def test_Box2DQuad(self):
"""
Test a quadrilateral mesh of a simple box.
"""
box = BRepPrimAPI_MakeBox(10, 10, 10).Solid()
gen = SMESH_Gen()
mesh = gen.CreateMesh(0, True)
hyp = NETGENPlugin_SimpleHypothesis_2D(0, 0, gen)
hyp.SetAllowQuadrangles(True)
hyp.SetLocalLength(1.0)
NETGENPlugin_NETGEN_2D(1, 0, gen)
mesh.ShapeToMesh(box)
mesh.AddHypothesis(box, 0)
mesh.AddHypothesis(box, 1)
success = gen.Compute(mesh, box)
self.assertTrue(success)
self.assertEqual(mesh.NbTriangles(), 0)
self.assertEqual(mesh.NbQuadrangles(), 600)
self.assertEqual(mesh.NbNodes(), 602)
fn = './models/wingbox.brep'
shape = ExchangeBasic.read_brep(fn)
v = ViewerWx()
v.add(shape)
v.start()
gen = SMESH_Gen()
mesh = gen.CreateMesh(0, True)
assert isinstance(mesh, SMESH_Mesh)
hyp2d = NETGENPlugin_SimpleHypothesis_2D(0, 0, gen)
hyp2d.SetAllowQuadrangles(True)
hyp2d.SetLocalLength(4.0)
alg2d = NETGENPlugin_NETGEN_2D(1, 0, gen)
mesh.ShapeToMesh(shape)
mesh.AddHypothesis(shape, 0)
mesh.AddHypothesis(shape, 1)
print('Computing mesh...')
done = gen.Compute(mesh, mesh.GetShapeToMesh())
assert done
print('done.')
v = ViewerWx()
v.add(mesh)
v.start()
def __init__(self, gen):
hyp = NETGENPlugin_NETGEN_2D(gen.new_id(), -1, gen.object)
super(NetgenAlgo2D, self).__init__(hyp)