本文整理汇总了Python中dolfin.Mesh.ufl_cell方法的典型用法代码示例。如果您正苦于以下问题：Python Mesh.ufl_cell方法的具体用法？Python Mesh.ufl_cell怎么用？Python Mesh.ufl_cell使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类dolfin.Mesh的用法示例。
在下文中一共展示了Mesh.ufl_cell方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: Ball_in_tube
# 需要导入模块: from dolfin import Mesh [as 别名]
# 或者: from dolfin.Mesh import ufl_cell [as 别名]
class Ball_in_tube(object):
def __init__(self):
# https://fenicsproject.org/qa/12891/initialize-mesh-from-vertices-connectivities-at-once
points, cells, _, cell_data, _ = meshes.ball_in_tube_cyl.generate()
# 2018.1
# self.mesh = Mesh(
# dolfin.mpi_comm_world(), dolfin.cpp.mesh.CellType.Type_triangle,
# points[:, :2], cells['triangle']
# )
with TemporaryDirectory() as temp_dir:
tmp_filename = os.path.join(temp_dir, "test.xml")
meshio.write_points_cells(
tmp_filename,
points,
cells,
cell_data=cell_data,
file_format="dolfin-xml",
)
self.mesh = Mesh(tmp_filename)
V0_element = FiniteElement("CG", self.mesh.ufl_cell(), 2)
V1_element = FiniteElement("B", self.mesh.ufl_cell(), 3)
self.W = FunctionSpace(self.mesh, V0_element * V1_element)
self.P = FunctionSpace(self.mesh, "CG", 1)
# Define mesh and boundaries.
class LeftBoundary(SubDomain):
# pylint: disable=no-self-use
def inside(self, x, on_boundary):
return on_boundary and x[0] < GMSH_EPS
left_boundary = LeftBoundary()
class RightBoundary(SubDomain):
# pylint: disable=no-self-use
def inside(self, x, on_boundary):
return on_boundary and x[0] > 1.0 - GMSH_EPS
right_boundary = RightBoundary()
class LowerBoundary(SubDomain):
# pylint: disable=no-self-use
def inside(self, x, on_boundary):
return on_boundary and x[1] < GMSH_EPS
lower_boundary = LowerBoundary()
# class UpperBoundary(SubDomain):
# # pylint: disable=no-self-use
# def inside(self, x, on_boundary):
# return on_boundary and x[1] > 5.0-GMSH_EPS
class CoilBoundary(SubDomain):
# pylint: disable=no-self-use
def inside(self, x, on_boundary):
# One has to pay a little bit of attention when defining the
# coil boundary; it's easy to miss the edges closest to x[0]=0.
return (
on_boundary
and x[1] > 1.0 - GMSH_EPS
and x[1] < 2.0 + GMSH_EPS
and x[0] < 1.0 - GMSH_EPS
)
coil_boundary = CoilBoundary()
self.u_bcs = [
DirichletBC(self.W, (0.0, 0.0), right_boundary),
DirichletBC(self.W.sub(0), 0.0, left_boundary),
DirichletBC(self.W, (0.0, 0.0), lower_boundary),
DirichletBC(self.W, (0.0, 0.0), coil_boundary),
]
self.p_bcs = []
# self.p_bcs = [DirichletBC(Q, 0.0, upper_boundary)]
return