the function to use to colour the segments (e.g. heat.colors).
col
the colour with which to draw the comparison neuron.
AbsoluteScale
logical indicating whether the colours should be calculated based on the minimum and maximum similarities for the neuron (AbsoluteScale = FALSE) or on the minimum and maximum possible for all neurons.
PlotVectors
logical indicating whether the vectors of the dotprops representation should be plotted. If FALSE, only the points are plotted.
...
extra arguments to pass to plot3d.
Value
show_similarity is called for the side effect of drawing the plot; a vector of object IDs is returned.