Position Constraint

The Position Constraint binds the world origin, for example, to a specific feature (this will be the Object Tracker's origin if the Object Tracker is used) - the vertex cluster will be positioned accordingly.

Use the tag as follows to calibrate (2 methods):

• Create the tag for the respective Motion Tracker or Object Tracker object. A small orange circle will be displayed at the center of the Viewport (always visible when the tag is active). Drag this circle onto the desired Track or feature:
  
  
  
  The Motion Tracker links the associated Null object in the tag and uses it to define the world origin, for example, by moving the vertex cluster, including the camera, accordingly.
• Select the Create Position Constraint command (main menu: Tracker | Constraints and click on the desired Track. A Position Constraint tag with a linked Null object that matches the Track will be created automatically.

Create Position Constraint

This command creates a Position Constraint tag with a matching linked feature (see previous paragraph).