Changes between Version 12 and Version 13 of DevWikiEmptyGeometry

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Timestamp:
10/06/09 11:01:13 (4 years ago)
Author:
robe
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  • DevWikiEmptyGeometry

    v12 v13  
    2525}}} 
    2626 * ST_Difference(geometry, empty) == geometry 
     27 
     28{{{ 
     29SQL Server 2008 Geometry:  
     30   SELECT (Geometry::STGeomFromText('POINT(1 3)',4326).STDifference(Geometry::STGeomFromText('POLYGON EMPTY',4326))).STAsText() 
     31  => POINT (1 3) 
     32}}} 
     33 
    2734 * ST_Difference(empty, geometry) == empty 
     35{{{ 
     36SQL Server 2008 Geometry:  
     37 SELECT (Geometry::STGeomFromText('POLYGON EMPTY',4326).STDifference(Geometry::STGeomFromText('POLYGON EMPTY',4326))).STAsText() 
     38  => GEOMETRY COLLECTION EMPTY 
     39}}} 
     40 
    2841 * ST_Distance(geometry, empty) == NULL 
    2942 * ST_DWithin(geometry, empty, tolerance) == FALSE