Function addSample

addSample(json?: { name: string; type: "track" | "marker" | "route" }): void
Add a demo route, marker, or track by name to the current trip.
Parameters
- json: { name: string; type: "track" | "marker" | "route" } = ...
Returns void
Example
```
{"type": "route", "name": "Seattle to Port Townsend"}
```