Calculate the network graph of a 3D voxel skeleton.

Convert a 3D skeleton binary matrix created with bwskel(D) to a MATLAB Graph, in a fast and efficient manner (no loops)

Convert a 3D skeleton binary matrix created with bwskel(D) to a

MATLAB Graph, in a fast and efficient manner (no loops) similar to Skel2graph3D:

https://www.mathworks.com/matlabcentral/fileexchange/43527-skel2graph-3d?s_tid=ta_fx_results

In about one tenth of the time.

Input: Binary skeleton (Like the included skel, view with isosurface(skel)

Output: G: A MATLAB 3d graph object - https://www.mathworks.com/help/matlab/ref/graph.html?s_tid=srchtitle_site_search_1_graph

A: The adjacency matrix - https://www.mathworks.com/help/matlab/ref/graph.adjacency.html?s_tid=doc_ta

P: 3D points coordinates

Z: The zscore of these (P) points location

Dependencies: dependencies.toolboxDependencyAnalysis('Skel2graph3D_fast.m'): {'MATLAB'} {'Statistics and Machine Learning Toolbox'}

MATLAB version: created with MATLAB version 2023a but should work with earlier

versions

to view the graph in 3D:

close all; p = plot(G); hold on

p.XData = P(:,1); p.YData = P(:,2); p.ZData = P(:,3);

rotate3d; view(3);