[GRASSLIST:1244] Re: possible bug?

[Paul Kelly]

On Tue, 16 Sep 2003, Deuchler, Christoph wrote:

> -----Original Message-----
> From: Paul Kelly
> To: Deuchler, Christoph
> Cc: 'GRASSLIST at baylor.edu'
> Sent: 9/15/2003 1:42 PM
> Subject: Re: [GRASSLIST:1234] possible bug?
>
>
> >If you delete the
> >ellps: sphere
> >line and add
> >a: 6370997
> >b: 6370997
> >or whatever radius you want, that should work.
>
> I tried that, but GRASS doesn't accept it, the WGS84 ellipsoid is used
> instead. I added a sphere in ellipse.table but this produces an error
> message about a invalid line in the file. It seems to work with a "almost
> sphere" (a-b difference 1m).

Yes I doubt it would work in 5.0.0, as there were some sphere-handling
changes introduced soon after that release and then I had to make a few
more changes to get a sphere working properly in 5.3.x (CVS HEAD). So it
would be good if you could try it and report any further problems. The sphere
support hasn't been very well tested at all. In particular problems with
individual modules that use the ellipsoid information (to calculate distances
etc.) but don't use the proj library functions would be interesting, as I
haven't tested any of those.

Paul