tcql / turf-overlaps

Turf extension for detecting whether LineString, Polygon or MultiPolygon features overlap eachother

turf-overlaps

find whether spatial features overlap

overlap(poly1, poly2)

Takes two Linestring, Polygon or MultiPolygon features and finds whether they overlap.

Parameters

parameter	type	description
poly1	Feature	the first Feature, containing LineString, Polygon or MultiPolygon geometry
poly2	Feature	the second Feature, containing LineString, Polygon or MultiPolygon geometry

Example

var poly1 = turf.polygon([[
  [0, 0],
  [0, 2],
  [2, 2],
  [2, 0],
  [0, 0]
]]);

var poly2 = turf.polygon([[
  [1, 1],
  [1, 3],
  [3, 3],
  [3, 1],
  [1, 1]
]]);

var overlapping = overlaps(poly1, poly2);

// true

Installation

$ npm install --save turf-overlaps

Usage

overlaps = require('turf-overlaps');

var is_overlapping = overlap(poly1, poly2);

Tests

$ npm test

Todo

• Add tests for MultiPolygon
• Add tests for testing overlaps for non-homogenous types (LineString vs Polygon, etc)