[mapguide-users] Tile alignment issue in Internet Explorer 10 with Fusion and HTTP tiles

[Bernhard Maehler]

I've configured Fusion (bundled Version with MGOS 2.4, PHP and Apache) to use
HTTP tiles.
It works like a charm and combined with SQLite as datasource for dynamic
data the performance is like Google Maps.

Steps:
1) Pre generation of all tiles
2) Exposing a tile cache directory via apache httpd.conf (Alias)
3) Moving all tiles to the exposed directory (Alias)
4) Adjust "tileCacheUrl" in config.json (you can define multiple hosts!)
5) Finally adjust ApplicationDefinition.xml
(<useHttpTile>true</useHttpTile>):
 ...
 <MapSet>
    <MapGroup id="Luftbildkarte">
      <Map>
        <Type>MapGuide</Type>
        <SingleTile>false</SingleTile>
        <Extension>
         
<ResourceId>Library://GeoPortal_Hilden/Karten/oeffentlich/Luftbildkarte.MapDefinition</ResourceId>
          <ImageFormat>PNG8</ImageFormat>
		  <SelectionAsOverlay>true</SelectionAsOverlay>
          <SelectionColor>0x3299CC</SelectionColor>
          <Options>
            <SingleTile>false</SingleTile>
            <useHttpTile>true</useHttpTile>
            <buffer>0</buffer>
			<isBaseLayer>true</isBaseLayer> 
			<userOverlay>true</userOverlay> 
			<projection>EPSG:25832</projection>
          </Options>
        </Extension>
      </Map>
      <Extension />
    </MapGroup>
  </MapSet>
...

Problem:
The implementation of HTTP tiles works fine with Firefox, Google Chrome and
IE 9.
With IE 10 (Version: 10.0.9200.16521, German OS on Windows 7 64-Bit) the
base map tiles would suddenly become jumbled or misaligned after
manipulating the map (panning, zooming) a few times.
<http://osgeo-org.1560.n6.nabble.com/file/n5041447/tiles.png> 
I have searched and found this blog entry
https://github.com/openlayers/openlayers/issues/686
<https://github.com/openlayers/openlayers/issues/686>  
which refers to the problem.

Can anyone reproduce this issue?

Thanks 
Bernhard



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