2009

Parent When on, the Rag Doll has two bodies and you can designate an object
to be the parent body. When off, the Spring is single-bodied and the point
occupied by the Parent Space sub-object is the parent.
You assign the parent object by clicking this button and then selecting a rigid
body from any viewport. Thereafter the button displays the name of the parent
body.
Child Displays the name of the second rigid body attached to the Rag Doll.
You assign the child object by clicking this button and then selecting a rigid
body from any viewport.
Align Spaces To Use these options to align the bodies' local constraint spaces.
You can find out more about each option in Working With Constraint Spaces
on page 3928.
Lock Relative Transform When on, the relative transform between the child
and parent constraint spaces is locked: If you move either space in the viewport,
the other space moves along with it.
Strength group
Strength/Tau Govern the impulses applied to the constraint's bodies in order
to maintain the constraint, and so how strongly the constraint works to restrict
their movement. You can find out more about these parameters in
Strength
and Tau
on page 3944.
Limits group
Twist Min The minimum rotation about the twist axis the constraint allows
between the reference and attached objects' constraint spaces. For example,
if Min=–5 then, with respect to the constraint spaces, the child cannot rotate
more than 5 degrees counterclockwise about the twist axis.
Twist Max The maximum rotation about the twist axis the constraint allows
between the reference and attached objects' constraint spaces. For example,
if Max=5 then, with respect to the constraint spaces, the child cannot rotate
more than 5 degrees clockwise about the twist axis.
Cone Min The minimum value, in degrees, used to specify the limit cone.
This value combines with the Cone Max value to generate a symmetrical cone.
This cone is rotated about the plane normal by an offset calculated by
combining these limits. The rotation of the child’s twist axis is then limited
to the volume of this cone with respect to the parent.
For example, if the Min=–10 and Max=20, the range is 30 degrees. A 30-degree
cone [–15,15] is created about the twist axis and is then rotated by the offset
Constraints | 3957