d3.geoChamberlinAfrica() The Chamberlin projection for Africa using points [0°, 22°], [45°, 22°], [22.5°, -22°].

d3.geoChamberlin(point0, point1, point2) d3.geoChamberlinRaw(p0, p1, p2) The Chamberlin trimetric projection. This method does not support projection.rotate: the three reference points implicitly determine a fixed rotation.

d3.geoCentroid(feature) Returns the spherical centroid of the specified GeoJSON feature. See also path.centroid, which computes the projected planar centroid.

d3.geoBromley() d3.geoBromleyRaw The Bromley projection is a rescaled Mollweide projection.

d3.geoBounds(feature) Returns the spherical bounding box for the specified GeoJSON feature. The bounding box is represented by a two-dimensional array: [[left, bottom], [right, top]], where left is the minimum longitude, bottom is the minimum latitude, right is maximum longitude, and top is the maximum latitude. All coordinates are given in degrees. (Note that in projected planar coordinates, the minimum latitude is typically the maximum y-value, and the maximum latitude is typically the mini

d3.geoBottomley() d3.geoBottomleyRaw(sinPsi) The Bottomley projection “draws lines of latitude as concentric circular arcs, with arc lengths equal to their lengths on the globe, and placed symmetrically and equally spaced across the vertical central meridian.”

d3.geoBonne() d3.geoBonneRaw(phi0) The Bonne pseudoconical equal-area projection. The Werner projection is a limiting form of the Bonne projection with a standard parallel at ±90°. The default center assumes the default parallel of 45° and should be changed if a different parallel is used.

d3.geoBoggs() d3.geoBoggsRaw The Boggs eumorphic projection. More commonly used in interrupted form.

d3.geoBerghaus() d3.geoBerghausRaw(lobes) Berghaus’ star projection. The default center assumes the default lobe number of 5 and should be changed if a different number of lobes is used. Note: requires clipping to the sphere.

d3.geoBaker() d3.geoBakerRaw The Baker Dinomic projection.