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update README to add segmented road example

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Pim Nelissen
2026-01-30 20:05:36 +01:00
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@ -54,10 +54,20 @@ road-gen random -l 1000 -s 10 -v 10 --save
which will produce 3 files starting with the unique seed number used to generate the road. which will produce 3 files starting with the unique seed number used to generate the road.
## Example - segmented road
A minimal segmented road needs, besides length $L$, step size $\Delta s$ and velocity $v$, a list of segments.
```
road-gen segments --segments straight turn_left straight turn_right --length 1000 --ds 10 --velocity 10
```
The parameter $\alpha$ represents the concentration factor for the [Dirichlet distribution](https://numpy.org/doc/2.0/reference/random/generated/numpy.random.dirichlet.html).
## Reproducability ## Reproducability
You can reproduce results by adding a seed with the `--seed` flag. You can reproduce results by adding a seed with the `--seed` flag.
## Other ## Other
For more info, just see `road-gen --help` or `road-gen random --help`. For more info, see `road-gen --help` or `road-gen random --help`.