Latitude-longitude grid at interval 30 degrees
Colored gall world vector map. PDF, EPS, JPG, SVG, WMF, AI format (see download link) It is a cylindrical projection with two standard parallels at latitudes 45° N and S.  The globe is projected perspectively onto a secant cylinder from the point on the equator opposite a given meridian. Meridians are equally spaced straight lines. Parallels are straight lines with spacing increasing away from the equator. Poles are straight lines.

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Colored gall world vector map