Many ways were implemented to explore the tree visually, for example:

>> xplore_tree; axis off;


this is equivalent to „xplore_tree (1)“ or „xplore_tree (trees{1})“ or
„xplore_tree ([])“.

But the most common function will be:

>> plot_tree (1, [1 0 0]);


which takes a color as a first argument, here RGB: red.

This is all in 3D of course. This becomes clearer when adding light (turning on opengl) and adopting another view:

>> shine; axis off; view (15,55);


Importantly, the color can also be an Nx1 vector which is then mapped to the color of the tree:

>> plot_tree (1, BO_tree (1));

>> colorbar;


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