The Tetrahedral Gnomonic projection, published by A. J. Potter in The Geographical Teacher, Vol. 13, No. 1 (SPRING, 1925), pp. 52-56.
Using d3.geoPolyhedral on the tetrahedron
Gnomonic projection on each face
This is the original aspect given in Potter (1925); others might be interesting, such as the Antarctic aspect and the Continental Earth aspect.
There’s a bug in this aspect: land and ocean are inversed. This should be solved by polygon cutting.
Research by Philippe Rivière for d3-geo-projection issue 107.
forked from Fil‘s block: Tetrahedral Gnomonic projection