Earth radius

[johnd0e]

commit 522ef34f77c86c54cc7586a298d5a6f74f75aef4
Author: Jon Atkins <[email protected]>
Date:   Thu Mar 12 20:47:05 2015 +0000

    earth radius: change leaflet and leaflet-draw to use the radius value used by the s2 geometry library

diff --git a/external/L.Geodesic.js b/external/L.Geodesic.js
diff --git a/external/leaflet-src.js b/external/leaflet-src.js
diff --git a/external/leaflet.draw.js b/external/leaflet.draw.js

We need to investigate if this change was necessary.

Originally posted by @johnd0e in #78 (comment)

[johnd0e]

More related links:

• EARTH_RADIUS is inconsistent iitc-project/ingress-intel-total-conversion#1236

[johnd0e]

diff --git a/external/L.Geodesic.js b/external/L.Geodesic.js

Radius value here does not have to be precise, so that change had no sense.

[McBen]

S2-Earth-Radius is used in distance calculation.
You'll see the difference in draw-tools (or other plugins when they use LatLng.distanceTo)

Current used radius result im more accurate distances but Ingress uses the S2 value for link-distance calculation - which is sometimes a important value.