OpenGL interactive map projection and navigation for MS® Windows and Linux. 0.1.2b Screenshot 0.1.5a Screenshot 1 0.1.5a Screenshot 2 0.1.5a Screenshot 3 The world map has been re-drawn using the NASA Visible Earth Blue Marble images http://visibleearth.nasa.gov. The vector lines were drawn over a Mercator projection of the Land Shallow Topo data set at 13000×13000 pixles. The image was split into four quadrants: NE, NW, SE, SW. A screenshot of part of the NW quadrant (reduced by 50 %) is here. Another screenshot of the SE quadrant, (enlarged by 200 %) is here. The map is drawn using straight line segments for rendering in OpenGL. The intention is to make it accurate whilst keeping the vertex count to a minimum. The Antarctic continent was generated from both the Blue Marble data and from a Polar Stereographic projection by the Australian Antarctic Data Center which was downloaded from Google images. An inverse Stereographic projection with true scale at 71° South was performed back to the reference ellipsoid, this generated vertices for both land and sea ice. To verify the accuracy of the projection, the map generated by Geodysseus was superimposed on the one generated by Australian Antarctic Data Center. You can view this here. The sea ice is drawn with dashed lines. Development version for Windows 32 bit systems. Md5sum = a251900e0407ec1339244dda012aa8c5 12th October 2011 10:42 BST. Install instructions. Source.