Additional Datasets

By
Dave
Project
Published
27 Aug 2013 22:23
Last Modified
16 Sep 2013 17:05
I wanted to add some additional content to the project, and from a geographic-perspective a set of airline flight paths was a convenient choice, as shown below in Figure 1. Note that the routes are plotted as minor arcs of great circles rather than actual flight-paths, and that the height has been exaggerated for clarity.

Globe flight pathsGlobe flight paths

Figure 1. Flight-path1 data plotted over earth-lights2, filtered by airline as British Airways. Shown in both color and red-cyan anaglyph.

One of the implications of this was that I had to implement the a tile-based earth-renderer for sufficient levels of detail. Fortunately I already had some code for this from another project which required minimal modification.

1Airport, airline and route data credit OpenFlights.

2Earth light data from image created using Suomi NPP VIIRS (http://npp.gsfc.nasa.gov/viirs.html) data provided courtesy of Chris Elvidge (NOAA National Geophysical Data Center, http://www.ngdc.noaa.gov/dmsp/dmsp.html). Suomi NPP is the result of a partnership between NASA, NOAA, and the Department of Defense. Caption by Mike Carlowicz.

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