Pole Vector Constraint Options

Weight
Specifies how much the constrained pole vector’s end position can be influenced by the target object(s). Use slider to select values from 0.0000 to 10.0000. Default is 1.0000.
A target object’s weight specifies how much the position of the constrained pole vector can be influenced by a target object. The weights are attributes of the pole vector constraint. For each target object, an attribute named targetObject Wn specifies the weight of each target object.
By default, the weights are set to 1, giving each target object an equal influence over the constrained pole vector’s end position. You can change the weights so that some target objects can have more (or less) influence than others by editing the targetObject Wn attribute in the Channel Box or the Attribute Editor. See Edit pole vector constraints for information on changing the targetObject Wn attribute.