mid: 757
url: http://zombie.serv.com.au/vrml/studio/models/background.wrl
ref_url: http://zombie.serv.com.au/vrml/studio/models/
format: wrl 
pid: 22020
polygons: 256
connected_components: 2
average_dihedral_angle: 0.389917
bounding_box: xmin = 0.025, ymin = 0.025, zmin = 0.025, xmax = 0.536199, ymax = 0.975, zmax = 0.562506
avg_depth: 1.198696
center: (0.280599,0.566114,0.293753)
scale: 0.582193
principle_axes: (0.000000,1.000000,-0.000000), (-0.999069,0.000000,0.043152), (0.043152,0.000000,0.999069)
principle_values: (0.058955,0.018113,0.018113)