Hi again,
It seems like LizMap has some support for temporal controller:
https://docs.lizmap.com/next/en/publish/lizmap_plugin/time_manager.html
But as I said - this works through sending vector data and client side
rendering - so not the full capabilities of the QGIS styling engine.
Greetings,
Andreas
On 2024-06-06 06:41, Andreas Neumann via QGIS-User wrote:
Hi BJ,
No - I don't think this is possible. But I am not fully up-to-date
about QWC2, as I am not an active user. You might want to ask at the
separate QWC2 user mailing list:
https://lists.osgeo.org/mailman/listinfo/qgis-qwc2
Personally, I have doubts about the feasibility of integrating the
temporal controller with QGIS server and any web client that relies on
raster images. QGIS server is sending raster images of map extents.
That approach wouldn't scale very well, due to the additional lag
between client and server. To get an acceptable performance, it would
mean that one would have to exchange vector features (geometry and
attributes) and render client-side - and then you loose the QGIS
symbology features ...
It might be more feasible to use QGIS wasm (web assembly) for this
purpose. But it is still a young project. In QGIS wasm, the QGIS
rendering engine runs inside the browser. It is also generating raster
images, but it would hold the original GIS data in the client and also
render in the client, eliminating the network lag between server and
client. There you would maintain the QGIS rendering and labeling
capabilities.
If you have a serious interest in that feature, one could further
discuss if an implementation of the temporal controller with QGIS wasm
would be an option. But it would require an investment in the qgis-js
API/bindings and a client side implementation of the temporal
controller with some web framework.
Best regards,
Andreas
On Wed, 5 Jun 2024 at 23:58, BJ Raval via QGIS-User
<qgis-user@lists.osgeo.org> wrote:
Hi Andreas,
I am an occasional desktop QGIS user but this is my first time asking
a question for help.
I would like to use the Temporal Controller on a web page served by
QWC2 web client. Is it possible to use Temporal Controller by a user
on the client side on the web browser?
A detailed answer of "how-to" would be much appreciated if this is
possible.
Sincere thanks!
BJ _______________________________________________
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