OK with the other SO link I actually understand this is the “wrap around” problem, which I did not appreciate from your initial post. I am not really surprised that Bokeh (and other tools) do not handle the wrap-around case very well. I don’t offhand have any suggestions for you, unfortunately. It would be reasonable to make a GitHub issue about this, but couldn’t begin to speculate when it might be looked at (there are no GIS experts on the Bokeh core team that I am aware of, and I am skeptical that this has a quick/easy fix).