Geodesic Measurement Algorithm Used in ArcGIS

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08-07-2019 11:53 PM
ThanHtetAung_EsriAu
Esri Regular Contributor

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 

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MelitaKennedy
Esri Notable Contributor

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

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MelitaKennedy
Esri Notable Contributor

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

ThanHtetAung_EsriAu
Esri Regular Contributor

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?

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DanPatterson_Retired
MVP Esteemed Contributor

geographiclib · PyPI implements Karney's algorithm

MelitaKennedy
Esri Notable Contributor

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

Melita

ThanHtetAung_EsriAu
Esri Regular Contributor

Thank Melita,

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

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