topic Re: Geodesic Measurement Algorithm Used in ArcGIS in ArcGIS JavaScript Maps SDK Questions

Geodesic Measurement Algorithm Used in ArcGIS

Anonymous User — Thu, 08 Aug 2019 06:53:18 GMT

Hi Guys,

I would like verify that current geodesic measurement algorithm used in ArcGIS server is the same as the one published by Karney as below link?

Geodesic calculations for an ellipsoid done right

Re: Geodesic Measurement Algorithm Used in ArcGIS

MelitaKennedy — Fri, 09 Aug 2019 00:26:39 GMT

We are using Vincenty with some adaptions for near-antipodal cases for distance/geodesic line calculations. We are aware of Karney's publications and may switch to his at some point in the future.

Melita

Re: Geodesic Measurement Algorithm Used in ArcGIS

Anonymous User — Fri, 09 Aug 2019 01:45:29 GMT

Thank Kennedy,

Geo-scientists at my client side keen on looking forward to having it.

May I know the release plan?

Is there any suggested workflow to customize or add that measurement algorithm to ArcGIS environment.

One way I am thinking of it as providing as one add-in or extent the measurement add-in of the ArcGIS pro.

What do you recommend?

Re: Geodesic Measurement Algorithm Used in ArcGIS

DanPatterson_Retired — Fri, 09 Aug 2019 10:18:51 GMT

geographiclib · PyPI implements Karney's algorithm

Re: Geodesic Measurement Algorithm Used in ArcGIS

MelitaKennedy — Fri, 09 Aug 2019 18:10:05 GMT

There's no way to override / replace the algorithm in the existing tools or functionality. You would have to write an add-in.

Melita

Re: Geodesic Measurement Algorithm Used in ArcGIS

Anonymous User — Mon, 12 Aug 2019 02:02:48 GMT

Thank Melita,

We shall do the new add-in with Karney's algorithm.