[Qgis-user] How to reference a map with qGIS

[Mike Shand]

Laurence,

In Print Composer on the COMPOSITION tab you will find a "World file on" 
tick box which will give you the required tfw, jgw, pgw etc files for 
your exported raster.  It is not on the Item tab as you may have more 
than one map item to compose (e.g. inset or location map).


Regards,
Mike Shand

On 23/08/2015 02:29, James Keener wrote:
> When you export from composer, it's just a tiff, not a geotiff 
> (someone else correct me if I'm wrong!)
>
> A quick-and-dirty solution may be to fake the tiff that was exported 
> from the composer and georefernce it against your project, and save 
> that as a geotiff.
>
> Jim
>
> On August 22, 2015 9:22:29 PM EDT, "Laurence Béchet" 
> <bechet.laurence at gmail.com> wrote:
>
>
>     Hi,
>
>     I'm investigating the use of electronic devices to record data
>     when people are doing field work. Apps like PDF Maps require
>     referenced maps in pdf or tiff format. While it's quite easy to
>     design a referenced map from a GIS project with ArcGIS, it's seems
>     to be quite a challenge with qGIS.
>
>     I have a qGIS project with different shapefiles. If I use
>     /project/save as image/ and create a .tiff file, then use
>     /raster/conversion/translate/ the tiff file into a geotiff, the
>     result is georeferenced. But the map itself is not very exciting.
>
>     If I use the composer to create the .tiff file and then use
>     /raster/conversion/translate/ the tiff file into a geotiff (as in
>     the previous case), the final map is not georeferenced.
>
>     At this stage I'm kind of lost, as the composer allows setting
>     like GDAL, CRS etc.. and everything seems to be set properly.
>
>     I'm on Windows7 pro, with qGIS Wien 2.8.3 (I've got a rendering
>     pbe with version 2.10 which forced me to downgrade to 2.8).
>
>     Would someone have any ideas? What's the best practice to create
>     geo referenced tif or pdf?
>
>     Regards
>     Laurence Bechet
>
>
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