[mapserver-users] Projecting like a sphere

[Antti.Roppola at brs.gov.au]

This all makes a lot of sense. Why bother mangling
spatial coordinates to fit on a 2D page when you can
represent a view of the 3D object?

Cool....  :o)

Antti

-----Original Message-----
From: Paul Ramsey [mailto:pramsey at refractions.net]
Sent: Wednesday, 7 August 2002 5:16 AM
To: nhv at cape.com
Cc: 'Tyler Mitchell'; mapserver-users at lists.gis.umn.edu
Subject: Re: [mapserver-users] Projecting like a sphere


That would be cool. If I am not mistaken, unlike a normal planar
projection, you will implement panning not by altering the extents of
the map, but by altering the origin of the projection. Fancy schmantzy.

Norman Vine wrote:
> 
> Tyler Mitchell writes:
> >
> >I have a world map layer and I'm displaying it in lat/long.  I'd like to
> >project it so that it looks like a sphere, so that when I keep panning west
> >it doesn't come to "the end" of the map.  I want it to be a continuous
> >layer as you pan east/west and north/south. I noticed that Arcview has a
> >function similar to this, is it just a matter of choosing a specific type
> >of projection?
> >
> >Any suggestions on how to do this?
> 
> Sounds like you want to use an 'orthographic' projection
> 
> Cheers
> 
> Norman

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