On Fri, Sep 17, 2010 at 10:18 PM, Bino Oetomo <[email protected]> wrote:
> Dear All
>
> >From http://docs.geoserver.org/2.0.0/user/styling/sld-cookbook/points.html
> Sub : Zoom-based point
>
> The 4th line of code said :
> <MaxScaleDenominator>160000000</MaxScaleDenominator>
>
> How is the relefance of SacleDenominator with what displayed at the map
> as (i.e) : "Scale = 1 : 8717" ?
>

<MaxScaleDenominator>8717</MaxScaleDenominator>

Will do that (assuming that both GeoServer and your client agree on
the size of a pixel).

> I want to choose what to displayed based on zoom level

Real Geographers TM don't do zoom levels :-)  The reason for this is
that zoom levels don't really mean anything while scale ratios
actually encode real information about the map. If you double the size
of your map the scale halves but the zoom level stays the same, yet
you can clearly get two (four?) times the information in to the map.

Ian
-- 
Ian Turton

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