World Maps

Click Here for Vector Map (94 KB)

The Werner Cordiform (heart-shaped) projection§ was devised by Johannes Stabius and popularized by Johannes Werner about 1514. The Werner projection is the “polar limiting form” of the more general Bonne projection with the North Pole serving as the equivalent of a standard parallel. It is a pseudoconical equal-area class of maps. The central meridian is a straight line, chosen here at 30° West longitude near the center of the North Atlantic Ocean. Other meridians are complex curves. Parallels are concentric circular arcs, and the poles are represented as points. The Werner projection was used in the late sixteeth century for maps of Asia and Africa by Mercator and Abraham Ortelius.

Projected by Ptolemy from the Central Intelligence Agency Micro World Database.

§John P. Snyder, Map Projections--A Working Manual; U.S.G.S Professional Paper 1395, U.S. Government Printing Office: Washington, D.C. 1987, pp. 138-139

Werner Cordiform

Scroll down for description.

Click East for next map.

Click North to return to list.

If you don’t have Whip! you can still see the JPGs, but to fully appreciate these engineering-quality maps, download and install the free Whip! viewer plug-in (3.5MB). You will then be able to see the scalable vector versions of select maps.

Click on the Vector Map link on each page to view the DWF file. You can pan around and zoom in on them, because they are true scaleable vector drawings. Using the Right Click menu, you can even turn layers on and off individually.

The extreme precision and detail of these maps cannot be reproduced in raster formats. The world maps are designed to be plotted at sizes up to 24” by 36” by robotic pen plotter. Some of the oil and gas maps were designed to be viewed up close when plotted at 300 dpi, at sizes up to 3 feet by 10 feet. The size of a BMP file of that scale would be approximately 1.5 gigabytes.

If you don’t have Whip! you can still see the JPGs, but to fully appreciate these engineering-quality maps, download and install the free Whip! viewer plug-in (3.5MB). You will then be able to see the scalable vector versions of select maps.

Click on the Vector Map link on each page to view the DWF file. You can pan around and zoom in on them, because they are true scaleable vector drawings. Using the Right Click menu, you can even turn layers on and off individually.

If you have limited bandwidth, be aware that the DWF files contained in this site range from about 100KB to about 750KB.