gmsh

3D finite element grid generator with built-in CAD engine

brewmacoslinux

Try with needOr install directly

About

3D finite element grid generator with CAD engine

gmsh

Generate mesh from a STEP CAD file$ gmsh model.step -2 -o mesh.msh

Launch interactive GUI for mesh creation and visualization$ gmsh

Convert mesh format from MSH to VTK$ gmsh input.msh -format vtk -o output.vtk