pyqtgraph widget.addLine change color/width
I want to use the widget function addLine. In my case it is as following:
widget.addLine(x=None, y=0.8) #endless horizontal line
Now i want to change the color and width of this line, but i cannot find a fitting function.
Is there something available to do this?
Additional, is there a similar function to "add a circle" instead of a line?
Answer
Changing the color and width of the line is simple enough using the mkPen() function.
As you have not provided all of your code here is a simple demo:
import pyqtgraph as pg
y=[1,1,1,1,1]
pg.plot(y, pen=pg.mkPen('b', width=5))
Which draws a blue line with width 5. See the pyqtgraph documentation here
This would also work for the addLine() method you referenced in the question, e.g. widget.addLine(x=None, y=0.8, pen=mkPen('r', width=3))
As for your second question, looking at the pyqtgraph docs there doesn't appear to be a method that draws a circle.
