Is it possible to redefine a projection in QGis?
It seems like the shape files offered by Agiv (a Flemish agency) differ slightly from the definition that QGis has of EPSG:31370.
I'm NOT looking to create a custom projection, only to replace the existing one.
Update: the definition Agiv (official Flemish agency) uses, becomes this in QGis if you add a shapefile. It is considered a user defined coordinate system, generated CRS, USER:100000.
- Generated CRS (+proj=lcc +lat_1=49.8333339 +lat_2=51.16666723333333 +lat_0=90 +lon_0=4.367486666666666 +x_0=150000.01256 +y_0=5400088.4378 +ellps=intl +towgs84=-106.869,52.2978,-103.724,0.3366,-0.457,1.8422,-1.2747 +units=m +no_defs)
The definition of the EPSG:31370 in QGis for EPSG:31370 is: +proj=lcc +lat_1=51.16666723333333 +lat_2=49.8333339 +lat_0=90 +lon_0=4.367486666666666 +x_0=150000.013 +y_0=5400088.438 +ellps=intl +towgs84=-106.869,52.2978,-103.724,0.3366,-0.457,1.8422,-1.2747 +units=m +no_defs
So there's only a very very minor difference, but it seems QGis won't recognize it by default. That's what I'd like to change. (I know I could define it manually). That's how the files are provided, and how they are recognized in ArcGIS, which shows the same False_Easting and False_Northing.