Hi,
I'm very happy that mapserver is now capable of server side clustering.
However I wonder if it's possible to completely get rid of the tile
clipping.
Currently I've clustered a point layer with 44k points:
CLUSTER
MAXDISTANCE 100
REGION "ellipse"
END
It is displayed with a simple image:
STYLE
SYMBOL "small_shaded.png"
SIZE 21
OUTLINECOLOR 0 0 0
END
However, when viewing this on google maps, the images are often clipped at
the tile edges.
I figured that I could solve this with mapcache:
<tileset name="ld">
<source>ld</source>
<cache>disk</cache>
<grid>g2</grid>
<format>PNG</format>
<metatile>2 2</metatile>
<metabuffer>30</metabuffer>
<expires>3600</expires>
<auto_expire>2592000</auto_expire>
</tileset>
i've tried higher values for metatile and it helps a bit, but the problem
simply shifts location. Also with higher values (eg 5 5 metatile) mapserver
doesn't return the tiles on time for mapcache and I get gaps in my results.
Would preseeding the data help with the timeouts? Any other solutions that
I may try? The metadata parameter for tile_edge buffer only works with
labels as far as i know.
Thanks in advance, this issue has been troubling me for some time now :).
Best regards,
Wim
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