Name
ST_DistanceSpheroid — Returns the minimum distance between two lon/lat geometries using a spheroidal earth model.
Synopsis
float ST_DistanceSpheroid(geometry geomlonlatA, geometry geomlonlatB, spheroid measurement_spheroid=WGS84);
Description
Returns minimum distance in meters between two lon/lat geometries given a particular spheroid. See the explanation of spheroids given for ST_LengthSpheroid.
![[Note]](../images/note.png)
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This function does not look at the SRID of the geometry. It assumes the geometry coordinates are based on the provided spheroid. |
Availability: 1.5 - support for other geometry types besides points was introduced. Prior versions only work with points.
Changed: 2.2.0 In prior versions this was called ST_Distance_Spheroid
Examples
Code
WITH input AS (
SELECT ST_Centroid(
ST_GeomFromText(
'LINESTRING(-118.584 38.374,-118.583 38.5)', 4326
)
) AS source,
ST_GeomFromText('POINT(-118 38)', 4326) AS target
)
SELECT round(
ST_DistanceSpheroid(
source,
target,
'SPHEROID["WGS 84",6378137,298.257223563]'
)::numeric,
2
) AS dist_meters_spheroid,
round(ST_DistanceSphere(source, target)::numeric, 2)
AS dist_meters_sphere,
round(
ST_Distance(
ST_Transform(source, 32611),
ST_Transform(target, 32611)
)::numeric,
2
) AS dist_utm11_meters
FROM input;
Output
dist_meters_spheroid | dist_meters_sphere | dist_utm11_meters
----------------------+--------------------+-------------------
70454.92 | 70424.71 | 70438.00
Figure