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I can't find anything about how to embed plotting into Qt by using C++. Which component in Qt should be used for plotting?

I want to grasp the thing generated by these lib and display it using Qt.

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I have a working example at this blogpost combining embedded R with Qt. I used both SVG and PNG graphs, though the current version only uses SVG.

The repository is here, if you rewind a commit or two you get the version that flips between SVG and PNG (depending on whether a particular can be loaded).

You should be able to use the logic to show plots from either plplot or matplotlib.

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I think it's overkilled. I just want to grasp the thing generated by this lib and display it on qt.
That is precisely what my app shows you: instantiate a widget, point it to a file, get display of the file.
I see that embed whole R language. can't I just display it immediately?
can I just display it without any file outputed?
You do not need R, that is simply my example of generating a file. Given a file, from where ever it comes, you can have Qt display it.
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