[Proj] Natural Earth projection

[Mikael Rittri]

Hello Gerald. Nice to hear from you again.

I agree that NE looks very much like Robinson or Winkel triple.

However, I think you read the name out of context.
It refers to (alludes to?) the free dataset Natural Earth,
see http://www.naturalearthdata.com

Regards,

Mikael Rittri
Carmenta
Sweden
http://www.carmenta.com

4 mar 2012 kl. 03:02 skrev "Gerald I. Evenden" <geraldi.evenden at gmail.com<mailto:geraldi.evenden at gmail.com>>:

My interest in projections has waned and I only get this email list because I am too lazy to cut it off.  However this projection caught my eye for a couple of reasons: 1) it is only a slight and insignificant rehash of existing projections but, more importantly, 2) the presumptuousness of calling it the "Natural Earth." Oh please!!

Alas.

On Sat, Mar 3, 2012 at 7:51 PM, Norman Vine <<mailto:nhv at cape.com>nhv at cape.com<mailto:nhv at cape.com>> wrote:

On Feb 24, 2012, at 6:02 PM, Bernhard Jenny wrote:

I would like to suggest the inclusion of the Natural Earth projection in PROJ.4. Natural Earth is a new projection for small-scale world maps. Here is more information on the projection:
<http://www.shadedrelief.com/NE_proj/>http://www.shadedrelief.com/NE_proj/

This recent article in Cartography and Geographic Information Science describes the development of the projection and its equations:
<http://cartography.oregonstate.edu/pdf/2011_Savric_etal_PolynomialNaturalEarth.pdf>http://cartography.oregonstate.edu/pdf/2011_Savric_etal_PolynomialNaturalEarth.pdf

Here is C code ready to be included in PROJ.4:
<http://www.shadedrelief.com/NE_proj/natural_earth_proj.zip>http://www.shadedrelief.com/NE_proj/natural_earth_proj.zip

I suggest the following entry for pj_list.h:
PROJ_HEAD(natearth, "Natural Earth")

Best regards,
Bernie

Bernhard Jenny
Assistant Professor
Cartography and Geovisualization
Oregon State University
<mailto:jennyb at geo.oregonstate.edu>jennyb at geo.oregonstate.edu<mailto:jennyb at geo.oregonstate.edu>
<http://cartography.oregonstate.edu/>http://cartography.oregonstate.edu/

Bernie

Frank has added this projection see
<http://trac.osgeo.org/proj/changeset/2182>http://trac.osgeo.org/proj/changeset/2182

Perhaps you could add some documentation to
<http://trac.osgeo.org/proj/wiki/ProjList>http://trac.osgeo.org/proj/wiki/ProjList

Thanks

Norman


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