Hi Ruth,
I get this problem on Windows XP, Windows Vista and Ubuntu Linux. I have
done some further investigation and the problem seems to be related to
the regional settings on my computers. We use a point as a decimal
symbol not a comma. The comma is used as a grouping symbol.
I have run the 'select by buffer' tool with 6 different buffer sizes to
show you the problem. In the list below the first number is the buffer
width I entered (in metres), the second value is the buffer width that
gvSIG calculates (this is the value from the log file):
1.00 100.0
10.00 1000.0
100.00 10000.0
1,000.00 1.0
10,000.00 10.0
100,000.00 100.0
You can see a pattern here. gvSIG is misinterpreting the decimal point
as a grouping symbol.
Frank.
On 2011/04/01 12:59, Ruth Schönbuchner wrote:
Dear Frank,
well I just tested it again with your shapefile and the projection
(epsg 32375) and couldn´t reproduce the problem.
(see attached)
I think it could be helpful to send the logfile after having produced
the problem on your system.
Here some steps to reduce the gvsig.log to the essential part:
- Delete the folder under "C:\Dokumente und Einstellungen\root\gvSIG"
- Start gvSIG and perform the buffer selection again
- post the gvsig.ini to this list
Maybe one of the developers see some problem in detail?
Do you have the possibility to test the selection on Windows XP?
Best regards,
Ruth
> Date: Thu, 31 Mar 2011 16:43:58 +0200
> From: [email protected]
> To: [email protected]
> Subject: Re: [Gvsig_english] gvSIG 1.11 RC1 Select by buffer zone
problem
>
> Dear Ruth,
>
> Thanks for testing this but I still get the problem. Is you look at the
> attached screenshot_1 you can see that I am setting the buffer at 100
> metres. If you look at screenshot_2 you can see that gvSIG has changed
> the value to 10000 metres.
>
> I have also attached the shapefiles so that you can test them. These
are
> using the UTM Zone 35S coordinate reference system (EPSG 32375).
Perhaps
> the problem is because I am using data from the Southern Hemisphere?
>
> Regards,
> Frank.
>
> On 31/03/2011 11:20, Ruth Schönbuchner wrote:
> > Dear Frank,
> >
> > i just tested your problem and could not reproduce it (on Win XP,
> > Gauß-Krüger 4).
> > To have a fixe size for testing, I created 100m buffer rings (with
> > geoprocessing) around some buildings first.
> > Afterwards I performed the tool 'select by buffer zone' for one of the
> > buildings and the selection is correct.
> > See attached screenshot.
> > Best regards, Ruth
> >
> > > Date: Tue, 29 Mar 2011 20:01:20 +0200
> > > From: [email protected]
> > > To: [email protected]
> > > Subject: [Gvsig_english] gvSIG 1.11 RC1 Select by buffer zone
problem
> > >
> > > Hi all,
> > >
> > > When using the 'Select by buffer zone' tool (Seleccion por area de
> > > influencia) in gvSIG 1.11 RC1 the calculated buffer is always
100 times
> > > too big. For example, if I specify a buffer of 100 metres, the tool
> > > produces a buffer of 10000 metres. If I request a buffer of 1 km the
> > > tool produces one of 100 km. This happens on both Ubuntu Linux and
> > > Windows Vista. These tests were done using both UTM and TM
projections.
> > >
> > > Frank.
> > > _______________________________________________
> > > Gvsig_internacional mailing list
> > > [email protected]
> > > http://listserv.gva.es/cgi-bin/mailman/listinfo/gvsig_internacional
>
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GIS Solutions
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Web: gis-solutions.co.za
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Fax: (031) 2615927
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