mid: 1329
url: http://www.maui.net/~fractal/helicopter.wrl
ref_url: http://www.maui.net/~fractal/
format: wrl 
pid: 6252
polygons: 1243
connected_components: 14
average_dihedral_angle: 0.44537
bounding_box: xmin = 0.025, ymin = 0.025, zmin = 0.025, xmax = 0.787129, ymax = 0.574544, zmax = 0.975
avg_depth: 1.488598
center: (0.408500,0.351711,0.440295)
scale: 0.529566
principle_axes: (-0.055759,-0.046456,-0.997363), (0.959213,0.274768,-0.066424), (-0.277129,0.960388,-0.029241)
principle_values: (0.039389,0.019974,0.019091)