[graph-tool] Fractal dimension of the graph

Hi all, I would like to determine the fractal dimension of the graph. I can assigned a "geometric distance" between each pair of vertices, therefore, I could also assign each edge a "length". One thing I could do is to somehow define a center and then count the the number of the nodes within "a circle" with increasing "radius". See how the number of the vertices scales with the increasing radius. I wonder Is there any other ways to calculate the fractal dimension using some features from any graph-tool functions? Can I estimate the fractal dimension from the adjacency matrix maybe? I would appreciate any advise. Thanks! Best, Hu