[mapserver-users] Cut off/missing tiles

[Charlie Allgrove]

Hi

 

I have an issue which seems to relate to tile-edge buffering and world-view
zoom levels.

 

There's an example page at http://mapserver.magicsite.co.uk

 

When you first visit the page, all seems normal, until you zoom out 1 level,
at which point the tile which should sit over the west of the US doesn't
display.

>From what I can see, when tile-edge buffering is ON and the tile next tile
wraps around the world, the tile in question is not rendered.

Turn edge-buffering off and that tile is rendered correctly. Unfortunately,
I'm in a position where I can't turn the buffering off.

 

from the mapfile:
WEB

    METADATA

        "wms_title" "xxxx"

        "wms_onlineresource" "xxxx"

        "wms_srs" "EPSG:4326"

        "tile_map_edge_buffer" "9" # 9 pixel rendering buffer

        "http_max_age" "86400"

    END

  END

 

As far as I can tell, everything else is working correctly. 

What I'm not clear on - is this a bug in the edge buffering within the
software, or am I doing something wrong?

 

The server running the example URL is  currently using version 5.7-dev, but
the same issue is also apparent on a production server running v6.0.2

 

Interested to know if anyone else has experienced the same issue?

 

Regards

 

Charlie

 

--

Charlie Allgrove

Senior Developer

 

Connection Services :: Business Mobility for a Wireless World

 

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