> The following function seems to be the one:
>
> ST_azimuth(geometry, geometry)
> Returns the azimuth of the segment defined by the given Point
> geometries, or NULL if the two points are coincident. Return value is
> in radians.
>
Or azimuth():
select azimuth(geomfromtext('POINT (0 0)', 4326),
geomfromtext('POINT(90 90)', 4326));
azimuth
-------------------
0.785398163397448
(1 row)
or
select degrees(azimuth(geomfromtext('POINT (0 0)', 4326),
geomfromtext('POINT(90 90)', 4326)));
degrees
-------------------
45
(1 row)
Nicolas
_______________________________________________
postgis-users mailing list
[email protected]
http://postgis.refractions.net/mailman/listinfo/postgis-users
