Cesium 鍵盤操作修改模型矩陣，調整位置和角度

數據加載：

let models = viewer.scene.primitives.add(Cesium.Model.fromGltf({
        url: './tree/qtc1.gltf',
        modelMatrix: modelMatrixe,
        scale: 1,
        show: true,
        luminanceAtZenith: 0.8
    }))

模塊加載：

import { moveData } from "moveData.js";

moveData.moveData(models,Cesium);

 

操作模塊：

export const moveData = {};
moveData.moveData = function (models,Cesium) {
    document.onkeydown=function(event){
        let e = event || window.event || arguments.callee.caller.arguments[0];
        //位置
        if(e.key == 'ArrowUp'){
            models.modelMatrix[12]=models.modelMatrix[12]+1
        }else if(e.key == 'ArrowDown'){
            models.modelMatrix[12]=models.modelMatrix[12]-1
        }else if(e.key == 'ArrowLeft'){
            models.modelMatrix[14]=models.modelMatrix[14]+1
        }else if(e.key == 'ArrowRight'){
            models.modelMatrix[14]=models.modelMatrix[14]-1
        }
        //角度
        else if(e.key == '8'){
            m1=Cesium.Matrix3.fromRotationZ(Cesium.Math.toRadians(1))
            Cesium.Matrix4.multiplyByMatrix3(models.modelMatrix, m1, models.modelMatrix);
        }else if(e.key == '2'){
            m1=Cesium.Matrix3.fromRotationZ(Cesium.Math.toRadians(-1))
            Cesium.Matrix4.multiplyByMatrix3(models.modelMatrix, m1, models.modelMatrix);
        }else if(e.key == '4'){
            m1 = Cesium.Matrix3.fromRotationY(Cesium.Math.toRadians(1));
            Cesium.Matrix4.multiplyByMatrix3(models.modelMatrix, m1, models.modelMatrix);
        }else if(e.key == '6'){
            m1 = Cesium.Matrix3.fromRotationY(Cesium.Math.toRadians(-1));
            Cesium.Matrix4.multiplyByMatrix3(models.modelMatrix, m1, models.modelMatrix);
        }else if(e.key === '1'){
            m1 = Cesium.Matrix3.fromRotationX(Cesium.Math.toRadians(1));
            Cesium.Matrix4.multiplyByMatrix3(models.modelMatrix, m1, models.modelMatrix);
        }else if(e.key == '3'){
            m1 = Cesium.Matrix3.fromRotationX(Cesium.Math.toRadians(-1));
            Cesium.Matrix4.multiplyByMatrix3(models.modelMatrix, m1, models.modelMatrix);
        }
        //高度
        else if(e.key == '7'){
            models.modelMatrix[13]=models.modelMatrix[13]+1
        }
        else if(e.key == '9'){
            models.modelMatrix[13]=models.modelMatrix[13]-1
        }
        console.log(models.modelMatrix)
    }
}