pfCoord precision

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Carlo L. Tiana (carlo++at++vision.arc.nasa.gov)
Wed, 25 Sep 1996 08:44:17 -0700


This may end up being a FAQ, but I did not actually find the answer
in the FAQs, so please bear with me.

I am running a flight simulation where my eyepoint is passed to me
via Ethernet from another machine, which sends me a double precision
(64 bit) number for latitude and longitude. It has been suggested
to me that certain problems I have observed in this sim are due to
rounding errors when converting these to floats, which is the precision
of the pfCoord values.

Has anyone else dealt with this issue?
Thank you very much in advance,
Carlo.

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