GeographicProjection

GeographicProjection 是一个用于将经纬度（WGS84）坐标转换为笛卡尔坐标（x、y、z）的 CesiumJS 投影对象。

使用方法

导入 GeographicProjection

import { GeographicProjection } from "cesium";

或

<script src="https://cesium.com/downloads/cesiumjs/releases/1.83/Build/Cesium/Cesium.js"></script>

实例化 GeographicProjection

const geographicProjection = new GeographicProjection();

将经纬度转换为笛卡尔坐标

const longitude = -75.59777;
const latitude = 40.03883;
const height = 0;
const cartesian = geographicProjection.project(
  Cesium.Cartesian3.fromDegrees(longitude, latitude, height)
); // Cartesian3(-839184.3726153563, -4849129.465448539, 4073676.981600704)

将笛卡尔坐标转换为经纬度

const cartesian = Cesium.Cartesian3.fromDegrees(longitude, latitude, height);
const cartographic = geographicProjection.unproject(cartesian); // Cartographic {longitude: -75.59777, latitude: 40.03883, height: 0}

相关链接

• CesiumJS 投影文档
• CesiumJS 官网
• CesiumJS GitHub 仓库