Highlight Y-Axis Accuracy is

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Using the highlight to add box dragging to your graph results in just inaccurate y-Axis area selection.

This can be seen in the documentation itself:
https://uber.github.io/react-vis/documentation/api-reference/brushing-and-dragging

As can be seen although I clearly selected a box between 0 and 20 on the y-axis, the recorded area is actually between -1.18 and 18.86. This difference has been causing me issues with higher fidelity data since I cannot accurately select the data I wish to view.

This lack of accuracy only occurs in the y-axis and in the x-axis the accuracy is far more acceptable.

Update:

I have found that the issue occurs due to the system taking into account the XYPlot's margin when calculating things like the drag location. This also effects the accuracy of the voronoi component. Since the default margin on a plot is {left: 40, right: 10, top: 10, bottom: 40} this meant I had to manually set the margin to 0.
As of now I am still unsure as to where or why the margin is taken into account and how it effects the calculation

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I have created a pr for this issue, though It does not solve the problems I have found with the Voronoi component