It is more that give BBOX and width/height we can calculate SCALE.
So my comment was what to do if the user supplies both, and my answer was trust
the user supplied SCALE (even if it is "wrong") as they probably know what they
are doing.
Note: SCALE exists now (you can use it in your example to "switch legends"). I
am just trying to ensure we are clear about what happens.
--
Jody Garnett
On Wednesday, 15 May 2013 at 7:12 PM, Phil Scadden wrote:
>
> > If both the SCALE and BBOX information is provided … think we better use
> > the provided SCALE? (i.e. the user is asking a specific question "show me a
> > legend at this scale, but limit the feature content to the indicated area).
> >
> So SCALE will tell you which rule to use in SLD but doesnt BBOX still help
> decide which elements are needed in the legend?
>
> A little diversion here, perhaps should be in the user list...
>
> I have a geology, with 3 distinct levels of generalisation. (50k, 250k and
> 1m). The generalisations are not trivial. They also have legends which are
> radically different. As far as I know you cant switch layers within SLD
> rules. It would however be kind of cool and then the SCALE could be used to
> switch legends too.
>
> At the moment, I do this on client - switch geoserver layers on/off in
> background while associating all with same item on the legend.
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