https://github.com/otvam/fem_mesh_matlab

MATLAB Toolbox for Handling 2D and 3D FEM Meshes
https://github.com/otvam/fem_mesh_matlab

3d-printing ansys comsol fem finite-element-methods integration matlab mesh plot triangulation

Last synced: 10 days ago
JSON representation

MATLAB Toolbox for Handling 2D and 3D FEM Meshes

• Host: GitHub
• URL: https://github.com/otvam/fem_mesh_matlab
• Owner: otvam
• License: bsd-2-clause
• Created: 2020-01-16T18:28:55.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2024-12-18T04:45:54.000Z (4 months ago)
• Last Synced: 2025-03-28T00:41:25.651Z (27 days ago)
• Topics: 3d-printing, ansys, comsol, fem, finite-element-methods, integration, matlab, mesh, plot, triangulation
• Language: MATLAB
• Homepage:
• Size: 24.3 MB
• Stars: 44
• Watchers: 3
• Forks: 13
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

Awesome Lists containing this project

README

        
# MATLAB Toolbox for Handling 2D and 3D FEM Meshes

![license - BSD](https://img.shields.io/badge/license-BSD-green)

![language - MATLAB](https://img.shields.io/badge/language-MATLAB-blue)

![category - science](https://img.shields.io/badge/category-science-lightgrey)

![status - unmaintained](https://img.shields.io/badge/status-unmaintained-red)

This **MATLAB** toolbox offers numerous functionalities for handling **2d and 3d meshes**:

* **Parse geometry** (edge, surface, and volume) - 'extract_geom.m'

* **Plot geometry** (edge, surface, volume, normal vector, and tangential vector) - 'plot_geom.m'

* **Assign variables** to the vertices of the meshes - 'extract_data.m'

* **Plot variables** (scalar variable and vector field) - 'plot_data.m'

* **Integrate variables** on the meshes (scalar variable and vector field) - 'integrate_data.m'

* **Interpolate variables** on the meshes - 'interp_data.m'

The toolbox can be used for the following tasks:

* Processing **finite element method (FEM)** results (e.g. COMSOL, ANSYS, OpenFOAM)

* Handling **geographic information system (GIS)** data (e.g. digital elevation model)

* Handling **additive manufacturing** data (e.g. 3d printing)

## Examples

The example [run_bridge_example.m](run_bridge_example.m) handles a complex 3d structural analysis:



    



The example [run_simple_example.m](run_simple_example.m) uses a simple 2d and 3d electrostatic simulation.

This example is used to systemically test/demonstrates the different functions of the toolbox:



    

    





    

    





    

    



## Limitations

The following limitations apply to the toolbox:

* For 2d meshes and 3d surfaces, only triangular meshes are supported (no quadrilateral meshes)

* For 3d volumes, only tetrahedral meshes are supported (no hexahedral meshes)

* The integration and interpolation methods are considering linear schemes (no higher-order)

* Probably not scalable to very large meshes (tested with 3.5 million vertices and 7 million triangles)

## Compatibility

The toolbox requires the following software packages:

* Tested with MATLAB R2018b

* No toolboxes are required

* Compatibility with GNU Octave not tested but probably slightly problematic

The following software packages are used for generating the data of the examples:

* COMSOL 5.4 for generating the meshes and the solutions

* Inventor 2019 for the CAD drawings

## Author

**Thomas Guillod** - [GitHub Profile](https://github.com/otvam)

## License

This project is licensed under the **BSD License**, see [LICENSE.md](LICENSE.md).