mswkt = '''VERT_CS["Baltic 1977 depth",VERT_DATUM["Baltic 1977",2005,AUTHORITY["EPSG","5105"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Depth",DOWN],AUTHORITY["EPSG","5612"]]''' m = mapObj('') m.setWKTProjection(mswkt) lyr = layerObj(m) lyr.setWKTProjection(mswkt)