from numpy import ma
from matplotlib import colors, ticker, cm
from matplotlib.mlab import bivariate_normal
from matplotlib.colors import ListedColormap
if __name__ == "__main__":
print ('This is main of module "test2d.py"')
######## Constant defined here ########
pi = 3.1415926535897932384626
q0 = 1.602176565e-19 # C
m0 = 9.10938291e-31 # kg
v0 = 2.99792458e8 # m/s^2
kb = 1.3806488e-23 # J/K
mu0 = 4.0e-7*pi # N/A^2
epsilon0 = 8.8541878176203899e-12 # F/m
h_planck = 6.62606957e-34 # J s
wavelength= 1.0e-6
frequency = v0*2*pi/wavelength
exunit = m0*v0*frequency/q0
bxunit = m0*frequency/q0
denunit = frequency**2*epsilon0*m0/q0**2
print 'electric field unit: '+str(exunit)
print 'magnetic field unit: '+str(bxunit)
print 'density unit nc: '+str(denunit)
font = {'family' : 'helvetica',
'color' : 'black',
'weight' : 'normal',
'size' : 20,
data = sdf.read("./"+str(n).zfill(4)+".sdf",dict=True)
header=data['Header']
time=header['time']
x = data['Grid/Grid_mid'].data[0]/1.0e-6
y = data['Grid/Grid_mid'].data[1]/1.0e-6
y = y[600:1799]
X, Y = np.meshgrid(x, y)
It gives me following error:
Traceback (most recent call last):
File "epochvis.py", line 45, in <module>
data = sdf.read("./"+str(n).zfill(4)+".sdf",dict=True)
AttributeError: 'module' object has no attribute 'read'
有什么想法吗？请先谢谢你。
1 个回答
0 人赞同
sdf没有一个读取功能。
try typing the following in your python shell
import sdf
help(sdf)
you will see
FUNCTIONS
load(filename, objectname='/', unit=None, scale_units=None)
Load a dataset or group from an SDF file
save(filename, group)
Save an SDF group to a file
