Crank and Piston Box2D Flash Physics Simulation: Create Prismatic Joint between Piston and World
Now all bodies (Crank, Shaft and Piston) are all joined together with revolute joints. In this tutorial, we use Prismatic Joint to limit the freedom of the Piston.
Flash Box2D Physics Simulation Tutorial Content
A Prismatic Joint in Box2D physics simulation allows for relative translation of two bodies along a specified axis. A prismatic joint prevents relative rotation. Therefore, a prismatic joint has a single degree of freedom. In this example, we will use Prismatic Joint to limit the motion of the Piston to move up and down only.
STEP 6: Create a Prismatic Joint for the Piston and the World
In this tutorial, we use a Prismatic Joint to join the Piston and the World to-gether. The Prismatic Joint limit the motion of the Piston. It only allows the Piston to move in the y-direction (i.e. up and down) only.
Flash ActionScript Codes:
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This Box2D Flash ActionScript Physics Animation tutorial shows how to create prismatic joint. Step 6: create a Prismatic Joint to join the Piston and the World