Cahill-Keyes map projection d3v4 [UNLISTED]
Cahill-Keyes map projection (I modified Waterman butterfly projection in the geo.polyhedron D3 plugin to have incisions at 17° (Thanks Jason for the great inspiration!).
Gene Keyes’s first 5 principles:
- principal format to an M-shape, joined at south Atlantic
- principal dividing meridian to 20° W
- incisions at equator and poles at 17°
- proportionality of geocells
- circular parallels for the polar regions
The last principle to take care of is:
- re-assemble and attach Antartica. ()
The colouring is inspired (i.e. adapted…ok copied! This is just building on Giants’ shoulders: Mike called it For example ;-) from Mike’s World Map.
The rendering of Tropic of Cancer/Capricorn and Arctic/Antartic Circle are inspired by Jason’s Bartholomew’s Regional Projection.
forked from espinielli‘s block: Cahill-Keyes map projection