Dear Andre, Is it possible, because of the different WKT string specification, my shape files was misaligned for about 200 meters to 300 meters when I chose Kertau (RSO)/RSO Malaya (m) (EPSG:3168) as the projection (OTF)? In view of that issue, can you advise me if I 1) can I still use the Kertau (RSO)/RSO Malaya (m) (EPSG:3168) projection? Or 2) should I transform the projection to any other projection? Or 3) should I use the User-define CRS? If yes, how can I do that?
I apologize for any trivial questions here. Your responses is very much appreciated. Thanks and best wishes, Kamarul On Sun, May 31, 2015 at 10:00 PM, Andre Joost <[email protected]> wrote: > Am 30.05.2015 um 23:31 schrieb Nicolas Cadieux: > >> Hi, >> I am assuming QGIS cannot read this projection? >> > > You are right, the projection name is not known for QGIS. > > The WKT string for Kertau RSO is: > > > PROJCS["Kertau (RSO) / RSO Malaya (m)", > GEOGCS["Kertau (RSO)", > DATUM["Kertau_RSO", > SPHEROID["Everest 1830 (RSO 1969)",6377295.664,300.8017, > AUTHORITY["EPSG","7056"]], > AUTHORITY["EPSG","6751"]], > PRIMEM["Greenwich",0, > AUTHORITY["EPSG","8901"]], > UNIT["degree",0.0174532925199433, > AUTHORITY["EPSG","9122"]], > AUTHORITY["EPSG","4751"]], > PROJECTION["Hotine_Oblique_Mercator"], > PARAMETER["latitude_of_center",4], > PARAMETER["longitude_of_center",102.25], > PARAMETER["azimuth",323.0257905], > PARAMETER["rectified_grid_angle",323.1301023611111], > PARAMETER["scale_factor",0.99984], > PARAMETER["false_easting",804670.24], > PARAMETER["false_northing",0], > UNIT["metre",1, > AUTHORITY["EPSG","9001"]], > AXIS["Easting",EAST], > AXIS["Northing",NORTH], > AUTHORITY["EPSG","3168"]] > > which looks similar to the one given, but the ellipsoid major axis is > different, and False Easting. > > For the different namings of the projection, see > > https://trac.osgeo.org/gdal/ticket/2745 > http://lists.maptools.org/pipermail/proj/2010-September/005349.html > > HTH, > André Joost > > > _______________________________________________ > Qgis-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-user > -- Dr. Kamarul Imran Musa, M.D. M.Community.Med. Associate Professor (Epidemiology and Biostatistics) & Public Health Physician Dept of Community Medicine School of Medical Sciences 16150 Universiti Sains Malaysia, Kbg Kerian Kelantan Thomson Reuters researchID: http://www.researcherid.com/rid/G-4864-2010 Google-scholar: http://scholar.google.co.uk/citations?user=aZyayMgAAAAJ&hl=en&authuser=1 blog: http://designdataanalysis.wordpress.com email : [email protected] <[email protected]> , [email protected]
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