用于处理2D和3D FEM网格的MATLAB工具箱（高分毕设）.zip

# MATLAB Toolbox for Handling 2D and 3D FEM Meshes     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: <p float="middle"> <img src="readme_img/bridge.png" width="600"> </p> 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: <p float="middle"> <img src="readme_img/simple_1.png" width="400"> <img src="readme_img/simple_2.png" width="400"> </p> <p float="middle"> <img src="readme_img/simple_3.png" width="400"> <img src="readme_img/simple_4.png" width="400"> </p> <p float="middle"> <img src="readme_img/simple_5.png" width="400"> <img src="readme_img/simple_6.png" width="400"> </p> ## 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).