@turf/polygonize
polygonize
Polygonizes (Multi)LineString(s) into Polygons.
Implementation of GEOSPolygonize function (geos::operation::polygonize::Polygonizer
).
Polygonizes a set of lines that represents edges in a planar graph. Edges must be correctly
noded, i.e., they must only meet at their endpoints.
The implementation correctly handles:
- Dangles: edges which have one or both ends which are not incident on another edge endpoint.
- Cut Edges (bridges): edges that are connected at both ends but which do not form part of a polygon.
Parameters
- Throws Error if geoJson is invalid.
Returns FeatureCollection<Polygon> Polygons created
This module is part of the Turfjs project, an open source module collection dedicated to geographic algorithms. It is maintained in the Turfjs/turf repository, where you can create PRs and issues.
Installation
Install this single module individually:
$ npm install @turf/polygonize
Or install the all-encompassing @turf/turf module that includes all modules as functions:
$ npm install @turf/turf