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map.js
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map.js
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// var local_ip = "192.168.0.107"; //局域网上的本机IP地址，若发布至互联网后，填写公网ip
// var local_ip = "localhost";
var local_ip = "www.skylight.xin";
function getQueryVariable(variable) {
const query = window.location.search.substring(1);
const vars = query.split("&");
for (let i = 0; i < vars.length; i++) {
const pair = vars[i].split("=");
if (pair[0] == variable) {
return pair[1];
}
}
return '';
}
function QueryToJSON() {
const query = window.location.search.substring(1);
var vars = query.split("&");
var json = {};
for (let i = 0; i < vars.length; i++) {
const pair = vars[i].split("=");
json[pair[0]] = pair[1];
}
return json;
}
var MapControl = function (opts) {
var me = this;
me.opts = $.extend(true, {//opts中的配置会覆盖以下默认配置
cesium_container: "cesium_container",
toolbar_container: "toolbar_1",
view_center: [105, 35, 15000000],
home_orientation: {
heading: 0,
pitch: -90,
roll: 0
},
point_orientation: {
heading: 0,
pitch: -45,
roll: 0
},
altitude_range: {
min: 0.0,
max: 8848.0
},
model: "",
is_global: true,
show_atmosphere: true,
enable_light: false,
cesium_access_token: "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiIzNTYyZmIwOC00MDVhLTRlODEtYTRmYS1lZGU4YjhmMWJlZDIiLCJpZCI6NDUxNTksImlhdCI6MTYyNjkzNTA4NH0.WG1cA1YXgEQFE4Dw7aGdailrJaxSRaRuLsRsfoyhbik"
}, opts);
me.pathpoints = Array();
me.home_orientation = {
// 指向
heading: Cesium.Math.toRadians(me.opts.home_orientation.heading),
// 视角
pitch: Cesium.Math.toRadians(me.opts.home_orientation.pitch),
roll: Cesium.Math.toRadians(me.opts.home_orientation.roll)
}
me.point_orientation = {
// 指向
heading: Cesium.Math.toRadians(me.opts.point_orientation.heading),
// 视角
pitch: Cesium.Math.toRadians(me.opts.point_orientation.pitch),
roll: Cesium.Math.toRadians(me.opts.point_orientation.roll)
}
me.read_query();
me.init();
me.contour_init();
me.search_init();
};
MapControl.prototype.read_query = function () {
var me = this;
var query = QueryToJSON();
if (query["data"]) {
me.path_polyline = JSON.parse(atob(query["data"]));
}
}
MapControl.prototype.set_query = function () {
var me = this;
}
MapControl.prototype.init = function () {
var me = this;
var tianditu_token = 'c23af70822a130e1822f8464dd6e9fd6'
var mapbox_token = 'pk.eyJ1IjoiZ3dpbmc5NyIsImEiOiJja251ZG5uNmswYTZlMnhvend0ejRpZHExIn0.krjMt87hQNfv3NGzyYvhng'
// 服务域名
var tdtUrl = 'https://t{s}.tianditu.gov.cn/'
// 服务负载子域
var img_tianditu_rs = new Cesium.ProviderViewModel({
name: "天地图",
tooltip: "天地图",
iconUrl: "images/tianditu.png",
creationFunction: function () {
var subdomains = ['0', '1', '2', '3', '4', '5', '6', '7']
var providers = Array()
providers.push(new Cesium.UrlTemplateImageryProvider({
url: tdtUrl + 'DataServer?T=img_w&x={x}&y={y}&l={z}&tk=' + tianditu_token,
subdomains: subdomains,
tilingScheme: new Cesium.WebMercatorTilingScheme(),
maximumLevel: 18
}))
providers.push(new Cesium.UrlTemplateImageryProvider({
url: tdtUrl + 'DataServer?T=ibo_w&x={x}&y={y}&l={z}&tk=' + tianditu_token,
subdomains: subdomains,
tilingScheme: new Cesium.WebMercatorTilingScheme()
}))
providers.push(new Cesium.UrlTemplateImageryProvider({
url: tdtUrl + 'DataServer?T=cia_w&x={x}&y={y}&l={z}&tk=' + tianditu_token,
subdomains: subdomains,
tilingScheme: new Cesium.WebMercatorTilingScheme(),
maximumLevel: 18
}))
return providers;
}
});
var img_google_rs = new Cesium.ProviderViewModel({
name: "Google影像底图",
tooltip: "Google影像底图",
iconUrl: "images/GoogleEarth.ico",
creationFunction: function () {
var provider = new Cesium.UrlTemplateImageryProvider({
url: 'https://www.google.com/maps/vt?lyrs=s&x={x}&y={y}&z={z}'
// subdomains: subdomains
});
return provider;
}
});
var img_google_tianditu_rs = new Cesium.ProviderViewModel({
name: "Google影像底图-带天地图注记",
tooltip: "Google影像底图-带天地图注记",
iconUrl: "images/GoogleEarth.ico",
creationFunction: function () {
var subdomains_tianditu = ['0', '1', '2', '3', '4', '5', '6', '7']
var providers = []
providers.push(new Cesium.UrlTemplateImageryProvider({
url: 'https://www.google.com/maps/vt?lyrs=s&x={x}&y={y}&z={z}'
}))
providers.push(new Cesium.UrlTemplateImageryProvider({
url: tdtUrl + 'DataServer?T=ibo_w&x={x}&y={y}&l={z}&tk=' + tianditu_token,
subdomains: subdomains_tianditu,
tilingScheme: new Cesium.WebMercatorTilingScheme()
}))
providers.push(new Cesium.UrlTemplateImageryProvider({
url: tdtUrl + 'DataServer?T=cia_w&x={x}&y={y}&l={z}&tk=' + tianditu_token,
subdomains: subdomains_tianditu,
tilingScheme: new Cesium.WebMercatorTilingScheme(),
maximumLevel: 18
}))
return providers;
}
});
var img_mapbox_rs = new Cesium.ProviderViewModel({
name: "MapBox影像底图",
tooltip: "MapBox影像底图",
iconUrl: "images/mapbox.png",
creationFunction: function () {
var provider = new Cesium.UrlTemplateImageryProvider({
url: 'https://api.mapbox.com/styles/v1/mapbox/satellite-v9/tiles/{z}/{x}/{y}?access_token=' + mapbox_token
});
return provider;
}
});
var img_mapbox_tianditu_rs = new Cesium.ProviderViewModel({
name: "MapBox影像底图-带天地图注记",
tooltip: "MapBox影像底图-带天地图注记",
iconUrl: "images/mapbox.png",
creationFunction: function () {
var subdomains_tianditu = ['0', '1', '2', '3', '4', '5', '6', '7']
var providers = []
providers.push(new Cesium.UrlTemplateImageryProvider({
url: 'https://api.mapbox.com/styles/v1/mapbox/satellite-v9/tiles/{z}/{x}/{y}?access_token=' + mapbox_token
}))
providers.push(new Cesium.UrlTemplateImageryProvider({
url: tdtUrl + 'DataServer?T=ibo_w&x={x}&y={y}&l={z}&tk=' + tianditu_token,
subdomains: subdomains_tianditu,
tilingScheme: new Cesium.WebMercatorTilingScheme()
}))
// providers.push(new Cesium.UrlTemplateImageryProvider({
// url: "https://wprd04.is.autonavi.com/appmaptile?x={x}&y={y}&z={z}&lang=zh_cn&size=1&scl=2&style=8<ype=11",
// subdomains: subdomains_tianditu,
// tilingScheme : new Cesium.WebMercatorTilingScheme()
// }))
providers.push(new Cesium.UrlTemplateImageryProvider({
url: tdtUrl + 'DataServer?T=cia_w&x={x}&y={y}&l={z}&tk=' + tianditu_token,
subdomains: subdomains_tianditu,
tilingScheme: new Cesium.WebMercatorTilingScheme(),
maximumLevel: 18
}))
return providers;
}
});
var img_google_topo = new Cesium.ProviderViewModel({
name: "Google地形图",
tooltip: "Google地形图",
iconUrl: "images/google_map.jpg",
creationFunction: function () {
var provider = new Cesium.UrlTemplateImageryProvider({
url: 'https://www.google.com/maps/vt?lyrs=p&x={x}&y={y}&z={z}'
});
return provider;
}
});
var img_osm_topo = new Cesium.ProviderViewModel({
name: "OpenStreetMap地形图",
tooltip: "OpenStreetMap地形图",
iconUrl: "images/osm_logo.png",
creationFunction: function () {
var provider = new Cesium.UrlTemplateImageryProvider({
url: "https://tile.thunderforest.com/cycle/{z}/{x}/{y}.png?apikey=6170aad10dfd42a38d4d8c709a536f38"
// url: "https://b.tile-cyclosm.openstreetmap.fr/cyclosm/{z}/{x}/{y}.png"
// url: "https://b.tile.opentopomap.org/{z}/{x}/{y}.png"
})
return provider;
}
});
//var img_arcgis = new Cesium.ProviderViewModel({
// name: "ArcGIS地图", //作为三维地图显示效果并不好
// tooltip: "ArcGIS地图",
// creationFunction: function () {
// var provider = new Cesium.UrlTemplateImageryProvider({
// url: "http://map.geoq.cn/arcgis/rest/services/ChinaOnlineStreetWarm/MapServer/tile/{z}/{y}/{x}"
// })
// return provider;
// }
//});
var img_WorldSoil = new Cesium.ProviderViewModel({
name: "全球土壤类型 2006",
tooltip: "全球土壤类型 2006",
iconUrl: "./images/soil.png",
creationFunction: function () {
var provider = new Cesium.WebMapServiceImageryProvider({
url: "https://maps.isric.org/mapserv?map=/map/wrb.map",
layers: "MostProbable",
tileHeight: 256,
tileWidth: 256,
parameter: {
service: 'WMS',
version: '1.3.0',
request: 'GetMap',
style: 'default',
transparent: 'true',
format: 'image/png',
CRS: 'EPSG:4326'
}
})
return provider;
}
});
var cesium_terrain = new Cesium.ProviderViewModel({
name: "Cesium全球地形",
tooltip: "Cesium全球地形",
iconUrl: "./images/CesiumWorldTerrain.png",
creationFunction: function () {
return Cesium.createWorldTerrain({
// required for water effects
requestWaterMask: true,
// required for terrain lighting
requestVertexNormals: true
});
}
});
var ellipsoid_terrain = new Cesium.ProviderViewModel({
name: "大地椭球体",
tooltip: "大地椭球体",
iconUrl: "./images/Ellipsoid.png",
creationFunction: function () {
var provider = new Cesium.EllipsoidTerrainProvider();
return provider;
}
});
Cesium.Ion.defaultAccessToken = me.opts.cesium_access_token;
let enable_animation = false;
let enable_timeline = false;
if(me.opts.enable_time_widgt){
enable_animation = true;
enable_timeline = true;
}
me.viewer = new Cesium.Viewer(me.opts.cesium_container, {
animation: enable_animation, //是否创建动画小器件，左下角仪表
timeline: enable_timeline, //是否显示时间线控件
geocoder: false, //是否显示地名查找控件，右上角查询按钮
fullscreenButton: false, //是否显示右下角全屏按钮
navigationHelpButton: false, //是否显示右上角的帮助按钮
homeButton: true, //是否显示Home按钮
showRenderLoopErrors: false,//如果设为true，将在一个HTML面板中显示错误信息
sceneModePicker: true,//是否显示3D/2D选择器
baseLayerPicker: true,//是否显示图层选择器
scene3DOnly: false,//如果设置为true，则所有几何图形以3D模式绘制以节约GPU资源
infoBox: false,//是否显示信息框
selectionIndicator: false,
//vrButton: true, //VR模式
imageryProviderViewModels: [
img_google_rs,
img_google_tianditu_rs,
img_google_topo,
img_mapbox_rs,
img_mapbox_tianditu_rs,
img_tianditu_rs,
img_osm_topo,
img_WorldSoil
],//可供BaseLayerPicker选择的图像图层ProviderViewModel数组
terrainProviderViewModels: [cesium_terrain, ellipsoid_terrain],
// 解决截图后图片没有内容，无法得到地图场景的问题
contextOptions: {
webgl: {
alpha: true,
depth: true,
stencil: true,
antialias: true,
premultipliedAlpha: true, //通过canvas.toDataURL()实现截图需要将该项设置为true
preserveDrawingBuffer: true,
failIfMajorPerformanceCaveat: true
}
},
});
if (!me.opts.show_atmosphere) {
me.viewer.scene.skyBox.show = false; //天空盒，即星空贴图
me.viewer.scene.skyAtmosphere.show = false; //大气效果
// me.viewer.scene.globe.showGroundAtmosphere = true;
//隐藏地球默认的蓝色背景
me.viewer.scene.globe.baseColor = Cesium.Color.TRANSPARENT;
//隐藏雾效果
me.viewer.scene.fog.enabled = false;
//隐藏黑色背景
//me.viewer.scene.backgroundColor=Cesium.Color.TRANSPARENT;
}
me.viewer._cesiumWidget._creditContainer.style.display = "none"; //去除版权信息
// 判断是否支持图像渲染像素化处理
var supportsImageRenderingPixelated = me.viewer.cesiumWidget._supportsImageRenderingPixelated;
if (supportsImageRenderingPixelated) {
// 直接拿到设备的像素比例因子 - 如我设置的1.25
var vtxf_dpr = window.devicePixelRatio;
while (vtxf_dpr >= 2.0) { vtxf_dpr /= 2.0; }
// 设置渲染分辨率的比例因子
me.viewer.resolutionScale = vtxf_dpr;
}
me.viewer.scene.fxaa = true
me.viewer.scene.postProcessStages.fxaa.enabled = true
//设置MapBox为默认的遥感影像
me.viewer.baseLayerPicker.viewModel.selectedImagery = me.viewer.baseLayerPicker.viewModel.imageryProviderViewModels[4];
me.viewer.baseLayerPicker.viewModel.selectedTerrain = me.viewer.baseLayerPicker.viewModel.terrainProviderViewModels[0];
var tianditu_flag = false
var google_flag = false
//若可以连接上Google，则设置Google影像为默认的遥感影像
$.ajax({
url: "https://www.google.com/maps/vt?lyrs=s&x=0&y=0&z=0",
method: "get",
success: function () {
google_flag = true
console.log("成功连接至Google服务器");
//若可以获取天地图标注图层，则添加带有天地图标注图层的MapBox影像
$.ajax({
url: 'https://t0.tianditu.gov.cn/DataServer?T=ibo_w&x=0&y=0&l=0&tk=' + tianditu_token,
method: "get",
success: function () {
tianditu_flag = true;
console.log("成功获取天地图标注图层");
if(tianditu_flag){
if(google_flag){
me.viewer.baseLayerPicker.viewModel.selectedImagery = me.viewer.baseLayerPicker.viewModel.imageryProviderViewModels[1];
} else {
me.viewer.baseLayerPicker.viewModel.selectedImagery = me.viewer.baseLayerPicker.viewModel.imageryProviderViewModels[4];
}
} else {
if(google_flag){
me.viewer.baseLayerPicker.viewModel.selectedImagery = me.viewer.baseLayerPicker.viewModel.imageryProviderViewModels[0];
} else {
me.viewer.baseLayerPicker.viewModel.selectedImagery = me.viewer.baseLayerPicker.viewModel.imageryProviderViewModels[3];
}
}
},
error: function () {
tianditu_flag = false
console.log("无法获取天地图标注图层");
},
timeout: 5000
})
},
error: function () {
google_flag = false
console.log("无法连接至Google服务器");
},
timeout: 5000
})
if(!me.opts.is_global){
let SenceRectangle = Cesium.Rectangle.fromDegrees(
me.opts.view_center[0] - 0.4,
me.opts.view_center[1] - 0.3,
me.opts.view_center[0] + 0.4,
me.opts.view_center[1] + 0.3
);
me.viewer.scene.globe.cartographicLimitRectangle = SenceRectangle;
me.viewer.scene.globe.backFaceCulling = true;
}
if(me.opts.enable_light){
//开启光照
me.viewer.scene.globe.enableLighting = true;
me.viewer.scene.globe.lightingFadeOutDistance = 1e6;
me.viewer.scene.globe.lightingFadeInDistance = 2e6;
me.viewer.scene.globe.nightFadeOutDistance = 1e6;
me.viewer.scene.globe.nightFadeInDistance = 2e6;
//设置时间，调整太阳高度角
me.viewer.clockViewModel.currentTime = Cesium.JulianDate.fromDate(new Date());
}
//调试用选项
//me.viewer.extend(Cesium.viewerCesiumInspectorMixin);
//显示帧速
//me.viewer.scene.debugShowFramesPerSecond = true;
//添加OSM Building三维建筑数据
//me.viewer.scene.primitives.add(Cesium.createOsmBuildings());
// Enable depth testing so things behind the terrain disappear.
me.viewer.scene.globe.depthTestAgainstTerrain = true;
if (!me.opts.show_atmosphere) {
me.viewer.scene.skyBox.show = false; //天空盒，即星空贴图
me.viewer.scene.skyAtmosphere.show = false; //大气效果
me.viewer.scene.globe.showGroundAtmosphere = true;
//隐藏地球默认的蓝色背景
me.viewer.scene.globe.baseColor = Cesium.Color.TRANSPARENT;
//隐藏雾效果
me.viewer.scene.fog.enabled = false;
//隐藏黑色背景
//me.viewer.scene.backgroundColor=Cesium.Color.TRANSPARENT;
}
//导航栏
var options = {
defaultResetView: Cesium.Cartographic.fromDegrees(...me.opts.view_center),
enableCompass: true,
enableZoomControls: true,
enableDistanceLegend: true,
enableCompassOuterRing: false
}
// extend our view by the cesium navigaton mixin
me.viewer.extend(Cesium.viewerCesiumNavigationMixin, options);
if(me.opts.enable_time_widgt){
$(".coordination").css({
"bottom": "35px",
"right": "10px",
"left": "auto"
});
$(".distance-legend").css({
"bottom": "70px"
});
}
var orientation_setting
if(me.opts.is_global){
orientation_setting = me.home_orientation
} else {
orientation_setting = me.point_orientation
}
// 修改home按钮的行为
me.viewer.homeButton.viewModel.command.beforeExecute.addEventListener(function (commandInfo) {
//飞回指定位置
me.viewer.camera.flyTo({
destination: Cesium.Cartesian3.fromDegrees(
location.longitude - location.height_above * Math.cos(orientation_setting.pitch) * Math.sin(orientation_setting.heading) / 111319.55,
location.latitude - location.height_above * Math.cos(orientation_setting.pitch) * Math.cos(orientation_setting.heading) / 111319.55,
location.height_above * Math.sin(-orientation_setting.pitch)
),
orientation: orientation_setting
});
// Tell the home button not to do anything
commandInfo.cancel = true;
});
let location = {
longitude: me.opts.view_center[0],
latitude: me.opts.view_center[1],
height_above: me.opts.view_center[2]
}
me.viewer.camera.setView({
destination: Cesium.Cartesian3.fromDegrees(
location.longitude - location.height_above * Math.cos(orientation_setting.pitch) * Math.sin(orientation_setting.heading) / 111319.55,
location.latitude - location.height_above * Math.cos(orientation_setting.pitch) * Math.cos(orientation_setting.heading) / 111319.55,
location.height_above * Math.sin(-orientation_setting.pitch)
),
orientation: orientation_setting
});
var longitude_show = $('#longitude_show').get(0);
var latitude_show = $('#latitude_show').get(0);
var altitude_show = $('#altitude_show').get(0);
var view_height = $('#view_height_show').get(0);
var canvas = me.viewer.scene.canvas;
function show_coordinate(movement, type) {
//捕获椭球体，将笛卡尔二维平面坐标转为椭球体的笛卡尔三维坐标，返回球体表面的点
if (movement.endPosition) {
var cartesian = me.viewer.scene.pickPosition(movement.endPosition);
} else if (movement.position) {
var cartesian = me.viewer.scene.pickPosition(movement.position);
}
if (cartesian) {
//将笛卡尔三维坐标转为地图坐标（弧度）
var cartographic = me.viewer.scene.globe.ellipsoid.cartesianToCartographic(cartesian);
//将地图坐标（弧度）转为十进制的度数
var log_String = Cesium.Math.toDegrees(cartographic.longitude).toFixed(6);
var lat_String = Cesium.Math.toDegrees(cartographic.latitude).toFixed(6);
var alti_String = (me.viewer.scene.globe.getHeight(cartographic)).toFixed(2);
var view_String = (me.viewer.camera.positionCartographic.height / 1000).toFixed(2);
longitude_show.innerHTML = log_String;
latitude_show.innerHTML = lat_String;
altitude_show.innerHTML = alti_String;
view_height.innerHTML = view_String;
}
}
//具体事件的实现
var handler = new Cesium.ScreenSpaceEventHandler(canvas);
handler.setInputAction(show_coordinate, Cesium.ScreenSpaceEventType.MOUSE_MOVE);
handler.setInputAction(show_coordinate, Cesium.ScreenSpaceEventType.LEFT_CLICK);
};
MapControl.prototype.get_altitude = function (longitude, latitude) {
var me = this;
return me.viewer.scene.globe.getHeight(
Cesium.Cartographic.fromDegrees(longitude, latitude)
);
}
MapControl.prototype.id = 0;
MapControl.prototype.get_id = function () {
this.id += 1;
return this.id;
}
MapControl.prototype.select_pathpoint = function () {
var me = this;
// 选择entity的监听器,代码自行调整,可以在overlay的基础上继承写成bubble类
var handler = new Cesium.ScreenSpaceEventHandler(me.viewer.scene._imageryLayerCollection);
handler.setInputAction(function (movement) {
var overlay = new Overlay({
MapControl: me,
show_address: true
});
me.viewer.addOverlay(overlay);
var cartesian = me.viewer.scene.pickPosition(movement.position);
if (typeof cartesian != "undefined") {
let ray = me.viewer.camera.getPickRay(movement.position);
cartesian = me.viewer.scene.globe.pick(ray, me.viewer.scene);
overlay.setPosition(cartesian);
}
handler.removeInputAction(Cesium.ScreenSpaceEventType.LEFT_CLICK);
}, Cesium.ScreenSpaceEventType.LEFT_CLICK);
}
MapControl.prototype.add_pathpoint = function (location) {
var me = this;
me.pathpoints.push(location);
// console.log(me.pathpoints);
}
MapControl.prototype.remove_pathpoint = function (id) {
var me = this;
let i = me.pathpoints.findIndex((point) => point.id == id);
if (i != -1) {
me.pathpoints.splice(i, 1);
}
// console.log(me.pathpoints);
}
MapControl.prototype.flyTo = function (location, callback) {
var me = this;
var viewer = me.viewer
let approx_height = 12000;
if (location.altitude) {
approx_height = location.altitude + 5 * location.accuracy;
}
if (callback) {
callback(location);
}
viewer.camera.flyTo({
destination: Cesium.Cartesian3.fromDegrees(
location.longitude,
location.latitude,
approx_height
),
orientation: me.home_orientation,
complete: () => {
var helper = new Cesium.EventHelper();
var zoomIn = 10;
helper.add(viewer.scene.globe.tileLoadProgressEvent, function (event) {
//console.log("每次加载矢量切片都会进入这个回调")
if (event < 10) {
viewer.camera.zoomIn(zoomIn);
zoomIn += 5;
}
if (event == 0) {
//console.log("这个是加载最后一个矢量切片的回调")
let approx_height = 0;
if (location.altitude) {
approx_height = location.altitude;
} else {
approx_height = me.get_altitude(location.longitude, location.latitude);
}
let height_above = 4000;
if (location.accuracy) {
height_above = 5 * location.accuracy;
}
viewer.camera.flyTo({
destination: Cesium.Cartesian3.fromDegrees(
location.longitude - height_above * Math.cos(me.point_orientation.pitch) * Math.sin(me.point_orientation.heading) / 111319.55,
location.latitude - height_above * Math.cos(me.point_orientation.pitch) * Math.cos(me.point_orientation.heading) / 111319.55,
approx_height + height_above * Math.sin(-me.point_orientation.pitch)
),
orientation: me.point_orientation
});
if (callback) {
callback(location);
}
helper.removeAll();
}
});
}
});
}
MapControl.prototype.draw_point = function (location, text = null, id = 'location') {
var me = this;
var viewer = me.viewer;
viewer.entities.remove(viewer.entities.getById(id))
var label = null;
if (text) {
label = {
text: text,
font: '18px sans-serif',
fillColor: Cesium.Color.GOLD,
style: Cesium.LabelStyle.FILL_AND_OUTLINE,
outlineWidth: 2,
verticalOrigin: Cesium.VerticalOrigin.BOTTOM,
pixelOffset: new Cesium.Cartesian2(20, -20),
disableDepthTestDistance: Number.POSITIVE_INFINITY
}
}
viewer.entities.add({
id: id,
position: Cesium.Cartesian3.fromDegrees(
location.longitude,
location.latitude,
me.get_altitude(location.longitude, location.latitude)
),
point: {
pixelSize: 10,
color: Cesium.Color.BLUE,
outlineColor: Cesium.Color.WHITE,
outlineWidth: 1,
heightReference: Cesium.HeightReference.CLAMP_TO_GROUND,
disableDepthTestDistance: Number.POSITIVE_INFINITY
},
label: label
})
}
MapControl.prototype.draw_polyline = function (locations) {
var me = this;
var positions = []
locations.forEach((loc, i) => {
positions.push(Cesium.Cartesian3.fromDegrees(
loc.longitude,
loc.latitude,
me.get_altitude(loc.longitude, loc.latitude)
));
});
var line_options = {
name: 'route',
polyline: {
show: true,
positions: positions,
material: Cesium.Color.CHARTREUSE,
width: 5,
clampToGround: true
}
};
me.viewer.entities.add(line_options);
// var helper = new Cesium.EventHelper();
// helper.add(viewer.scene.globe.tileLoadProgressEvent, function (event) {
// //console.log("每次加载矢量切片都会进入这个回调")
// if (event == 0) {
// //console.log("这个是加载最后一个矢量切片的回调")
// line_options.polyline.positions = positions;
// helper.removeAll();
// }
// });
}
//定位
MapControl.prototype.getLocation = function () {
var me = this;
var viewer = me.viewer;
var options = {
enableHighAccuracy: true,
timeout: 5000,
maximumAge: 0
};
function success(pos) {
var crd = pos.coords;
me.flyTo(crd, (location) => me.draw_point(location, "当前位置"))
// console.log('Your current position is:')
// console.log('Latitude : ' + crd.latitude)
// console.log('Longitude: ' + crd.longitude)
// console.log('altitude: ' + crd.altitude);
// console.log('More or less ' + crd.accuracy + ' meters.')
};
function error(err) {
console.warn('ERROR(' + err.code + '): ' + err.message);
switch (error.code) {
case error.PERMISSION_DENIED:
alert("用户拒绝告知地理位置")
break;
case error.POSITION_UNAVAILABLE:
alert("位置信息不可用")
break;
case error.TIMEOUT:
alert("请求用户地理位置超时")
break;
case error.UNKNOWN_ERROR:
alert("未知错误")
break;
}
};
if (window.h5sdk) {
alert("调用定位API")
window.h5sdk.device.geolocation.get({
useCache: false,
onSuccess: function (locationData) {
alert(JSON.stringify(locationData));
success(locationData)
},
onFail: function (errorMsg) {
alert(JSON.stringify(errorMsg));
}
});
} else {
navigator.geolocation.getCurrentPosition(success, error, options);
}
}
MapControl.prototype.search_init = function () {
var me = this;
$("#form_search").bind("submit", () => {
me.search();
return false; //防止form自动跳转
})
$('#route_planning').click(() => {
me.route_planning();
});
}
MapControl.prototype.search = function () {
var me = this;
var amap = new amap_api();
amap.search($("input#search").val(), (result) => {
if (result.status == "1") {
toggleToolbarById(me.opts.toolbar_container);
let place_name = result.pois[0].name;
let amap_crds = result.pois[0].location.split(',');
let crd_trans = new Coordinate();
let wgs84_crds = crd_trans.gcj02_to_wgs84(amap_crds[0], amap_crds[1]);
me.flyTo({
longitude: wgs84_crds[0],
latitude: wgs84_crds[1]
}, (location) => me.draw_point(location, place_name, "search_place"))
}
});
}
MapControl.prototype.share = function () {
if (window.h5sdk) {
alert("调用分享API")
window.h5sdk.biz.util.share({
url: "http://www.skylight.xin?data=" + btoa(JSON.stringify(me.pathpoints)),
title: "看看地球",
image: "http://www.skylight.xin/images/mountain.png",
content: "可以浏览全球三维地形图，并在飞书文档里分享地点和路线",
onSuccess: function (result) {
alert(JSON.stringify(result));
}
});
}
}
MapControl.prototype.route_planning = function () {
var me = this;
var amap = new amap_api();
var crd_trans = new Coordinate();
me.viewer.entities.removeAll();
me.draw_point(me.pathpoints[0], null, me.pathpoints[0].id);
for (let i = 0; i < me.pathpoints.length - 1; i++) {
let start = crd_trans.wgs84_to_gcj02(
me.pathpoints[i].longitude,
me.pathpoints[i].latitude
);
let end = crd_trans.wgs84_to_gcj02(
me.pathpoints[i + 1].longitude,
me.pathpoints[i + 1].latitude
);
let start_string = start[0].toFixed(6) + ',' + start[1].toFixed(6);
let end_string = end[0].toFixed(6) + ',' + end[1].toFixed(6);
amap.route_planning(start_string, end_string, (result) => {
// console.log(result);
if (result.status == 1) {
var locations = [];
result.route.paths.forEach((path, i) => {
path.steps.forEach((step, i) => {
step.polyline.split(';').forEach((point, i) => {
let wgs84_crds = crd_trans.gcj02_to_wgs84(
parseFloat(point.split(',')[0]),
parseFloat(point.split(',')[1])
);
locations.push({
longitude: wgs84_crds[0],
latitude: wgs84_crds[1]
})
})
});
});
me.draw_polyline(locations);
} else {
alert("路线规划失败")
}
});
me.draw_point(me.pathpoints[i + 1], null, me.pathpoints[i + 1].id);
}
}
//截图
function save_to_file(scene) {
let canvas = scene.canvas;
let image = canvas.toDataURL("image/png").replace("image/png", "image/octet-stream");
let link = document.createElement("a");
let blob = data_url_to_blob(image);
let objurl = URL.createObjectURL(blob);
link.download = "scene.png";
link.href = objurl;
link.click();
}
function data_url_to_blob(dataurl) {
let arr = dataurl.split(','),
mime = arr[0].match(/:(.*?);/)[1],
bstr = atob(arr[1]),
n = bstr.length,
u8arr = new Uint8Array(n);
while (n--) {
u8arr[n] = bstr.charCodeAt(n);
}
return new Blob([u8arr], { type: mime });
}
//测量空间直线距离
/********************************************/
MapControl.prototype.measureLineSpace = function () {
var me = this;
var viewer = me.viewer;
// 取消双击事件-追踪该位置
viewer.cesiumWidget.screenSpaceEventHandler.removeInputAction(Cesium.ScreenSpaceEventType.LEFT_DOUBLE_CLICK);
handler = new Cesium.ScreenSpaceEventHandler(viewer.scene._imageryLayerCollection);
var positions = [];
var poly = null;
// var tooltip = document.getElementById("toolTip");
var distance = 0;
var cartesian = null;
var floatingPoint;
// tooltip.style.display = "block";
handler.setInputAction(function (movement) {
// tooltip.style.left = movement.endPosition.x + 3 + "px";
// tooltip.style.top = movement.endPosition.y - 25 + "px";
// tooltip.innerHTML = '<p>单击开始，右击结束</p>';
cartesian = viewer.scene.pickPosition(movement.endPosition);
if (typeof cartesian != "undefined") {
let ray = viewer.camera.getPickRay(movement.endPosition);
cartesian = viewer.scene.globe.pick(ray, viewer.scene);
//cartesian = viewer.scene.camera.pickEllipsoid(movement.endPosition, viewer.scene.globe.ellipsoid);
if (positions.length >= 2) {
if (!Cesium.defined(poly)) {
poly = new PolyLinePrimitive(positions);
} else {
positions.pop();
// cartesian.y += (1 + Math.random());
positions.push(cartesian);
}
distance = getSpaceDistance(positions);
// console.log("distance: " + distance);
// tooltip.innerHTML='<p>'+distance+'米</p>';
}
}
}, Cesium.ScreenSpaceEventType.MOUSE_MOVE);
handler.setInputAction(function (movement) {
// tooltip.style.display = "none";
// cartesian = viewer.scene.camera.pickEllipsoid(movement.position, viewer.scene.globe.ellipsoid);
cartesian = viewer.scene.pickPosition(movement.position);
if (typeof cartesian != "undefined") {
let ray = viewer.camera.getPickRay(movement.position);
cartesian = viewer.scene.globe.pick(ray, viewer.scene);
if (positions.length == 0) {
positions.push(cartesian.clone());
}
positions.push(cartesian);
//在三维场景中添加Label
// var cartographic = Cesium.Cartographic.fromCartesian(cartesian);
var textDisance = distance + "米";
// console.log(textDisance + ",lng:" + cartographic.longitude/Math.PI*180.0);
floatingPoint = viewer.entities.add({
name: '空间直线距离',
// position: Cesium.Cartesian3.fromDegrees(cartographic.longitude / Math.PI * 180, cartographic.latitude / Math.PI * 180,cartographic.height),
position: positions[positions.length - 1],