Plotting errors in NaVis about navis

[schlegelp]

Re 1: Good catch. Fixed with 7bd3cde

Re 2: I have yet to rerun your example but it looks to me that the neuron(s) in the top row are simply different from those in the mid/bottom row. I suspect there is something wrong with how you subset the neuronlist. Could you check what's contained in the to_plot_pr NeuronList?

[SridharJagannathan]

@schlegelp You are right reg 2) I made a mistake with the indexes fixed it now and the correct results are indeed displayed here: https://github.com/flyconnectome/2020hemibrain_ALLN/blob/53547a848d88fa544180929a123637e4a2ffcaea/Python/HemibrainPN_kde.ipynb