[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Octave-patch-tracker] [patch #9958] [octave forge](mapping) gcxgc

From: Philip Nienhuis
Subject: [Octave-patch-tracker] [patch #9958] [octave forge](mapping) gcxgc
Date: Wed, 12 Aug 2020 17:05:18 -0400 (EDT)
User-agent: Mozilla/5.0 (Windows NT 6.1; rv:52.0) Gecko/20100101 Firefox/52.0

Follow-up Comment #22, patch #9958 (project octave):

In the mean time I played around about detecting coinciding great circles with
my idea from comment #18.
I got it working, see attached gcxgc3.m (based on your gcxgc.m version of
comment #6). Just interpret it as a proof-of-concept for now.

Turned out it isn't even necessary to compute & then compare polar axes, it
suffices to find & compare the (Lat,Lon) coordinates of the location where the
great circle tangents run exactly EW (azimuth 90 degrees).
I wish I had realized this earlier on. Very easy to grasp.

In that gcxgc3.m I've also made it return the indices of coinciding great
circle pairs, if any. A sort of Matlab extension so to speak.

I'll proceed with the version of comment #15 (your last version).


Reply to this item at:


  Message sent via Savannah

reply via email to

[Prev in Thread] Current Thread [Next in Thread]