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Newsgroups: info.grass.user
Path: zorro.cecer.army.mil!shapiro
From: shapiro at zorro.cecer.army.mil (Michael Shapiro)
Subject: Re: flipped region
Message-ID: <C253FL.724 at news.cecer.army.mil>
Sender: news at news.cecer.army.mil (Net.Noise owner)
Organization: US Army Corps of Engineers Construction Engineering Research Labs
References: <9301251656.AA25394 at bnlux1.bnl.gov>
Date: Mon, 8 Feb 1993 17:04:33 GMT
Lines: 39

In <9301251656.AA25394 at bnlux1.bnl.gov> daum at bnlux1.bnl.gov (mary l. daum) writes:

I tested the region settings n=90n s=90s w=100e e=160w and the map
that was displayed had the tip of Alaska in the upper right corner,
australia in the center near the bottom, and indonesia (or parts of it)
at the right. The problem you might have is the need to do a d.erase after
setting the region. The graphics display has its own region which doens't
change with g.region unless you run d.erase after g.region. Please try
this and let me know if you still have problems.

GRASS doesn't use spherical coordinates for lat/lon. It use the longitide as
the x coordinate, latitude as the y coordinate. But it does "turn the globe"
so to speak, so what you request as the west edge should show up on the left
and the east edge on the right.
as

>To global-scale GRASS users, a question:

>I want to define a region in the western Pacific Ocean.  The western
>boundary runs through Indonesia (about 110 deg. E); the eastern
>boundary just captures Hawaii (about 160 deg. W).  When I define
>a new mapset with these boundaries, GRASS is happy to accept them,
>but when the map is displayed, Hawaii is lurking in the upper LEFT
>corner and Indonesia, the Philippines (etc) are crowded into the
>RIGHT side of the map, with a big blank area in between.  If it
>matters, the map is vector lat/long, imported by v.in.arc.

>Any good ideas out there about how to get Hawaii in the east and
>the Asian islands in the west? 
>                                 Thanks -- Mary

>Mary Daum
>Brookhaven National Laboratory
>daum at bnlux1.bnl.gov
-- 


Michael Shapiro U.S. Army CERL
Environmental Division