On 02/04/12 16:21, Jeff Whitaker wrote:
On 4/2/12 9:10 AM, Mathew Topper wrote:
Hi,

I've been trawling round the internet for a while trying to work out if basemap could be made to plot using a UTM zone projection. I've found some references to pyproj that could be used to convert out of a UTM projection, but I haven't found any references to defining a custom projection for basemap. Is it possible?

Also, there is not a lot of documentation regarding pyproj and I find this a little odd considering it comes packaged with basemap.

Many Thanks,

Mat


Mat: Basemap can plot in the tranverse mercator projection (projecton='tmerc') - UTM zones are transverse mercator with specific lat/lon boundaries and a WGS84 ellipsoid. I suppose I could add UTM zone support if there is enough demand for it.

-Jeff
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Jeffrey S. Whitaker         Phone  : (303)497-6313
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Sorry, somehow the bottom of the last email I sent was in a funny format. Sorry to everyone for spamming this, but just in case it wasn't legible, here it is again....

OK, thanks Jeff. So I just need to know the lon/lat bounds of the desired UTM zone and I have effectively created a UTM projection of that zone in basemap i.e. for UTM29 we have 12W to 6W. Will basemap then except coordinates in meters defined by UTM29 or do I have to convert to lon/lat first?

I have a bit of an interesting case where the region we are examining lies between UTM29 and UTM30, and I was interested in displaying how the change in projection effects the topography.

Thanks

Mat

--
Dr. Mathew Topper
Institute for Energy Systems
School of Engineering
The University of Edinburgh
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Tel: +44 (0)131 650 5570
School fax: +44 (0)131 650 6554
mathew.top...@ed.ac.uk <mailto:mathew.top...@ed.ac.uk>
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The University of Edinburgh is a charitable body, registered in
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