[mapserver-users] MspServer Cluster Problem.

[Tamas Szekeres]

You are using CLASSITEM "status" but you have only classes defined for "E"
and "D" in the layer. The status value is empty for those clusters which
has mixed values of the same attribute in the individual shapes contained
by the cluster and probably these clusters are not displayed.

However with the recent version of mapserver (in master) this behaviour has
been changed.

Best regards,

Tamas



2014/1/9 LewInMadrid <LCLARK at genasys.com>

> I'm trying to cluster a few thousand points but as I zoom out points
> disappear until I have an almost empty map instead of a few cluster symbols
> with big numbers.
>
> I'm using MapServer v6.0.2
> Here's an example with 2 different zoom levels.
> <http://osgeo-org.1560.x6.nabble.com/file/n5097138/map_zoom_in.png>
> <http://osgeo-org.1560.x6.nabble.com/file/n5097138/map_zoom_out.png>
>
>   LAYER
>     NAME "my_point_layer"
>     STATUS ON
>     CONNECTIONTYPE POSTGIS
>     CONNECTION "host=127.0.0.1 port=5432 dbname=rasterdb user=postgres
> password=postgres"
>     DATA "g_point FROM my_point_table USING UNIQUE gid USING SRID=900913"
>     TYPE POINT
>     PROJECTION
>       "init=epsg:900913"
>     END
>     CLUSTER
>       MAXDISTANCE 30  # in pixels
>       REGION "rectangle"  # can be rectangle or ellipse
>     END
>     LABELITEM "Cluster:FeatureCount"
>     CLASSITEM "status"
>     CLASS
>       NAME       "D"
>       EXPRESSION "D"
>       STYLE
>         SYMBOL "circle"
>         ANTIALIAS TRUE
>         SIZE 8
>         OUTLINECOLOR 0 0 0
>       END
>     END
>     CLASS
>       NAME       "E"
>       EXPRESSION "E"
>     #  TEXT "[idelem]"
>       STYLE
>         SYMBOL "circle"
>         ANTIALIAS TRUE
>         SIZE 25
>         COLOR 0 255 0
>         OUTLINECOLOR 0 0 0
>       END
>       LABEL
>         FONT     vera_sans-bold-italic
>         TYPE TRUETYPE
>         SIZE 8
>         COLOR 0 0 0
>         OUTLINECOLOR 255 255 255
>         ALIGN CENTER
>         PRIORITY 9
>         POSITION cc
>       END
>     END
>   END
>
>
>
>
>
>
> --
> View this message in context:
> http://osgeo-org.1560.x6.nabble.com/MspServer-Cluster-Problem-tp5097138.html
> Sent from the Mapserver - User mailing list archive at Nabble.com.
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