Change Color Limits With Quiver In Matplotlib?

How should the syntaxis be for changing the limits of the color range when plotting with quivers in matplotlib? I have the following code: PyPlot.ion() xlim(1, 64) ylim(1, 64) flec

Solution 1:

Okey, I got it, this is the right way to do it with matplotlib 1.3.1

figure()
xlim(1,64)
ylim(1,64)
flechitas=quiver(x,y,EFx,EFy, sqrt((EFx.*EFx+EFy.*EFy)), units="x", 
pivot="middle", cmap="Blues", width=0.4);
cb=colorbar(flechitas, clim(0,120));

So, clim(min, max) must be an argument to colorbar(...), it seems.

Solution 2:

Use the matplotlib function clim():

plt.clim(0,120)

Extended example:

import matplotlib.pyplot as plt
import numpy as np

X, Y = np.meshgrid(np.arange(0, 2 * np.pi, .2), np.arange(0, 2 * np.pi, .2))
U = np.cos(X)
V = np.sin(Y)
M = np.hypot(U, V)

plt.figure(figsize=(17,5))
plt.subplot(121)
Q = plt.quiver(X, Y, U, V, M)
plt.colorbar()
plt.subplot(122)
Q = plt.quiver(X, Y, U, V, M)
plt.colorbar()
plt.clim(0,1)