Qt Graphs lacking functionalities - Axes range
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I took a look and I am still quite confused. Are there any example for adding a 2D chart into a C++/QWidget based application?
@AndyBrice said in Qt Graphs lacking functionalities - Axes range:
I took a look and I am still quite confused. Are there any example for adding a 2D chart into a C++/QWidget based application?
Look at https://code.qt.io/cgit/qt/qtcharts.git/tree/examples/charts to browse through the examples. Not all of them start with
qml. -
@AndyBrice said in Qt Graphs lacking functionalities - Axes range:
I took a look and I am still quite confused. Are there any example for adding a 2D chart into a C++/QWidget based application?
Look at https://code.qt.io/cgit/qt/qtcharts.git/tree/examples/charts to browse through the examples. Not all of them start with
qml.@cristian-adam this is for the old module Qt Charts, not Qt Graphs.
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I just had a closer look at the docs. It seems that 2D Graphs (which I guess is the closest equivalent to the old Qt Charts) are only supported in Qt Quick applications, which is a little surprising to me given my awareness of how much Qt Charts are used in various Qt Widgets applications where I work. The documentation suggests using a QQuickWidget in order to embed this functionality in a Qt Widgets application:
https://doc.qt.io/qt-6/qtgraphs-2d-quickwidgetgraphs-example.html
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@cristian-adam this is for the old module Qt Charts, not Qt Graphs.
@GrecKo said in Qt Graphs lacking functionalities - Axes range:
@cristian-adam this is for the old module Qt Charts, not Qt Graphs.
Sorry. My bad. The Qt Graphs examples at https://code.qt.io/cgit/qt/qtgraphs.git/tree/examples they all have the
qmlpart. -
I had a play with the examples installed in Qt\Examples\Qt-6.10.0\graphs\2d with Qt 6.10 and was a bit underwhelmed.
quickwidgetgraphs doesn't work, nothing happens when you click on the buttons:
hellographs is QML in a QQuickView .
cockpit isn't relevant for me.
Is QtGraphs going to have a C++/widget API similar to QCharts (even if it is just a wrapper over the QML)? Or are people expected to throw away all the QtCharts/widget code and rewrite it all from scratch in QtGraphs/QML?
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I had a play with the examples installed in Qt\Examples\Qt-6.10.0\graphs\2d with Qt 6.10 and was a bit underwhelmed.
quickwidgetgraphs doesn't work, nothing happens when you click on the buttons:
hellographs is QML in a QQuickView .
cockpit isn't relevant for me.
Is QtGraphs going to have a C++/widget API similar to QCharts (even if it is just a wrapper over the QML)? Or are people expected to throw away all the QtCharts/widget code and rewrite it all from scratch in QtGraphs/QML?
@AndyBrice said in Qt Graphs lacking functionalities - Axes range:
quickwidgetgraphs doesn't work, nothing happens when you click on the buttons:
The *.pro file is broken in Qt 6.10.0 (it's fixed for the next releases). Load the CMakeLists.txt and it will work.
I also suggest downloading the latest version of the example (it's not released yet so get it via git): https://github.com/qt/qtgraphs/tree/dev/examples/graphs/2d/quickwidgetgraphs This shows you how to use Qt Graphs without writing any QML code.
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I managed to get https://github.com/qt/qtgraphs/tree/dev/examples/graphs/2d/quickwidgetgraphs . It seems somewhat more convoluted than the QtCharts equivalent.
Is there going to be a simple migration path from QtCharts to QtGraphs?
How long is QtCharts going to be supported?
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I managed to get https://github.com/qt/qtgraphs/tree/dev/examples/graphs/2d/quickwidgetgraphs . It seems somewhat more convoluted than the QtCharts equivalent.
Is there going to be a simple migration path from QtCharts to QtGraphs?
How long is QtCharts going to be supported?
@AndyBrice said in Qt Graphs lacking functionalities - Axes range:
Is there going to be a simple migration path from QtCharts to QtGraphs?
I ported a simple app (where the data points were written in C++ but displayed in QML/Qt Quick) from Qt Charts to Qt Graphs in Qt 6.10.0. There were some differences in how we set up
ChartsViewvs.GraphsView, but I did not have to make any changes to my C++ code (QLineSeries).Note: There are differences in the C++ API too, but I hadn't used the parts that changed. Depending on the complexity of your existing code, migration could be simple.
I managed to get https://github.com/qt/qtgraphs/tree/dev/examples/graphs/2d/quickwidgetgraphs . It seems somewhat more convoluted than the QtCharts equivalent.
Can you please describe which part(s) you found more convoluted, and how it could be simplified?
How long is QtCharts going to be supported?
Qt Charts has been deprecated, meaning that it will no longer receive new features or minor bugfixes. However, it should continue to be available for the lifetime of Qt 6 (removed from Qt 7).
Qt Doc Search for browsers: forum.qt.io/topic/35616/web-browser-extension-for-improved-doc-searches
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@AndyBrice said in Qt Graphs lacking functionalities - Axes range:
Is there going to be a simple migration path from QtCharts to QtGraphs?
I ported a simple app (where the data points were written in C++ but displayed in QML/Qt Quick) from Qt Charts to Qt Graphs in Qt 6.10.0. There were some differences in how we set up
ChartsViewvs.GraphsView, but I did not have to make any changes to my C++ code (QLineSeries).Note: There are differences in the C++ API too, but I hadn't used the parts that changed. Depending on the complexity of your existing code, migration could be simple.
I managed to get https://github.com/qt/qtgraphs/tree/dev/examples/graphs/2d/quickwidgetgraphs . It seems somewhat more convoluted than the QtCharts equivalent.
Can you please describe which part(s) you found more convoluted, and how it could be simplified?
How long is QtCharts going to be supported?
Qt Charts has been deprecated, meaning that it will no longer receive new features or minor bugfixes. However, it should continue to be available for the lifetime of Qt 6 (removed from Qt 7).
@JKSH said in Qt Graphs lacking functionalities - Axes range:
Depending on the complexity of your existing code, migration could be simple.
Ok, thanks.
Can you please describe which part(s) you found more convoluted, and how it could be simplified?
It seems to have more classes involved. But it is a while since I looked at QtCharts.
Qt Charts has been deprecated, meaning that it will no longer receive new features or minor bugfixes. However, it should continue to be available for the lifetime of Qt 6 (removed from Qt 7).
Hopefully, it will still be supported in a Qt6Compat module in Qt 7.
