On 2012-10-19, Oliver Eichler wrote: > Hi Adam, > > all the projection stuff in QLGT is done by the Proj4 library. > > http://trac.osgeo.org/proj/ > > Proj4 is configured by strings. The easiest way to do so is to find the EPSG > code. I used Google to search for "OSGB EPSG". > > If there is no EPSG code you have to fall back to a more complex form of the > string. E.g. Gauss Krüger Zone 3 is: > > +proj=tmerc +lat_0=0 +lon_0=12 +k=1 +x_0=4500000 +y_0=0 +datum=potsdam > +units=m +no_defs > > but I prefer: > > +init=epsg:31467 > > Imho if you get into the Proj4 syntax it's as easy as any other notation > system that provides me with the same flexibility. Every country has it's own > idea of how coordinates have to look like and what projection system / datum > is used. Thus Proj4 is simply a compromise to manage them all.
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