Polygon

The positions at which the polygon is located. Each nested array corresponds to one linear ring.

Initializes a polygon defined by the given positions.

This initializer is equivalent to the polygon function in the turf-helpers package of Turf.js (source code).

Initializes a polygon defined by the given linear rings.

Initializes a polygon as a given center coordinate with a given number of vertices, as a means to approximate a circle.

This initializer is equivalent to the turf-circle package of Turf.js (source code).

Representation of Polygons coordinates of inner rings

Representation of Polygons coordinates of outer ring

The polygon’s area.

This property is equivalent to the turf-area package of Turf.js (source code).

Returns whether the given coordinate falls within the polygon and outside of its interior rings.

This method is equivalent to the turf-boolean-point-in-polygon package of Turf.js (source code).

Returns the polygon with corners smoothed out using Chaikin’s algorithm.

This method is equivalent to the turf-polygon-smooth package of Turf.js (source code).

Returns a copy of the polygon simplified using the Ramer–Douglas–Peucker algorithm.

This method is equivalent to the turf-simplify package of Turf.js (source code).

Simplifies the polygon in place using the Ramer–Douglas–Peucker algorithm.

This method is nearly equivalent to the turf-simplify package of Turf.js (source code), except that it mutates the polygon it is called on.

Calculates the absolute center of the bounding box.

This property is equivalent to the turf-center package of Turf.js (source code).

Calculates the centroid using the mean of all vertices.

Compared to center and centerOfMass, the centroid is less affected by small islands and artifacts.

This property is equivalent to the turf-centroid package of Turf.js (source code).

Calculates the center of mass using the centroid of polygon formula.

This property is equivalent to the turf-center-of-mass package of Turf.js (source code).