[Octave-bug-tracker] [bug #59444] [octave forge] (mapping) missing referenceSphere function

[Philip Nienhuis]

Update of bug #59444 (project octave):

                  Status:             In Progress => Fixed                  
             Open/Closed:                    Open => Closed                 

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Follow-up Comment #13:

Function by jwe pushed here:
http://hg.code.sf.net/p/octave/mapping/rev/477055d6fba7

Modifications of radii here:
http://hg.code.sf.net/p/octave/mapping/rev/0ac545084622
In comment #5 I forgot to list Saturn's ref. radius; for completeness, it's is
58235000 m (after Matlab).

Thanks John for providing the implementation.

After a little investigation it seems the radii from Matlab are obtained from
"mean radius with equal surface" (than referenceEllipsoid) + a little
rounding. AFAICS they're not that much deviant after all; it merely seems a
definition issue. For reference radii (& elliposoids) it's quite the same as
for many other standards: "the nice thing is that there are so many to choose
from".

referenceSphere.m will be part of mapping-1.4.2, release date not yet planned
other than 'some time next year'.
Until then it can be downloaded here:
http://hg.code.sf.net/p/octave/mapping/file/0ac545084622/inst/referenceSphere.m
(click "raw")

FTR, I've also added 'Unit Sphere' to referenceEllipsoid.m and made it the
default, just like the competition.

Closing report.

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