Set zlim in mplot3D
matplotlib, matplotlib-3d, python
Solution
the correct way of calling is: `set_zlim(min_value, max_value)`, if there are problems try also `set_zlim3d`
according to the documentation, `colorbar` object has a method `set_label`, see an example here
Problem
``` mpl.rcParams['legend.fontsize'] = 10 fig1 = plt.figure() ax = fig1.gca(projection='3d') ax.plot(tab_C[0], tab_C[1], zs=0, zdir='z', label = "Projection de la trajectoire de C", color='k') ax.plot(tab_M[0], tab_M[1], zs=0, zdir='z', label = "Projection de la trajectoire de M", color='r') for i in range(0,len(tab_t)): ax.plot(tab_C[0][i:i+2], tab_C[1][i:i+2], tab_C[2][i:i+2], color=plt.cm.rainbow(255*i/len(tab_t))) ax.plot(tab_M[0][i:i+2], tab_M[1][i:i+2], tab_M[2][i:i+2], color=plt.cm.rainbow(255*i/len(tab_t))) ax.legend() ax.set_xlabel('I') ax.set_ylabel('J') ax.set_zlabel('K') m = cm.ScalarMappable(cmap=cm.rainbow) m.set_array(tab_t) plt.colorbar(m) ``` I've got this plot with my code My problems are - I want to set label for the color bar but ScalarMappale don't have the methode set_label() - I want to set zmin=0 to see clearly the projection on the plan (0xy) but it seems that zmin here is 0.05 and when I do ax.set_zlim(bottom=0) It returns ``` Traceback (most recent call last): File "code.py", line 117, in <module> ax.set_zlim(bottom=0) File "/usr/lib/pymodules/python2.7/mpl_toolkits/mplot3d/axes3d.py", line 515, in set_zlim3d lims = self._determine_lims(*args, **kwargs) File "/usr/lib/pymodules/python2.7/mpl_toolkits/mplot3d/axes3d.py", line 476, in _determine_lims xmin -= 0.05 TypeError: unsupported operand type(s) for -=: 'NoneType' and 'float' ``` Is there any way to solve my problems?