content/flux/v0/stdlib/experimental/geo/st_length.md
geo.ST_Length() returns the spherical length or distance
of the specified GIS geometry.
(geometry: A, ?units: {distance: string}) => float where A: Record
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({{< req >}})
GIS geometry to test. Can be either point or linestring geometry.
Point geometry will always return 0.0.
Record that defines the unit of measurement for distance.