Classes
Methods
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module:ol/geom/Polygon.circular(center, radius, opt_n, opt_sphereRadius){module:ol/geom/Polygon~Polygon}
geom/Polygon.js, line 348 -
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.
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module:ol/geom/Polygon.fromCircle(circle, opt_sides, opt_angle){module:ol/geom/Polygon~Polygon}
geom/Polygon.js, line 386 -
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.
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Create a polygon from an extent. The layout used is
XY
.Name Type Description extent
module:ol/extent~Extent The extent.
Returns:
The polygon.