open TELEMAC-MASCARET The mathematically superior suite of solvers

While pre-processing and the calculation itself is quite doable with the existing tools, there is still a lack of a proper postprocessing tool.

For engineers not working in research environments, it would be great to be able to do post processing in GIS - e.g. QGIS.

But Crayfish / the MDAL does not support Selafin files anymore in the current version. Artelia seems to have no plans to upgrade PostTelemac (which was quite a capable post plugin) to make it work with the current QGIS versions - effectively closing down the plugin (unless people keep working with outdated QGIS versions). So when the QGIS LTR switches to the 3.x-Versions, there will be no easy way anymore to do the postprocessing in GIS (well, you can always export raster files from BK, but is that a good workflow?).

And doing the output analysis and mapping with BlueKenue is just not very good, as it lacks the capabilities for mapping.

Are there any plans to implement some QGIS plugin or include a file converter from Serafin to some more widespread output format? Or is there already some way to get the files into QGIS which I didn't find?

Hi
It's in our plan to upgrade PostTelemac with the MDAL library but it needs time and money...
Are you ready to fund a part of this job?

We could probably contribute to that, just have to discuss this with the higher-ups. How much funding would be required for this?

No precise idea yet as we didn't investigate.
First task, add selafin reader capabilities to MDAL, probably not too much time required for that
Second task, adapt PostTelemac to MDAL format to achieve same capabilities (computation of fluxes, extraction, ...). This could be a little more complex.

To give a very rough estimation, I would say between 5 and 10 k€

Kind regards

Adding the file reader in MDAL is almost done and should appear in the next versions of QGIS:
github.com/lutraconsulting/MDAL/pull/120

But there are several enhancements we did not implement, as it was in our own time.

We'd like to add spatial indexing and lazy loading for the format. There is also a possibility to add 3D canvas support for MDAL files.

If you want to add these and other features, do not hesitate to contact us.

Another key feature missing in MDAL is support for projection on the fly:
issues.qgis.org/issues/21008

So, any future plugin (including PostTelemac) based on MDAL will be affected by this bug.