This function returns the maximum X-coordinate value of the specified raster object.
Syntax
float8 ST_XMax(raster raster_obj)
float8 ST_XMax(raster raster_obj, integer pyramid)Parameters
| Parameter | Description |
|---|---|
| raster_obj | The name of the raster object. |
| pyramid | The pyramid level. The value starts from 0. |
Description
If the raster object has been georeferenced, this function returns the maximum X-coordinate value of the raster object. Otherwise, this function returns -1.
Examples
select ST_XMax(rast)
from raster_table;
st_xmax
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