[mapguide-users] TileCache, dynamic layers, and the Session

[Kenneth Skovhede, GEOGRAF A/S]

I have done something similar with OpenLayers.
You need to have two maps, and then make the background of the top layer 
transparent.
(You can do it by editing the xml of the MapDefinition).
Then you add both maps as layers in OpenLayers, and the lower one will 
have tiles,
and the upper one will be rendered dynamically.

For WebLayouts, this will not be an easy task.

Regards, Kenneth Skovhede, GEOGRAF A/S



gingerbbm skrev:
> Dear all
>
> If I'm dynamically adding a session-specific layer to a map that employs
> base layer groups (i.e. tiles), is there any way to avoid having a
> session-specific tile cache generated?
>
> The dynamic layer is served via a separate request
> (GETDYNAMICMAPOVERLAYIMAGE) as a separate image - so in theory I should be
> able to have one tile cache used by all sessions.
>
> If this isn't possible it rather defeats the object of having a tile cache
> at all.
>
> Any thoughts?
>
> Thanks
> Stuart
>