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turf-intersect
Advanced tools
Takes two polygons and finds their intersection. If they share a border, returns the border; if they don't intersect, returns undefined.
Parameters
poly1
Feature<Polygon> the first polygonpoly2
Feature<Polygon> the second polygonExamples
var poly1 = {
"type": "Feature",
"properties": {
"fill": "#0f0"
},
"geometry": {
"type": "Polygon",
"coordinates": [[
[-122.801742, 45.48565],
[-122.801742, 45.60491],
[-122.584762, 45.60491],
[-122.584762, 45.48565],
[-122.801742, 45.48565]
]]
}
}
var poly2 = {
"type": "Feature",
"properties": {
"fill": "#00f"
},
"geometry": {
"type": "Polygon",
"coordinates": [[
[-122.520217, 45.535693],
[-122.64038, 45.553967],
[-122.720031, 45.526554],
[-122.669906, 45.507309],
[-122.723464, 45.446643],
[-122.532577, 45.408574],
[-122.487258, 45.477466],
[-122.520217, 45.535693]
]]
}
}
var polygons = {
"type": "FeatureCollection",
"features": [poly1, poly2]
};
var intersection = turf.intersect(poly1, poly2);
//=polygons
//=intersection
Returns (Feature<Polygon> | undefined | Feature<MultiLineString>) if poly1
and poly2
overlap, returns a Polygon feature representing the area they overlap; if poly1
and poly2
do not overlap, returns undefined
; if poly1
and poly2
share a border, a MultiLineString of the locations where their borders are shared
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.
Install this module individually:
$ npm install turf-intersect
Or install the Turf module that includes it as a function:
$ npm install turf
FAQs
find the intersection of spatial features
The npm package turf-intersect receives a total of 16,821 weekly downloads. As such, turf-intersect popularity was classified as popular.
We found that turf-intersect demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 9 open source maintainers collaborating on the project.
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