ST_SkewX
更新时间：
复制 MD 格式
Returns the X axis skew of a raster object in the spatial reference system.
Prerequisites
The raster object must have a valid spatial reference system identifier (SRID).
Syntax
float8 ST_SkewX(raster raster_obj)Parameters
| Parameter | Description |
|---|---|
raster_obj | The raster object to query. |
Examples
The following example retrieves the X and Y axis skew values from all rows in raster_table.
SELECT st_skewx(rast), st_skewy(rast)
FROM raster_table;Output:
st_skewx | st_skewy
----------+-----------
0.3 | 0.2该文章对您有帮助吗？