[Qgis-user] How to project data?

John Callahan john.callahan at UDel.Edu
Mon Jun 16 13:05:59 EDT 2008


Carson,

This is great.  This is exactly what I was looking for.  I'm also 
looking at your other plugins and will probably try out several of these 
as well.  Thanks!

For rasters, using GDAL works great; even projecting in batch mode can 
be done with simple scripting.  However, including raster srs management 
within QGIS will be very helpful for the majority of users.

- John

****************************************
John Callahan
Geospatial Application Developer

Delaware Geological Survey
University of Delaware
227 Academy St, Newark DE 19716-7501
Tel: (302) 831-3584  

Email: john.callahan at udel.edu
http://www.dgs.udel.edu
****************************************



cfarmer wrote:
> John,
>
> Rasters cannot be projected in QGIS as of yet, however, you can use the
> georeferencing plugin to georeference them. As for vector layers, you can
> project them on the fly by assigning their projection using the projection
> dialog, or you can hard project them using my srsmanagement plugin. This
> plugin also allows you to define the projection.
>
> It is available here:
> http://www.geog.uvic.ca/spar/carson/
> or if you have QGIS > 0.9.2 you can add:
> http://www.geog.uvic.ca/spar/carson/cfarmerQgisRepo.xml
> to your python plugins repository in your plugin installer and install it
> directly from there.
>
> There are instruction at the address above as well...
>
> Cheers,
>
> Carson
>
>
>   
>> I apologize for asking a question that seems so trivial but I am having
>> a hard time understanding how QGIS manages coordinate systems.  How do I
>> project a vector or raster dataset?  Just as important, how do I define
>> a projection/coordinate system?   Is this done through the QGIS
>> interface or do I accomplish this outside QGIS using command line
>> GDAL/OGC utilities?      Thanks for your help.
>>
>> - John
>>
>> ****************************************
>> John Callahan
>> Geospatial Application Developer
>>
>> Delaware Geological Survey
>> University of Delaware
>> 227 Academy St, Newark DE 19716-7501
>> Tel: (302) 831-3584
>> Email: john.callahan at udel.edu
>> http://www.dgs.udel.edu
>> ****************************************
>>
>> _______________________________________________
>> Qgis-user mailing list
>> Qgis-user at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/qgis-user
>>
>>     
>
>
> Carson Farmer
> Spatial Pattern Analysis & Research Lab (SPAR)
> Department of Geography, University of Victoria
> www.geog.uvic.ca/spar/carson
> cfarmer at uvic.ca
>
>
>   
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