies: 6
    • Views: 17,490
    jhosek
    26th April 2022, 10:22 Go to last post

  30. "Reset" panning?

    Started by dobedidoo, 21st April 2022 15:40
    • Replies: 5
    • Views: 15,990
    Uwe
    25th April 2022, 10:38 Go to last post
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