python - Scatter plot Matplotlib 2D > 3D -


i have working code scatter animation in 2d:

import matplotlib.pyplot plt import matplotlib.animation animation def _update_plot(i, fig, scat):     scat.set_offsets(([0, i], [50, i], [100, i]))     return scat, fig = plt.figure() x = [0, 50, 100] y = [0, 0, 0] ax = fig.add_subplot(111) ax.set_xlim([-50, 200]) ax.set_ylim([-50, 200]) scat = plt.scatter(x, y, c=x) scat.set_alpha(0.8) anim = animation.funcanimation(fig, _update_plot, fargs=(fig, scat), frames=100, interval=100) plt.show()

i tried convert 3d wont work..

import matplotlib.pyplot plt import matplotlib.animation animation import numpy np mpl_toolkits.mplot3d import axes3d   def _update_plot(i, fig, scat):     scat._offsets3d([0, 0, 0], [50, 0, 0], [100, 0, 0])      return scat  fig = plt.figure()  x = [0, 50, 100] y = [0, 0, 0] z = [0, 0, 0]  ax = fig.add_subplot(111, projection='3d')  scat = ax.scatter(x, y, z)  anim = animation.funcanimation(fig, _update_plot, fargs=(fig, scat), frames=100, interval=100)  plt.show()

can please give me advice on how fix this? thank you

_offsets3d attribute, not method. instead of 

scat._offsets3d([0, 0, 0], [50, 0, 0], [100, 0, 0])

you need assign tuple of (x,y,z) values it:

scat._offsets3d = ([0, 0, 0], [50, 0, 0], [100, 0, 0])

this of course produce same plot 100 frames. in order see animation like

import matplotlib.pyplot plt import matplotlib.animation animation import numpy np mpl_toolkits.mplot3d import axes3d   def _update_plot(i, fig, scat):     scat._offsets3d = ([0, i, i], [50, i, 0], [100, 0, i])     return scat  fig = plt.figure()  x = [0, 50, 100] y = [0, 0, 0] z = [0, 0, 0]  ax = fig.add_subplot(111, projection='3d')  scat = ax.scatter(x, y, z)  ax.set_xlim(0,100) ax.set_ylim(0,100) ax.set_zlim(0,100)  anim = animation.funcanimation(fig, _update_plot, fargs=(fig, scat), frames=100, interval=100)  plt.show()

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