mid: 1464
url: http://www.3dcafe.com/models/uboat.zip
ref_url: http://www.3dcafe.com/asp/mil_pics.asp
format: xthreexds 
pid: 28847
polygons: 5534
connected_components: 39
average_dihedral_angle: 0.456269
bounding_box: xmin = 0.025, ymin = 0.025, zmin = 0.025, xmax = 0.19372, ymax = 0.342441, zmax = 0.975
avg_depth: 1.141101
center: (0.108707,0.135264,0.482894)
scale: 0.375253
principle_axes: (0.002131,-0.008344,-0.999963), (-0.025529,0.999639,-0.008396), (0.999672,0.025546,0.001917)
principle_values: (0.048569,0.001158,0.000686)