8

Position Constraint 385
To edit weight values:
1.
Select the constrained object.
2. OntheMotionpanel,onthePositionlist,
double-click Position Constraint.
The Position constraint parameters are located
under the Position Constr aint rollout.
3. Click a target from the list.
4. Adjust the Weight spinner or enter a numerical
valuefortheweightvalue.
To animate weight values:
1.
Select the constrained object.
2. OntheMotionpanel,onthePositionlist,
double-click Position Constraint.
The Position constraint parameters are located
under the Position Constr aint rollout.
3. Click a target from the list.
4. Turn on the Auto Key button.
5. Adjust the Weight spinner or enter a numerical
valuefortheweightvalue.
Example: To a ssign a Position constraint with two
targets and editing weights:
1.
IntheTopviewport,createasphere,abox,and
a cylinder so that the box is between the sphere
and the cylinder.
2. Click to select the box, assign a Position
constraint,andselectthesphereasthetarget.
3. Click to select the box, assign a Position
constraint, and select the cylinder as the target.
The box is now position-constrained between
the two targets.
4. In the Top viewport, move the sphere around.
As the sphere moves, the box maintains an
equal distance between the sphere and the
cylinder. This is because the weight va lues for
both targets are equal. By default the values are
1.00. If the sphere had a higher weig ht value
thanthecylinder,thespherewouldinfluence
the box more than t he cylinder.
5. To edit the weight values, select the box.
6. Open the Motion panel and view the Position
Constraint rollout.
7. Click the Cylinder’s name in list of targets.
8. Using the Weight spinner, change the value
from 50 to 20.
As the value decreases, the box moves closer
to the sphere.
9. In the Top viewport. select the cylinder and
move it around.
10. In the Top viewport, select the sphere and mov e
it around.
Thespherehasmoreinfluenceoverthebox’s
movement than the cylinder.
Interfa ce
Once you assign a Position constraint, you can
access its properties on the Position Constraint
rollout in the Motion panel. In this rollout you
can add or delete targets, assign weighting, and
animate each target’s weight value.