voronoi

> npm install @turf/voronoi

Takes a FeatureCollection of points, and a bounding box, and returns a FeatureCollection of Voronoi polygons.

接收 type 为 point 的要素集和边界框 bbox，并返回 Voronoi 多边形的要素集

值得注意的是，voronoi (opens new window) 是对空间平面的一种分割算法：对离散数据点合理地连成三角网

参数

入参	类型	描述
points	FeatureCollection<Point>	要素集
options	Object	可配置项

options

属性	类型	默认值	描述
bbox	Array	[-180,-85,180,-85]	[xmin,ymin,xmax,ymax]

返回

FeatureCollection<Polygon>

范例

var options = {
  bbox: [-70, 40, -60, 60],
};
var points = turf.randomPoint(100, options);
var voronoiPolygons = turf.voronoi(points, options);

基础用法

打开

<template>
  <base-map>
    <a-button
      type="primary"
      @click="
        () => {
          visible = true;
        }
      "
      >打开</a-button
    >
    <drawer :visible.sync="visible" :code="code">
      <a-row> <json :data="result"></json> </a-row>
    </drawer>
    <vue2ol-layer-vector>
      <vue2ol-source-vector :features="features1"> </vue2ol-source-vector>
    </vue2ol-layer-vector>
    <vue2ol-layer-vector :style-obj="styleRed">
      <vue2ol-source-vector :features="features"> </vue2ol-source-vector>
    </vue2ol-layer-vector>
  </base-map>
</template>
<script>
import * as turf from "@turf/turf";
import { getFeaturesFromTurf, styleRed } from "../../utils/index.js";
export default {
  data() {
    return {
      result: null,
      visible: true,
      features: [],
      styleRed,
      turfObj1: null,
      features1: [],
    };
  },
  computed: {
    code() {
      return `let options = {
  bbox: [-70, 40, -60, 60]
};
var points = turf.randomPoint(100, options);
var voronoiPolygons = turf.voronoi(points, options);`;
    },
  },
  mounted() {
    var options = {
      bbox: [
        119.66890811920167, 27.852113723754883, 120.30886173248292,
        28.188570022583008,
      ],
    };
    var points = turf.randomPoint(100, options);
    this.features1 = getFeaturesFromTurf(points);
    this.result = turf.voronoi(points, options);
    this.features = getFeaturesFromTurf(this.result);
  },
};
</script>

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