mswkt = '''GEOCCS["ITRF91",DATUM["International_Terrestrial_Reference_Frame_1991",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6650"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Geocentric X",OTHER],AXIS["Geocentric Y",OTHER],AXIS["Geocentric Z",NORTH],AUTHORITY["EPSG","4913"]]'''
m = mapObj('')
m.setWKTProjection(mswkt)
lyr = layerObj(m)
lyr.setWKTProjection(mswkt)