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<https://lh3.googleusercontent.com/-QtJVXp2uqAY/WqArW2O3glI/AAAAAAAABnY/ZxH0b7RIS9YaAYeSrFVq5fKRK99wNqnvwCLcBGAs/s1600/snapshot2.png>
In the plot attached, the f1 and f2 spin boxes are showing the tuple values 
of the linearRegionItem.getRegion() call.  They apparently show the power 
of the the boundries, and not the actual value of the boundary as 
expected.  

A similar thing happens when adding a linearregionitem to a plotwidget

lri = LinearRegionItem(values=[1,2], orientation='vertical')
myplot.setLogMode(x=True, y=True)
myplot.addItem(lri)

will make a linearregionitem that goes from 10 to 100 

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