https://dev.mysql.com/gis-linestring-property-functions.html
For a MultiLineString value ls, ST_IsClosed() returns 1 if ls is closed (that is, the ST_StartPoint() and ST_EndPoint() values are the same for each LineString in ls). The length of a MultiLineString value is equal to the sum of the lengths of its ...You can extract particular points of a LineString, count the number of points that it contains, or obtain its ...
https://dev.mysql.com/gis-class-multilinestring.html
A MultiLineString is a MultiCurve geometry collection composed of LineString elements. MultiLineString Examples On a region map, a MultiLineString could represent a river system or a highway system.
https://dev.mysql.com/func-op-summary-ref.html
GTID_SUBTRACT() Return all GTIDs in set that are not in subset. JSON_CONTAINS() Whether JSON document contains specific object at path JSON_CONTAINS_PATH() Whether JSON document contains any data at path JSON_DEPTH() Maximum depth of JSON document ...
https://dev.mysql.com/gis-data-formats.html
MySQL uses values from 1 through 7 to indicate Point, LineString, Polygon, MultiPoint, MultiLineString, MultiPolygon, and GeometryCollection. MySQL supports geometry types of Point, LineString, Polygon, MultiPoint, MultiLineString, MultiPolygon, and ... Two standard spatial data formats are used to represent geometry objects in queries: Well-Known Text (WKT) format Well-Known Binary (WKB) format Internally, MySQL stores geometry values in a format that is not identical to either WKT or WKB ...
https://dev.mysql.com/spatial-function-reference.html
The following table lists each spatial function and provides a short description of each one.
https://dev.mysql.com/spatial-operator-functions.html
ST_Buffer() handles its arguments as described in the introduction to this section, with these exceptions: For a negative distance for Point, MultiPoint, LineString, and MultiLineString values, and for geometry collections not containing any Polygon ... OpenGIS proposes a number of functions that can produce ...
https://dev.mysql.com/gis-geometry-class-hierarchy.html
The geometry classes define a hierarchy as follows: Geometry (noninstantiable) Point (instantiable) Curve (noninstantiable) LineString (instantiable) Line LinearRing Surface (noninstantiable) Polygon (instantiable) GeometryCollection (instantiable) ...All classes have properties, and instantiable classes may also have assertions (rules that define valid class ...
https://dev.mysql.com/gis-wkt-functions.html
mysql> SET @g = "MULTILINESTRING((10 10, 11 11), (9 9, 10 10))"; mysql> SELECT ST_AsText(ST_GeomCollFromText(@g)); +--------------------------------------------+ | ST_AsText(ST_GeomCollFromText(@g)) | +--------------------------------------------+ | ... These functions take as arguments a Well-Known Text (WKT) representation and, optionally, a spatial reference system identifier ...
https://dev.mysql.com/gis-class-geometry.html
Geometry values of types (LineString, MultiPoint, MultiLineString) are either simple or nonsimple. The dimensions of MultiPoint, MultiLineString, and MultiPolygon objects are the same as the dimensions of the elements they consist of. It is a ...
https://dev.mysql.com/gis-mysql-specific-functions.html
MultiLineString(ls [, ls] ...) Constructs a MultiLineString value using LineString or WKB LineString arguments. MySQL provides a set of useful nonstandard functions for creating geometry values. The functions described in this section are MySQL ...
