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Version: 7.2.0

intersect

描述​

¥Description

获取 polygon 或 multi-polygon 几何体并查找它们的多边形交集。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
featuresFeatureCollection<多边形 | MultiPolygon>待相交的要素
options?对象可选参数（默认 {}）
options.properties?对象将 GeoJSON 属性转换为要素（默认 {}）

返回​

¥Returns

特性 | null 返回表示它们共享区域的要素（多边形 或 MultiPolygon）。如果它们不共享任何区域，则返回 null。

¥Feature | null returns a feature representing the area they share (either a Polygon or MultiPolygon). If they do not share any area, returns 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(...);