VelocityConstraintMode
The velocity constraint mode property controls how the linear velocity of the attachment(s) is constrained.
Items 3
History  Name  Value  Description  

490  Line  0  The velocity component in the direction of the line is constrained to the specified value. The line direction is based on the RelativeTo property:
 
490  Plane  1  The velocity components in the plane are constrained to the specified values. The plane tangents are based on the RelativeTo property:
 
490  Vector  2  The velocity components must be equal to the vector components specified. The coordinate system of the vector is based on the RelativeTo property:

Description
The velocity constraint mode sets how the attachment velocity is constrained. The velocity can be constrained to a line, a plane or a vector. See each mode for more details.