I'm plotting a bunch of lines on a map.  They're being colored  
according to the value of an attribute associated with the objects  
they represent, using a colormap.  However, I also need to create a  
colorbar to act as a legend, describing what the colors of the lines  
means, in terms of values associated with that attribute.

What's the easiest way to do that?

I know what the upper and lower bounds of the values that need to be  
represented in the colorbar are, but I don't see any way to just slap  
a generic colorbar on the figure and give it some tick marks  
corresponding to the values I know the colors represent.

I have a list of all the Line2D objects in the map, but I can't pass  
them to colorbar() as the 'mappable' parameter without getting:

AttributeError: 'Line2D' object has no attribute 'autoscale_None'

It seems like this is something that should be trivially easy, but I  
don't see how to do it in the documentation anywhere.

Thanks for any insight you might have...

Zane

--
Zane Selvans
Amateur Earthling
[EMAIL PROTECTED]
303/815-6866
http://zaneselvans.org
PGP Key: 55E0815F







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