ST_Circle

Description

Syntax

GEOMETRY ST_Circle(DOUBLE center_lng, DOUBLE center_lat, DOUBLE radius)

Convert a WKT (Well Known Text) into a circle on the earth’s sphere. Where center_lng'denotes the longitude of the center of a circle, Center_latdenotes the latitude of the center of a circle, radius denotes the radius of a circle in meters.

example

1. mysql> SELECT ST_AsText(ST_Circle(111, 64, 10000));
2. +--------------------------------------------+
3. | st_astext(st_circle(111.0, 64.0, 10000.0)) |
4. +--------------------------------------------+
5. | CIRCLE ((111 64), 10000)                   |
6. +--------------------------------------------+

keyword

ST_CIRCLE,ST,CIRCLE