d3.geoFahey() d3.geoFaheyRaw The Fahey pseudocylindrical projection.

d3.geoEckert3() d3.geoEckert3Raw The Eckert III projection.

d3.geoEckert4() d3.geoEckert4Raw The Eckert IV projection.

d3.geoEckert6() d3.geoEckert6Raw The Eckert VI projection.

d3.geoEckert5() d3.geoEckert5Raw The Eckert V projection.

d3.geoCylindricalStereographic() d3.geoCylindricalStereographicRaw(phi0) The cylindrical stereographic projection. Depending on the chosen parallel, this projection is also known as Braun’s stereographic (0°) and Gall’s stereographic (45°).

d3.geoEckert1() d3.geoEckert1Raw The Eckert I projection.

d3.geoEckert2() d3.geoEckert2Raw The Eckert II projection.

d3.geoDistance(a, b) Returns the great-arc distance in radians between the two points a and b. Each point must be specified as a two-element array [longitude, latitude] in degrees.

d3.geoCraig() d3.geoCraigRaw(phi) The Craig retroazimuthal projection. Note: this projection tends to fold over itself if the standard parallel is non-zero; we have not yet implemented the necessary advanced clipping to avoid overlap.