How can make a curve in Qt with values from MySQL
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Hello Forum,
i have a question about curve´s in Qt. In the docu i don´t find antything. Have anybody a idea that i can do this?
I have a picture from a another software with curve´s.!http://imageshack.com/a/img849/6493/qilv.png(Curve)!
Salute
Alex from Germany
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Hi, you can draw curves from your mysql data by using QPainter.
Have a look at the QPainter Class and there are several examples that maybe useful for your task. -
Qwt is also a great plotting library. I use it for both static and real-time plotting.
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[quote author="dvez43" date="1395231338"]Qwt is also a great plotting library. I use it for both static and real-time plotting.
http://qwt.sourceforge.net/[/quote]
Habe you a simple description for use this?
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"Download":http://qwt.sourceforge.net the project from the website and look at the examples directory. There should be plenty there for you to go off from.
- Construct the plot
- Add any legends or anything you want to add to the canvas
- Set your data points into the plot
- Set your plot to auto scale or set the scale to how you want it
The docs are great for it.
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I have found a Video by YouTube. Is this the right way to install qwt?
"Youtube":http://www.youtube.com/watch?v=ZqFKwF6q7jQ