When you add objects to the scene, such as models or images, they are added with their own axes. Each axis is used to place its respective object in the scene. An axis is represented by the following icon.
All transformations that you apply to the selected axis are applied to the objects connected to the axis. For example, if the position of a surface's axis is set to 500, 100, 0, then its surface is placed at 500 on the X-axis, 100 on the Y-axis, and 0 on the Z-axis.
(a) Surface is placed in the scene at 500, 100, 0
You can add an axis manually to the scene from the Objects tab of the node bin. The following nodes are added with axes automatically:
