mid: 962 url: http://www.3dcafe.com/models/grass11_s.zip ref_url: http://www.3dcafe.com/asp/plt_pics.asp format: xthreexds pid: 29021 polygons: 19104 connected_components: 968 average_dihedral_angle: 0.412793 bounding_box: xmin = 0.025, ymin = 0.025, zmin = 0.025, xmax = 0.975, ymax = 0.914711, zmax = 0.96296 avg_depth: 1.398291 center: (0.489888,0.446285,0.466118) scale: 0.524624 principle_axes: (0.369294,0.920735,0.125969), (-0.651571,0.353186,-0.671353), (0.662629,-0.165849,-0.730354) principle_values: (0.035807,0.025633,0.019576)