<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Thu, Jul 18, 2013 at 1:41 AM, Dane Springmeyer <span dir="ltr"><<a href="mailto:dane@dbsgeo.com" target="_blank">dane@dbsgeo.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word">Chris,<div><br></div><div>It would be helpful to explain what you've tried already. Mapnik supports proj4 and proj4 understands quite a few projections. I'm no expert in equirectangular projections but <a href="https://en.wikipedia.org/wiki/Equirectangular_projection" target="_blank">https://en.wikipedia.org/wiki/Equirectangular_projection</a> states that this is basically a term for the well know set of lon/lat based geographic coordinate systems.</div>
<div><br></div><div>So, can you try simply changing your Mapnik Map `srs` value to EPSG:4326 or a specific Equidistant cylindrical projection like <a href="http://spatialreference.org/ref/epsg/3786/" target="_blank">http://spatialreference.org/ref/epsg/3786/</a></div>
<div><br></div><div>The specific Mapnik Map XML syntax can be found by following the link for "Mapnik XML" like:</div><div><br></div><div><a href="http://spatialreference.org/ref/epsg/3786/mapnik/" target="_blank">http://spatialreference.org/ref/epsg/3786/mapnik/</a></div>
</div></blockquote><div><br></div><div>I don't think Chris' problem is setting the appropriate projection in Mapnik.<br><br></div><div>What he needs is a way to distort the elements on the map (like text) such that if the map is used as a bitmap texture for a spherical 3D model, the map elements don't look distorted.<br>
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