2009

Parent When on, the constraint has two bodies and you can designate an
object to be the parent body. When off, the constraint 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 constraint.
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 and rotates along with it, and vice-versa.
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.
Constraint Type group
These options let you choose the type of Point-Point constraint to add to your
scene.
■ Standard The default option.
■ Limited This type allows you to limit how the child object can rotate
relative to the parent.
■ Stiff Spring This type allows you to specify a distance for reactor to
maintain between the constraint attachment points.
Limited (Limited constraints only) Lets you specify how much the child
object can rotate relative to the parent around the x, y, and z axes - for each
axis there is a minimum (counterclockwise) and maximum (clockwise) limit.
You can use the check boxes to switch on or off the limit displays in the
viewport.
Constraints | 3981