<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><br><div><div>On Feb 24, 2012, at 6:02 PM, Bernhard Jenny wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>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:<br><a href="http://www.shadedrelief.com/NE_proj/">http://www.shadedrelief.com/NE_proj/</a><br><br>This recent article in Cartography and Geographic Information Science describes the development of the projection and its equations:<br>http://cartography.oregonstate.edu/pdf/2011_Savric_etal_PolynomialNaturalEarth.pdf<br><br>Here is C code ready to be included in PROJ.4:<br>http://www.shadedrelief.com/NE_proj/natural_earth_proj.zip <br><br>I suggest the following entry for pj_list.h:<br>PROJ_HEAD(natearth, "Natural Earth")<br><br>Best regards,<br>Bernie<br><br>Bernhard Jenny<br>Assistant Professor<br>Cartography and Geovisualization<br>Oregon State University<br>jennyb@geo.oregonstate.edu<br>http://cartography.oregonstate.edu/<br></div></blockquote><div><br></div><div>Bernie</div><div><br></div><div>Frank has added this projection see</div><div><a href="http://trac.osgeo.org/proj/changeset/2182">http://trac.osgeo.org/proj/changeset/2182</a></div><div><br></div><div>Perhaps you could add some documentation to </div><div><a href="http://trac.osgeo.org/proj/wiki/ProjList">http://trac.osgeo.org/proj/wiki/ProjList</a></div><div><br></div><div>Thanks</div><div><br></div><div>Norman</div><div><br></div></div></body></html>