Re: [Matplotlib-users] drawmapscale() and 'cyl' projection [SEC=UNCLASSIFIED]

[Jeff W. <js...@fa...>]

Ros...@ga... wrote:
> Hi all,
>
> Sorry if this has been discussed before, but I can't find any previous threads on this.
>
> I'm trying to draw a scale on an equidistant cylindrical projection, and I'm seeing a ValueError exception with the message:
>     Cannot draw map scale for projection='cyl'
>
> And indeed, in basemap/__init__.py (about line 3286, 0.99.4) there is an explicit test for the 'cyl' projection and a raise of the above exception.
>
> Maybe I'm just extra ignorant today, but why *shouldn't* a scale be drawn on a 'cyl' projection????
>
> Thanks,
> Ross
>   
Ross: Because a cylindrical projection isn't really a projection at all 
- it's just a lat/lon coordinate system.

-Jeff

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