PostGIS
Synopsis
+boolean +ST_Intersects( raster rastA , integer
nbandA , raster rastB , integer nbandB );
+boolean +ST_Intersects( raster rastA , raster rastB
);
+boolean +ST_Intersects( raster rast , integer nband
, geometry geommin );
+boolean +ST_Intersects( raster rast , geometry
geommin , integer nband=NULL );
+boolean +ST_Intersects( geometry geommin , raster
rast , integer nband=NULL );
Description
Return true if raster rastA spatially intersects raster rastB. 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.
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Enhanced: 2.0.0 support raster/raster intersects was introduced.
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Examples
-- different bands of same raster
SELECT ST_Intersects(rast, 2, rast, 3) FROM dummy_rast WHERE rid = 2;
st_intersects
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