Hey,<br><br>I suspect you are running into this <a href="http://gis.stackexchange.com/questions/87841/why-qgsmapcanvas-only-appear-after-lost-focus">http://gis.stackexchange.com/questions/87841/why-qgsmapcanvas-only-appear-after-lost-focus</a><div><br></div><div>Here is a "fix" <a href="http://gis.stackexchange.com/a/92734/97">http://gis.stackexchange.com/a/92734/97</a></div><div><br></div><div>- Nathan</div><br><div class="gmail_quote">On Tue Nov 25 2014 at 9:34:14 AM Alexia Mondot <<a href="mailto:alexia.mondot@free.fr">alexia.mondot@free.fr</a>> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#6633FF" bgcolor="#CCCCFF">
<div>Thanks for your answer. <br>
<br>
Actually, I wonder if my refresh problem is not only on QGIS 2.2.
I believe I had not reproduce this behaviour on QGIS 2.4 and 2.6.
And I didn't know about the bug. <br>
I have these two points to analyse.<br>
<br>
The multithread rendering was available in QGIS 2.2 ??<br>
<br>
I'm going to work on the two previous points. <br>
<br>
Thanks again, <br>
Alexia</div></div><div text="#6633FF" bgcolor="#CCCCFF"><div><br>
<br>
<br>
On 24/11/2014 23:52, Luigi Pirelli wrote:<br>
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<blockquote type="cite">
<pre>could be related with this?
<a href="https://hub.qgis.org/issues/9799" target="_blank">https://hub.qgis.org/issues/9799</a>
check OTF reprojection combination
regards, Luigi Pirelli
On 24 November 2014 at 23:49, Luigi Pirelli <a href="mailto:luipir@gmail.com" target="_blank"><luipir@gmail.com></a> wrote:
</pre>
<blockquote type="cite">
<pre>may you also test with the last 2.6version?
regards, Luigi Pirelli
On 24 November 2014 at 01:16, Alexia Mondot <a href="mailto:alexia@mondot.fr" target="_blank"><alexia@mondot.fr></a> wrote:
</pre>
<blockquote type="cite">
<pre>Hi all,
I have a plugin using a customized version of Dockable Mirror Map.
I use it to display each processing result in a new view.
I get a strange behaviour with my plugin :
Some times, the canvas stays white. A scroll in it is fine to reload it and
my image is displayed.
I get this problem since the beginning of the development on QIGS 2.2. It is
for me a "random" problem, because I can't say why I get these white canvas.
But, when I get it I save the projet with the white view, and when reloaded,
the canvas is still white.
I've played with canvas.refresh(), canvas renderer flags and even with
canvas.freeze().
I can't understand the behaviour I get, maybe I have a wrong usage of the
properties above.
I also thought about triggerRepaint()...
Thanks by advance,
Alexia
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