mid: 1040
url: http://yll.hkcampus.net/~yll-vrml/v_com/tree2.wrl
ref_url: http://yll.hkcampus.net/~yll-tcc/vrml/startup.htm
format: wrl 
pid: 2282
polygons: 1872
connected_components: 1845
average_dihedral_angle: 2.74841
bounding_box: xmin = 0.025, ymin = 0.025, zmin = 0.025, xmax = 0.597369, ymax = 0.975, zmax = 0.621006
avg_depth: 1.294270
center: (0.334958,0.559010,0.341678)
scale: 0.428500
principle_axes: (-0.006581,0.999907,0.011980), (0.641770,-0.004965,0.766881), (-0.766869,-0.012735,0.641678)
principle_values: (0.031553,0.010982,0.010892)