Module: ol/geom/Polygon

Classes

Polygon

Methods

module:ol/geom/Polygon.circular(center, radius, opt_n, opt_sphereRadius){module:ol/geom/Polygon~Polygon}

geom/Polygon.js, line 348

import {circular} from 'ol/geom/Polygon';

Create an approximation of a circle on the surface of a sphere.

Name	Type	Description
center	module:ol/coordinate~Coordinate	Center ([lon, lat] in degrees).
radius	number	The great-circle distance from the center to the polygon vertices.
n	number	Optional number of vertices for the resulting polygon. Default is 32.
sphereRadius	number	Optional radius for the sphere (defaults to the Earth's mean radius using the WGS84 ellipsoid).

Returns:

The "circular" polygon.

module:ol/geom/Polygon.fromCircle(circle, opt_sides, opt_angle){module:ol/geom/Polygon~Polygon}

geom/Polygon.js, line 386

import {fromCircle} from 'ol/geom/Polygon';

Create a regular polygon from a circle.

Name	Type	Description
circle	module:ol/geom/Circle~Circle	Circle geometry.
sides	number	Number of sides of the polygon. Default is 32.
angle	number	Start angle for the first vertex of the polygon in radians. Default is 0.

Returns:

Polygon geometry.

module:ol/geom/Polygon.fromExtent(extent){module:ol/geom/Polygon~Polygon}

geom/Polygon.js, line 366

import {fromExtent} from 'ol/geom/Polygon';

Create a polygon from an extent. The layout used is XY.

Name	Type	Description
extent	module:ol/extent~Extent	The extent.

Returns:

The polygon.