@turf/inside
inside
Takes a Point and a Polygon or MultiPolygon and determines if the point resides inside the polygon. The polygon can be convex or concave. The function accounts for holes.
Parameters
-
point
Feature<Point> input point -
polygon
Feature<(Polygon | MultiPolygon)> input polygon or multipolygon -
options
Object Optional parameters (optional, default{}
)-
options.ignoreBoundary
boolean True if polygon boundary should be ignored when determining if the point is inside the polygon otherwise false. (optional, defaultfalse
)
-
Examples
var pt = turf.point([-77, 44]);
var poly = turf.polygon([[
[-81, 41],
[-81, 47],
[-72, 47],
[-72, 41],
[-81, 41]
]]);
turf.inside(pt, poly);
//= true
Returns boolean true
if the Point is inside the Polygon; false
if the Point is not inside the Polygon
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 module individually:
$ npm install @turf/inside
Or install the Turf module that includes it as a function:
$ npm install @turf/turf