[GRASS-user] maximum zoom-in reached
Moritz Lennert
mlennert at club.worldonline.be
Sun Nov 30 06:26:18 EST 2008
On 30/11/08 08:01, Richard Chirgwin wrote:
>> Message: 8 Date: Sun, 30 Nov 2008 08:02:14 +0530 From: H.S.Rai
>> <hardeep.rai at gmail.com> Subject: Re: [GRASS-user] maximum zoom-in
>> reached To: "GRASS user list" <grass-user at lists.osgeo.org> Message-ID:
>> <e46836620811291832h1a2e1d83j8f9ba2ca48b77260 at mail.gmail.com>
>> Content-Type: text/plain; charset=ISO-8859-1 On Sat, Nov 29, 2008 at
>> 8:34 PM, Maris Nartiss <maris.gis at gmail.com> wrote:
>>>> gis.m gives "Maximum zoom-in reached" error when display width/height
>>>> is smaller than one column/row. If You have data with higher
>>>> resolution, You have to adjust Your region settings (increase
>>>> resolution). See g.region how to set resolution.
>>>
>> Thanks to all for prompt and appropriate responses. Default region was
>> with resolution 1. I anticipated this and changed to .0001, but may be
>> I was not able to do it properly, and was not able to get zoom in.
>> Then I existing GRASS, restarted, and it worked fine.
>>
>> $ g.region -p
>> projection: 1 (UTM)
>> zone: 0
>> datum: wgs84
>> ellipsoid: wgs84
>> north: 36.56820636
>> south: 6.09470106
>> west: 66.77269446
>> east: 98.66413062
>> nsres: 0.0001
>> ewres: 0.0001
>> rows: 304735
>> cols: 318914
>> cells: 97184257790
>>
>
> That's because the GIS manager and map display don't auto-update to new
> location settings when you change them. They need to be reloaded.
>
> However, you don't have to exit GRASS. If you change the region
> settings, you can just close the GIS manager (this will close the map
> display as well), and re-start it by typing gis.m <enter> at the terminal.
Doesn't "Zoom to current region" do the trick ?
Moritz
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