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ARCMAP-ELLIPSOID SURFACE

Question asked by CADEngr2014 on Oct 15, 2016
Latest reply on Oct 15, 2016 by Dan_Patterson

Hello,

I am using ArcMap 10.3.

 

I have a question about the Ellipsoids surface and what it is intended to represent.  I see reference to the ellipsoid as approximating the earths surface but I also see the Ellipsoid concept as approximating the geoid surface.  So I have to ask: is the Ellipsoid intended to approximate the topography of the earths surface or the geoid surface ?

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