ST_LineFromText,ST_LineStringFromText

将 WKT（众所周知的文本）转换为线形式的内存表示。

语法

GEOMETRY ST_LineFromText(VARCHAR wkt)

示例

MySQL > SELECT ST_AsText(ST_LineFromText("LINESTRING (1 1, 2 2)"));
+---------------------------------------------------------+
| st_astext(st_linefromtext('LINESTRING (1 1, 2 2)'))     |
+---------------------------------------------------------+
| LINESTRING (1 1, 2 2)                                   |
+---------------------------------------------------------+

关键词

ST_LINEFROMTEXT,ST_LINESTRINGFROMTEXT,ST,LINEFROMTEXT,LINESTRINGFROMTEXT