matplotlib-users Mailing List for matplotlib

Looks like you found a bug.  It works properly with ax.plot(), but not for
scatter().  Strange...  As for contour(), it doesn't get a legend entry in
the 2D case, so I wouldn't expect it to get a legend entry in the 3D case
either.

Could you file a bug report on github for this, please?

Cheers!
Ben Root

Hi list,

i am plotting some data using scatter and contour method while
using projection 3d. Now i want to label these two plots, but i
get the following warning:

    "
    UserWarning: No labeled objects found. Use label='...'
    kwarg on individual plots. warnings.warn("No labeled
    objects found. "
    "

Can someone help me get the labelling working, or isn't that
possible while using 3d plots?

Thank you for your help,
Tom


The code i am using is this one:

# Start code
import numpy as np
import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d import Axes3D

x = np.arange(1,10,1)
y = np.arange(10,20,1)

xx,yy = np.meshgrid(x,y)
z = .4*xx + 12*yy + .2*xx*yy + .32*xx**2*yy + \
        .234*xx*yy**2 + .34*xx**2*yy**2

fig = plt.figure()
ax = fig.add_subplot(111, projection='3d')
ax.scatter(xx,yy,z, label='1st label')
ax.contour(xx,yy,z, label='2nd label')

ax.legend()
ax.set_xlabel('TE')
ax.set_ylabel('TC')
ax.set_zlabel('Q')

plt.show()
# End code