dmsh

Shapes are defined using simple classes like Circle and Rectangle, and boolean operations use operators (+, -, &) for union, difference, and intersection, making the code readable and easy to write, as shown in the examples.

As a pure Python package, it can be installed via pip without external dependencies, ensuring compatibility across different operating systems, highlighted in the installation section.

When paired with optimesh, dmsh produces meshes with excellent element quality, suitable for finite element analysis where mesh quality is critical, as stated in the README.

Supports variable edge length functions based on distance to geometric features, allowing finer meshing near boundaries for improved accuracy, demonstrated in the local refinement examples.

Includes methods like geo.show() to visualize level-set functions for geometry validation, helping debug incorrectly defined domains, as mentioned in the debugging section.