[GRASS-dev] d.where in gis.m ?

[Michael Barton]

Moritz,

Display your vector, but select a raster layer in the gism layer tree. Then
you'll get a much simpler output (because rasters only have e,n,cat,label)
on a single line. Save the output window to a file and this might do what
you want.

Michael
__________________________________________
Michael Barton, Professor of Anthropology
School of Human Evolution & Social Change
Center for Social Dynamics and Complexity
Arizona State University

phone: 480-965-6213
fax: 480-965-7671
www: http://www.public.asu.edu/~cmbarton


> From: Moritz Lennert <mlennert at club.worldonline.be>
> Date: Fri, 28 Jul 2006 10:48:18 +0200
> To: Michael Barton <michael.barton at asu.edu>
> Cc: Grass Developers List <grass-dev at grass.itc.it>
> Subject: Re: [GRASS-dev] d.where in gis.m ?
> 
> Michael Barton wrote:
>> Moritz,
>> 
>> Click the query button on the toolbar of the map display. The coordinates
>> and the value (cat, label for raster; cat, attributes for vector) will show
>> up in the output window.
> 
> Yes, I know about this feature, it is just not very convenient for
> collecting a series of point coordinates, as it puts out quite a lot of
> information (especially if there are many attribute columns) and does so
> line by line, so you have to go back and copy first the X, then the Y...
> 
> For me it could just be a key stroke which copies the coordinates of the
> current mouse position (the ones displayed at the bottom) making it
> possible to paste them somewhere. But ideally, it should be possible to
> collect a series of point coordinates before copying them. Maybe just a
> modifier key to the query tool to make it only output coordinates ?
> 
> As an example for what my problem is, here is output from the query button:
> 
> East: 150376.834025
> North: 172832.39834
> Map: UrbAdm_Mu
> Mapset: mlennert
> Object type: Area
> Sq Meters: 7896417.508
> Hectares: 789.642
> Acres: 1951.200
> Sq Miles: 3.0487
> Layer: 1
> Category: 9
> driver: pg
> database: urbis
> table: UrbAdm_Mu
> key column: cat
> cat : 9
> muid : 8500
> polid : 6
> reid : 1
> munc : 21015
> mu3c : 085
> mudn : Schaarbeek
> mudnin : SC
> mufn : Schaerbeek
> mufnin : SC
> 
> East: 148713.165975
> North: 165276.572614
> Map: UrbAdm_Mu
> Mapset: mlennert
> Object type: Area
> Sq Meters: 22861322.565
> Hectares: 2286.132
> Acres: 5649.019
> Sq Miles: 8.8266
> Layer: 1
> Category: 10
> driver: pg
> database: urbis
> table: UrbAdm_Mu
> key column: cat
> cat : 10
> muid : 8600
> polid : 2
> reid : 1
> munc : 21016
> mu3c : 086
> mudn : Ukkel
> mudnin : UK
> mufn : Uccle
> mufnin : UC
> 
> and here d.where output:
> 
>> d.where
> 
> Buttons:
> Left:   where am i
> Middle: draw to/from here
> Right:  quit this
> 
>               EAST:             NORTH:
>     148883.72083333    170687.10416667
>         147561.1625    171209.16666667
>     148013.61666667        172427.3125
>         151111.1875    172914.57083333
>     151702.85833333    170687.10416667
>     148744.50416667    169677.78333333
> 
> 
> If for example, you just need the coordinates for start point and end
> point for a path, d.where's output is much easier to use.
> 
> 
>> 
>> Repeat.
>> 
>> Copy and paste, or save output
>> 
>> Michael
>> __________________________________________
>> Michael Barton, Professor of Anthropology
>> School of Human Evolution & Social Change
>> Center for Social Dynamics & Complexity
>> Arizona State University
>> 
>> phone: 480-965-6213
>> fax: 480-965-7671
>> www: http://www.public.asu.edu/~cmbarton
>> 
>> 
>> 
>>> From: Moritz Lennert <mlennert at club.worldonline.be>
>>> Date: Wed, 26 Jul 2006 20:04:27 +0200
>>> To: Grass Developers List <grass-dev at grass.itc.it>
>>> Subject: [GRASS-dev] d.where in gis.m ?
>>> 
>>> Hello,
>>> 
>>> Am I mistaking, or is there no equivalent to d.where in the gis.m ? I
>>> know I can see the coordinates the mouse is at, but it would be great to
>>> be able to collect a series of coordinates in a suitable format and then
>>>   copy-paste them.
>>> 
>>> Moritz
>>> 
>>> 
>> 
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>