stream.polygonStart() Indicates the start of a polygon. The first line of a polygon indicates the exterior ring, and any subsequent
stream.sphere() Indicates the sphere (the globe; the unit sphere centered at ⟨0,0,0⟩).
stream.lineStart() Indicates the start of a line or ring. Within a polygon, indicates the start of a ring. The first ring of
graticule.extentMinor([extent]) If extent is specified, sets the minor extent of this graticule. If extent
d3.geoPath([projection[, context]]) Creates a new geographic path generator with the default settings. If projection
d3.geoBounds(feature) Returns the spherical
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
projection(point) Returns a new array [x, y] (typically in pixels) representing the projected point of the
d3.geoProjection(project) Constructs a new projection from the specified
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