弧度转长度(radiansToLength)

> npm install @turf/helpers

Convert a distance measurement (assuming a spherical Earth) from radians to a more friendly unit. Valid units: miles, nauticalmiles, inches, yards, meters, metres, kilometers, centimeters, feet

接收一个弧度数值，返回其指定单位的数值。单位有 miles(英里), nauticalmiles(海里), inches(英寸), yards(码), meters(米), metres(米), kilometers(千米), centimeters(厘米), feet(英尺)

参数

参数	类型	描述
radians	number	跨球面的弧度
units	string	转换后的单位。单位有 miles(英里), nauticalmiles(海里), inches(英寸), yards(码), meters(米), metres(米), kilometers(千米), centimeters(厘米), feet(英尺)

返回

number - 转换后的长度

示例

turf.radiansToLength(1.0471975511965976, 'meters'); // 6671704.814011974

基础用法

打开 要被转换的弧度： 单位： 转换后的长度：

<template>
  <div style="position:relative;width:100%;height:400px; overflow: hidden;">
    <a-button
      type="primary"
      @click="
        () => {
          visible = true;
        }
      "
      >打开</a-button
    >
    <drawer :visible.sync="visible" :code="code">
      <a-row
        ><a-space
          >要被转换的弧度：<a-input-number
            v-model="origin"
          ></a-input-number></a-space
      ></a-row>
      <a-row
        ><a-space
          >单位：<length-units
            :value.sync="unit"
          ></length-units></a-space
      ></a-row>
      <a-row
        ><a-space
          >转换后的长度：<a-input-number
            style="width:100%"
            :value="dest"
            disabled
          ></a-input-number></a-space
      ></a-row>
      <a-row> {{ result }}</a-row>
    </drawer>
  </div>
</template>
<script>
import * as turf from "@turf/turf";
import { GeoJSON } from "ol/format";
import { Style, Stroke } from "ol/style";
export default {
  data() {
    return {
      origin: 1,
      unit: "kilometers",
      result: null,
      visible: true,
    };
  },
  computed: {
    code() {
      return `let result = turf.radiansToLength(${this.origin}, '${this.unit}');`;
    },
    dest() {
      return turf.radiansToLength(this.origin, this.unit);
    },
  },
};
</script>

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