Graph Plots terminology

The following definitions are used to explain creating and using graph plots.

Term	Definition
Active channel	A channel that is either selected or pinned
Channel	A stream of data that can be added to a graph plot
Channel cache	The amount of channel data stored either in memory or disk. The Cache Memory Limit (see Preferences parameters in the Vicon Evoke Reference Guide) controls the threshold when data is to be written to disk.
Channel source	A selection that provides one or more data channels and includes: Vicon camera Object, marker, or unlabeled reconstruction Character or segment (solving skeleton or retargeting skeleton)
Channel type	A channel source may provide multiple data streams of different types, which may be selected from the dropdown menu on the Graph Plots toolbar
Component	One part of a channel data value
Dependent channel	A channel that is only available with a channel source selected (eg, object position)
Frame number	A number that increments sequentially for each frame of system data received
Gap	A time period of missing channel data (eg, because tracking was interrupted)
Independent channel	A channel that is available without a channel source being selected (eg, DataStream Output Latency)
Live mode	A mode that displays data from the connected live system
Pinning	This locks a channel on a graph plot even if the channel source is de-selected
Review mode	A mode that displays data from the selected review clip
Sample	A set of channel component values, taken at a single point in time
Sample number	A number that increments sequentially for each channel sample received. Channels are sampled at the system frame rate, so the sample number is equal to the frame number.
Subplot	A subdivision of the graph plot containing one or more traces of the same type
Trace	The visual representation of a single component of a channel data stream on the graph plot