BeliefTrees

1. About

• This processing sketch is intended to visualize a state or belief tree of a pomdp solution.
• The nodes of the tree are read from a json file in the data folder that contains a vector of children nodes, and N and Q values for each node, stored as three separate vectors, and names "children", "N", and "V" respectively.
• Each integer in the array represents the index of a child node of the node in question.
• To save such a file in julia, create the vector of children nodes (i.e. with D3Trees) and save it as JSON.json(:children => Vector{Vector{Int}}(...), "N" => Vector{Int}(...), "V" => Vector{Float64}(...)).
• Once the file is in place, change the global String file to the filename (without the json extension).

2. Keybindings

• r - save pdf

• s - save png

• b - draw circle border

• c - choose new seed color

• i - show indices of nodes (for degbugging)

• p - toggle between simplified drawing and nice drawing

• w/q - increase/decrease branching angle

• spacebar - recalculate node positions

• up/down arrow - increase/decrease node size

• left/right arrow - rotate

• left mouse button - move root of tree.