File size: 1,517 Bytes
d07e4ac ebc16f3 d07e4ac ebc16f3 d07e4ac ebc16f3 d07e4ac ebc16f3 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 | raw_fiber_file = "../ibamr/fibers.txt.gz"
raw_sheet_file = ""
raw_mesh_file = "../ibamr/mesh.xda.gz"
output_path = "../mesh/"
temp_path = "../trash/"
from fenics import *
mesh_file = XDMFFile(output_path+"mesh.xdmf")
mesh = Mesh()
mesh_file.read(mesh)
mesh_file.close()
fibers = []
import gzip
file_handler = gzip.open(raw_fiber_file, "rt")
while True:
line = file_handler.readline()
if line == '':
break
else :
line = line.split("\n")[0].split("\t")
fiber = [float(line[1]), float(line[2]), float(line[3])]
fibers.append(fiber)
file_handler.close()
f0 = MeshFunction("double", mesh, 3, 0.0)
f1 = MeshFunction("double", mesh, 3, 0.0)
f2 = MeshFunction("double", mesh, 3, 0.0)
for i in range(f1.size()):
f0[i] = fibers[i][0]
f1[i] = fibers[i][1]
f2[i] = fibers[i][2]
File(output_path + "fibers_0.xml") << f0
File(output_path + "fibers_1.xml") << f1
File(output_path + "fibers_2.xml") << f2
class F1(UserExpression):
def __init__(self, mesh, f0, f1, f2, *arg, **kwargs):
super().__init__(*arg, **kwargs)
self.mesh = mesh
self.f0 = f0
self.f1 = f1
self.f2 = f2
def eval_cell(self, values, x, cell):
values[0] = self.f0[cell.index]
values[1] = self.f1[cell.index]
values[2] = self.f2[cell.index]
def value_shape(self):
return (3,)
V = VectorFunctionSpace(mesh, 'CG', 1)
e1 = F1(mesh, f0, f1, f2, degree=2)
u1 = interpolate(e1, V)
File(temp_path + "fibers.pvd") << u1 |