intersect

描述

🌐 Description

接受 polygon 或 multi-polygon 几何，并找到它们的多边形交集。如果它们不相交，则返回 null。

🌐 Takes polygon or multi-polygon geometries and finds their polygonal intersection. If they don't intersect, returns null.

参数

🌐 Parameters

名称	类型	描述
features	FeatureCollection<Polygon | MultiPolygon>	要相交的特性
options?	Object	可选参数 (默认 {})
options.properties?	Object	将 GeoJSON 属性转换为要素 (默认 {})

返回

🌐 Returns

Feature | null 返回表示它们共享区域的要素（可以是 Polygon 或

MultiPolygon)。如果它们没有共享任何区域，则返回 null。

示例

🌐 Examples

var poly1 = turf.polygon([
  [
    [-122.801742, 45.48565],
    [-122.801742, 45.60491],
    [-122.584762, 45.60491],
    [-122.584762, 45.48565],
    [-122.801742, 45.48565],
  ],
]);

var poly2 = turf.polygon([
  [
    [-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 intersection = turf.intersect(turf.featureCollection([poly1, poly2]));

安装

🌐 Installation

$ npm install @turf/intersect

import { intersect } from "@turf/intersect";
const result = intersect(...);

$ npm install @turf/turf

import * as turf from "@turf/turf";
const result = turf.intersect(...);