mid: 1635 url: http://www.3dcafe.com/models/helm2.zip ref_url: http://www.3dcafe.com/asp/mil_pics.asp format: 3ds pid: 28824 polygons: 10190 connected_components: 1 average_dihedral_angle: 0.218269 bounding_box: xmin = 0.025, ymin = 0.025, zmin = 0.025, xmax = 0.844032, ymax = 0.698107, zmax = 0.975 avg_depth: 1.343486 center: (0.434524,0.384488,0.445491) scale: 0.781955 principle_axes: (0.000226,-0.327703,-0.944781), (-1.000000,0.000371,-0.000368), (0.000471,0.944781,-0.327703) principle_values: (0.076250,0.056736,0.024916)