[Qgis-developer] Expression Builder Questions

[Andreas Neumann]

 Hi Nathan,

 Thanks for the reply.

 It is not so urgent for me - and I agree that the scale issue would be 
 better solved with rule-based labeling.

 Andreas

 On Tue, 24 Jul 2012 20:46:54 +1000, Nathan Woodrow wrote:
> Hey Andreas,
>
> On Tue, Jul 24, 2012 at 5:21 PM, Andreas Neumann 
> <a.neumann at carto.net> wrote:
>> Hi all - esp. Nathan ;-),
>>
>> I have a couple of questions regarding the expression builder:
>>
>> 1. Would it be possible to add a $scale support which we could 
>> combine with
>> CASE ? This would be quite powerful to add condiditional labeling 
>> depending
>> on scale ranges.
>
> Possible yes, however I would like to see proper rule based 
> labelling,
> like the rule based rendering, implemented instead as that would
> achieve the same thing but with more power.
>
>>
>> 2. Is there a rounding function available other than toint() ? I 
>> envision
>> something like PostgreSQL round function:
>> http://www.postgresql.org/docs/9.1/interactive/functions-math.html 
>> where one
>> can specify the number of digits one wants to round to.
>
> Yeah this can be done.  I'll add it once I get some free time.
>
>>
>> 3. Is there a string formatting function available that allows to 
>> format
>> longer nunmbers for better readability? E.g. 1000000.00 would become
>> 1'000'000.00
>
> Sure this is doable as well. I'll have a look into it.
>
> Anyone else is free to have a go if they already know how, I'm pretty
> busy at the moment so no ETA on the above functions.
>
> Regards,
> Nathan

-- 
 --
 Andreas Neumann
 Böschacherstrasse 10A
 8624 Grüt (Gossau ZH)
 Switzerland