Model Info
The info file for each model is stored in m[$modelId]_info.txt within
the model directory. Each line of the file has a field and a value.
- mid The model id for this model.
- url The url where this model was downloaded.
- ref_url The url for the referring web page. This may be blank
if we found the url for the model directly.
- format The original format for the model before conversion to ply.
wrl, 3ds, etc.
- pid An identifier included for historical purposes.
- polygons The number of polygons in the model, not
necessarily triangulated.
- connected_components The number of connected components in
the model.
- average_dihedral_angle The average dihedral angle weighted
by the edge length.
- bounding_box The axis aligned bounding box of the model, specifying min
and max values for the x, y, and z axes.
- avg_depth The average pixel depth complexity when the model is rendered with
parallel projection from viewpoints at the vertices of an icosahedron.
- center The center of mass.
- scale The average distance from all points on the surfaces
of all polygons to the center of mass.
- principle_axes The eigenvectors of the covariance matrix
obtained by integrating the quadratic polynomials
xi*xj with all xi in {x, y, z}, over
all points on the surfaces of all polynomials.
- principle_values The eigenvalues associated with the
principle axes.
Below is an example:
mid: 789
url: http://www.amazing3d.com/free/stool3ds.zip
ref_url:
format: xthreexds
pid: 47610
polygons: 4808
connected_components: 9
average_dihedral_angle: 0.337324
bounding_box: xmin = 0.025, ymin = 0.025, zmin = 0.025, xmax = 0.511587, ymax =
0.975, zmax = 0.513989
avg_depth: 1.259353
center: (0.267756,0.637098,0.269959)
scale: 0.639414
principle_axes: (0.001593,0.999999,-0.000106), (0.002350,0.000102,0.999997), (-0.999996,0.001593,0.002350)
principle_values: (0.084827,0.015384,0.015294)