You can control component motion in an animation by mating the component to a single entity curve, using coincident mates, or to a multiple entity curve, using path mates.
You can also use a curve to define camera-based walk-through animations.
Controlling Component Motion
To control component motion with curve mates:
- Mate the component to a curve.
- Drag the component along the curve.
Making Camera-based Animations
To make a camera-based walk-through animation:
- Attach the camera position or target point directly to the curve.
- Animate using the camera property key points.
Creating Single Entity Curves
To create single entity curves from multiple entities, use Fit Spline 
in 2D or 3D sketches to create a single entity curve. Fit Spline can also join discontinuous entities.