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by qingfeng.xia
Thu Nov 05, 2020 9:10 pm
Forum: Help on using FreeCAD
Topic: [BUG?] Mesh workbench can not load OFF file format
Replies: 7
Views: 381

Re: [BUG?] Mesh workbench can not load OFF file format

thank you all, now I realized the problem (FC does support all OFF file format like comment, etc ),

I have FC 0.18.4 , if I generate mesh from a part, then I can export OFF format, and read back to FC again.

Thank you Wmayer to fix it. I will test it next week from freecad.daily.
by qingfeng.xia
Sun Nov 01, 2020 11:51 am
Forum: FEM
Topic: "Parallel-preprocessor" has been open source as a starting point of CAD-CAE workflow automation
Replies: 0
Views: 190

"Parallel-preprocessor" has been open source as a starting point of CAD-CAE workflow automation

Dear FCers, My first project funded by employer is not open sourced, https://github.com/ukaea/parallel-preprocessor As the name suggests, it is a geometry preprocessinng tool to prepare CAD files for CAE simulation. It is derived from my project, needing an tool to do geometry imprinting quicker, bu...
by qingfeng.xia
Sun Nov 01, 2020 11:39 am
Forum: Help on using FreeCAD
Topic: [BUG?] Mesh workbench can not load OFF file format
Replies: 7
Views: 381

[BUG?] Mesh workbench can not load OFF file format

Test for FC 0.18 and FC 0.19 daily Test data can be found https://people.sc.fsu.edu/~jburkardt/data/off/off.html I try to open the file by "file->open" or "meshes -> import mesh..." menu in Mesh workbench, neither works for OFF format, but STL file format is working >>> import Mesh >>> Mesh.open(u"s...
by qingfeng.xia
Sun Nov 01, 2020 10:50 am
Forum: CfdOF / CFD
Topic: CFD Workbench - instalation problem
Replies: 7
Views: 1240

Re: CFD Workbench - instalation problem

FreeCAD 0.17 is not supported any longer for Cfd module. I only have time to maintain python3 version in the future that is at least freecad 0.18 +

Sorry for this inconvenience.


Recently PyFoam on windows 10 has broken, I have submit bug and fix, not sure it has been updated to PyPI
by qingfeng.xia
Wed Jun 17, 2020 9:04 am
Forum: Install / Compile
Topic: FreeCAD 0.18.4 fails to build with vtk 9.0
Replies: 32
Views: 2532

Re: FreeCAD 0.18.4 fails to build with vtk 9.0

After upgrade to Ubuntu 20.04, vtk-dev is broken ,so I can not compile freecad-daily any more, so I build my vtk9. When I built freecad upstream master latest 0.19, I run into problem with SalomeMesh, I know there are already some in-progress work to upgrade salome mesh, I hope once salomemesh updat...
by qingfeng.xia
Tue May 26, 2020 11:31 am
Forum: FEM
Topic: feature: general initial value and body source, to be tested
Replies: 54
Views: 3554

Re: feature: general initial value and body source, to be tested

I topped up 2 commits on documentation, one commit renaming, see PR to your branch. https://github.com/berndhahnebach/FreeCAD_bhb/pull/78 There is one file, with your in source notes, femobjects/ConstraintGenericDefaults.py I leave it to you to further clean it before PR to master. I run out my time...
by qingfeng.xia
Mon May 25, 2020 6:57 pm
Forum: FEM
Topic: feature: general initial value and body source, to be tested
Replies: 54
Views: 3554

Re: feature: general initial value and body source, to be tested

I can add more document, in that case, doc will be much long than the code, what is why I think it deserves a page. I will do another top up tomorrow thank you
by qingfeng.xia
Sun May 24, 2020 1:32 pm
Forum: FEM
Topic: feature: general initial value and body source, to be tested
Replies: 54
Views: 3554

Re: feature: general initial value and body source, to be tested

If you think necessary, A in-source documentation should be added to the class ConstraintGeneric to outline how to use this class, or add those doc into freecad wiki directly? I prefere in source. But more important would be a real use of one of the constraints. ATM there are two new constraints wh...
by qingfeng.xia
Sun May 24, 2020 12:35 pm
Forum: FEM
Topic: feature: general initial value and body source, to be tested
Replies: 54
Views: 3554

Re: feature: general initial value and body source, to be tested

Rebase after stop for a while is kind of disaster to me :). I may add a bit in-source documentation then I hope to PR. BodyAccelation is a quite useful constraint. it can let FEA simulate linear acceleration, centrifuglal. It modelled after Ansys Mechanical https://studentcommunity.ansys.com/thread/...
by qingfeng.xia
Sun May 24, 2020 11:57 am
Forum: FEM
Topic: Feature: add extra FemMesh mesh file export format, potentially usable by other solvers
Replies: 30
Views: 3448

Re: Feature: add extra FemMesh mesh file export format, potentially usable by other solvers

I will have a look, it may take time to restart on that branch, as fem_gmsh have evolved a lot since then.

For fenics_ mesh, it was too outdated, should be removed.

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