Problems installing DesignSPHysics in FreeCAD

[dirasuma]

Hello

I am trying to install DesignSPHysics and have done both the installation manually according to the directions and from the addon manager in FreeCAD 0.21.1. I still couldn't do it and encountered the following error code: Does anyone have a similar problem or solution?

[aepoc]

I’m currently running into the same issue. I saw the new release so I updated free cad and then tried updating dualsphysics and am getting the same or similar errors.

I should also note that installing the macro through free cad did not work at all as free cad has been hit and miss with regards to accessing GitHub…. Sometimes the readme would load and it would start downloading and others I would get a 404 connection error.

[imestevez]

This issue should be fixed and the release has been updated. Please try to download it again.

[dirasuma]

This issue should be fixed and the release has been updated. Please try to download it again.

Now it can be used. Thank you so much.

[aepoc]

I am still having trouble installing via the automatic route... I'm still getting the 404 connection error with github. Should I re-install freecad and try again or jump straight to the manual install?

[imestevez]

Sorry, I missed your comment aepoc. The issue was fixed in the latest commit. Please try again to download it.

[aepoc]

I spent all day trying to install the new version in FreCad 21 - both the automatic route and manually. Do you think this could be a work IT access thing? I was able to automatically install the previous version in FreeCad v20. I'm worried that if I update on my personal computer then I will no longer have access to a GUI for DualSPHysics...

When I download, unzip, rename and place files and folders in their correct locations(manual instal), I still get an error upon opening the macro:

"[DEBUG] [DesignSPHysics] main.py:151 -> Subscribing selection change monitor handler to freecad object tree item changed."

Then many "main.py:94 Invalid document environment found. Disabling case-related tools."

I'm hoping somebody could steer me in the correct direction... perhaps I'm doing something wrong with the manual instal?

Thanks!

[imestevez]

Do not worry about that messages, they are debug and log information showed on the Report view but not errors of the code. After you load the macro, check on the rigth panel if FreeCAD is loading the DesignSPHysics 0.7.0 (15-09-2023) version.

[aepoc]

The correct macro is being loaded (DSPH0.7.0 (15-09-2023)). I set up a case that I've run in a previous version and am unable to get gencase to output anything:

Traceback (most recent call last): 09:42:32 File "C:\Users***\AppData\Roaming\FreeCAD\Mod\DesignSPHysics\mod\widgets\dock\dock_pre_processing_widget.py", line 269, in on_execute_gencase total_particles_text = output[output.index("Total particles: "):output.index(" (bound=")] 09:42:32 ValueError: substring not found

[imestevez]

After loading the case from a previous version, save it again (better to a different path) and make sure there are no spaces or special characters in the path

[aepoc]

i started this one from scratch. I just based it off one that worked for me previously. I should note that when examining the .VTK files that gencase did produce, its clear it didn't even get to the fillbox command as there is no fluid to be seen (same for plungers un wavemaker).

Thanks again for your support!!

[imestevez]

Could you share the path where you are saving and executing the case? This error appears when spaces, accents, or special characters are used in the path. There is a similar thread on this topic #148

[aepoc]

ok I've been able to get gencase to complete... that one was my mistake but I still cannot get a simulation to run.

And Yes, I've run into the space thing before. The path is: D:\SPH\DesignSPHysics\X05\Roller\TTRoller\TTRoller_out

Should I be loading the macro through the mod folder or through the copy in the macro folder? I've tried both

[aepoc]

well, just for the F*** of it, I updated my GPU drivers... no luck. I did however have luck uninstalling and then reinstalling via the automatic route and everything seemed to work. Now I just get the "Update GPU driver" error when I simulate

[aepoc]

So I have finally been able to complete a simple simulation. looks like the normals on the .stl I was importing were incorrect. This didn't effect the study in the previous version but perhaps there's something wrong with my stl(s). Anyway thanks for the update and the help to get it going!

[aepoc]

I should note that I've been able to run several 2d simulations with boxes made in designsphysics. I have not yet tried to import geometry as I seem to have trouble with generating normals for mDBC... Anyway; I just wanted the community to know that my particular issue seems to be coming from a bad stl. Thanks for the support!

[imestevez]

Please share your questions related to the use of the SPH solver or their functionalities in the DualSPHysics forum to be discussed with the developers and the community.