// reads .prj files
public static IProjection read(string filename)
{
// reads all text in file
string input = File.ReadAllText(filename);
string proj4 = null;
OSGeo.OSR.SpatialReference oSRS = new OSGeo.OSR.SpatialReference("");
string[] ESRI = {input};
// converts text to spatial reference
oSRS.ImportFromESRI(ESRI);
// converts spatial reference to proj4-representation
oSRS.ExportToProj4(out proj4);
// returns proj4 srs object
return Proj4CSharp.Proj4CSharp.ProjectionFactory(proj4);
}
