[GRASS-user] Importing a Scanned Map

[Maris Nartiss]

You don't need to create different location if that GeoTIFF has same
coordinate system as Your current GRASS location. Just use r.in.gdal
override flag to import it without checking coordinate system match.
Remember - source and destination MUST have identical coordinate
systems (except for extent).

Maris.


2010/9/5, kapo coulibaly <kmcoulib at gmail.com>:
> I believe the wld is a world file, all it has is the coordinate but not the
> projection infos (not sure about the xml file though). I would suggest you
> create a dummy GRASS mapset with the projection your tif file was
> georeferenced at, then use r.proj to import it in your intended location.
> let me know if I missed the point you were trying to make.
>
> On Sun, Sep 5, 2010 at 11:20 AM, David Kindem <dkindem at gmail.com> wrote:
>
>> The file is a .tif file with two associated files, a .wld and a
>> tif.aux.xml.
>>
>> Dave
>>
>> David Kindem
>>
>>
>>
>>
>>
>> On Sep 5, 2010, at 11:01 AM, kapo coulibaly wrote:
>>
>> What format is the map in?
>>
>> On Sun, Sep 5, 2010 at 10:50 AM, David Kindem <dkindem at gmail.com> wrote:
>>
>>>  Hello,
>>>
>>> I am trying to import a raster map using r.in.gdal.  The map was
>>> previously georeferenced in Q-GIS.  When I run r.in.gdal, I receive the
>>> message that the projection of dataset does not appear to match current
>>> location.
>>>
>>> I used the location parameter to create a new location for the scanned
>>> map.  When I attempted to re-project the map from my new location into my
>>> intended GRASS location, I received the following error:
>>>
>>> Unable to get projection info of input map.
>>>
>>> Looking at the projection information, the projection for the scanned map
>>> and for my GRASS location match, with the exception of the cellhd.proj
>>> parameter.  The scanned map's cellhd.proj = 0 (unreferenced/unknown).
>>>
>>> I'm not familiar with the function of the cellhd.proj.  Could someone
>>> shed
>>> some light on how I might be able to resolve the issue?
>>>
>>> Thanks,
>>>
>>> Dave
>>>
>>>  David Kindem
>>> Grand Haven, MI
>>>
>>>
>>>
>>>
>>>
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>>>
>>>
>>
>>
>