[Community] On the way to 0.6: two more things

[Ludwig Max Brinckmann]

No, I hoped it was, and I just double checked again (the min/max meaning
just confuses me), but the issue is still the same.

On 7/2/06, Sean Gillies <sgillies at frii.com> wrote:
>
> Just to be clear, was this fixed in r742?
>
> Sean
>
> On Jun 26, 2006, at 11:26 AM, Ludwig Max Brinckmann wrote:
>
> > 1) I think the GeoAwareObjects package still needs to be brought in
> > line with the new interfaces, changing the old __implements__
> > notation to implements(IGeoAware) plus including an from
> > zope.interface import implements line at the top.
> > The only thing then not working is in GPSTrack the setAlternative
> > method, which I did not investigate, the original authors will
> > probably fix it in a second.
> >
> > 2) Rules: I am trying to do the following: for the provincial
> > capital I have a way to render the symbolizers small when the
> > mapscale is large, and larger when the scale is small to better
> > distinguish it from other places.
> >
> > I am scripting this like this:
> > places.addStyleRule(name='Provincial Capital',
> >                     max_scale = -1,
> >                     min_scale = 4000000,
> >                    filter_expr='str(f.KIND) == "provincialcapital"',
> >                    symbolizers=[ places.provincialcapital.UID
> > (),places.textsmall.UID()])
> >
> > places.addStyleRule(name='Provincial capital',
> >                    min_scale = -1,
> >                    max_scale = 4000000,
> >                    filter_expr='str(f.KIND) == "provincialcapital"',
> >                    symbolizers=[ places.provincialcapitallarge.UID
> > (),places.textlarge.UID()])
> >
> > (note the spelling of Provincial _C_apital with lower/upper case C
> > to get around the fact I cannot have different rules with the same
> > name - not so good as this shows up in the legend (it would be
> > better to have a legend display separate from the rule name).)
> >
> > So I would expect this to work that at scale 1:5000000 the smaller
> > dot and smaller text is displayed, while at 1:3000000 the larger
> > dot and larger text appears. Each individual of these rules work
> > fine in isolation.
> >
> > But having both rules there at the same time actually makes the
> > large symbolizers appear at large scale (which it shouldn't, the
> > small dot and text should appear) and nothing to appear at scale
> > e.g. 1:3000000.
> >
> > Separating the text and point symbolizers out does not solve the
> > problem:
> >
> > places.addStyleRule(name='Provincial CapitalT',
> >                     max_scale = -1,
> >                     min_scale = 4000000,
> >                    filter_expr='str(f.KIND) == "provincialcapital"',
> >                    symbolizers=[ places.textsmall.UID()])
> >
> > places.addStyleRule(name='Provincial Capital',
> >                     max_scale = -1,
> >                     min_scale = 4000000,
> >                    filter_expr='str(f.KIND) == "provincialcapital"',
> >                    symbolizers=[ places.provincialcapital.UID()])
> >
> > places.addStyleRule(name='Provincial capitalT',
> >                    min_scale = -1,
> >                    max_scale = 4000000,
> >                    filter_expr='str(f.KIND) == "provincialcapital"',
> >                    symbolizers=[ places.textlarge.UID()])
> >
> > places.addStyleRule(name='Provincial capital',
> >                    min_scale = -1,
> >                    max_scale = 4000000,
> >                    filter_expr='str(f.KIND) == "provincialcapital"',
> >                    symbolizers=[ places.provincialcapitallarge.UID()])
> >
> > I have tried a similar thing with line symbolizers (motorways first
> > visible as small double lines in a large scale map, with divider on
> > a smaller scale) and it produces the same result.
> >
> > Something is getting confused here (I hope its not me -- but I have
> > now (finally!) my entire map scripted, so I am much quicker to
> > reproduce any errors.)
> >
> > Ludwig
> >
> >
> > _______________________________________________
> > Community mailing list
> > Community at lists.gispython.org
> > http://lists.gispython.org/mailman/listinfo/community
>
> ---
> Sean Gillies
> http://zcologia.com
>
>
>
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>



-- 
Ludwig M Brinckmann
phone: 020 7254 1181
mobile: 07949 460787
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