[maplab-users] Empty map frame when zooming in tutorial map

[Kurt.Gerber@cde.unibe.ch]

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Hi,
I have successfully installed mapserver 3.6.5 with mapscript and maplab 
2.0release (final) on php 4.3.2rc2 on a debian woody.
To test my installation, I used the tutorial map from maplab.
When I load the mapfile in MapEdit, everything works fine. When I click on 

"preview map" the map shows up with no error.
But when I then try to redraw the map by zooming in, the map frame remains 

blank. The map doesn't show up again. 
Which setting is wrong? 

I have made the same request a month ago, and Paul Spencer gave me the 
following answer: 

> There was a bug in the preview that caused the layer controls not to 
> show up.  When zooming, the page submits and layer visibility is 
> maintained by the layer controls (checkboxes). Because these never made 
> it into the page, all the layers get turned off.  Closing the preview 
> and reopening causes the map to be displayed again.  If these are your 
> symptoms, please grab the latest nightly build as we have fixed this 
> problem.

> Cheers,

> Paul

But, installing the newest version of maplab: 2.0 final, didn't help.
So probably I'm doing something wrong.. but what?

Kurt Gerber
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<br><font size=2><tt>Hi,<br>
I have successfully installed mapserver 3.6.5 with mapscript and maplab
<br>
2.0release (final) on php 4.3.2rc2 on a debian woody.<br>
To test my installation, I used the tutorial map from maplab.<br>
When I load the mapfile in MapEdit, everything works fine. When I click
on <br>
&quot;preview map&quot; the map shows up with no error.<br>
But when I then try to redraw the map by zooming in, the map frame remains
<br>
blank. The map doesn't show up again. <br>
Which setting is wrong? </tt></font>
<br>
<br><font size=2><tt>I have made the same request a month ago, and Paul
Spencer gave me the following answer: </tt></font>
<br><font size=2 face="sans-serif"><br>
&gt;</font><font size=2><tt> There was a bug in the preview that caused
the layer controls not to <br>
&gt; show up. &nbsp;When zooming, the page submits and layer visibility
is <br>
&gt; maintained by the layer controls (checkboxes). Because these never
made <br>
&gt; it into the page, all the layers get turned off. &nbsp;Closing the
preview <br>
&gt; and reopening causes the map to be displayed again. &nbsp;If these
are your <br>
&gt; symptoms, please grab the latest nightly build as we have fixed this
<br>
&gt; problem.<br>
<br>
&gt; Cheers,<br>
<br>
&gt; Paul</tt></font>
<br>
<br><font size=2><tt>But, installing the newest version of maplab: 2.0
final, didn't help.</tt></font>
<br><font size=2><tt>So probably I'm doing something wrong.. but what?</tt></font>
<br>
<br><font size=2><tt>Kurt Gerber</tt></font>
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