d3.geoProjectionMutator(factory) Constructs a new projection from the specified

d3.geoPath([projection[, context]]) Creates a new geographic path generator with the default settings. If projection

d3.geoProjection(project) Constructs a new projection from the specified

d3.geoBounds(feature) Returns the spherical

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

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

d3.geoGraticule() Constructs a feature generator for creating graticules: a uniform grid of

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

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

graticule.step([step]) If step is specified, sets the major and minor step for this graticule. If step