Mon, Oct 2 2006
23:48:56
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Request created by msieczka
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Subject: g.region -a: different number of rows if using 'res' or 'nsres' and
'ewres' - though res=nsres=ewres=10!
Although the n,s,e,w are equal in both cases, and that res=nsres=ewres=10, the
number of rows in the resulting regions are different:
$ g.region n=5679000 s=5678670 w=599240 e=599880 res=10 -ag
n=5679000
s=5678670
w=599240
e=599880
nsres=10
ewres=10
rows=33 < !!!
cols=64
$ g.region n=5679000 s=5678670 w=599240 e=599880 nsres=10 ewres=10 -ag
n=5679000
s=5678660
w=599240
e=599880
nsres=10
ewres=10
rows=34 < !!!
cols=64
Please please please fix it before 6.2 release.
Maciek
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Tue, Oct 3 2006
05:17:52
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Mail sent by glynn@gclements.plus.com
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Glynn Clements <glynn@gclements.plus.com>
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Date |
Tue, 3 Oct 2006 04:17:44 +0100
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To |
Request Tracker <grass-bugs@intevation.de>
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Cc |
grass-dev@grass.itc.it
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Subject |
Re: [GRASS-dev] [bug #5183] (grass) g.region -a: different number of rows if using 'res' or 'nsres' and 'ewres' - though res=nsres=ewres=10!
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Request Tracker wrote:
> this bug's URL: http://intevation.de/rt/webrt?serial_num=5183
> -------------------------------------------------------------------------
>
> Subject: g.region -a: different number of rows if using 'res' or 'nsres' and
'ewres' - though res=nsres=ewres=10!
>
> Although the n,s,e,w are equal in both cases, and that res=nsres=ewres=10,
the
> number of rows in the resulting regions are different:
>
> $ g.region n=5679000 s=5678670 w=599240 e=599880 res=10 -ag
> n=5679000
> s=5678670
> w=599240
> e=599880
> nsres=10
> ewres=10
> rows=33 < !!!
> cols=64
>
> $ g.region n=5679000 s=5678670 w=599240 e=599880 nsres=10 ewres=10 -ag
> n=5679000
> s=5678660
> w=599240
> e=599880
> nsres=10
> ewres=10
> rows=34 < !!!
> cols=64
>
> Please please please fix it before 6.2 release.
I've changed it in CVS.
Previously, ewres=/nsres= rounded to an even multiple of the
resolution, whereas res= simply rounded to a multiple.
--
Glynn Clements <glynn@gclements.plus.com>
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Tue, Oct 3 2006
11:59:16
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Mail sent by mneteler
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Tue, Oct 3 2006
13:32:24
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Status changed to resolved by msieczka
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Tue, Oct 3 2006
13:32:24
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Mail sent by msieczka
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glynn@gclements.plus.com wrote (Tue, Oct 3 2006 05:17:52):
> I've changed it in CVS.
>
> Previously, ewres=/nsres= rounded to an even multiple of the
> resolution, whereas res= simply rounded to a multiple.
Many many thanks! Works OK now.
Closing the ticket.
Maciek
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