Laneify
Create offset GeoJSON LineString features (lanes) based on an OSM way (road)
Installation
npm install laneify
Example usage
Given some Open Street Maps GeoJSON way feature:
var laneify = var offset = 1 // The geographical distance to offset by (in WGS84 coordinate space)var road = var lanes = laneify
Restricting Highway types
You can specify particular OSM highway types that you only want to split:
var lanes = laneify
If the supplied GeoJSON doesn't match that highway type, an error will be thrown, so you may want to manage exceptions with a try/catch block.
Output
Returns a GeoJSON feature collection with either 2 features representing the left and right sides of the road, or one feature if the road is a one-way road. One-way roads do not get their coordinates offset.
TODO
- Allow users to specify number of lanes to split into