[mapserver-users] CLUSTER - Average Value

[thomas bonfort]

Unless the cluster introduced some new codepaths in the rendering
chain, I do not think this is the case. Only a *single* class gets
used per rendered feature (the first one matching all expression and
min/maxscale constraints)

--
thomas

On 22 March 2013 14:59, Tamas Szekeres <szekerest at gmail.com> wrote:
> 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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