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AsTextZM (geometry Data Type)

 

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

Applies to: SQL Server (SQL Server 2008 through current version), Azure SQL Database.
  
.AsTextZM ()  

SQL Server return type: nvarchar(max)

CLR return type: SqlChars

The following example creates a Point instance that contains Z (elevation) and M (measure) values. STAsText() selects the WKT values, (1 2); AsTextZM() selects the same WKT values and also returns the values for Z and M, yielding (1 2 3 4).

DECLARE @g geometry;  
SET @g = geometry::STGeomFromText('POINT(1 2 3 4)', 0);  
SELECT @g.STAsText();  
SELECT @g.AsTextZM();  

Extended Methods on Geometry Instances
M (geometry Data Type)
Z (geometry Data Type)

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