FreeCAD scripting -- create a mesh using GMSH from within FreeCAD

freecad-gmsh.py

# Use GMSH from within FreeCAD
# useful for performing any
# kind of scripting with the
# FEM module

# Require : FreeCAD > 0.17
#         : GMSH

# Required imports
import FreeCAD
import Part
import ObjectsFem
from femmesh import gmshtools # <FreeCAD_src>/Mod/Fem/femmesh/gmshtools.py

# create the document
doc = App.newDocument()

# add a box to the document
doc.addObject("Part::Feature","Shape")
doc.Shape.Shape = Part.makeBox(1,1,1)

# setup
ObjectsFem.makeMeshGmsh(doc, "Mesh")
doc.Mesh.Part = doc.Shape

# create the mesh; using gmshtools lets
# you do all of this without having to
# open FreeCAD
g = gmshtools.GmshTools(doc.Mesh)
g.create_mesh()