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  • Cesiumjs

    2019-12-18 09:28:35
    scaleByDistance: new Cesium.NearFarScalar(近值,近端放大率,远值,远端放大率) 如果距离在近值和远值之间,放大缩小倍数在两个放大率之间递增,如果超出这个范围则不改变。 2.设置摄像机指定距离可见性 ...

    1.标注字体

    scaleByDistance: new Cesium.NearFarScalar(近值,近端放大率,远值,远端放大率)

    如果距离在近值和远值之间,放大缩小倍数在两个放大率之间递增,如果超出这个范围则不改变。

    2.设置摄像机指定距离可见性

    distanceDisplayCodition:new Cesium.DisplayCodition(近值,远值)

    如果在摄像机在近值和远值之间,可见。

    3.判断是否能够拾取

    pickPositionSupported

    scene:

    pick

    pickPosition

    drillPick获取全部实体,然后循环获取

    camera:

    getPickPay

    pickEllipsoid

    globel:

    pick

    4.常用坐标系

    平面坐标系:Cartesian2

    笛卡尔空间直角坐标系:Cartesian3

    地理坐标系下经纬度的弧度:Cartographic

    5.ClassificationType()

    Cesium.ClassificationType.BOTH 地形和3D瓦片都会被分类

    Cesium.ClassificationType.CESIUM_3D_TILE 仅3D瓦片被分类

    Cesium.ClassificationType.TERRAIN 仅地形被分类

     

     

     

    //解除左键双击事件
    try {
                viewer.screenSpaceEventHandler.removeInputAction(Cesium.ScreenSpaceEventType.LEFT_DOUBLE_CLICK);
    
            } catch (e) {
                console.error(e);
            }

     

    展开全文
  • cesiumjs

    2019-01-24 12:12:00
    https://cesiumjs.org/Cesium/ 论坛 http://cesium.coinidea.com/ 中文网 http://cesium.xin/ 博客园相关文章 https://www.cnblogs.com/mazhenyu/p/6494748.html http://www.cnblogs.com/hu...
    展开全文
  • CesiumJS

    2020-09-01 15:40:23
    CesiumJS CesiumJS is an open source JavaScript library for creating world-class 3D globes and maps with the best possible performance, precision, visual quality, and ease of use. Developers across ...

    CesiumJS

    CesiumJS is an open source JavaScript library for creating world-class 3D globes and maps with the best possible performance, precision, visual quality, and ease of use. Developers across industries, from aerospace to smart cities to drones, use CesiumJS to create interactive web apps for sharing dynamic geospatial data.

    Built on open formats, CesiumJS is designed for robust interoperability. Bring in data from Cesium ion or from some other source, visualize with CesiumJS, and share with users on desktop or mobile. With more than 1,000,000 downloads, CesiumJS powers apps that reach millions of users.

    CesiumJS is released under the Apache 2.0 license and is free for both commercial and non-commercial use. Read about how we build with open source.

    展开全文
  • CesiumJs+ThreeJs实测

    万次阅读 2019-04-01 10:55:36
    这篇帖子讲述了如何将cesium和threejs结合,但是如果跟着代码敲一遍,会发现并不能加载出threejs的模型。仔细跟着写了编,把遇到的坑做一下说明。 1.要注意threejs的版本。文中所用为r87版的threejs,尝试换成r92,...

    原帖:https://blog.csdn.net/zhishiqu/article/details/79077883
    跟着原贴做了一下three和cesium 的结合,代码稍微改动了点,记录一下。完整代码附在最后。
    思路:
    1.要把cesiumjs和threejs的场景同时显示,所以需要创建两个容器,分别用于显示cesium的场景和three的场景,两个场景要重合;
    2.将cesium和three的渲染频率调成一致;
    3.将cesium和three的相机位置角度等调成一致。
    4.将three里的图形位置调整为在地球表面
    具体实现:
    1.初始化cesium
    cesium初始化时,要将它的自动渲染关掉(即useDefaultRenderLoop属性调整为false)

                cesium.viewer = new Cesium.Viewer("cesiumContainer", {
                    useDefaultRenderLoop: false,           //关闭自动渲染
                    selectionIndicator: false,
                    homeButton: false,
                    sceneModePicker: false,
                    navigationHelpButton: false,
                    animate: false,
                    timeline: false,
                    fullscreenButton: false,
                    navigationInstructionsInitiallyVisible: false,
                    allowTextureFilterAnisotropic: false,
                    contextOptions: {
                        webgl: {
                            alpha: false,
                            antialias: true,
                            preserveDrawingBuffer: true,
                            failIfMajorPerformanceCaveat: false,
                            depth: true,
                            stencil: false,
                            anialias: false
                        }
                    },
                    targetFrameRate: 60,
                    resolutionScale: 0.1,
                    orderIndependentTranslucency: true,
                    // creditContainer:"CreditDisplay",
                    // imageeryProvider: googlemap,   //谷歌地图
                    baseLayerPicker: true,
                    geocoder: false,
                    automaticallyTrackDataSourceClocks: false,
                    dataSources: null,
                    clock: null,
                    terrainShadows: Cesium.ShadowMode.DISABLED
                });
    

    2.初始化three

               let fov = 45;
                let width = window.innerWidth;
                let height = window.innerHeight;
                let aspect = width / height;
                let near = 1;
                let far = 10 * 1000 * 1000; // needs to be far to support Cesium's world-scale rendering
    
                three.scene = new THREE.Scene();
                three.camera = new THREE.PerspectiveCamera(fov, aspect, near, far);
                three.renderer = new THREE.WebGLRenderer({ alpha: true });
                // let axis=new THREE.AxesHelper(1000*1000*1000);
                // three.scene.add(axis);
                ThreeContainer.appendChild(three.renderer.domElement);
    

    3.调整three和cesium的渲染频率
    手动开启cesium和three的渲染,并放进一个渲染频率里。

      function loop() {
                requestAnimationFrame(loop);
                renderCesium();  //渲染cesium
                renderThree();   //渲染three
            }
    
            function renderCesium() {
                cesium.viewer.render();
            }
    
            function renderThree() {
               var width = ThreeContainer.clientWidth;
                var height = ThreeContainer.clientHeight;
                three.renderer.setSize(width, height);
                three.renderer.render(three.scene, three.camera);
            }
    

    4.调整相机一致
    这里使用的cesium的相机为主相机,使three的相机与cesium保持一致即可。
    由于相机的位置一直在变换,所以讲相机位置调整放进每一帧的渲染中。

            function renderCamera(){
                // register Three.js scene with Cesium
                three.camera.fov = Cesium.Math.toDegrees(cesium.viewer.camera.frustum.fovy) // ThreeJS FOV is vertical
                three.camera.updateProjectionMatrix();
               
                // Clone Cesium Camera projection position so the
                // Three.js Object will appear to be at the same place as above the Cesium Globe
    
                three.camera.matrixAutoUpdate = false;
                var cvm = cesium.viewer.camera.viewMatrix;
                var civm = cesium.viewer.camera.inverseViewMatrix;
                three.camera.matrixWorld.set(
                    civm[0], civm[4], civm[8], civm[12],
                    civm[1], civm[5], civm[9], civm[13],
                    civm[2], civm[6], civm[10], civm[14],
                    civm[3], civm[7], civm[11], civm[15]
                );
                three.camera.matrixWorldInverse.set(
                    cvm[0], cvm[4], cvm[8], cvm[12],
                    cvm[1], cvm[5], cvm[9], cvm[13],
                    cvm[2], cvm[6], cvm[10], cvm[14],
                    cvm[3], cvm[7], cvm[11], cvm[15]
                );
                three.camera.lookAt(new THREE.Vector3(0, 0, 0));
    
                var width = ThreeContainer.clientWidth;
                var height = ThreeContainer.clientHeight;
                var aspect = width / height;
                three.camera.aspect = aspect;
                three.camera.updateProjectionMatrix();
            }
    

    5.加入要展示的图形
    这里加入一个cesium的图形polygon,再加入一个three的球体,以及一个three的12面体。
    cesium是y朝上,three是z朝上,所以要进行坐标的变换,使three也变成y朝上。其次,three的图形要想放置在地球表面,需要z轴指向天空,垂直于地球表面,我们需要调整three图形的方向。方便起见,我们创建一个组group,将所有加入的three的图形都放进这个group中,然后对group进行位置变换。
    需要注意的是,three中添加的球体需要加入光源才能看到,否则只能看到一个黑色的球体,我们把光源一同放入group中,确保光源的位置足以照射到球体。

     function _3DObject() {
         this.threeMesh = null;
         this.minWGS84 = null;
         this.maxWGS84 = null;
     }
      function init3DObject() {
         let entity = {
                    name: 'Polygon',
                    polygon: {
                        hierarchy: Cesium.Cartesian3.fromDegreesArray([
                            minWGS84[0], minWGS84[1],
                            maxWGS84[0], minWGS84[1],
                            maxWGS84[0], maxWGS84[1],
                            minWGS84[0], maxWGS84[1]
                        ]),
                        material: Cesium.Color.RED.withAlpha(0.1)
                    }
                }
         let Polypon = cesium.viewer.entities.add(entity);
         let doubleSideMaterial = new THREE.MeshNormalMaterial({
             side: THREE.DoubleSide
         });
    
         geometry = new THREE.SphereGeometry(1, 32, 32);
         let sphere = new THREE.Mesh(geometry, new THREE.MeshPhongMaterial({ color: 0xffffff, side: THREE.DoubleSide }));   //12面体
         // sphere.scale.set(5000,5000,5000);
         // sphere.position.z+=15000;
         // translate "up" in Three.js space so the "bottom" of the mesh is the handle
         sphere.scale.set(5000, 5000, 5000);
         sphere.uuid = "sphere";
         var sphereYup = new THREE.Group();
         sphereYup.add(sphere)
         three.scene.add(sphereYup); // don’t forget to add it to the Three.js scene manually
         sphereYup.position.set(ce.x, ce.y, ce.z);
         _3DOB = new _3DObject();
         _3DOB.threeMesh = sphereYup;
         _3DOB.minWGS84 = minWGS84;
         _3DOB.maxWGS84 = maxWGS84;
         _3Dobjects.push(_3DOB);
         geometry=new THREE.DodecahedronGeometry();
         let dodecahedronMesh=new THREE.Mesh(geometry,new THREE.MeshNormalMaterial());   //12面体
         dodecahedronMesh.scale.set(5000,5000,5000);
         dodecahedronMesh.position.z+=15000;
         // translate "up" in Three.js space so the "bottom" of the mesh is the handle
         dodecahedronMesh.rotation.x = Math.PI / 2; // rotate mesh for Cesium's Y-up system
         dodecahedronMesh.uuid="12面体";
         var dodecahedronMeshYup = new THREE.Group();
         dodecahedronMeshYup.add(dodecahedronMesh)
         three.scene.add(dodecahedronMeshYup); // don’t forget to add it to the Three.js scene manually
         dodecahedronMeshYup.position.set(ce.x,ce.y,ce.z);
         //    Assign Three.js object mesh to our object array
          _3DOB = new _3DObject();
          _3DOB.threeMesh = dodecahedronMeshYup;
          _3DOB.minWGS84 = minWGS84;
          _3DOB.maxWGS84 = maxWGS84;
          _3Dobjects.push(_3DOB);
         //添加灯光
         //添加点光源
         var spotLight = new THREE.SpotLight(0xffffff);
         spotLight.position.set(0,0,50000);
         spotLight.castShadow = true; //设置光源投射阴影
         spotLight.intensity = 1;
         sphereYup.add(spotLight)
         //添加环境光
         var hemiLight = new THREE.HemisphereLight(0xff0000, 0xff0000, 1);
         sphereYup.add(hemiLight);
         var cartToVec = function (cart) {
             return new THREE.Vector3(cart.x, cart.y, cart.z);
         };
         // // Configure Three.js meshes to stand against globe center position up direction
         for (id in _3Dobjects) {
             minWGS84 = _3Dobjects[id].minWGS84;
             maxWGS84 = _3Dobjects[id].maxWGS84;
             // convert lat/long center position to Cartesian3
             var center = Cesium.Cartesian3.fromDegrees((minWGS84[0] + maxWGS84[0]) / 2, (minWGS84[1] + maxWGS84[1]) / 2);
    
             // get forward direction for orienting model
             var centerHigh = Cesium.Cartesian3.fromDegrees((minWGS84[0] + maxWGS84[0]) / 2, (minWGS84[1] + maxWGS84[1]) / 2, 1);
    
             // use direction from bottom left to top left as up-vector
             var bottomLeft = cartToVec(Cesium.Cartesian3.fromDegrees(minWGS84[0], minWGS84[1]));
             var topLeft = cartToVec(Cesium.Cartesian3.fromDegrees(minWGS84[0], maxWGS84[1]));
             var latDir = new THREE.Vector3().subVectors(bottomLeft, topLeft).normalize();
    
             // configure entity position and orientation
             _3Dobjects[id].threeMesh.position.copy(center);
             _3Dobjects[id].threeMesh.lookAt(centerHigh);
             _3Dobjects[id].threeMesh.up.copy(latDir);
         }
     }
    

    效果如下图:
    在这里插入图片描述
    在这里插入图片描述
    遇到的坑:
    1.要注意threejs的版本。文中所用为r87版的threejs,尝试换成r92,r103,都找不到模型,这个问题后续再探究一下是为什么。
    2.关于three的模型在cesium中的位置变幻:
    文中设置了一个最大坐标和最小坐标,位置如图:
    根据最大最小坐标绘制的polygon

    位置变换前three的坐标系如图(红色为x轴,绿色为y轴,蓝色为z轴):

    在这里插入图片描述
    在这里插入图片描述
    进行位置变化后:
    在这里插入图片描述
    4.关于自己的模型变黑:加载帖子中的两个自建模型,颜色是很明显的彩色,如图所示:
    在这里插入图片描述
    加载其他自建模型或其他导入的模型,则是如图:
    在这里插入图片描述
    原因是threejs渲染器中并没有加灯光进去,加上灯光就好了。
    完整代码:

    <!DOCTYPE html>
    <html lang="en">
    
    <head>
        <meta charset="UTF-8">
        <title>three and cesium</title>
        <script src="./js/Cesium/Cesium.js"></script>
        <script src="./js/threer69.js"></script>
    </head>
    
    <body>
        <div id="cesiumContainer"></div>
        <div id="ThreeContainer"></div>
    
        <style>
            @import url(./js/Cesium/Widgets/widgets.css);
    
            body {
                height: 100%;
                width: 100%;
                margin: 0;
                overflow: hidden;
                padding: 0;
                background: #000;
            }
    
            #cesiumContainer {
                position: absolute;
                top: 0;
                left: 0;
                height: 100%;
                width: 100%;
                margin: 0;
                overflow: hidden;
                padding: 0;
                font-family: sans-serif;
            }
    
            #ThreeContainer {
                position: absolute;
                top: 0;
                left: 0;
                height: 100%;
                width: 100%;
                margin: 0;
                overflow: hidden;
                padding: 0;
                font-family: sans-serif;
                pointer-events: none;
            }
    
            .fullWindow {
                position: absolute;
                top: 0;
                left: 0;
                height: 100%;
                width: 100%;
                margin: 0;
                overflow: hidden;
                padding: 0;
                font-family: sans-serif;
            }
    
            .loadingIndicator {
                display: block;
                position: absolute;
                top: 50%;
                left: 50%;
                margin-top: -33px;
                margin-left: -33px;
                width: 66px;
                height: 66px;
                background-position: center;
                background-repeat: no-repeat;
                background-image: url(Images/ajax-loader.gif);
            }
        </style>
        <script>
            //cesium
    
            let minWGS84 = [115.23, 39.55];
            let maxWGS84 = [116.23, 41.55];
            let cesiumContainer = document.getElementById("cesiumContainer");
            let ThreeContainer = document.getElementById("ThreeContainer");
            let _3Dobjects = [];
            let three = {
                renderer: null,
                camera: null,
                scene: null
            };
            let cesium = {
                viewer: null
            }
            main();
            function main() {
                initCesium();
                initThree();
                init3DObject();
                loop();
            }
            function initCesium() {
                let esri = new Cesium.ArcGisMapServerImageryProvider({
                    url: 'https://services.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer'
                });
                var googlemap = new Cesium.UrlTemplateImageryProvider(
                    {
                        url: 'http://mt1.google.cn/vt/lyrs=s&hl=zh-CN&x={x}&{x}&y={y}&z={z}&s=Gali'
                    })
                cesium.viewer = new Cesium.Viewer("cesiumContainer", {
                    useDefaultRenderLoop: false,
                    selectionIndicator: false,
                    homeButton: false,
                    sceneModePicker: false,
                    navigationHelpButton: false,
                    animate: false,
                    timeline: false,
                    fullscreenButton: false,
                    navigationInstructionsInitiallyVisible: false,
                    allowTextureFilterAnisotropic: false,
                    contextOptions: {
                        webgl: {
                            alpha: false,
                            antialias: true,
                            preserveDrawingBuffer: true,
                            failIfMajorPerformanceCaveat: false,
                            depth: true,
                            stencil: false,
                            anialias: false
                        }
                    },
                    targetFrameRate: 60,
                    resolutionScale: 0.1,
                    orderIndependentTranslucency: true,
                    // creditContainer:"CreditDisplay",
                    // imageeryProvider: googlemap,   //谷歌地图
                    baseLayerPicker: true,
                    geocoder: false,
                    automaticallyTrackDataSourceClocks: false,
                    dataSources: null,
                    clock: null,
                    terrainShadows: Cesium.ShadowMode.DISABLED
                });
                let center = Cesium.Cartesian3.fromDegrees(
                    (minWGS84[0] + maxWGS84[0]) / 2,
                    ((minWGS84[1] + maxWGS84[1]) / 2) - 1,
                    200000
                );
                ce = center;
                cesium.viewer.camera.flyTo({
                    destination: center,
                    orientation: {
                        heading: Cesium.Math.toRadians(0),
                        pitch: Cesium.Math.toRadians(-60),
                        roll: Cesium.Math.toRadians(0)
                    },
                    duration: 3
                });
            }
            function initThree() {
                let fov = 45;
                let width = window.innerWidth;
                let height = window.innerHeight;
                let aspect = width / height;
                let near = 1;
                let far = 10 * 1000 * 1000; // needs to be far to support Cesium's world-scale rendering
                three.scene = new THREE.Scene();
                three.camera = new THREE.PerspectiveCamera(fov, aspect, near, far);
                three.renderer = new THREE.WebGLRenderer({ alpha: true });
                // let axis=new THREE.AxesHelper(1000*1000*1000);
                // three.scene.add(axis);
                ThreeContainer.appendChild(three.renderer.domElement);
            }
            function init3DObject() {
                let entity = {
                    name: 'Polygon',
                    polygon: {
                        hierarchy: Cesium.Cartesian3.fromDegreesArray([
                            minWGS84[0], minWGS84[1],
                            maxWGS84[0], minWGS84[1],
                            maxWGS84[0], maxWGS84[1],
                            minWGS84[0], maxWGS84[1]
                        ]),
                        material: Cesium.Color.RED.withAlpha(0.1)
                    }
                }
                let Polypon = cesium.viewer.entities.add(entity);
                let doubleSideMaterial = new THREE.MeshNormalMaterial({
                    side: THREE.DoubleSide
                });
    
                geometry = new THREE.SphereGeometry(1, 32, 32);
                let sphere = new THREE.Mesh(geometry, new THREE.MeshPhongMaterial({ color: 0xffffff, side: THREE.DoubleSide }));   //12面体
                // sphere.scale.set(5000,5000,5000);
                // sphere.position.z+=15000;
                // translate "up" in Three.js space so the "bottom" of the mesh is the handle
                sphere.scale.set(5000, 5000, 5000);
                sphere.uuid = "sphere";
                var sphereYup = new THREE.Group();
                sphereYup.add(sphere)
                three.scene.add(sphereYup); // don’t forget to add it to the Three.js scene manually
                sphereYup.position.set(ce.x, ce.y, ce.z);
                _3DOB = new _3DObject();
                _3DOB.threeMesh = sphereYup;
                _3DOB.minWGS84 = minWGS84;
                _3DOB.maxWGS84 = maxWGS84;
                _3Dobjects.push(_3DOB);
                geometry = new THREE.DodecahedronGeometry();
                let dodecahedronMesh = new THREE.Mesh(geometry, new THREE.MeshNormalMaterial());   //12面体
                dodecahedronMesh.scale.set(5000, 5000, 5000);
                dodecahedronMesh.position.z += 15000;
                // translate "up" in Three.js space so the "bottom" of the mesh is the handle
                dodecahedronMesh.rotation.x = Math.PI / 2; // rotate mesh for Cesium's Y-up system
                dodecahedronMesh.uuid = "12面体";
                var dodecahedronMeshYup = new THREE.Group();
                dodecahedronMeshYup.add(dodecahedronMesh)
                three.scene.add(dodecahedronMeshYup); // don’t forget to add it to the Three.js scene manually
                dodecahedronMeshYup.position.set(ce.x, ce.y, ce.z);
                //    Assign Three.js object mesh to our object array
                _3DOB = new _3DObject();
                _3DOB.threeMesh = dodecahedronMeshYup;
                _3DOB.minWGS84 = minWGS84;
                _3DOB.maxWGS84 = maxWGS84;
                _3Dobjects.push(_3DOB);
                //添加灯光
                //添加点光源
                var spotLight = new THREE.SpotLight(0xffffff);
                spotLight.position.set(0, 0, 50000);
                spotLight.castShadow = true; //设置光源投射阴影
                spotLight.intensity = 1;
                sphereYup.add(spotLight)
                //添加环境光
                var hemiLight = new THREE.HemisphereLight(0xff0000, 0xff0000, 1);
                sphereYup.add(hemiLight);
                var cartToVec = function (cart) {
                    return new THREE.Vector3(cart.x, cart.y, cart.z);
                };
                // // Configure Three.js meshes to stand against globe center position up direction
                for (id in _3Dobjects) {
                    minWGS84 = _3Dobjects[id].minWGS84;
                    maxWGS84 = _3Dobjects[id].maxWGS84;
                    // convert lat/long center position to Cartesian3
                    var center = Cesium.Cartesian3.fromDegrees((minWGS84[0] + maxWGS84[0]) / 2, (minWGS84[1] + maxWGS84[1]) / 2);
    
                    // get forward direction for orienting model
                    var centerHigh = Cesium.Cartesian3.fromDegrees((minWGS84[0] + maxWGS84[0]) / 2, (minWGS84[1] + maxWGS84[1]) / 2, 1);
    
                    // use direction from bottom left to top left as up-vector
                    var bottomLeft = cartToVec(Cesium.Cartesian3.fromDegrees(minWGS84[0], minWGS84[1]));
                    var topLeft = cartToVec(Cesium.Cartesian3.fromDegrees(minWGS84[0], maxWGS84[1]));
                    var latDir = new THREE.Vector3().subVectors(bottomLeft, topLeft).normalize();
    
                    // configure entity position and orientation
                    _3Dobjects[id].threeMesh.position.copy(center);
                    _3Dobjects[id].threeMesh.lookAt(centerHigh);
                    _3Dobjects[id].threeMesh.up.copy(latDir);
                }
            }
            function _3DObject() {
                this.threeMesh = null;
                this.minWGS84 = null;
                this.maxWGS84 = null;
            }
    
            function loop() {
                requestAnimationFrame(loop);
                renderCesium();
                renderThreeObj();
                renderCamera();
            }
    
            function renderCesium() {
                cesium.viewer.render();
            }
    
            function renderThreeObj() {
                var width = ThreeContainer.clientWidth;
                var height = ThreeContainer.clientHeight;
                three.renderer.setSize(width, height);
                three.renderer.render(three.scene, three.camera);
    
            }
            function renderCamera() {
                // register Three.js scene with Cesium
                three.camera.fov = Cesium.Math.toDegrees(cesium.viewer.camera.frustum.fovy) // ThreeJS FOV is vertical
                three.camera.updateProjectionMatrix();
    
                // Clone Cesium Camera projection position so the
                // Three.js Object will appear to be at the same place as above the Cesium Globe
    
                three.camera.matrixAutoUpdate = false;
                var cvm = cesium.viewer.camera.viewMatrix;
                var civm = cesium.viewer.camera.inverseViewMatrix;
                three.camera.matrixWorld.set(
                    civm[0], civm[4], civm[8], civm[12],
                    civm[1], civm[5], civm[9], civm[13],
                    civm[2], civm[6], civm[10], civm[14],
                    civm[3], civm[7], civm[11], civm[15]
                );
                three.camera.matrixWorldInverse.set(
                    cvm[0], cvm[4], cvm[8], cvm[12],
                    cvm[1], cvm[5], cvm[9], cvm[13],
                    cvm[2], cvm[6], cvm[10], cvm[14],
                    cvm[3], cvm[7], cvm[11], cvm[15]
                );
                three.camera.lookAt(new THREE.Vector3(0, 0, 0));
    
                var width = ThreeContainer.clientWidth;
                var height = ThreeContainer.clientHeight;
                var aspect = width / height;
                three.camera.aspect = aspect;
                three.camera.updateProjectionMatrix();
            }
    
        </script>
    </body>
    
    </html>
    
    展开全文
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    2018-04-08 21:17:52
    Windows 下安装CesiumJS 在CesiumJS官网下载https://cesiumjs.org/downloads/。将下载好的Cesium-.zip压缩包,解压到你需要放置的目录下面。下载Node.js做为我们本地的服务器。https://nodejs.org/en/下载好的node ...
  • CesiumJS1.6

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    官网上的CesiumJS1.6下载很慢,所以我这里弄了一个网盘地址: 链接:https://pan.baidu.com/s/11nR7J5RUQRAux2Igaczt7Q 提取码:nd3j
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  • CesiumJS环境搭建

    千次阅读 2018-01-17 16:59:23
    首先你要下载Cesium (当前版本1.41,下载地址:https://cesiumjs.org/downloads/) 和NodeJS安装包,(当前9.3.0, 下载地址:https://nodejs.org/en/)   二 搭建WEB服务器 这里有两种方法,一种是官网引导教程中...
  • CesiumJS进阶攻略之初识Cesium 一.什么是Cesium? Cesium是一个javascript库,所以它的全面其实叫做Cesium JS,Cesium是开放源代码的,任何个人和企业都可以免费使用。 对于Cesium的用途,一句话足以说明问题:用来...
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    摘要 Cesiumjs 是一套javascript库,用来渲染3D地球,2D区域地图,和多种GIS要素。不需要安装任何插件就能在支持最新HTML5标准的浏览器上运行。支持WebGL硬件加速,非常适合动态数据在GIS图层上的展示,是一个跨...
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