I'm trying to generate rose plots (circular histograms) using MPL but

have been unable to find a straight forward way to do it. I want to

take the polar_bar.py example and modify it to use the geographic

rather than the mathematical convention for measuring angles, that is

0 is at the top of the plot and increasing clockwise. It seems like

this should be possible using Transformations but I am at a loss for

how to begin. Any hints would be greatly appreciated.

Thanks,

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Jed Frechette

jdfrechette.alturl.com