[GRASSLIST:2118] Re: New Location

[Daniel Victoria]

Maliheh,

Since your jpeg is not georefereced, it does not fall
in the region you defined. To see the images, first
you'll have to set the region to that image. The
comand is
g.region rast=test

then you can see you images with d.rast or if you'd
like to see the color composite you can use d.rgb

After that you will have to georeference the images so
it will fall in you current region. To do that you use
the command i.points (or something similar, cant
remember now and I'm away from my computer with grass)


Daniel
--- Maliheh <malihehs at yahoo.com> wrote:
> Thank you Daniel, 
> I checked it, but my problem didn't solved :(
>  
> My another problem is When I use r.in.gdal to import
> a jpg file, it says:
>  
> 
> r.in.gdal input=teh10.jpg output=test
> 
> PROJ_INFO file not found for location mtest7
> 
> PROJ_UNITS file not found for location mtest7
> 
>  100%
> 
> CREATING SUPPORT FILES FOR test.red
> 
> SETTING GREY COLOR TABLE FOR test.red (8bit, full
> range)
> 
>  100%
> 
> CREATING SUPPORT FILES FOR test.green
> 
> SETTING GREY COLOR TABLE FOR test.green (8bit, full
> range)
> 
>  100%
> 
> CREATING SUPPORT FILES FOR test.blue
> 
> SETTING GREY COLOR TABLE FOR test.blue (8bit, full
> range)
> 
>  
> 
> so I have 3 raster map in my location, but I can't
> see any of them by use of d.rast or d.rgb,
> 
> Would you please tell me my wrong?
> 
> Daniel Victoria <daniel_victoria at yahoo.com> wrote:
> Maliheh,
> 
> I'm not an expert here but, if you know the lat/long
> of your region, why are you creating a XY region and
> not a lat/long?
> 
> Maybee that's it, but once again, I'm not an
> expert...
> 
> Cheers
> Daniel
> --- Maliheh wrote:
> > 
> > Hello dear GRASS list,
> > 
> > I want to describe my problem from the beginning
> for
> > you, I wish you can and you want to help me and
> also
> > it can be helpful for others.
> > 
> > I want to create a new location for my region; I
> > don’t have any digital map that match my need, I
> > have just a paper map and a GPS receiver, with use
> > of gpsdrive I noted coordinates of four points on
> my
> > map. Gpsdrive shows the coordinates like this:
> > 
> > Latitude: 35.73581 Longitude: 51.40387
> > 
> > And also I know that my region is between 34:52N ,
> > 34:21N and 50:10E , 53:10E; and my map scale is
> > 1/12000 and the resolution of scanned map is
> 100dpi.
> > 
> > Now start the grass5.7 for creation new location:
> > 
> > 
> > 
> > a. LOCATION: test________ 
> > (enter list for a list of locations)
> > 
> > MAPSET: root__________ (or
> > mapsets within a location)
> > 
> > 
> > 
> > DATABASE: /usr/local/src/GIS/grassdata
> > 
> > 
> > 
> > 
> > 
> > b. LOCATION - doesn't exist
> > 
> > Would you like to create location ? (y/n) y
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > c. To create a new LOCATION, you will need the
> > following information:
> > 
> > 
> > 
> > 1. The coordinate system for the database
> > 
> > x, y (for imagery and other unreferenced
> > data)
> > 
> > Latitude-Longitude
> > 
> > UTM
> > 
> > Other Projection
> > 
> > 2. The zone for the UTM database
> > 
> > and all the necessary parameters for projections
> > other than
> > 
> > Latitude-Longitude, x, y, and UTM
> > 
> > 3. The coordinates of the area to become the
> default
> > region
> > 
> > And the grid resolution of this region
> > 
> > 4. A short, one-line description or title for the
> > location
> > 
> > Do you have all this information for location
> > ? (y/n) y
> > 
> > 
> > 
> > d. Please specify the coordinate system for
> > location 
> > 
> > 
> > 
> > A x, y
> > 
> > B Latitude - Longitude
> > 
> > C UTM
> > 
> > D Other Projection
> > 
> > RETURN to cancel
> > 
> > > A
> > 
> > x, y coordinate system? (y/n) [y] y
> > 
> > 
> > 
> > 
> > 
> > e. Please enter a one line description for
> > location 
> > 
> > 
> > 
> > > Create a new Location 
> > 
> > 
> > 
> > Create a new Location 
> > 
> > Ok? (y/n) [y] y
> > 
> > 
> > 
> > 
> > 
> > f. DEFINE THE DEFAULT REGION
> > 
> > 
> > 
> > ====== DEFAULT REGION ====
> > 
> > | NORTH EDGE: 36 
> > |
> > 
> > | 
> > |
> > 
> > WEST EDGE | 
> > | EAST EDGE
> > 
> > 50 | 
> > | 53
> > 
> > | SOUTH EDGE: 34 
> 
=== message truncated ===


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