FreeCAD Logo FreeCAD 1.0
  • English Afrikaans Arabic Belarusian Catalan Czech German Greek Spanish Spanish Basque Finnish Filipino French Galician Croatian Hungarian Indonesian Italian Japanese Kabyle Korean Lithuanian Dutch Norwegian Bokmal Polish Portuguese Portuguese Romanian Russian Slovak Slovenian Serbian Swedish Turkish Ukrainian Valencian Vietnamese Chinese Chinese
  • Features
  • Download
  • Blog
  • Documentation
    Documentation index Getting started Users documentation The FreeCAD manual Workbenches documentation Python coding documentation C++ coding documentation Tutorials Frequently asked questions Privacy policy About FreeCAD
  • Contribute
    How to help Sponsor Report a bug Make a pull request Jobs and funding Contribution guidelines Developers handbook Translations
  • Community
    Code of conduct Forum The FPA GitHub GitLab Codeberg Mastodon Matrix IRC IRC via Webchat Gitter Discord Reddit Twitter Facebook LinkedIn Calendar
  • ♥ Donate

Donate

$
SEPA Information
Please set up your SEPA bank transfer to:
Beneficiary: The FreeCAD project association
IBAN: BE04 0019 2896 4531
BIC/SWIFT: GEBABEBBXXX
Bank agency: BNP Paribas Fortis
Address: Rue de la Station 64, 1360 Perwez, Belgium

While Stripe doesn't support monthly donations, you can still become a sponsor! Simply make a one-time donation equivalent to 12 months of support, and you'll gain access to the corresponding sponsoring tier. It's an easy and flexible way to contribute.

If you are not sure or not able to commit to a regular donation, but still want to help the project, you can do a one-time donation, of any amount.

Choose freely the amount you wish to donate one time only.

You can support FreeCAD by sponsoring it as an individual or organization through various platforms. Sponsorship provides a steady income for developers, allowing the FPA to plan ahead and enabling greater investment in FreeCAD. To encourage sponsorship, we offer different tiers, and unless you choose to remain anonymous, your name or company logo will be featured on our website accordingly.

from 1 USD / 1 EUR per month. You will not have your name displayed here, but you will have helped the project a lot anyway. Together, normal sponsors maintain the project on its feet as much as the bigger sponsors.

from 25 USD / 25 EUR per month. Your name or company name is displayed on this page.

from 100 USD / 100 EUR per month. Your name or company name is displayed on this page, with a link to your website, and a one-line description text.

from 200 USD / 200 EUR per month. Your name or company name and logo displayed on this page, with a link to your website and a custom description text. Companies that have helped FreeCAD early on also appear under Gold sponsors.

Instead of donating each month, you might find it more comfortable to make a one-time donation that, when divided by twelve, would give you right to enter a sponsoring tier. Don't hesitate to do so!

Choose freely the amount you wish to donate each month.

Please inform your forum name or twitter handle as a notein your transfer, or reach to us, so we can give you proper credits!

Onboarding FEM Devs

Description

This page will orient new developers on how to setup their development environments in order to hack on the FEM workbench.

Setting up a Dev Environment

TBD

Prerequisites

  • Netgen

Recommended

  • Paraview

Compiling via Source

TBD

Compiling via Docker

TBD

Source Code Management

Keeping FreeCAD up-to-date is documented in Source code management page. Along with useful git tips.

FEM Code Infrastructure

The FEM code lives in src/Mod/Fem

  • App/console-mode application, defines basic structures and base classes for document objects, that are used by modules to build their own.

  • Gui/GUI-mode application, defines the 3D view, tools/functions used by workbench to interact with UI and 3D view, defines base classes for view providers.

  • femcommands/

  • fem.dox

  • femexamples/

  • femguiobjects/

  • femguiutils/

  • feminout/

  • femmesh/

  • femobjects/

  • femresult/

  • femsolver/

  • femtaskpanels/

  • femtest/

  • femtools/

  • femviewprovider/

  • InitGui.py

  • Init.py

  • ObjectsFem.py

  • TestFemApp.py

  • TestFemGui.py

Coding Conventions

Please see coding_conventions.md file on the FreeCAD repository.

Adding New FEM Solvers

A new FEM solver requires the following:

  • Mesh exporter
  • Results importer
  • Solver object (needs changes in solver settings, unit tests, ObjectsFem modules as well)
  • Task and writer module (here is where the main solver input writing happens)
  • GUI tool to create a solver
  • GUI preference tab to set the solver binary path
  • A solver input writing unit test. Best to take the ccx cantilever. This is available for all mesh element types
  • Having one or two beers

See also:

  • Extend FEM Module
  • The implementation efforts of the oofem solver
  • The implementation efforts of the [https://github.com/FreeCAD/FreeCAD/compare/a03eb6b9625ba...dfc01ec949525 myStran] solver

Writing Unit Tests

TBD

Informative

  • Wrapping a Cplusplus class in Python
  • Add FEM Equation Tutorial
  • Add Button to FEM Toolbar Tutorial

Related

  • FEM bugs in the FreeCAD bugtracker
  • Open FEM FIXME comments in the FreeCAD source code
  • Open FEM TODO comments in the FreeCAD source code
  • Original thread discussion for this wiki page
  • FEM Workbench

⏵ documentation index > FEM > Developer Documentation > Onboarding FEM Devs

This page is retrieved from https://github.com/FreeCAD/FreeCAD-documentation/blob/main/wiki/Onboarding_FEM_Devs.md

Get in touch!
Forum GitHub Mastodon Matrix IRC Gitter.im Discord Reddit Twitter Facebook LinkedIn

© The FreeCAD Team. Homepage image credits (top to bottom): ppemawm, r-frank, epileftric, regis, rider_mortagnais, bejant.

This project is supported by: , KiCad Services Corp. and other sponsors

GitHubImprove this page on GitHub