[mapserver-users] CLUSTER - Average Value

[Tamas Szekeres]

I think adding multiple classes to the clustered layer (with multiple
expressions regarding to the intervals) should do the job.

Best regards,

Tamas



2013/3/22 Mark Davidson <mark at 4each.co.uk>

> That works great thanks Tamas. I'm now trying to use that expression as a
> condition on a class.
>
> I'm trying to style the clusters a different colour depending on the
> calculation of that expression. Can multiple styles be applied to a single
> cluster point?
>
> CLASS
>       NAME "Clustered Point"
>       EXPRESSION ("[Cluster:FeatureCount]" != "1")
>       STYLE
>         SIZE 22
>         SYMBOL "circle"
>         COLOR 255 0 0
>       END
>       LABEL
>       TEXT ([Sum:lowesttemperature]/[Count:lowesttemperature])
>       FONT "arial"
>   TYPE truetype
>         SIZE 8
>         COLOR 255 255 255
>       END
>     END
>
>   CLASS
>       EXPRESSION (([Sum:lowesttemperature]/[Count:lowesttemperature]) > 1)
>       STYLE
>         SYMBOL "circle"
>         COLOR 0 255 0
>       END
>   END
>
>
>
> On 22 March 2013 13:15, Tamas Szekeres <szekerest at gmail.com> wrote:
>
>> Mark,
>>
>> I think LABEL level expressions would work in this case. Something like:
>>
>>      LABEL
>>         TEXT ([Sum:itemname]/[Count:itemname])
>>         TYPE TRUETYPE
>>         ...
>>       END
>>
>> Best regards,
>>
>> Tamas
>>
>>
>>
>> 2013/3/22 Mark Davidson <mark at 4each.co.uk>
>>
>>> Hi All,
>>>
>>> I'm new to using mapserver and have been implementing a WMS overlay
>>> using the CLUSTER funcionality got pretty much everything I need working,
>>> but I can't seem to get an average value of a cluster to use as part of the
>>> styling and labelling.
>>> I've tried everything I can think of to try and get it working but am
>>> having no luck. I thought that since you can do [Max:itemname] and
>>> [Count:itemname] I would be able to do an equation to work out the average,
>>> but I just get syntax errors with everything I try and haven't been able to
>>> find any examples of doing this.
>>>
>>> Could anyone tell me if its possible to do this? And if so provide an
>>> example?
>>>
>>> Any input would be very much appreciated,
>>>
>>> Thanks,
>>>
>>> Mark Davidson
>>>
>>> _______________________________________________
>>> mapserver-users mailing list
>>> mapserver-users at lists.osgeo.org
>>> http://lists.osgeo.org/mailman/listinfo/mapserver-users
>>>
>>>
>>
>
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