Hi
Well it could work but you will have the issue that a row can only be one height so
if one big and the rest small, it will look odd.

alt text

But if all chart will be ca same size yes it should work ok.

Alternatively, you could tweak this
https://doc.qt.io/qt-5/qtwidgets-layouts-flowlayout-example.html
and put it into a QScrollArea.
Add this to it
https://wiki.qt.io/Widget-moveable-and-resizeable
Tweak it a bit and it should allow for a group of chars in various sizes and
scrollable.

For sure it can be measured, and I do agree with the approach "if it works fine, just use it".

But I am still curious, why clipping is expensive in the first place, so that the warning exists in the docs? Has anyone experienced performance impact while actively using clipping for real-time chart?

@Christian-Ehrlicher

mark@mark:/opt/Qt5.9.1/5.9.1/gcc_64/lib$ objdump -T -t libQt5Core.so.5 | grep -i qt_version_tag 000000000035aa9d g DO .rodata 0000000000000001 Qt_5 qt_version_tag_5_0 000000000035aa9c g DO .rodata 0000000000000001 Qt_5 qt_version_tag_5_1 000000000035aa9b g DO .rodata 0000000000000001 Qt_5 qt_version_tag_5_2 000000000035aa9a g DO .rodata 0000000000000001 Qt_5 qt_version_tag_5_3 000000000035aa99 g DO .rodata 0000000000000001 Qt_5 qt_version_tag_5_4 000000000035aa98 g DO .rodata 0000000000000001 Qt_5 qt_version_tag_5_5 000000000035aa97 g DO .rodata 0000000000000001 Qt_5 qt_version_tag_5_6 000000000035aa96 g DO .rodata 0000000000000001 Qt_5 qt_version_tag_5_7 000000000035aa95 g DO .rodata 0000000000000001 Qt_5 qt_version_tag_5_8 000000000035aa94 g DO .rodata 0000000000000001 Qt_5 qt_version_tag_5_9 000000000035aa97 g DO .rodata 0000000000000001 (Qt_5.6) qt_version_tag 000000000035aa94 g DO .rodata 0000000000000001 Qt_5.9 qt_version_tag 000000000035aa9c g DO .rodata 0000000000000001 (Qt_5.1) qt_version_tag 000000000035aa95 g DO .rodata 0000000000000001 (Qt_5.8) qt_version_tag 000000000035aa9d g DO .rodata 0000000000000001 (Qt_5.0) qt_version_tag 000000000035aa9a g DO .rodata 0000000000000001 (Qt_5.3) qt_version_tag 000000000035aa9b g DO .rodata 0000000000000001 (Qt_5.2) qt_version_tag 000000000035aa98 g DO .rodata 0000000000000001 (Qt_5.5) qt_version_tag 000000000035aa99 g DO .rodata 0000000000000001 (Qt_5.4) qt_version_tag 000000000035aa96 g DO .rodata 0000000000000001 (Qt_5.7) qt_version_tag mark@mark:/opt/Qt5.9.1/5.9.1/gcc_64/lib$ objdump -T -t libQt5Widgets.so.5 | grep -i qt_version_tag 0000000000000000 DO *UND* 0000000000000000 Qt_5.9 qt_version_tag mark@mark:/opt/Qt5.9.1/5.9.1/gcc_64/lib$ objdump -T -t libQt5Gui.so.5 | grep -i qt_version_tag 0000000000000000 DO *UND* 0000000000000000 Qt_5.9 qt_version_tag mark@mark:/opt/Qt5.9.1/5.9.1/gcc_64/lib$ objdump -T -t libQt5Charts.so.5 | grep -i qt_version_tag 0000000000000000 DO *UND* 0000000000000000 Qt_5.9 qt_version_tag mark@mark:/opt/Qt5.9.1/5.9.1/gcc_64/lib$

As a workaround, it seems you can setRange(0,1) then add the axis to the chart, then call setRange(realMin,realMax) and the chart is drawn properly.

Thanks for the support guys. I tried making a transparent QPixmap image using Qt::transparent fill for the axis and overlaying it onto my other QPixmap, however it didn't work properly. So I ended up just drawing directly onto the image itself. Not the most efficient method but it seems to work...

Hello,
I tried the library qwt and saw that the slowdown effect did not occur.
Update all my code to adapt it to the qwt library and once integrated, no type of slowdown occurs even after a couple of days. Also this library allowed me to insert better visual effects.

Thanks for the help.

hi @mmikeinsantarosa .could you resolve this issue?how did u make all the legends visible ?thank you.

@6thC cool story, thanks for the detailed reply! I've realized that QLegend isn't the best solution for me, so I ended up doing something similar to what you did. I'm using labels with a monospaced font and splitting the whole and fractional parts, so it's a lot nicer now

I found a solution and post it here: link

Works, thank you.

@esope
this is an unofficial extension. So you need to contact the developer directly.

But manually - in the project properties - you would need to add the .lib file to projects dependencies and add the modules include path.

Hi,

It might be not possible to insert a QChart object directly but a possible alternative might be to generate your chart, render it on a QImage and then put that QImage your QTextDocument.

Hope it helps