Jeff,
When putting a legend on a basemap plot, I find that the legend command
picks up the coastline line collection and gives it an uninformative
label. I suspect this is rarely what one wants. Two suggestions:
1) In drawcoastlines, use "coastlines.set_label('_nolabel_') to suppress
inclusion in the legend, and similarly for drawcountries, etc.
2) Make drawcoastlines return the line collection that it creates.
Similarly, drawcountries could return the line collection,
fillcoastlines could return the list of patches, etc. Drawparallels and
drawmeridians are a little more complicated because they make the labels
as well as the lines, so I am not sure what to do with them.
Granted, one can grab the reference to the line collection from the end
of ax.collections, but it seems cheap, reasonable, and more convenient
to simply have it returned by the command that makes it.
Eric
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