--- { "title": "`ST_Circle`", "language": "en" } --- # `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_lat` denotes the latitude of the center of a circle, radius` denotes the radius of a circle in meters. ## example ``` mysql> SELECT ST_AsText(ST_Circle(111, 64, 10000)); +--------------------------------------------+ | st_astext(st_circle(111.0, 64.0, 10000.0)) | +--------------------------------------------+ | CIRCLE ((111 64), 10000) | +--------------------------------------------+ ``` ## keyword ST_CIRCLE,ST,CIRCLE