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ELLIPSOID-ANCHPOR POINT

Question asked by CADEngr2014 on Oct 19, 2016
Latest reply on Oct 19, 2016 by Dan_Patterson

Hello,

 

I am in the attempting to understand the details behind the ellipsoid and geoid concepts as they relate to datums.  I understand some of the basic concepts of the ellipsoid and geoid, and my research suggests that the ellipsoid is defined with an anchored point based on the International Terrestrial Reference Frame (ITRF).  I have to assume this refers to an origin anchor point (earth center) but have to ask if this understanding is correct and is it one anchor point or several that are used?

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