GeoStream: tile.aspx returns empty tile

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    Hi,

    When testing the http://localhost/GeoStream/tile.aspx?t=0,0,300,4,1 as described in the help, all I get is an empty tile (Color=Tan, I think). Chaning the zoom/nbr of subtiles make no difference.

    I know the maps are installed properly because the desktop demos work fine.

    Any ideas?

    Thanks,

    /Andreas
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      CommentAuthorPepitaL
    • CommentTimeOct 21st 2009
     
    hi Andreas,

    Have you checked that your data are in the right folder ie C:\Program Files\Telogis\GeoBase\GeoBaseResources\Data\ and that you have the global data file containing the world map?
    You can download it from here: http://geozone.geobase.info/gbfile/data/2008.3/gb.3.0/82ty5n6p/Navteq_Global_8Q3_30x1.zip

    I hope this helps.
    Pepita
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    Hi Pepita,

    Yes, the maps are all there. All demos that use the non-GeoStream way of accessing the maps work fine.

    I suspect that the tile-rendering code in GeoStream can not access the maps for some reason. Instead of reporting this, it seems like some Exception is being swallowed and the result is a land-colored tile, i.e. the first thing that is drawn. I've tried giving the ASPNET-user full access to the map-data directory but this has not helped.

    I have a support ticket open with GeoBase support, I'll post here when/if we figure it out.

    Thanks,

    /A
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    Ok, so we got it working. Turned out there was something wrong with the "Global" .gfds-file that we were using, we replaced it with a new one and it worked.

    One thing I noticed was that for the non-workin "Global" .gfds file, the C:\GeoStreamcache folder had a subdirectory called "0". Now when its working there is a directory called "D12CD747" which looks like some map Id. So perhaps the previous map file had not been registered properly before being sent to us, thus getting a map Id of 0, or something like that.

    Hope it helps someone,

    /A

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