| --- |
| { |
| "title": "ST_CIRCLE", |
| "language": "en" |
| } |
| --- |
| |
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| |
| ## 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) | |
| +--------------------------------------------+ |
| ``` |
| ### keywords |
| ST_CIRCLE,ST,CIRCLE |
