Adobe Director Basics

ADOBE DIRECTOR BASICS
3D: Controlling action
The AngularJoint.dir movie shows how the movement of two joined objects is constrained
You can use the buttons in the red zone to move the red box and the buttons in the green zone to move the green box.
Note how the distance between the two boxes is maintained, but they are free to rotate independently.
You can alter the stiffness and damping of the angular joint. These values are not limited to 10.0 or 100.0, despite
what the movie shows. These values have been chosen as suitable values for testing in the context of this movie. The
most appropriate values for your projects will depend on the mass of the objects, their friction, and other properties.
A low value for stiffness will allow the objects to move away from their rest-length distance more easily. A low value
for damping will lead to objects oscillating about their rest-length distance.
Note: In Director 11.5, if you reduce damping, you may see no change in the behavior of the angular joint until you
modify the stiffness.
Linear joint properties
A linear joint between two objects allows those objects to move freely to any spatial position with respect to each other.
However, the difference in orientation of the two objects is constrained.
For information on how to create, access, and delete a linear joint, see “Joints and springs” on page 330. To experiment
with the way a linear joint will link two rigid objects together, download the movie LinearJoint.dir.
Last updated 8/26/2011
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