topic Re: DATUM TANSFORMATION COMPUTATION in Mapping Questions

DATUM TANSFORMATION COMPUTATION

ChuckTurlington — Sun, 18 Sep 2016 14:43:30 GMT

Hello,

I am using ArcMap 10.2.2 (though not pertinent here).

I am trying to understand the basics of a coordinate system Datum and Transformation, but have a question, as follows:

I information on computing a coordinate datum transformation using the "GPS Vector Components method," to perform a Transformation. However, my information does not contain any visual graphics explaining the components involved, such as delta x,y,z, h, ecef origin, etc. So I have to ask: Does ESRI have in their archives, white papers on this subject that give clear steps, relationships and graphic explanation of the components so I know that I understand completely and not missing a detail?

Re: DATUM TANSFORMATION COMPUTATION

DanPatterson_Retired — Sun, 18 Sep 2016 15:57:39 GMT

cross-linked to here https://community.esri.com/thread/183174-transformation-of-datum-ellipsoid-geoid

Re: DATUM TANSFORMATION COMPUTATION

MelitaKennedy — Mon, 19 Sep 2016 20:35:02 GMT

If I ran across "GPS Vector Components method" before, I didn't remember it. When I did a quick search for references, I'm finding that it refers to adjusting (post-processing) a set of GPS observations or measurements, not to converting between two geographic coordinate reference systems or datums.

Melita