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List:       mapserver-dev
Subject:    Re: [mapserver-dev] Support for the MapInfo style zoom
From:       Daniel Morissette <dmorissette () mapgears ! com>
Date:       2008-06-25 21:48:50
Message-ID: 4862BD42.7050808 () mapgears ! com
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I'm not sure that I like moving minscaledenom and mascaledenom into a 
REQUIRES expression... the current approach with explicit keywords is 
simple and intuitive to use and understand for new users... embedding 
that into the REQUIRES expression will make a simple system more 
powerful, but also more complicated. I think in this specific case I'd 
be more in favor of new keywords to specify minmapwidth/maxmapwidth in 
parallel with minscaledemom/maxscaledenom and let the users pick the one 
they like.

Daniel


Tamas Szekeres wrote:
> 2008/6/25 Steve Lime <Steve.Lime@dnr.state.mn.us>:
> > If we went the way of using "REQUIRES" as a long term goal then I don't think \
> > it's worth adding parameters with the intent of pulling them shortly. I think \
> > generalizing REQUIRES, with a custom parser as you mention is the best solution. \
> > I think there is some leeway in syntax and we can talk about maintaining \
> > backwards compatibility with respect to [layername].
> > 
> > If your contract doesn't afford time to pursue the REQUIRES approach right now \
> > then perhaps a more hackish, temporary solution would be to hijack minscaledenom \
> > and maxscaledenom and use a processing directive to trigger the different \
> > interpretation. 
> 
> Steve,
> 
> I'm also in favour of this solution, and if it can be accepted by the
> user then I'll be trying to focus on msEvalContext and implement
> something inside, instead of adding new mapfile elements.
> I'll create another proposal with regards to my expected syntax in
> case if I have something working.
> 
> 
> Best regards,
> 
> Tamas
> _______________________________________________
> mapserver-dev mailing list
> mapserver-dev@lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/mapserver-dev


-- 
Daniel Morissette
http://www.mapgears.com/
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