ST_Touches
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ST_Touches identifies the spatial relationship between two raster objects, or between a raster object and a geometric object, to determine whether the first specified object touches the second.
Syntax
bool ST_Touches(raster rast1, raster rast2);
bool ST_Touches(raster rast, geometry geom);
bool ST_Touches(geometry geom, raster rast);Parameters
| Parameter | Description |
|---|---|
rast1 | The first raster object. |
rast2 | The second raster object. |
rast | A raster object. |
geom | A geometric object. |
Example
The following query returns the IDs of rows in tbl_a whose raster object touches any raster in tbl_b.
SELECT a.id
FROM tbl_a a, tbl_b b
WHERE ST_Touches(a.rast, b.rast);该文章对您有帮助吗？