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| GeoCommunity Mailing List |
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| Mailing List Archives |
| Subject: | Re: GISList: Projections for a specific area |
| Date: |
11/09/2002 09:21:36 PM |
| From: |
Nigel James |
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Depends where the area is really - Lambert Cylindrical Equal Area is OK near
the Equator, but shape distortion is bad towards the poles. Or there are the
Lambert and Albers Equal Area Conic which again have problems near the poles.
You could consider pseudocylinidrical projections like Eckert or
Winkel, or pseudoconic projections like Bonne, which has no distortion on the
central parallel or central meridian, or Werner.
Nigel James
On Thu, 31 Oct 2002 16:13:28 +0200 "GIS (IPS)" <ipsgis@safcol.co.za>
wrote:
> Hi all,
>
> Aaaahh projections. Something of a sticky subject to most.
>
> I'm looking for a projection to use to represent an area, roughly 800 to a
> 1000km. I was thinking of something like Albers or Lambert. They need to
> get good area representation with this projection. The current datum is WGS
> 84 and they're using Transverse Mercator, which I know is wrong as it
> squashes the data.
>
> Your help would be greatly appreciated.
>
> ciao
>
> Dean Carstens
> AfriGIS Environmental Solutions
> Knysna
> South Africa
> Tel: +27-44-3750221
> Cell: +27-82-7410315
> Fax: +27-44-3750132
> www.afrigis.co.za
> ipsgis@safcol.co.za or dean@afrigis.co.za
>
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__________________________________
Nigel N James
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