Returns the Y-axis skew coefficient of a raster object in its spatial reference system.
Prerequisites
The raster object must have a valid spatial reference system identifier (SRID).
Syntax
float8 ST_SkewY(raster raster_obj)Parameters
| Parameter | Description |
|---|---|
raster_obj | The raster object to query. |
Examples
The following example queries the X-axis and Y-axis skew coefficients for each raster in raster_table.
SELECT ST_SkewX(rast), ST_SkewY(rast)
FROM raster_table;Output:
st_skewx | st_skewy
----------+-----------
0.3 | 0.2