Take the 2-minute tour ×
Geographic Information Systems Stack Exchange is a question and answer site for cartographers, geographers and GIS professionals. It's 100% free, no registration required.

I am trying to learn my colleagues to display measured data (ASCII) in maps relatively easily. I can prepare project, color and symbology style for the point layer and background map.

I also found good way to get background map (PNG + world file) for offline use via MOBAC and OSM. MOBAC uses EPSG:3395 WGS 84 / World Mercator and I have the appropriate PRJ file. However, I found out, that QGIS does not use the PRJ for rasters and load them always using default CRS (in my case EPSG:4326).

Is it possible to make QGIS load the CRS settings from the PRJ (or other file) without need to set the CRS manually for every raster?


share|improve this question
Hi, after QGIS upgrade I found out, that it reads the projection from the *.aux.xml file which MOBAC generates along with the *.pgw world file and the PNG image. Works out of the box for me (QGIS 1.7.4) - example file: dl.dropbox.com/u/6066212/Test_Prague.zip (600 kb). Really useful. :-) –  Juhele May 3 '12 at 9:44

1 Answer 1


(menu) Raster > Projections > Assign projection

This procedure writes CRS to file. Next time you load it QGIS will not ask you for a CRS.

share|improve this answer
Hi, but this requires converting all the maps to Geotiff - it increases the time I would have to spend with the map preparation... –  Juhele May 3 '12 at 9:40

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.