<div dir="ltr">Dear Nicolas,<div><br></div><div>The contents on the website are way too complicated for an untrained person like me. So I have to resort to Andre's suggestion.</div><div><br></div><div>Thanks</div><div><br></div><div>regards</div><div>Kamarul</div><div><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, May 31, 2015 at 11:13 PM, Nicolas Cadieux <span dir="ltr"><<a href="mailto:nicolas.cadieux@archeotec.ca" target="_blank">nicolas.cadieux@archeotec.ca</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><p dir="ltr">Hi,</p>
<p dir="ltr">I have done this in the past using documents found here. Qgis uses proj.4 syntax.<br></p>
<p dir="ltr"><a href="http://ie.unc.edu/cempd/projects/mims/spatial_beta/external/PROJ4.html" target="_blank">http://ie.unc.edu/cempd/projects/mims/spatial_beta/external/PROJ4.html</a></p>
<p dir="ltr">You can create user defined projection in "Setting/custom CRS".</p>
<p dir="ltr">Good luck!<br><br></p><span class="">
<p dir="ltr">Nicolas Cadieux M.Sc.<br>
Les Entreprises Archéotec inc. <br>
8548, rue Saint-Denis Montréal H2P 2H2<br>
Téléphone: <a href="tel:514.381.5112" value="+15143815112" target="_blank">514.381.5112</a> Fax: <a href="tel:514.381.4995" value="+15143814995" target="_blank">514.381.4995</a><br>
<a href="http://www.archeotec.ca" target="_blank">www.archeotec.ca</a></p>
</span><div class="gmail_quote"><span class="">On May 31, 2015 10:30 AM, "K Imran M [via OSGeo.org]" <<a href="http:///user/SendEmail.jtp?type=node&node=5208323&i=0" rel="nofollow" link="external" target="_blank">[hidden email]</a>> wrote:<br type="attribution"></span><blockquote style="border-left:2px solid #cccccc;padding:0 1em"><span class="">
<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></span><div><div class="h5"><div><br><div>On Sun, May 31, 2015 at 10:00 PM, Andre Joost <span dir="ltr"><<a href="/user/SendEmail.jtp?type=node&node=5208316&i=0">[hidden email]></span> wrote:<br>Am 30.05.2015 um 23:31 schrieb Nicolas Cadieux:<br>
Hi,<br>
I am assuming QGIS cannot read this projection?<br>
</div></div></div></div></blockquote><div><div class="h5">
<br>
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" rel="nofollow" link="external" target="_blank">https://trac.osgeo.org/gdal/ticket/2745</a><br>
<a href="http://lists.maptools.org/pipermail/proj/2010-September/005349.html" rel="nofollow" link="external" target="_blank">http://lists.maptools.org/pipermail/proj/2010-September/005349.html</a><br>
<br>
HTH,<br>
André Joost</div></div><div><div><br>
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