MATLAB Code for Interpolating Triangulated Data

The MATLAB code offers several functions for creating 2D triangulations and interpolating data:

• creating triangulation from scattered data, using alpha shapes
  • handle ill-conditioned triangles
  • handle multiple (disjoint) domains
  • handle holes in the domains
• removing ill-conditioned triangles
  • skinny triangles on the exterior boundary
  • triangles specified with a list of indices
• computing the area and the angle of the triangles
• linear interpolation on a specified triangulation
• plotting triangulation geometry and data

Examples

Angles and Ill-conditioned Triangles

Triangulated and Interpolated Data

Compatibility

• Tested with MATLAB R2021a.
• No toolboxes are required.
• Compatibility with GNU Octave not tested but probably easy to achieve.

Author

Thomas Guillod - GitHub Profile

License

This project is licensed under the BSD License, see LICENSE.md.