<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
I had the same issue. Unfortunately I did not find a way to solve
it, however, I am doing a workaround by converting the ecw-files
into JPEGs using gdal_translate (in QGIS this would be under
>Raster >Conversion >translate). The JPEGs will have the
same size as the ecw's and you get rid of that zoom-problem and many
other issues caused by ECW.<br>
<br>
<div class="moz-cite-prefix">On 05/31/2014 03:41 AM, CornGiS [via
OSGeo.org] wrote:<br>
</div>
<blockquote style='border-left:2px solid #CCCCCC;padding:0 1em' cite="mid:1401482384620-5143348.post@n6.nabble.com"
type="cite"> I opened a 490mb ecw image in QGIS on my mac (using
the ecw 1.10.1 GDAL-ECW plug-in & 5.1.1. ERDAS Image
Compression SDK read-only for desktop).
<br>
<br>
The ecw is loaded in less than a second, but it seems that QGIS
does not manage to completely uncompress the ecw file, as zooming
in results in a blurry picture. If I open the ecw file using
IrfanView I can zoom in without any problem and get a decent
picture..
<br>
<br>
Did anybody have a similiar experience? Does anybody know how to
fix this problem? Any help is appreciated, thank you! <br>
<br>
<hr color="#cccccc" noshade="noshade" size="1">
<div style="color:#444; font: 12px
tahoma,geneva,helvetica,arial,sans-serif;">
<div style="font-weight:bold">If you reply to this email, your
message will be added to the discussion below:</div>
<a moz-do-not-send="true"
href="http://osgeo-org.1560.x6.nabble.com/Problem-zooming-in-on-ECW-files-in-QGIS-tp5143348.html" target="_top" rel="nofollow" link="external">http://osgeo-org.1560.x6.nabble.com/Problem-zooming-in-on-ECW-files-in-QGIS-tp5143348.html</a>
</div>
<div style="color:#666; font: 11px
tahoma,geneva,helvetica,arial,sans-serif;margin-top:.4em;line-height:1.5em">
To unsubscribe from Quantum GIS - User, <a
moz-do-not-send="true"
href="" target="_top" rel="nofollow" link="external">click
here</a>.<br>
<a moz-do-not-send="true"
href="http://osgeo-org.1560.x6.nabble.com/template/NamlServlet.jtp?macro=macro_viewer&id=instant_html%21nabble%3Aemail.naml&base=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespace&breadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml" rel="nofollow" style="font:9px serif" target="_top" link="external">NAML</a> </div>
</blockquote>
<br>
<br/><hr align="left" width="300" />
View this message in context: <a href="http://osgeo-org.1560.x6.nabble.com/Problem-zooming-in-on-ECW-files-in-QGIS-tp5143348p5143370.html">Re: Problem zooming in on ECW files in QGIS</a><br/>
Sent from the <a href="http://osgeo-org.1560.x6.nabble.com/Quantum-GIS-User-f4125267.html">Quantum GIS - User mailing list archive</a> at Nabble.com.<br/>