<div dir="ltr">Dear Andre,<div><br></div><div>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 <span style="font-size:12.8000001907349px">Kertau (RSO)/RSO Malaya (m) (EPSG:3168) as the projection (OTF)</span>?</div><div>In view of that issue, can you advise me if I </div><div>1) can I still use the <span style="font-size:12.8000001907349px">Kertau (RSO)/RSO Malaya (m) (EPSG:3168) projection? Or</span></div><div><span style="font-size:12.8000001907349px">2) should I transform the projection to any other projection? Or</span></div><div><span style="font-size:12.8000001907349px">3) should I use the User-define CRS? If yes, how can I do that?</span></div><div><span style="font-size:12.8000001907349px"><br></span></div><div><span style="font-size:12.8000001907349px">I apologize for any trivial questions here. Your responses is very much appreciated.</span></div><div><span style="font-size:12.8000001907349px"><br></span></div><div><span style="font-size:12.8000001907349px">Thanks and best wishes,</span></div><div><span style="font-size:12.8000001907349px"><br></span></div><div><span style="font-size:12.8000001907349px">Kamarul</span></div><div><span style="font-size:12.8000001907349px"><br></span></div><div><span style="font-size:12.8000001907349px"><br></span></div><div><span style="font-size:12.8000001907349px"><br></span></div><div><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, May 31, 2015 at 10:00 PM, Andre Joost <span dir="ltr"><<a href="mailto:andre+joost@nurfuerspam.de" target="_blank">andre+joost@nurfuerspam.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">Am 30.05.2015 um 23:31 schrieb Nicolas Cadieux:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi,<br>
I am assuming QGIS cannot read this projection?<br>
</blockquote>
<br></span>
You are right, the projection name is not known for QGIS.<br>
<br>
The WKT string for Kertau RSO is:<br>
<br>
<br>
PROJCS["Kertau (RSO) / RSO Malaya (m)",<br>
GEOGCS["Kertau (RSO)",<br>
DATUM["Kertau_RSO",<br>
SPHEROID["Everest 1830 (RSO 1969)",6377295.664,300.8017,<br>
AUTHORITY["EPSG","7056"]],<br>
AUTHORITY["EPSG","6751"]],<br>
PRIMEM["Greenwich",0,<br>
AUTHORITY["EPSG","8901"]],<br>
UNIT["degree",0.0174532925199433,<br>
AUTHORITY["EPSG","9122"]],<br>
AUTHORITY["EPSG","4751"]],<br>
PROJECTION["Hotine_Oblique_Mercator"],<br>
PARAMETER["latitude_of_center",4],<br>
PARAMETER["longitude_of_center",102.25],<br>
PARAMETER["azimuth",323.0257905],<br>
PARAMETER["rectified_grid_angle",323.1301023611111],<br>
PARAMETER["scale_factor",0.99984],<br>
PARAMETER["false_easting",804670.24],<br>
PARAMETER["false_northing",0],<br>
UNIT["metre",1,<br>
AUTHORITY["EPSG","9001"]],<br>
AXIS["Easting",EAST],<br>
AXIS["Northing",NORTH],<br>
AUTHORITY["EPSG","3168"]]<br>
<br>
which looks similar to the one given, but the ellipsoid major axis is different, and False Easting.<br>
<br>
For the different namings of the projection, see<br>
<br>
<a href="https://trac.osgeo.org/gdal/ticket/2745" target="_blank">https://trac.osgeo.org/gdal/ticket/2745</a><br>
<a href="http://lists.maptools.org/pipermail/proj/2010-September/005349.html" target="_blank">http://lists.maptools.org/pipermail/proj/2010-September/005349.html</a><br>
<br>
HTH,<br>
André Joost<div class="HOEnZb"><div class="h5"><br>
<br>
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</div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div style="font-family:arial;font-size:small;color:rgb(80,0,80)">Dr. Kamarul Imran Musa,</div><div style="font-family:arial;font-size:small;color:rgb(80,0,80)">M.D. M.Community.Med.</div><div style="font-family:arial;font-size:small;color:rgb(80,0,80)"><div>Associate Professor (Epidemiology and Biostatistics) & </div><div>Public Health Physician</div><div>Dept of Community Medicine</div><div>School of Medical Sciences</div><div>16150 Universiti Sains Malaysia, Kbg Kerian</div><div>Kelantan</div><div><span style="color:rgb(34,34,34)">Thomson Reuters </span><span style="color:rgb(34,34,34);font-family:Arial,sans-serif">researchID: </span><a href="http://www.researcherid.com/rid/G-4864-2010" style="color:rgb(17,85,204);font-family:Arial,sans-serif" target="_blank">http://www.researcherid.com/rid/G-4864-2010</a><br></div><div>Google-scholar: <a href="http://scholar.google.co.uk/citations?user=aZyayMgAAAAJ&hl=en&authuser=1" style="color:rgb(17,85,204)" target="_blank">http://scholar.google.co.uk/citations?user=aZyayMgAAAAJ&hl=en&authuser=1</a></div><div>blog: <a href="http://designdataanalysis.wordpress.com/" style="color:rgb(17,85,204)" target="_blank">http://designdataanalysis.wordpress.com</a> </div><div><span style="color:rgb(34,34,34)">email : </span><a href="mailto:drkamarul@kb.usm.my" style="color:rgb(17,85,204)" target="_blank">drkamarul@usm.my</a><span style="color:rgb(34,34,34)"> , </span><a href="mailto:k.musa@lancaster.ac.uk" style="color:rgb(17,85,204)" target="_blank">k.musa@lancaster.ac.uk</a></div></div></div></div></div></div>
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