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Fix - Documented unit used for Earth's radius #2842

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Feb 18, 2025
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Fix - Documented unit used for Earth's radius #2842

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2 changes: 1 addition & 1 deletion packages/turf-helpers/README.md
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Expand Up @@ -49,7 +49,7 @@ Type: ([Feature][7] | [FeatureCollection][8] | [Geometry][9] | [GeometryCollecti

## earthRadius

The Earth radius in kilometers. Used by Turf modules that model the Earth as a sphere. The [mean radius][11] was selected because it is [recommended ][12] by the Haversine formula (used by turf/distance) to reduce error.
The Earth radius in meters. Used by Turf modules that model the Earth as a sphere. The [mean radius][11] was selected because it is [recommended ][12] by the Haversine formula (used by turf/distance) to reduce error.

Type: [number][13]

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2 changes: 1 addition & 1 deletion packages/turf-helpers/index.ts
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Expand Up @@ -97,7 +97,7 @@ export type AllGeoJSON =
| GeometryCollection;

/**
* The Earth radius in kilometers. Used by Turf modules that model the Earth as a sphere. The {@link https://en.wikipedia.org/wiki/Earth_radius#Arithmetic_mean_radius mean radius} was selected because it is {@link https://rosettacode.org/wiki/Haversine_formula#:~:text=This%20value%20is%20recommended recommended } by the Haversine formula (used by turf/distance) to reduce error.
* The Earth radius in meters. Used by Turf modules that model the Earth as a sphere. The {@link https://en.wikipedia.org/wiki/Earth_radius#Arithmetic_mean_radius mean radius} was selected because it is {@link https://rosettacode.org/wiki/Haversine_formula#:~:text=This%20value%20is%20recommended recommended } by the Haversine formula (used by turf/distance) to reduce error.
*
* @constant
*/
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