Thank you for your reply.

I was able to understand.

If I import the model expoted obj model again, the model will be treated as props.

I noticed that this prop contains a body part in a group.

#test_model.obj imported

actor = scene.Actor("test_model")

actGeom = actor.Geometry()

print(actGeom.Groups())

----result----

['hip', 'abdomen', 'chest', 'lThigh', 'lShin', 'lFoot', 'neck', 'head', 'lCollar', 'lShldr', 'lForeArm', 'lHand', ' rThigh', 'rShin', 'rFoot', 'rCollar', 'rShldr', 'rForeArm', 'rHand']

What I want to do now is get the coordinates of just the "hip" part, for example. (act Geom.Vertices())

Is it possible to select only one part in the group and get the vertex coordinates limited to that part?

Which method will be used?

Thank you all for your kindness.