.By default, the part remains stationary on the Graphic Display window and the animated probe moves around the part as its physical counterpart moves in 3D space; to see a different section of a larger part on the screen, you have to translate (or move) the part image inside the Graphic Display window.
The Operation | Graphic Display window | Center Probe menu item changes this default panning functionality so that as the probe physically moves, the part on the screen moves instead thereby keeping the animated probe image always centered on the screen.
You can also access this from the Graphic
Modes toolbar, and clicking the Center Probe
icon .
You may find this centering functionality helpful if you are using portable devices to measure a large part. It allows you to walk around a large part, and even though you aren't near the computer, the Graphic Display window automatically updates so that the probe remains visible in the window along with the section of the CAD model you are inspecting.