Any way to control shapefile alpha? about basemap HOT 2 CLOSED

Hi @guidocioni! I was looking at the code and in effect the alpha argument is not available in readshapefile. However, I was testing with the underlying LineCollection call inside readshapefile and of course this is possible, so the limitation comes from the basemap side.

Maybe it is a good idea to include it for basemap 1.4.0 so that it is more user-friendly. In the meantime, one workaround for you would be to provide the color argument as a 4-value tuple, e.g. (R, G, B, A), where A is the opacity. The four values should be between 0 and 1.

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yeah, few minutes after opening the issue I realized you can pass a rgba array as color so it was easy to change the alpha there.
I don't think there's any need to introduce an alpha keyword argument If you can control the alpha in the color

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