Does anyone have any working examples of how they implemented clustering without the tile clipping?
Thanks. On 11 January 2012 10:00, Wim Vanbelle <wimvanbe...@gmail.com> wrote: > 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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