QtCharts : put min and max of y-axis manually
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Is it a good idea to pop up a dialog outside QChartView or by right click inside QChartView to set ranges of X-Y axes
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@joecfd Hello,thanks for your reply
yes why not it is an intermediate solution, but I wonder if it is possible to change the values directly on the ChartView :) -
You are probably looking for this QAbstactAxis#setRange.
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@pl45m4
yes absolutely i need to use QAbstactAxis#setRange from the view.For this I guess that I have to use paintEvent, to draw a LineEdit for the min and max, like this I can put the new min/max .
@halima said in QtCharts : put min and max of y-axis manually:
For this I guess that I have to use paintEvent, to draw a LineEdit for the min and max, like this I can put the new min/max
No. Just get your current Y-Axis from your QChart and set your values as new range (Min, Max).
QAbstractAxis *yAxis = myChart->axis(Qt::Vertical); // Only works, if you have 1 series, otherwise you have to pass the series after the orientation yAxis->setRange(min, max);
If debugging is the process of removing software bugs, then programming must be the process of putting them in.
~E. W. Dijkstra
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@halima said in QtCharts : put min and max of y-axis manually:
For this I guess that I have to use paintEvent, to draw a LineEdit for the min and max, like this I can put the new min/max
No. Just get your current Y-Axis from your QChart and set your values as new range (Min, Max).
QAbstractAxis *yAxis = myChart->axis(Qt::Vertical); // Only works, if you have 1 series, otherwise you have to pass the series after the orientation yAxis->setRange(min, max); -
@pl45m4
Thanks for your help and reply :)
I think I'm not explained my problem well. my problem is more in the HMI. how can I write the min and max that I want in the Qchartview to pass them to QAbstactAxis#setRange.
There is no function / GUI object inside QChart / QChartView to set the range of the axis directly, but you could use QSliders to adjust the range (maybe horizontal slider for X-Axis and vertical slider for Y-Axis).
If debugging is the process of removing software bugs, then programming must be the process of putting them in.
~E. W. Dijkstra
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