Hi All; 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. My goal in therion is to georeference images and overlay centerline and other data for eventual use in a GIS. Is there anyone that has a template or example that shows how to organize the .th, .th2 and thconfig files for georeferencing images and centerline data from a fixed station or any other means? The farthest I get is entering local coordinates for the survey lines and image and creating an EPSG fixed point. How do I tie these together I have the pdfs, examples and info from the wiki but just dont know how to put it together Thanks in advance for the help, Dan H
On Wed, 15 Sep 2010 23:22:30 +0000, djh7771@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
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