mid: 995 url: http://fraktali.849pm.com/programs/dxf/fern.zip ref_url: ftp://aldebaran.ee.mcgill.ca/pub/dfir/dfir-V2R0.tar.Z format: dxf pid: 27784 polygons: 8448 connected_components: 3746 average_dihedral_angle: 0.281677 bounding_box: xmin = 0.025, ymin = 0.025, zmin = 0.025, xmax = 0.868916, ymax = 0.932844, zmax = 0.975 avg_depth: 1.756886 center: (0.440672,0.268343,0.420708) scale: 0.551927 principle_axes: (0.015947,0.999482,0.027950), (-0.518780,-0.015626,0.854765), (-0.854759,0.028130,-0.518262) principle_values: (0.037199,0.023341,0.021790)