Fwd: Re: [Qgis-developer] Wiki page: switching from old to new symbology, missing bits

[Robert Rehammar]

Hi Andreas,

Nice to hear about the SQL in labeling, that would be a great thing.

Regarding the grouping. The feature now implemented is not quite what I
meant. Now you can group by filter or by scale, I meant that you should
be able to apply two filters in a row. I understand that this might be a
bit tricky to program, but it would be quite nice. I know that one can
achieve the same with the SQL AND today, but this way you get very many
filters (# categories in filter 1 times # categories in filter 2) which
is inconvenient for the user.

Cheers,
Robert


On Wed, 2011-01-19 at 08:16 +0100, Andreas Neumann wrote:
> sending this also to the list, since my answer only went to Robert.
> 
>  Andreas
> 
>  -------- Original Message --------
>  Subject: Re: [Qgis-developer] Wiki page: switching from old to new 
>  symbology, missing bits
>  Date: Wed, 19 Jan 2011 07:58:38 +0100
>  From: Andreas Neumann <a.neumann at carto.net>
>  To: Robert Rehammar <robert at rehammar.se>
> 
>  Hi Robert,
> 
>  I think what you propose would be very nice to have. Currently I am 
>  doing this in a Postgis view.
> 
>  Given that we already have the field calculator one could re-use this 
>  functionality for this purpose.
> 
>  Rule-based renderer and hierarchies: I believe this is already possible 
>  with the filter grouping. There is group by scale or group by filter. 
>  Does this satisfy your needs?
> 
>  Please go ahead and modify the wiki, but also don't forget to open a 
>  feature request. If you do a feature request in the bug tracker you can 
>  add the corresponding link to the wiki.
> 
>  Andreas
> 
>  On Tue, 18 Jan 2011 20:15:38 +0000, Robert Rehammar wrote:
> > Hi,
> >
> > I'm not sure if this is out of scope for the new label engine, but it
> > would anyway be a nice feature:
> >
> > Make the label text an answer to a SQL question instead of a single
> > field. In particular, make it possible to form strings from several
> > fields and fixed strings, e.g.
> > label = my_first_column + " " + my_second_column.
> > It should also be possible to add control characters, e.g. "\n".
> >
> > For the rule-based symbology, make it hierarchical, so that it could
> > look e.g. like
> > if my_fist_column = 1
> >   if my_second_column = 1
> >   if my_second_column = 2
> > if my_fist_column = 2
> >   if my_second_column = 1
> >   if my_second_column = 2
> >
> > Controlling e.g. the second rule should make it change in all
> > appropriate places, e.g. changing the if my_second_column = 1 to
> > if my_second_column = 3 should change this on all places.
> >
> > Cheers,
> > Robert
> >
> > On Tue, 2011-01-18 at 15:58 +0100, Andreas Neumann wrote:
> >> Hi,
> >>
> >>  As Paolo suggested, I started a wiki page for problems/missing bits 
> >> in
> >>  the new symbology. Please add your issues, so we can get a rather
> >>  complete view of what is still missing.
> >>
> >>  
> >> http://www.qgis.org/wiki/Switching_from_Old_to_New_Symbology_and_Labeling
> >>
> >>  This is just a start. I will add more issues in the next couple 
> >> days.
> >>
> >>  Thanks for your help!
> >>
> >>  Andreas
> >>
> 
> -- 
>  --
>  Andreas Neumann
>  Böschacherstrasse 10A
>  8624 Grüt (Gossau ZH)
>  Switzerland
> 

-- 
Robert Rehammar
rehammar.se/robert
0738-32 88 34