PostGIS
Name
ST_ContainsProperly — Return true if rastB intersects the interior of rastA but not the boundary or exterior of rastA.
Synopsis
boolean +`*`+ST_ContainsProperly*( raster rastA , integer
nbandA , raster rastB , integer nbandB );
boolean +`*`+ST_ContainsProperly*( raster rastA , raster
rastB );
Description
Raster rastA contains properly rastB if rastB intersects the interior of rastA but not the boundary or exterior of rastA. If the band number is not provided (or set to NULL), only the convex hull of the raster is considered in the test. If the band number is provided, only those pixels with value (not NODATA) are considered in the test.
Raster rastA does not contain properly itself but does contain itself.
|
|
Availability: 2.1.0
Examples
SELECT r1.rid, r2.rid, ST_ContainsProperly(r1.rast, 1, r2.rast, 1) FROM dummy_rast r1 CROSS JOIN dummy_rast r2 WHERE r1.rid = 2;
rid | rid | st_containsproperly
-----+-----+---------------------
2 | 1 | f
2 | 2 | f