The Track Graph object can be used to remap the length and height of any spline from 3D to a 2d graph spline. This can then be used with sweep-nurbs, or extrude-nurbs to visualize a track in 2D.
A graph typically has 2 axis.
- Length (X).
- height (Y).
A spline usually has both attributes and is perfect for a graph.
Usage
The Track graph object is a spline Generator. It requires a Link (To A spline Object) and does not need a parent or any particular hierarchy. It is independent of object hierarchy. However, due to the way cinema 4d builds its scenes, it is usually best to place the Track Graph Generator somewhere after the linked spline. That ensures that the linked spline is ready before this generator tries to use it.
Link the graph to a Spline and adjust the size.

The grid options insert segments horizontal and vertical line segments.
With a little xpresso, and ac couple of align to spline tags, you can you can easily get objects to match positions.
TIPs:
- Use the poly object to load a GPX track, if you have one.
- Use the route object to generate an accurate walking or driving route, between one or more pinpoints.