Re: basic topology and the Data Model with geo-locations

We have some surveyors as users that prefer (y, x, z) which really makes
things confusing a lot of the time.

Tim.

Doug Lindholm wrote:
> 
> Steve Emmerson wrote:
> >
> > Bill,
> >
> > >Date: Thu, 06 Apr 2000 12:45:03 -0500
> > >From: Bill Hibbard <hibbard@xxxxxxxxxxxxxxxxx>
> > >To: Stuart Wier <wier@xxxxxxxxxxxxxxxx>
> > >Subject: Re: basic topology and the Data Model with geo-locations
> >
> > In the above message, you wrote:
> >
> > > 3. ((lat, lon, alt) -> (time, obs))
> > > In this case, the domain Set would be a Gridded3DSet with
> > > manifold dimension = 1.  This is probably the preferable
> > > way, since it preserves the notion that the spatial points
> > > are along a path rather than just a random scatter.
> >
> > How would one programatically know that "time" is the manifold variable
> > and not "obs"?
> >
> 
> I'm partial to (time) -> ((lon, lat, alt) -> (obs)). This makes
> resampling by time or space rather convenient. VMET assumes such an
> arrangement.
> 
> I don't want to start a religious war but I also prefer (lon,lat,alt)
> over (lat,lon,alt) because it relates directly to (x,y,z).
> 
> Doug
> 
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-- 
Tim Stevenson
Surpac Software International
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