stream.polygonStart() Indicates the start of a polygon. The first line of a polygon indicates the exterior ring, and any subsequent

d3.geoBounds(feature) Returns the spherical

project.invert(x, y) The inverse of project

graticule.extentMajor([extent]) If extent is specified, sets the major extent of this graticule. If extent

d3.geoLength(feature) Returns the great-arc length of the specified GeoJSON feature in

graticule.lines() Returns an array of GeoJSON LineString geometry objects, one for each meridian or parallel for this graticule

graticule.precision([angle]) If precision is specified, sets the precision for this graticule, in degrees.

d3.geoConicConformal() d3.geoConicConformalRaw(phi0, phi1)

d3.geoAzimuthalEquidistant() d3.geoAzimuthalEquidistantRaw

stream.sphere() Indicates the sphere (the globe; the unit sphere centered at ⟨0,0,0⟩).