No subject

whole world. In that case, UTM is not the best option, because it's a =
projection that was designed for showing limited parts of the world, =
basically fitting into one UTM zone, which is 6 degree of longitude. You =
can show the whole world using any of these zones, but the more you are =
outside of the zone, the bigger the distortions become.
=20
You can of course make a WMS layer for every zone and show each of these =
using the zone's UTM projection.=20
=20
You can start with any map, so one in latlon WGS-84 (4326) would work, =
you'll have your WMS software then reproject it into the projection =
you'd want.=20
=20
For some background to the projections, I'd recommend =
http://kartoweb.itc.nl/geometrics/
--=20
Barend K=F6bben=20
International Institute for Geo-information Sciences and  Earth =
Observation (ITC)=20
PO Box 6, 7500AA Enschede (The Netherlands)=20
ph: +31-(0)534874253; mobile: +31-(0)622344955

________________________________

From: Linda Rawson [mailto:linda.rawson at gmail.com]
Sent: Mon 11/12/2007 23:29
To: Barend K=F6bben
Cc: users at openlayers.org
Subject: Re: [OpenLayers-Users] Need help understanding UTM


What would I start with?  A map in EPSG: 4326???
=20
Would I add each zone layer individually?
=20
Do you do this in Mapserver or something like that so I only have 1 WMS =
layer?
=20
Thanks,
Linda Rawson


On Nov 12, 2007 12:51 AM, Barend K=F6bben <kobben at itc.nl> wrote:


	What exactly are you asking?
=09

	> Is there anyway to get the map in meters and add
	> these layers for each zone?
=09
=09
	Of course, if you have any map in a knwon projection or in lat/lon, you =
can project it in any zone of UTM. So what is the problem...?=20
	--
	Barend K=F6bben
	International Institute for Geo-information Sciences and  Earth =
Observation (ITC)
	PO Box 6, 7500AA Enschede (The Netherlands)
	ph: +31-(0)534874253; mobile: +31-(0)622344955
=09
	________________________________=20
=09
	From: users-bounces at openlayers.org on behalf of Linda Rawson
	Sent: Sat 11/10/2007 03:47
	To: users at openlayers.org
	Subject: [OpenLayers-Users] Need help understanding UTM
=09


	I keep coming back to the fact I need a map layer that is a meter =
projection.
=09
	In UTM there are several different projections:
=09
	    EPSG: 32611
	    EPSG: 32612
	    EPSG: 32613=20
=09
	These are based on zone.  Whatever longitude you are at would determine =
the zone.
=09
	Is there anyway to get the map in meters and add these layers for each =
zone?
=09
	Thanks,
	Linda Rawson
=09