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https://dev.mysql.com/doc/refman/8.0/en/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/doc/refman/8.0/en/cast-functions.html
If the expression to cast is a well-formed geometry of type MultiLineString containing a single LineString, the function result is that LineString. If the expression to cast is a well-formed geometry of type other than LineString, Polygon, ... Table ...
https://dev.mysql.com/doc/refman/8.0/en/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/doc/refman/8.0/en/spatial-operator-functions.html
An ER_WRONG_ARGUMENTS error occurs for ST_Buffer() with a negative distance for Point, MultiPoint, LineString, and MultiLineString values, and for geometry collections not containing any Polygon or MultiPolygon values. An end or join strategy is ...
https://dev.mysql.com/doc/refman/8.0/en/built-in-function-reference.html
The following table lists each built-in (native) function and operator and provides a short description of each one. For a table listing functions that are loadable at runtime, see Section 14.2, “Loadable Function Reference”. ->> Return value ...
https://dev.mysql.com/doc/refman/8.0/en/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/doc/refman/8.0/en/spatial-function-reference.html
The following table lists each spatial function and provides a short description of each one.
https://dev.mysql.com/doc/refman/8.0/en/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/doc/refman/8.0/en/spatial-relation-functions-object-shapes.html
These combinations are supported: LineString and LineString Point and MultiPoint LineString and MultiLineString MultiPoint and MultiPoint MultiLineString and MultiLineString ST_HausdorffDistance() handles its optional unit argument as described in ... The OpenGIS specification defines the following functions to test the relationship between two geometry values g1 and g2, using precise object ...
https://dev.mysql.com/doc/refman/8.0/en/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 ...