====Tracking Node====

This node is exclusive to the [[module_sheartracking|Shear Tracking]] module.

It's the [[final output|final output]] module for shear tracking - it takes your current shearer position, cutting details and key properties of your wall to make a shear tracking table and event source.

{{sheartrack_tracking.png}}

===Inputs===

**Value (Input #1)** is a //number// that indicates the position (in roof supports) of the shearer. \\
**MGCut (Input #2)** is a //true// or //false// value. If **true**, it means you're currently cutting from Maingate to Tailgate. \\
**TGCut (Input #3)** is a //true// or //false// value. It **true**, it means you're current cutting from Tailgate to Maingate \\

===Options===

//Please note that all option values are measured in **roof supports**//

The **mg** option is the roof support at which your shearer is considered 'in the maingate' - a shear isn't really complete until it reaches this point. Usually this is 6 or 7 supports in from the end.

The **tg** option is the same for the tailgate end. Just like the //mg// option, this is usually 6 or 7 supports in from the tailgate end.

The **tolerance** option is used to enter how much movement we expect out of the MG or TG before we decide the next shear has been started. This should always be **at least 1.2x the expected travel during a double-cut** (ie. if you double-cut back to support 10, this should be set to at least 12).

===Notes===

During operation, you might notice that the //current// shear (when it is still incomplete) might be abnormally long. This is because the algorithm doesn't consider the shear finished until //after the shearer leaves the gate-end on it's trip to the other side//.