[Lizmap] Dataviz - Limitations?

Nicolas Boisteault nboisteault at 3liz.com
Thu Mar 18 01:46:16 PDT 2021


Hi,

Can you try with QGIS Desktop and Server 3.10 ?

Le 17/03/2021 à 16:41, Immo Blecher a écrit :
>
> Hi All,
>
> My Setup:
>
>  1. Lizmap 3.4.0
>  2. QGIS Server 3.16
>  3. All on Linux Server (not sure which one, offsite)
>  4. All spatial and table data in PosgreSQL
>
> I had a Dataviz set up with a bar chart for monthly rainfall [mm] to 
> display in the popup by clicking on a rainfall station on the map. 
> First I only had 3 sites which worked fine. Then I added another four 
> sites and now the chart header briefly flashes and disappears again.
>
> The rainfall station table is the master and the rainfall readings are 
> in a detail table (1-N) with 4 fields...ID, site_id, date, reading and 
> the relation set up with the Rainfall station table's site_id. The 
> readings are 1 per month (monthly rainfall), so in Dataviz the X is 
> the date field and the Y is the reading field. There are about 3700 
> readings (about 400 to 700 per site). Is there any limitation on that? 
> Why did it work with 3 sites and not with the seven? But now even when 
> reverting to the 3 sites it does not work any more. Is that a cache 
> problem? The detail table with the rainfall readings is ticked in the 
> WFS QGIS Server setup and the whole project is valid.
>
> It seems to be a problem with the relation (maybe???), but in QGIS 
> info tool the relations show fine (the detail data is there).
>
> This is quite frustrating.
>
> Regards
>
> -- 
>
> *Immo F. Blecher**
> Street: */50 Lynedoch Eco Village, Lynedoch, Stellenbosch, 7603, South 
> Africa
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> *Email:*_immo at blecher.co.za_ <mailto:immo at blecher.co.za> | 
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