世界坐标系和WGS84坐标系相互转换（2024-06-07）

---

WGS84弧度坐标系转世界坐标

const handelCartographic = ()=>{
    const a = new Cesium.Cartesian3.fromDegrees(104.1, 30.6, 200);
    console.log("世界坐标",a);
    const b = new Cesium.Cartographic.fromDegrees(104.1, 30.6, 200);
    console.log("WGS84弧度坐标系",b); 
    /* 方法一 */
    const c = new Cesium.Cartesian3.fromRadians(b.longitude,b.latitude,b.height)
    console.log("方法一WGS84弧度坐标系转世界坐标",c);
    /* 方法二 */
    const ellipsoid = window.viewer.scene.globe.ellipsoid; 
    const cartesian3 = ellipsoid.cartographicToCartesian(b);
    console.log("方法二WGS84弧度坐标系转世界坐标",cartesian3);

    // 方法三
    const d = new  Cesium.Cartographic.toCartesian(b)
    console.log('WGS84弧度坐标系转换为世界坐标',d);
  }

---

世界坐标转换为WGS84弧度坐标系

const handelCartographic = ()=>{
    const a = new Cesium.Cartesian3.fromDegrees(104.1, 30.6, 200);
    console.log("世界坐标",a);
    const b = new Cesium.Cartographic.fromDegrees(104.1, 30.6, 200);
    console.log("WGS84弧度坐标系",b); 
    const c = Cesium.Cartographic.fromCartesian(a)
    console.log('世界坐标转换为WGS84弧度坐标系',c);
  }

 

---

世界坐标转换为WGS84经纬度坐标系

const handelCartographic = ()=>{
    const ellipsoid = window.viewer.scene.globe.ellipsoid;  
    const a = new Cesium.Cartesian3.fromDegrees(104.1, 30.6, 200);
    console.log("世界坐标",a); 
    const cartographic = ellipsoid.cartesianToCartographic(a);
    console.log(cartographic);
    // toDegrees：将弧度转换为度数函数
    const lat = Cesium.Math.toDegrees(cartographic.latitude);
    const lng = Cesium.Math.toDegrees(cartographic.longitude);
    const alt = cartographic.height;
    console.log('世界坐标转换为经纬度',lat,lng,alt);
  }