Newsgroups: info.grass.user
Path: zorro.cecer.army.mil!shapiro
From: shapiro@zorro.cecer.army.mil (Michael Shapiro)
Subject: Re: Lambert Azimuthal Equal Area
Message-ID: <C4wD51.40H@news.cecer.army.mil>
Sender: news@news.cecer.army.mil (Net.Noise owner)
Organization: US Army Corps of Engineers Construction Engineering Research Labs
References: <9303312200.AA07457@cast.uark.edu>
Date: Sat, 3 Apr 1993 07:36:36 GMT
Lines: 41
In <9303312200.AA07457@cast.uark.edu> anne@cast.uark.edu (Anne Gisiger) writes:
Hello
I have vector layers in the Lambert Azimuthal Equal Area projection that I
need to use in GRASS.Does anyone know if GRASS can deal with this projection i.e.:
- is it possible to create a Lambert Azimuthal location, and
- could layers in any of GRASS predefined projections be
transformed into Lambert Azimuthal using v.proj?I was told that GRASS used to allow the creation of user-defined ellipsoids?
If it is still possible it might be a solution to my problem. Do you have
any ideas about how it is done?
If all goes well (and this may be a bug IF) you will be able to
use v.proj to convert from one projection to another. You do it
by creating location that have projection info for the location
(ie all maps are ASSUMED to be in the projection of the location
and this is a user reponsibility). The create another location
for the resulting projection and use v.proj to "copy" vector
file from onme location to another projecting as they are copied
using v.proj. g.setproj is used to configure a location for a
given projection.
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Anne Gisiger, Research Assistant FAX: (501) 575-3846
CAST, Center for Advanced Spatial Technologies TEL: (501) 575-6159
12 Ozark Hall, University of Arkansas
Fayetteville AR 72701 anne@cast.uark.edu
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--
Michael Shapiro shapiro@zorro.cecer.army.mil
U.S. Army CERL (217) 373-7277
P.O. Box 9005
Champaign, Ill. 61826-9005