RotationPrimitive

RotationPrimitive

new Cesium.RotationPrimitive(options)
ZYWebGL/Scene/RotationPrimitive.js 70

旋转坐标轴对象.支持鼠标交互式旋转模型对象，理论上可以支持Cesium支持modelMatrix的渲染对象.比如primitive

Name Type Description

options

Object

Name	Type	Default	Description
`scene`	Scene		Scene.
`model`	Model \| Primitive		Model
`show`	Boolean	`true`	optional 是否显示..

Example:

let rotationprimitve;

// primitive添加模型
const position = Cesium.Cartesian3.fromDegrees(117.0744619, 39.0503706, 0);
const modelMatrix = Cesium.Transforms.eastNorthUpToFixedFrame(position, Cesium.Ellipsoid.WGS84);

// primitive添加模型
const tempAddedModel = viewer.scene.primitives.add(Cesium.Model.fromGltf({
   url : "../../../Bus.glb",
   modelMatrix : modelMatrix,
 }));

const rotated = {
   x : 0,
   y : 0,
   z : 0
 };
// 回调事件 打印轴向上的旋转角度
function callbackForLog(radians, newModelMatrix) {
   rotated[rotationprimitve.rotateAxis] += radians;
   console.log('模型以' + rotationprimitve.rotateAxis + "轴旋转,角度是" + Cesium.Math.toDegrees(rotated[rotationprimitve.rotateAxis]));
   console.log("新的模型矩阵是");
   console.dir(newModelMatrix);
 }

// 模型准备好了以后再创建 rotationprimitve
tempAddedModel.readyPromise.then(function(tempAddedModel) {

   rotationprimitve = new Cesium.RotationPrimitive({
     scene : viewer.scene,
     model : tempAddedModel
   })
   // 添加回调事件
   rotationprimitve.rotateEvent.addEventListener(callbackForLog);
 });