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POLabel 3Dplot points + update
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copied!<p>I'm quite new with python and matplotlib and this website helped me a lot. but I couldn't find a complete answer about this subject.</p> <p>I would like to annotate the point of a 3d plot using matplotlib, so after some research I found this peace of code : <a href="https://stackoverflow.com/questions/10374930/matplotlib-annotating-a-3d-scatter-plot">Matplotlib: Annotating a 3D scatter plot</a></p> <pre><code> import pylab from mpl_toolkits.mplot3d import Axes3D from mpl_toolkits.mplot3d import proj3d fig = pylab.figure() ax = fig.add_subplot(111, projection = '3d') x = y = z = [1, 2, 3] sc = ax.scatter(x,y,z) # now try to get the display coordinates of the first point x2, y2, _ = proj3d.proj_transform(1,1,1, ax.get_proj()) label = pylab.annotate( "this", xy = (x2, y2), xytext = (-20, 20), textcoords = 'offset points', ha = 'right', va = 'bottom', bbox = dict(boxstyle = 'round,pad=0.5', fc = 'yellow', alpha = 0.5), arrowprops = dict(arrowstyle = '->', connectionstyle = 'arc3,rad=0')) def update_position(e): x2, y2, _ = proj3d.proj_transform(1,1,1, ax.get_proj()) label.xy = x2,y2 label.update_positions(fig.canvas.renderer) fig.canvas.draw() fig.canvas.mpl_connect('button_release_event', update_position) pylab.show() </code></pre> <p>but the thing is, I manage to update only the last label with this code, I tried to do some loop in the update_position(e) function. But I'm certainly missing something. So far I used the Axes3D.text(x, y, z, s, zdir) function, but it's not looking really good.</p> <p>thanks !</p>

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