@turf/boolean-overlap

@turf/boolean-overlap

booleanOverlap

Compares two geometries of the same dimension and returns true if their intersection set results in a geometry different from both but of the same dimension. It applies to Polygon/Polygon, LineString/LineString, Multipoint/Multipoint, MultiLineString/MultiLineString and MultiPolygon/MultiPolygon.

In other words, it returns true if the two geometries overlap, provided that neither completely contains the other.

Parameters

• feature1 (Geometry | Feature<(LineString | MultiLineString | Polygon | MultiPolygon)>) input
• feature2 (Geometry | Feature<(LineString | MultiLineString | Polygon | MultiPolygon)>) input

Examples

var poly1 = turf.polygon([[[0,0],[0,5],[5,5],[5,0],[0,0]]]);
var poly2 = turf.polygon([[[1,1],[1,6],[6,6],[6,1],[1,1]]]);
var poly3 = turf.polygon([[[10,10],[10,15],[15,15],[15,10],[10,10]]]);

turf.booleanOverlap(poly1, poly2)
//=true
turf.booleanOverlap(poly2, poly3)
//=false

Returns boolean true/false

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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/boolean-overlap

Or install the all-encompassing @turf/turf module that includes all modules as functions:

$ npm install @turf/turf

Diagrams