[Lizmap] Dataviz - Limitations?
immo at blecher.co.za
Wed Mar 17 08:41:00 PDT 2021
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.
*Immo F. Blecher**
Street: */50 Lynedoch Eco Village, Lynedoch, Stellenbosch, 7603, South
//*Postal:*//PO Box 74, Lynedoch, 7603, South Africa
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*Email:*_immo at blecher.co.za_ <mailto:immo at blecher.co.za> |
_immob19 at gmail.com_ <mailto:immob19 at gmail.com>
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