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[CF-metadata] Additional projections for CF

From: Philip Bentley <philip.bentley>
Date: Wed, 21 May 2008 09:20:57 +0100

Hi Ethan,

An obvious one perhaps, but one which we may find increasingly useful /
relevant in light of the rise and rise of GoogleEarth-type applications,
is the Orthographic projection. This being the classic 'view from space'
projection.

Same grid mapping parameters as the other azimuthal projections, viz.

grid_mapping_name = "orthographic"

longitude_of_projection_origin
latitude_of_projection_origin
false_easting
false_northing

(though off the top of my head I can't think of a scenario where one
would want to use the last two params).

Regards,
Phil

On Tue, 2008-05-20 at 16:43 -0600, Ethan Davis wrote:

> Hi all,
>
> A while back I started writing a change proposal to add new types of
> projections to the grid mapping section (on the wiki at
> http://cf-pcmdi.llnl.gov/trac/wiki/GridMapNames). The draft proposal
> currently only includes Mercator. Does anyone have other projections
> that aren't yet in CF that you would like added?
>
> Thanks,
>
> Ethan
>
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