• cesium 天地图叠加倾斜摄影


    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>国家地理信息公共服务平台 天地图</title>
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <meta http-equiv="X-UA-Compatible" content="IE=edge, chrome=1">
        <meta name="renderer" content="webkit">
        <meta http-equiv="Pragma" content="no-cache">
        <meta http-equiv="Cache-Control" content="no-cache">
        <meta http-equiv="Expires" content="0">
        <script src="./static/cesium/Cesium.js"></script>
        <script src="https://api.tianditu.gov.cn/cdn/plugins/cesium/cesiumTdt.js"></script>
        <link rel="stylesheet" type="text/css" href="./static/cesium/Widgets/widgets.css" />
        <style>
            html, body{
                width: 100%;
                height: 100%;
                margin: 0;
                padding: 0;
                overflow: hidden;
            }
    
            #cesiumContainer {
                width: 100%;
                height: 100%;
            }
    
            #cesiumContainer .cesium-viewer-bottom{
                display: none;
            }
        </style>
    </head>
    <body>
        <div id="cesiumContainer"></div>
        <script>
            var token = '';
        // 服务域名
        var tdtUrl = 'https://t{s}.tianditu.gov.cn/';
        // 服务负载子域
        var subdomains=['0','1','2','3','4','5','6','7'];
    
        // cesium 初始化
        var viewer = new Cesium.Map('cesiumContainer', {
            shouldAnimate: true,
            selectionIndicator:true,
            infoBox:false
        });
        
        // 抗锯齿
        viewer.scene.postProcessStages.fxaa.enabled=false;
        // 水雾特效
        viewer.scene.globe.showGroundAtmosphere = true;
        // 设置最大俯仰角,[-90,0]区间内,默认为-30,单位弧度
        viewer.scene.screenSpaceCameraController.constrainedPitch = Cesium.Math.toRadians(-20);
        // 取消默认的双击事件
        viewer.cesiumWidget.screenSpaceEventHandler.removeInputAction(Cesium.ScreenSpaceEventType.LEFT_DOUBLE_CLICK);
    
        // 叠加影像服务
        var imgMap = new Cesium.UrlTemplateImageryProvider({
            url: tdtUrl + 'DataServer?T=img_w&x={x}&y={y}&l={z}&tk=' + token,
            subdomains: subdomains,
            tilingScheme : new Cesium.WebMercatorTilingScheme(),
            maximumLevel : 18
        });
        viewer.imageryLayers.addImageryProvider(imgMap); 
    
        // 叠加国界服务
        var iboMap = new Cesium.UrlTemplateImageryProvider({
            url: tdtUrl + 'DataServer?T=ibo_w&x={x}&y={y}&l={z}&tk=' + token,
            subdomains: subdomains,
            tilingScheme : new Cesium.WebMercatorTilingScheme(),
            maximumLevel : 10
        });
        viewer.imageryLayers.addImageryProvider(iboMap);
    
        // 叠加地形服务
        var terrainUrls = new Array();
        
        for (var i = 0; i < subdomains.length; i++){
            var url = tdtUrl.replace('{s}', subdomains[i]) + 'DEM90M/DataServer?T=elv_c&tk=' + token;
            terrainUrls.push(url);
        }
    
        var provider = new Cesium.GeoTerrainProvider({
            urls: terrainUrls
        });
    
        viewer.terrainProvider = provider;
        
        // 将三维球定位到中国
        viewer.camera.flyTo({
           // destination: Cesium.Cartesian3.fromDegrees(103.84, 31.15, 17850000),
            destination: Cesium.Cartesian3.fromDegrees(113.79891698, 34.790739139999999, 17850000),
            orientation: {
                heading :  Cesium.Math.toRadians(348.4202942851978),
                pitch : Cesium.Math.toRadians(-89.74026687972041),
                roll : Cesium.Math.toRadians(0)
            },
            complete:function callback() {
                // 定位完成之后的回调函数
                viewer.camera.flyTo({
                    duration: 8,
                    destination: Cesium.Cartesian3.fromDegrees(113.79891698, 34.790739139999999, 5000.0),
                    orientation: {
                        heading: Cesium.Math.toRadians(0.0),
                        pitch: Cesium.Math.toRadians(-90.0),
                        roll: Cesium.Math.toRadians(0.0)
                    },
                    complete: function callback() {
                        // 叠加倾斜模型
                        // 
                        //       var x = 360.0;
                        // var y = -920.0;
                        // var z = -820.0;
                        // var x = 0;
                        // var y = 0;
                        // var z = 0;
                        // var m = Cesium.Matrix4.fromArray([
                        //     1.0, 0.0, 0.0, 0.0,
                        //     0.0, 1.0, 0.0, 0.0,
                        //     0.0, 0.0, 1.0, 0.0,
                        //     x, y, z, 1.0
                        // ]);
                        var tileset = viewer.scene.primitives.add(
                            new Cesium.Cesium3DTileset({
                                url: 'http://47.92.159.240:9025/oblique/build/dayanta/tileset.json',
                             
                                maximumScreenSpaceError: 2,
                                maximumNumberOfLoadedTiles: 1000,
                                // modelMatrix: m
                            })
                        );
                        //tileset.readyPromise
                        // .then(function () {
                        //viewer.zoomTo(tileset);
                        //});
    
                        //tileset.readyPromise
                        //.then(zoomToTileset);
                        ////////////////////////////////////////////////////////////
                        //控制模型的位置
                        tileset.readyPromise.then(function (palaceTileset) {
                            //alert(1);
                            //添加到场景
                            viewer.scene.primitives.add(palaceTileset);
                            var longitude = 113.79891698 //模型需要改变的经度
                            var latitude = 34.790739139999999 //模型需要改变的纬度
                            //var heightOffset = 20.0; //模型需要改变的高度
                            var heightOffset = 0; //模型需要改变的高度
    
                            //获取3Dtlies的bounds范围
                            var boundingSphere = palaceTileset.boundingSphere;
                            //获取3Dtlies的范围中心点的弧度
                            var cartographic = Cesium.Cartographic.fromCartesian(boundingSphere.center);
                            //定义3Dtlies改变之后中心点的弧度
                            var offsetvalue = Cesium.Cartographic.fromDegrees(longitude, latitude, heightOffset)
                            //模型本身的位置
                            var surface = Cesium.Cartesian3.fromRadians(cartographic.longitude, cartographic.latitude, 0.0);
                            //模型改变的位置
                            var offset = Cesium.Cartesian3.fromRadians(offsetvalue.longitude, offsetvalue.latitude, heightOffset);
    
                            //定义模型的改变状态
                            var translation = Cesium.Cartesian3.subtract(offset, surface, new Cesium.Cartesian3());
                            //修改模型的位置
                            palaceTileset.modelMatrix = Cesium.Matrix4.fromTranslation(translation);
                            viewer.zoomTo(palaceTileset, new Cesium.HeadingPitchRange(0.5, -0.2, palaceTileset.boundingSphere.radius *
                                1.0));
                            
                        });
                        /////////////////////////////////////////////////////////////
    
                    }
                });
                //结束
            }
        });
        
        // 叠加三维地名服务
        var wtfs = new Cesium.GeoWTFS({
            viewer,
            //三维地名服务,使用wtfs服务
            subdomains:subdomains,
            metadata:{
                boundBox: {
                    minX: -180,
                    minY: -90,
                    maxX: 180,
                    maxY: 90
                },
                minLevel: 1,
                maxLevel: 20
            },
            aotuCollide: true, //是否开启避让
            collisionPadding: [5, 10, 8, 5], //开启避让时,标注碰撞增加内边距,上、右、下、左
            serverFirstStyle: true, //服务端样式优先
            labelGraphics: {
                font:"28px sans-serif",
                fontSize: 28,
                fillColor:Cesium.Color.WHITE,
                scale: 0.5,
                outlineColor:Cesium.Color.BLACK,
                outlineWidth: 5,
                style:Cesium.LabelStyle.FILL_AND_OUTLINE,
                showBackground:false,
                backgroundColor:Cesium.Color.RED,
                backgroundPadding:new Cesium.Cartesian2(10, 10),
                horizontalOrigin:Cesium.HorizontalOrigin.MIDDLE,
                verticalOrigin:Cesium.VerticalOrigin.TOP,
                eyeOffset:Cesium.Cartesian3.ZERO,
                pixelOffset:new Cesium.Cartesian2(0, 8)
            },
            billboardGraphics: {
                horizontalOrigin:Cesium.HorizontalOrigin.CENTER,
                verticalOrigin:Cesium.VerticalOrigin.CENTER,
                eyeOffset:Cesium.Cartesian3.ZERO,
                pixelOffset:Cesium.Cartesian2.ZERO,
                alignedAxis:Cesium.Cartesian3.ZERO,
                color:Cesium.Color.WHITE,
                rotation:0,
                scale:1,
                18,
                height:18
            }
        });
        
        //三维地名服务,使用wtfs服务
        wtfs.getTileUrl = function(){
            return tdtUrl + 'mapservice/GetTiles?lxys={z},{x},{y}&tk='+ token; 
        }
        
        // 三维图标服务
        wtfs.getIcoUrl = function(){
            return tdtUrl + 'mapservice/GetIcon?id={id}&tk='+ token;
        }
        
            wtfs.initTDT([{ "x": 6, "y": 1, "level": 2, "boundBox": { "minX": 90, "minY": 0, "maxX": 135, "maxY": 45 } }, { "x": 7, "y": 1, "level": 2, "boundBox": { "minX": 135, "minY": 0, "maxX": 180, "maxY": 45 } }, { "x": 6, "y": 0, "level": 2, "boundBox": { "minX": 90, "minY": 45, "maxX": 135, "maxY": 90 } }, { "x": 7, "y": 0, "level": 2, "boundBox": { "minX": 135, "minY": 45, "maxX": 180, "maxY": 90 } }, { "x": 5, "y": 1, "level": 2, "boundBox": { "minX": 45, "minY": 0, "maxX": 90, "maxY": 45 } }, { "x": 4, "y": 1, "level": 2, "boundBox": { "minX": 0, "minY": 0, "maxX": 45, "maxY": 45 } }, { "x": 5, "y": 0, "level": 2, "boundBox": { "minX": 45, "minY": 45, "maxX": 90, "maxY": 90 } }, { "x": 4, "y": 0, "level": 2, "boundBox": { "minX": 0, "minY": 45, "maxX": 45, "maxY": 90 } }, { "x": 6, "y": 2, "level": 2, "boundBox": { "minX": 90, "minY": -45, "maxX": 135, "maxY": 0 } }, { "x": 6, "y": 3, "level": 2, "boundBox": { "minX": 90, "minY": -90, "maxX": 135, "maxY": -45 } }, { "x": 7, "y": 2, "level": 2, "boundBox": { "minX": 135, "minY": -45, "maxX": 180, "maxY": 0 } }, { "x": 5, "y": 2, "level": 2, "boundBox": { "minX": 45, "minY": -45, "maxX": 90, "maxY": 0 } }, { "x": 4, "y": 2, "level": 2, "boundBox": { "minX": 0, "minY": -45, "maxX": 45, "maxY": 0 } }, { "x": 3, "y": 1, "level": 2, "boundBox": { "minX": -45, "minY": 0, "maxX": 0, "maxY": 45 } }, { "x": 3, "y": 0, "level": 2, "boundBox": { "minX": -45, "minY": 45, "maxX": 0, "maxY": 90 } }, { "x": 2, "y": 0, "level": 2, "boundBox": { "minX": -90, "minY": 45, "maxX": -45, "maxY": 90 } }, { "x": 0, "y": 1, "level": 2, "boundBox": { "minX": -180, "minY": 0, "maxX": -135, "maxY": 45 } }, { "x": 1, "y": 0, "level": 2, "boundBox": { "minX": -135, "minY": 45, "maxX": -90, "maxY": 90 } }, { "x": 0, "y": 0, "level": 2, "boundBox": { "minX": -180, "minY": 45, "maxX": -135, "maxY": 90 } }]);
    
            function changeHeight(height) {
                height = Number(height);
                alert("我是changeHeight函数中的height:" + height);
                if (isNaN(height)) {
                    return;
                }
    
                var cartographic = Cesium.Cartographic.fromCartesian(tileset.boundingSphere.center);
                var surface = Cesium.Cartesian3.fromRadians(cartographic.longitude, cartographic.latitude, cartographic.height);
                var offset = Cesium.Cartesian3.fromRadians(cartographic.longitude, cartographic.latitude, height);
                var translation = Cesium.Cartesian3.subtract(offset, surface, new Cesium.Cartesian3());
                tileset.modelMatrix = Cesium.Matrix4.fromTranslation(translation);
            }
    
    
    </script>
    </body>
    </html>
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  • 原文地址:https://www.cnblogs.com/Jeely/p/14768017.html
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