mid: 1645
url: http://www.3dcafe.com/../models/tractor1.zip
ref_url: http://www.3dcafe.com/../asp/vehicles.asp
format: lwo 
pid: 30486
polygons: 1734
connected_components: 1
average_dihedral_angle: 0.353291
bounding_box: xmin = 0.025, ymin = 0.025, zmin = 0.025, xmax = 0.427193, ymax = 0.975, zmax = 0.0915678
avg_depth: 1.234183
center: (0.241342,0.476980,0.076753)
scale: 0.569458
principle_axes: (-0.110345,0.993876,-0.005900), (-0.993893,-0.110342,0.000903), (0.000247,0.005963,0.999982)
principle_values: (0.070861,0.021243,0.000093)