[mapserver-users] Clustering and style with [attribute]

[Jörg Thomsen (WhereGroup)]

Hello me,

OK, with an 'order by' it works für grey and blue
  100 100 100
  0 255 0
the last value is taken.

But what to do with a third color?
255 0 0
100 100 100

Regards, Jörg


Am 23.07.20 um 16:34 schrieb Jörg Thomsen (WhereGroup):

> Hello,
> 
> there's a clustered feature / class in my mapfile.
> the color of the features are stored in the database.
> 
> LAYER
>     NAME "lightrail"
>     GROUP "default"
>     ...
>     CLUSTER
>       MAXDISTANCE 50
>       REGION "ellipse"
>     END
>     CLASS
>       NAME "Clustered Lightrail Stations"
>       EXPRESSION ("[Cluster_FeatureCount]" != "1")
>       STYLE
>         SIZE 30
>         SYMBOL "citycircle"
>         COLOR ['color']
>       END
>     END
> ...
> END
> 
> If there are 4 features clustered into one symbol and each feature has a
> different attribut-value 'color':
> 
> f1 | 100 100 100
> f2 | 100 100 100
> f3 | 0 0 255
> f4 | 100 100 100
> 
> which color is used an why is it used?
> 
> My goal:
> If all features of a cluster have the color-value 100 100 100, it is ok,
> that the cluster-symbol ist grey. If only one of the clustered features
> has the color-value 0 255 0 (and the other values are '100 100 100') the
> cluster-symbol should be blue.
> 
> How can I achive this?
> 
> Viele Grüße,
> Jörg
> 


Viele Grüße,
Jörg Thomsen

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