Pyplot not plotting DH robot

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Describe the bug The pyplot in inline mode (spyder or jupyter notebook) of DH robot do not show the robot, I think that is the last update of some dependency.

Version information

Did you install from PyPI or GitHub? I install the last version with pip

Robotics Toolbox depends heavily on two other packages: Swift (3D graphics) and SpatialMath toolbox (underpinning maths utilities). If you think your issue is related to these, then please answer the questions above for them.

To Reproduce

import matplotlib.pyplot as plt
import roboticstoolbox as rtb
%matplotlib inline  
puma = rtb.models.DH.Puma560()
puma.q=puma.qz
puma.plot(puma.qz, block=False)

generate a 3dplot without the robot draw

Expected behavior See the robot like happen if the back is qt5 or before the error.

Screenshots

Environment (please complete the following information):

• WINDOWS
• Python 3.8.5.
• anaconda

[rag-h]

I was going through this tutorial and I managed to plot the puma robot in cell 4. Looking at why in a little bit more detail, i found that the %matplotlib notbook, was the only major difference.

Adding that line into the top of my notebook after my imports made it so that the models all appeared.

Without the line:

With the line:

[core-engineering]

Hi,

A workaround for me is to use %matplotlib widgets in jupyterLab and in vscode

Camille