setvalue_example.py

from fipy import *
from scipy import interpolate
import numpy as np

mesh = Grid1D(dx=3, nx=10)

datx = mesh.cellCenters[0]
daty = np.sin(4*np.pi*datx/10)

valumesh = Grid1D(dx=1, nx=10)
valu = CellVariable(name="val", mesh=valumesh)
x = mesh.cellCenters[0]

liny = interpolate.interp1d(datx, daty, kind='linear')

print liny(1.5)

valu.setValue(liny(x), where=np.ones(10))

view = Viewer(vars=(valu,))
view.plot()
raw_input("Consider graph. Press return to terminate program...")