ST_PixelAsPolygon

Description

Returns the polygon geometry that bounds the pixel for a particular row and column.

Availability: 2.0.0

Examples

-- get raster pixel polygon
SELECT i,j, ST_AsText(ST_PixelAsPolygon(foo.rast, i,j)) As b1pgeom
FROM dummy_rast As foo
	CROSS JOIN generate_series(1,2) As i
	CROSS JOIN generate_series(1,1) As j
WHERE rid=2;

 i | j |                                                    b1pgeom
---+---+-----------------------------------------------------------------------------
 1 | 1 | POLYGON((3427927.75 5793244,3427927.8 5793244,3427927.8 5793243.95,...
 2 | 1 | POLYGON((3427927.8 5793244,3427927.85 5793244,3427927.85 5793243.95, ..
  

See Also

ST_DumpAsPolygons , ST_PixelAsPolygons , ST_PixelAsPoint , ST_PixelAsPoints , ST_PixelAsCentroid , ST_PixelAsCentroids , ST_Intersection , ST_AsText