Cessium调整模型的位置、高度、旋转

@param {Object} [params.rx] X轴（纬度）方向旋转角度（单位：度）* @param {Object} [params.ry] Y轴（纬度）方向旋转角度（单位：度）* @param {Object} [params.rz] Z轴（高程）方向旋转角度（单位：度）* @param {Object} [params.rx] X轴（纬度）方向旋转角度（单位：度）* @param {

L245953804

1267人浏览 · 2025-01-03 14:10:07

L245953804 · 2025-01-03 14:10:07 发布

第一种

/**
* 平移、贴地、旋转模型，白膜有效，倾斜摄影无效(目前只验证过cesiumlab处理的3dtiles数据，其他工具处理的数据有待验证。)
* @param {*} tileset
* @param {Object} [params] 对象有如下属性:
* @param {Object} [params.tx] 模型中心X轴坐标（经度，单位：十进制度）
* @param {Object} [params.ty] 模型中心Y轴坐标（纬度，单位：十进制度）
* @param {Object} [params.tz] 模型中心Z轴坐标（高程，单位：米）
* @param {Object} [params.rx] X轴（纬度）方向旋转角度（单位：度）
* @param {Object} [params.ry] Y轴（纬度）方向旋转角度（单位：度）
* @param {Object} [params.rz] Z轴（高程）方向旋转角度（单位：度）
*/
export function update3dtilesMaxtrix(tileset, params) {
//旋转
let mx = Cesium.Matrix3.fromRotationX(Cesium.Math.toRadians(params.rx));
let my = Cesium.Matrix3.fromRotationY(Cesium.Math.toRadians(params.ry));
let mz = Cesium.Matrix3.fromRotationZ(Cesium.Math.toRadians(params.rz));
let rotationX = Cesium.Matrix4.fromRotationTranslation(mx);
let rotationY = Cesium.Matrix4.fromRotationTranslation(my);
let rotationZ = Cesium.Matrix4.fromRotationTranslation(mz);
//平移
let position = Cesium.Cartesian3.fromDegrees(params.tx, params.ty, params.tz);
let m = Cesium.Transforms.eastNorthUpToFixedFrame(position);
//旋转、平移矩阵相乘
Cesium.Matrix4.multiply(m, rotationX, m);
Cesium.Matrix4.multiply(m, rotationY, m);
Cesium.Matrix4.multiply(m, rotationZ, m);
//赋值给tileset
tileset._root.transform = m;
}

第二种

// 缩放
var scale = Cesium.Matrix4.fromUniformScale(0.6)
Cesium.Matrix4.multiply(m, scale, m)

//https://hqcode.gitee.io/cesium-test/lesson03/
<!DOCTYPE html>
<html lang="en">

<head>
    
    <meta charset="utf-8">
    
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no">
    <title>Hello World!</title>
    <script src="../Build/Cesium/Cesium.js"></script>
    <style>
        @import url(../Build/CesiumUnminified/Widgets/widgets.css);
        html,
        body,
        #cesiumContainer {
            width: 100%;
            height: 100%;
            margin: 0;
            padding: 0;
            overflow: hidden;
        }
        .canvas {
        position: absolute;
        left: 10px;
        top: 10px;
        display:none;
    }
    #canvas-a {
        top: 10px;
    }
    #canvas-b {
        top: 120px;
    }
    </style>
</head>

<body>
    <button onClick ="rotatex()">rotatex</button>
    <button onClick ="rotatey()">rotatey</button>
    <button onClick ="rotatez()">rotatez</button>
    <div id="cesiumContainer" class="fullSize">
        <div id="cesiumxin" style="position:fixed;left:0;z-index:99"></div>
    </div>
    <div id="loadingOverlay"><h1>Loading...</h1></div>
    <div id="toolbar"></div>
    <script>
        var viewer = new Cesium.Viewer('cesiumContainer',
        {
            imageryProvider: new Cesium.SingleTileImageryProvider({
               url: '../img/worldimage.jpg'
            }),

            homeButton: false,
            //sceneModePicker: false,
            baseLayerPicker: false,
            navigationHelpButton: false,
            animation: false,
            timeline: false,
            vrButton: false，

fullscreenButton: false,
        });

        var tileset = viewer.scene.primitives.add(new Cesium.Cesium3DTileset({
            url : 'Tileset/tileset.json',
            modelMatrix:Cesium.Matrix4.IDENTITY
        }));

        tileset.readyPromise.then(function() {
            var boundingSphere = tileset.boundingSphere;
            viewer.camera.viewBoundingSphere(boundingSphere, new Cesium.HeadingPitchRange(0.0, -0.5, boundingSphere.radius * 2));
            viewer.camera.lookAtTransform(Cesium.Matrix4.IDENTITY);
        }).otherwise(function(error) {
            throw(error);
        });

var m = tileset.modelMatrix;

        var anglex = 1;
        function rotatex(){
            anglex += 1;
            let m1 = Cesium.Matrix3.fromRotationX(Cesium.Math.toRadians(anglex));
            tileset.modelMatrix = Cesium.Matrix4.multiplyByMatrix3(m,m1,new Cesium.Matrix4());
        }

        var angley = 1;
        function rotatey(){
            angley += 1;
            let m1 = Cesium.Matrix3.fromRotationY(Cesium.Math.toRadians(angley));
            tileset.modelMatrix = Cesium.Matrix4.multiplyByMatrix3(m,m1,new Cesium.Matrix4());
        }

        var anglez = 1;
        function rotatez(){
            anglez += 1;
            let m1 = Cesium.Matrix3.fromRotationZ(Cesium.Math.toRadians(anglez));
            tileset.modelMatrix = Cesium.Matrix4.multiplyByMatrix3(m,m1,new Cesium.Matrix4());
        }

</script>
</body>

</html>