path.toString() Returns the string representation of this path according to SVG’s path data specficiation.

path.rect(x, y, w, h) Creates a new subpath containing just the four points ⟨x, y⟩, ⟨x + w, y⟩, ⟨x + w, y + h⟩, ⟨x, y + h⟩, with those four points connected by straight lines, and then marks the subpath as closed. Equivalent to context.rect and uses SVG’s “lineto” commands.

path.quadraticCurveTo(cpx, cpy, x, y) Draws a quadratic Bézier segment from the current point to the specified point ⟨x, y⟩, with the specified control point ⟨cpx, cpy⟩. Equivalent to context.quadraticCurveTo and SVG’s quadratic Bézier curve commands.

path.projection([projection]) If a projection is specified, sets the current projection to the specified projection. If projection is not specified, returns the current projection, which defaults to null. The null projection represents the identity transformation: the input geometry is not projected and is instead rendered directly in raw coordinates. This can be useful for fast rendering of pre-projected geometry, or for fast rendering of the equirectangular projection. The given projection

path.pointRadius([radius]) If radius is specified, sets the radius used to display Point and MultiPoint features to the specified number. If radius is not specified, returns the current radius accessor, which defaults to 4.5. While the radius is commonly specified as a number constant, it may also be specified as a function which is computed per feature, being passed the any arguments passed to the path generator. For example, if your GeoJSON data has additional properties, you might access

path.moveTo(x, y) Move to the specified point ⟨x, y⟩. Equivalent to context.moveTo and SVG’s “moveto” command.

path.lineTo(x, y) Draws a straight line from the current point to the specified point ⟨x, y⟩. Equivalent to context.lineTo and SVG’s “lineto” command.

path.context([context]) If context is specified, sets the current render context and returns the path generator. If the context is null, then the path generator will return an SVG path string; if the context is non-null, the path generator will instead call methods on the specified context to render geometry. The context must implement the following subset of the CanvasRenderingContext2D API: context.beginPath() context.moveTo(x, y) context.lineTo(x, y) context.arc(x, y, radius, startAng

path.closePath() Ends the current subpath and causes an automatic straight line to be drawn from the current point to the initial point of the current subpath. Equivalent to context.closePath and SVG’s “closepath” command.

path.centroid(object) Returns the projected planar centroid (typically in pixels) for the specified GeoJSON object. This is handy for, say, labeling state or county boundaries, or displaying a symbol map. For example, a noncontiguous cartogram might scale each state around its centroid. This method observes any clipping performed by the projection; see projection.clipAngle and projection.clipExtent.