mid: 1121
url: http://fraktali.849pm.com/programs/dxf/Doppeld.zip
ref_url: ftp://aldebaran.ee.mcgill.ca/pub/dfir/dfir-V2R0.tar.Z
format: dxf 
pid: 27178
polygons: 1913
connected_components: 15
average_dihedral_angle: 0.395114
bounding_box: xmin = 0.025, ymin = 0.025, zmin = 0.025, xmax = 0.792248, ymax = 0.975, zmax = 0.328749
avg_depth: 1.361742
center: (0.286080,0.499308,0.131389)
scale: 0.500271
principle_axes: (-0.000251,0.999970,0.007768), (-0.999507,-0.000007,-0.031409), (0.031408,0.007772,-0.999476)
principle_values: (0.042870,0.025939,0.006143)