A further display property that we can achieve per object is the trajectory or motion an object has over time. A trajectory is a 3D curve that visualizes the motion of the object in parallel with the keyframes in the timeline.
When an object moves, its path can be traced as a line called a trajectory. The following steps show how to expose this in the viewports:
In the scene, there is a HUD panel in the bike's canopy that follows the animation of the canopy itself—they are linked. The canopy simply rotates, so it has no trajectory, but the panel, while not animated directly, gets its motion from its parent, like chewing gum stuck on the spinning wheel of a bike. The trajectory display is already on in the scene.
Press F3 to view this more clearly in the wireframe:
The trajectory displays even when the object is not selected. To turn it off, use the Named Selections list to select
Panel 1
. Right-click on it and select Object Properties...