78 lines
2.3 KiB
Matlab
78 lines
2.3 KiB
Matlab
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classdef thinTree
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% Attributes
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properties (SetAccess = private)
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nodes = { [] }; % Array of the nodes
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depth = 0; % Depth of the tree
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w = 0 % Number of parents for each node
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links = []; % The matrix representing the links between the nodes
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end
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% Methods
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methods
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% Constructor
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function [obj root_ID] = thinTree(d, w)
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% If 0 input arguments, assume d = 1 and w = 1
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if nargin < 1
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[obj root_ID] = thinTree(1, 1);
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return
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end
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% If 1 input argument, assume w = 1
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if nargin < 1
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[obj root_ID] = thinTree(d, 1);
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return
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end
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% Else
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if w > d-1
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error('MATLAB:thinTree:thinTree', ...
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'Cannot have %d parents on a binary tree of depth %d. You must have nParents < %d here.\n', w, d, d);
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end
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root_ID = 1;
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obj.nodes = cell(2^d - 1,1); % Creation of the d^2 empty cells
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obj.depth = d;
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obj.w = w;
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obj.links = eye(2^d - 1); % Creation of the links matrix
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% Link the cells
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end
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% Function to add a content for a specific node
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function [obj] = addContent(obj, content, nodeID)
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obj.nodes{nodeID} = content;
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return
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end
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% Function to return the ID's of a node's parents
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function ids = getParents(obj, nodeID)
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% Initialisation
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ids = zeros(1,obj.w);
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node = nodeID;
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% Loop on w, the number of parents associated to one node
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for i=1:obj.w
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ids(i) = floor(node/2);
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node = floor(node/2);
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end
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% Return
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return
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end
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% Accessors
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function output = getDepth(obj)
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output = obj.depth;
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return
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end
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function output = getW(obj)
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output = obj.w;
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return
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end
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function output = getNumberOfElements(obj)
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output = 2^obj.depth - 1;
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end
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end % Methods
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end % Class
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