[Therion] example data-georeferencing

[luethi at vaw.baug.ethz.ch]

On Wed, 15 Sep 2010 23:22:30 +0000, djh7771 at gmail.com wrote:
> I have recently started to focus on learning therion to use data that I  
> have gathered using Quantum GIS. I can see some good benefits from using  
> therion for my needs but I have run into some problems that I am having  
> difficulty solving. I was wondering if anyone could point me in the right  
> direction, I have gone though the examples and manual and pdf but  
> apparently need to be led to the answer.

I think you have to geo-reference the image yourself within QGIS, so
that the map projection matches the coordinate system you use. You might
also want to use gdalwrap for this. Then you can simply import the image
as overlay with

surface
bitmap ../karte/luftbild.jpg [0 0 705780 209980 1000 1000 706180 210380 m]
endsurface

HTH, Martin