How to get the current position of the mouse on PlotWidget?

[song whale]

Hello. I'm trying to get the coordinates of the mouse when clicked. 

I get some values, but they don't correspond to the bar items on the widget. 

I'd like to know what I did wrong and what should be fixed.

Please take a look at the code that I attached.

[Patrick]

Hi,

I think you may just need to convert the pixel ("scene") coordinates to the plot ("view") coordinates. There's a function to do this in ViewBox:

https://pyqtgraph.readthedocs.io/en/latest/graphicsItems/viewbox.html#pyqtgraph.ViewBox.mapSceneToView

Typically, it might be used something like:

mousePoint = self.plot.getViewBox().mapSceneToView(pos)

where pos is a tuple of the scene coordinates, eg. the (110, 620) you are receiving from the event.

Patrick