st_transform
How PostGIS runs Reproject: st_transform.
| Engine | PostGIS |
|---|---|
| Tool name | st_transform |
| Interface | sql |
| Implements | Reproject |
| Documentation | Not stated |
| Effects | modifies input: no, network: no |
| Notes | Not stated |
| Status | active |
Parameters
| Name | Type | Required | Default | Choices | Note |
|---|---|---|---|---|---|
geom | geometry | no | Not stated | Not stated | Not stated |
from_proj | text | no | Not stated | Not stated | Not stated |
to_proj | text | no | Not stated | Not stated | Not stated |
to_srid | integer | no | Not stated | Not stated | Not stated |
SQL overloads
-
st_transform(geom geometry, from_proj text, to_proj text) → geometry -
st_transform(geom geometry, from_proj text, to_srid integer) → geometry -
st_transform(geom geometry, to_proj text) → geometry -
st_transform(geometry, integer) → geometry
How it maps to the operation
| Operation parameter | Parameter here | Note |
|---|---|---|
layer | #1 | Not stated |
crs | #2 | An SRID (4326), or to_proj for a PROJ string; the SRID must be in spatial_ref_sys. |
Differences from the operation
- Uses the database's spatial_ref_sys and PROJ; results can differ from GDAL where the transformation chosen differs.
Harvested by the postgis harvester from engine version
3.7.0. Names can change when an engine is harvested again.