An additional rotation option is needed for cant application. This is an offset point from the track centreline location. Offset point is a user defined value and defined in the tool interface. When Center Offset is selected as rotation option, two more input areas are displayed to enter X, and Y offset values. These values are also stored in the cant object properties, similar to other cant properties. Below you can see an example about how this works.

This option is needed for underground metro/subway application. As in these works cant rotation is applied using the tunnel axis. This is required for excavations where a tunnel boring machine (TBM) is used, providing tunnel shape can remain the same when cant is applied.

* Center Offset

* X Value
* Y Value