Changes

== Methods ==

== Methods ==

Electromagnetic tracking requires an external source. It also does not work reliably in the presence of metallic objects, like a metal laptop computer. A metallic laptop has to be at least a foot or two away from the tracking area so it doesn't interfere. Metallic objects cause jitter and drift.

Electromagnetic tracking requires an external source. It also does not work reliably in the presence of metallic objects, like a metal water bottle or laptop computer. A metallic object has to be at least a foot or two away from the tracking area so it doesn't interfere. Metallic objects cause jitter and drift.

Magnetic tracking is typically wired, but it does not have to be.

Magnetic tracking is typically wired, but it does not have to be.

[[Category:Tracking]]

[[Category:Tracking]]