Hi,
I'm trying to animate an imshow() plot. Here is my example:
------
import numpy as np
from numpy import pi
from mayavi import mlab
Nx = 200
Ny = 200
N = 100
u0 = np.zeros((Nx,Ny))
nx = np.arange(Nx)
ny = np.arange(Ny)
nx = nx[:,None]
amp = 2.0
c = 10.0
Ts = 1/30.0
v = np.array([2,1])
@mlab.animate(ui=False,delay=100)
def main_loop():
for n in range(0,N):
u0 = amp*np.sin(2*pi*(nx/Nx*v[0] + ny/Ny*v[1]) - c*n*Ts)
#plotting
if n==0:
mlab.clf()
fig = mlab.gcf()
X,Y = np.mgrid[0:Nx,0:Ny]
#h1 = mlab.surf(X,Y,u0,vmax=amp,vmin=-amp)
h1 = mlab.imshow(u0,vmax=amp,vmin=-amp)
mlab.axes(xlabel='x', ylabel='y', zlabel='z', nb_labels=5,
color=(0., 0., 0.))
mlab.outline()
mlab.colorbar()
mlab.draw()
else:
h1.mlab_source.scalars = u0
mlab.draw()
print('n=%d' % n)
yield
a = main_loop()
mlab.show()
------
I'm not sure that 'h1.mlab_source.scalars = u0' is the correct way to update
the imshow plot, but it doesn't seem to throw an error, yet the plot
doesn't update.
If you comment out the line with 'imshow', and uncomment the line with
'surf', you'll get an idea of what it should look like animated.
I couldn't find anything in the documentation regarding this. The only thing I
found was this unsolved SO post:
https://stackoverflow.com/questions/40168623/how-to-animate-imshow-by-maya
Any help would be appreciated! Appreciate all the hard work put into this!
Best,
--
Brian
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