[mapserver-users] CLUSTER - Average Value

[Tamas Szekeres]

May be I misunderstood something, but the requirement of "style the
clusters a different colour depending on the calculation of that
expression" requires only one class per expression condition.

Tamas



2013/3/22 thomas bonfort <thomas.bonfort at gmail.com>

> 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
> >>>>
> >>>
> >>
> >
> >
> > _______________________________________________
> > mapserver-users mailing list
> > mapserver-users at lists.osgeo.org
> > http://lists.osgeo.org/mailman/listinfo/mapserver-users
> >
>
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