<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<font face="Times New Roman, Times, serif">Hi Andre,<br>
<br>
As far as I know, the transformation from one coordinate system to
another goes as follow:<br>
<br>
- convert source coordinate to latlon<br>
- compute grid shift, either with +towgs84 parameters or by a
grid shift raster<br>
- convert resulting latlon to target coordinate<br>
<br>
Ntv2 is a Canadian format, where longitudes west of Greenwich are
positive, and east negative. This is horrible, but that is what
things are<br>
<br>
So this coordinate is really East. And it works for cs2cs and
vector data. Could it be that Gdal makes a mistake about this
Canadian aspect of ntv2?<br>
<br>
</font>
<div class="moz-cite-prefix">On 06/25/2013 04:36 PM, Andre Joost
wrote:<br>
</div>
<blockquote cite="mid:kqca02$u1$1@ger.gmane.org" type="cite">Hi Jan,
<br>
<br>
what strikes me is that
<br>
<br>
<blockquote type="cite">pj_apply_gridshift(): failed to find a
grid shift table for
<br>
location (6.7638472dW,53.0926086dN)
<br>
</blockquote>
<br>
and
<br>
<br>
<blockquote type="cite">The source raster has epsg:28992
<br>
</blockquote>
<br>
does not fit together. The first is in Ireland, and EPSG:28992 is
valid in the Netherlands. Should it not rather be 6.76 East?
<br>
<br>
Greetings,
<br>
André Joost
<br>
<br>
_______________________________________________
<br>
gdal-dev mailing list
<br>
<a class="moz-txt-link-abbreviated" href="mailto:gdal-dev@lists.osgeo.org">gdal-dev@lists.osgeo.org</a>
<br>
<a class="moz-txt-link-freetext" href="http://lists.osgeo.org/mailman/listinfo/gdal-dev">http://lists.osgeo.org/mailman/listinfo/gdal-dev</a>
<br>
</blockquote>
<br>
</body>
</html>