stlinefromtext-geometry-data-type.md

title	description	author	ms.author	ms.date	ms.service	ms.subservice	ms.topic	ms.custom	f1_keywords	helpviewer_keywords	dev_langs
STLineFromText (geometry Data Type)	STLineFromText (geometry Data Type)	MladjoA	mlandzic	10/11/2019	sql	t-sql	reference	ignite-2024	STLineFromText (geometry Data Type) STLineFromText_TSQL	STLineFromText (geometry Data Type)	TSQL

STLineFromText (geometry Data Type)

[!INCLUDE SQL Server Azure SQL Database Azure SQL Managed Instance FabricSQLDB]

Returns a geometry instance from an Open Geospatial Consortium (OGC) Well-Known Text (WKT) representation augmented with any Z (elevation) and M (measure) values carried by the instance.

Syntax

  
STLineFromText ( 'linestring_tagged_text' , SRID )  

Arguments

linestring_tagged_text
Is the WKT representation of the geometryLineString instance you want to return. linestring_tagged_text is an nvarchar(max) expression.

SRID
Is an int expression representing the spatial reference ID (SRID) of the geometryLineString instance you want to return.

Return Types

[!INCLUDEssNoVersion] return type: geometry

CLR return type: SqlGeometry

OGC type: LineString

Remarks

This method throws a FormatException if the input isn't well-formatted. Three-dimension and measured geometry WKT notation from the Open Geospatial Consortium (OGC) Simple Features for SQL Specification version 1.2.1 aren't supported. See examples for the supported representation of Z (elevation) and M (measure) values.

Examples

The following examples use STLineFromText() to create a geometry instance.

Example 1: Two-dimension geometry WKT

DECLARE @g geometry;  
SET @g = geometry::STLineFromText('LINESTRING (100 100, 200 200)', 0);  
SELECT @g.ToString();  

Example 2: Three-dimension geometry WKT

DECLARE @g geometry;  
SET @g = geometry::STLineFromText('LINESTRING (100 100 100, 200 200 200)', 0);  
SELECT @g.ToString();  

Example 3: Two-dimension measured geometry WKT

DECLARE @g geometry;  
SET @g = geometry::STLineFromText('LINESTRING (100 100 NULL 100, 200 200 NULL 200)', 0);  
SELECT @g.ToString();  

Example 4: Three-dimension measured geometry WKT

DECLARE @g geometry;  
SET @g = geometry::STLineFromText('LINESTRING (100 100 100 100, 200 200 200 200)', 0);  
SELECT @g.ToString();  

See Also

OGC Static Geometry Methods