I had been trying to deal with this issue for a while, and just attempted the above correction. What do you know, it worked. The projection showed up on my map, with the correct location in it's CRS.<br><br>Where I'm continuing to have problems is when I set "on the fly transformation" on. The image disappears, and I cannot zoom to its location. It seems to give itself the Michigan Oblique Mercator SRS. My project is either in WGS 84 or UTM Zone 17. Under WGS 84 it appears, but distorted and in the wrong position. Under UTM Zone 17, it doesn't appear at all.<br>
<br>To avoid this, I attempted to warp the projection to a more useful CRS. The following error was received:<br><br>gdalwarp -s_srs EPSG:3078 -t_srs EPSG:26917 WYANDOTTE_NE.ecw WYANDOTTE_NE_UTM.ecw<br>ERROR 1: latitude or longitude exceeded limits<br>
ERROR 1: Too many points (11881 out of 11881) failed to transform,<br>unable to compute output bounds.<br><br>I'm beginning to believe the CRS contained in the file is not correct, but I was hoping for someone more experienced to make this judgment.<br>
Thoughts?<br><br><br><div class="gmail_quote">On Wed, Jul 13, 2011 at 11:31 AM, <span dir="ltr"><<a href="mailto:jonathanmoules@warwickshire.gov.uk">jonathanmoules@warwickshire.gov.uk</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<font face="Arial" size="3">I can confirm my file has a .ecw.aux.xml</font><br><br><font face="Arial" size="3">If I remove the ".xml" from the
file name it does work in qgis.</font><br><font face="Arial" size="3">Thanks</font><br><font face="Arial" size="3">Jonathan </font><br><br><br><font face="sans-serif" color="#5f5f5f" size="1">From:
</font><font face="sans-serif" size="1">Giovanni Manghi <<a href="mailto:giovanni.manghi@gmail.com" target="_blank">giovanni.manghi@gmail.com</a>></font><br><font face="sans-serif" color="#5f5f5f" size="1">To:
</font><font face="sans-serif" size="1"><a href="mailto:jonathanmoules@warwickshire.gov.uk" target="_blank">jonathanmoules@warwickshire.gov.uk</a></font><br><font face="sans-serif" color="#5f5f5f" size="1">Cc:
</font><font face="sans-serif" size="1"><a href="mailto:qgis-user@lists.osgeo.org" target="_blank">qgis-user@lists.osgeo.org</a></font><br><font face="sans-serif" color="#5f5f5f" size="1">Date:
</font><font face="sans-serif" size="1">13/07/2011 16:15</font><div class="im"><br><font face="sans-serif" color="#5f5f5f" size="1">Subject:
</font><font face="sans-serif" size="1">Re: [Qgis-user]
ECW Projection</font><br></div><hr noshade><div class="im"><br><br><br><tt><font size="2"><br>> Just wondering if the project was aware
of this as part of<br>> their ongoing ECW issues, but when you load a geo-referenced ECW into<br>> QGIS, it doesn't actually get properly referenced. Even if you<br>> manually set the projection for both the layer and the project it<br>
> remains un-referenced with QGIS giving 0,0 co-ords to the top-left
of<br>> the image. This same ECW works fine in GvSIG, Kosmo, MapWindow and<br>> ArcGIS. It's projected to EPSG: 27700. <br><br><br><br>I was chatting a while ago with W. Macho and it was saying to me that it<br>
had a similar problem, with all his ECWs rasters to render on top of<br>each other, as they don't had any referencing.<br><br>A few tests and we find the issue. It depends on the extension of the<br>file that (I guess) define the referencing. If the file is .aux then it<br>
si fine for gdal, if it is .aux.xml (if I recall correctly) it seems<br>that gdal can't read the referencing.<br><br>cheers<br><br>-- Giovanni --<br><br></font></tt><br><br>
<br></div><div><div></div><div class="h5">
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<br></blockquote></div><br><br clear="all"><br>-- <br><div>all the best,</div>
<div>Lee</div><br>