 |
An Industrially Robust Quadrilateral Mesher for CAD Models
We introduce a new quadrilateral meshing algorithm integrated in the open-source mesh
generator Gmsh. The method targets industrially robust meshing of complex CAD models with many
trimmed patches. It combines : (i) a pattern-based strategy producing high-quality meshes when patch
topology matches predefined templates; (ii) a global quantization procedure enforcing compatible sub-
divisions across adjacent patches ; and (iii) an improved packing of parallelograms for general surfaces.
A Winslow-type smoother on CAD geometries further enhances element quality, yielding accurate and
simulation- ready quad meshes.
