选区_002.png
As the image above，a black curve is shadowed by filling area， what should I do to make it clear as there is no filling area as the image below？
It seems to refer to layers. Is there any suggestion?
选区_003.png
Intermediate user
Filling area covers curve。
选区_002.png
As the image above，a black curve is shadowed by filling area， what should I do to make it clear as there is no filling area as the image below？
It seems to refer to layers. Is there any suggestion?
选区_003.png
Expert
Re: Filling area covers curve。
As long as you don't set a valid curve brush nothing gets filled below a curve. Note, that Qt::NoBrush is the default and something in your code should be responsible for the filling area.
Uwe
Intermediate user
Re: Filling area covers curve。
In fact ，I have to set brush to fill curves， any other suggestion？
Expert
Re: Filling area covers curve。
Wasn't your question about how to disable the curve filling in the first picture to have something like in the second one ?
Uwe
Intermediate user
Re: Filling area covers curve。
No，my question is how to make the curve within the filling area to be clear as the second image。The curve in filling area is blurred due to the filling area。
Expert
Re: Filling area covers curve。
Plot items are painted in z order - see QwtPlotItem::setZ().
Uwe
Intermediate user
Re: Filling area covers curve。
o，I see ， thank you
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