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Helloworld2.html
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<!DOCTYPE html>
<html lang="en">
<head>
<!-- Use correct character set. -->
<meta charset="utf-8">
<!-- Tell IE to use the latest, best version. -->
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<!-- Make the application on mobile take up the full browser screen and disable user scaling. -->
<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>
<link rel="stylesheet" href="../Build/Cesium/Widgets/widgets.css">
<!-- 如果要用沙盒里的东西的话加上这个 -->
<script src="../Apps/Sandcastle/Sandcastle-header.js"></script>
<!-- 一定要加上这个css样式 -->
<link rel="stylesheet" href="Sandcastle/templates/bucket.css">
</head>
<body>
<style>
@import url(../templates/bucket.css);
/* height="600px" width="full" */
</style>
<div id="cesiumContainer" class="fullSize"> </div>
<div id="toolbar">
<!-- 这是Demo需要的侧边栏 -->
<table class="infoPanel">
<tbody>
<tr>
<td>Click on the 3D window then use the keyboard to change settings.</td>
</tr>
<tr>
<td>longitude: <span id="longitude_show"></span>°</td>
</tr>
<tr>
<td>latitude: <span id="latitude_show"></span>°</td>
</tr>
<tr>
<td>altitude: <span id="altitude_show"></span>m</td>
</tr>
<tr>
<td>Speed: <span id="speed"></span>m/s</td>
</tr>
<tr>
<td>following man
<input id="fromBehind" type="checkbox">
</td>
</tr>
<button type="button" onclick="displayman()"> 太空人开始漫游</button>
<button type="button" onclick="foucsVX()"> 以卫星视角观看地球</button>
</tbody>
</table>
</div>
<!-- <button type="button" onclick="displayman()"> 太空人开始漫游</button>
<button type="button" onclick="foucsVX()"> 以卫星视角观看地球</button> -->
<script>
Cesium.Ion.defaultAccessToken = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiJkODk5YWNlNS1kZjk1LTQzMTctOGRmMy05ZGQ2NTNjMGNhODYiLCJpZCI6OTUwMywic2NvcGVzIjpbImFzciIsImdjIl0sImlhdCI6MTU1NDI1NTU3Mn0.VvgpCpgKnmYhn2ZiABROO2e2bjFERiWBW77i5XnQt4A'
// var Greg= Cesium.JulianDate.toGregorianDate(viewer.clock.currentTime);
// var Iso8601=Cesium.JulianDate.toIso8601(viewer.clock.currentTime,1);
// console.log(Greg);
// console.log(Iso8601);
// (function fn1()
// {position2=Cesium.Cartesian3.fromDegrees(-123.0744619, 44.0503706, 6000.0);})
// ();
var viewer = new Cesium.Viewer('cesiumContainer', {
shouldAnimate : true});
viewer.scene.globe.enableLighting = true;
var czml=[{"clock": {"interval": "2019-10-16T07:55:30.075021/2019-10-17T07:55:30.075021", "range": "LOOP_STOP", "currentTime": "2019-10-16T07:55:30.075021", "step": "SYSTEM_CLOCK_MULTIPLIER", "multiplier": 3}, "version": "1.0", "id": "document"},
{"label":
{"font": "11pt Lucida Console", "pixelOffset": {"cartesian2": [12, 0]}, "text": "0 ASTRO E2", "horizontalOrigin": "LEFT", "outlineColor": {"rgba": [0, 0, 0, 255]}, "fillColor": {"rgba": [213, 255, 0, 255]}, "outlineWidth": 2, "show": true},
"id": "Satellite/0 ASTRO E2",
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{"interval": "2019-10-16T19:15:58.770689/2019-10-16T20:50:55.183730", "number": [0, 5696.413041297603, 5696.413041297603, 0], "epoch": "2019-10-16T19:15:58.770689"}, {"interval": "2019-10-16T20:50:55.183730/2019-10-16T22:25:51.596771", "number": [0, 5696.413041297603, 5696.413041297603, 0], "epoch": "2019-10-16T20:50:55.183730"}, {"interval": "2019-10-16T22:25:51.596771/2019-10-17T00:00:48.009812", "number": [0, 5696.413041297603, 5696.413041297603, 0], "epoch": "2019-10-16T22:25:51.596771"}, {"interval": "2019-10-17T00:00:48.009812/2019-10-17T01:35:44.422853", "number": [0, 5696.413041297603, 5696.413041297603, 0], "epoch": "2019-10-17T00:00:48.009812"}, {"interval": "2019-10-17T01:35:44.422853/2019-10-17T03:10:40.835894", "number": [0, 5696.413041297603, 5696.413041297603, 0], "epoch": "2019-10-17T01:35:44.422853"}, {"interval": "2019-10-17T03:10:40.835894/2019-10-17T04:45:37.248935", "number": [0, 5696.413041297603, 5696.413041297603, 0], "epoch": "2019-10-17T03:10:40.835894"}, {"interval": "2019-10-17T04:45:37.248935/2019-10-17T06:20:33.661976", "number": [0, 5696.413041297603, 5696.413041297603, 0], "epoch": "2019-10-17T04:45:37.248935"}, {"interval": "2019-10-17T06:20:33.661976/2019-10-17T07:55:30.075017", "number": [0, 5696.413041297603, 5696.413041297603, 0], "epoch": "2019-10-17T06:20:33.661976"}], "material": {"solidColor": {"color": {"rgba": [213, 255, 0, 255]}}}, "show": [{"interval": "2019-10-16T07:55:30.075021/2019-10-17T07:55:30.075021", "boolean": true}], "width": 1}, "availability": "2019-10-16T07:55:30.075021/2019-10-17T07:55:30.075021"}];
var canvas=viewer.scene.canvas;
var vx ;
var position2 = new Cesium.Cartesian3();
var position3 = new Cesium.Cartesian3();
var dataSourcePromise2 = viewer.dataSources.add(Cesium.CzmlDataSource.load(czml));
dataSourcePromise2.then(function(dataSource){
vx = dataSource.entities.getById('Satellite/0 ASTRO E2')});
function foucsVX()
{
viewer.trackedEntity = vx;}
var promise1 = new Promise(function(resolve, reject)
{
(function()
{
viewer.scene.preRender.addEventListener(function(scene, time)
{position2= vx.position.getValue(viewer.clock.currentTime)
// console.log(position2);
resolve(position2);
});
})();
});
promise1.then(function(value) {
position3=position2;
console.log(position3);
});
console.log(position3);
// console.log(position2);
// var cartographic = viewer.scene.globe.ellipsoid.cartesianToCartographic(position2);
// var longitude = Cesium.Math.toDegrees(cartographic.longitude).toFixed(3);
// var latitude = Cesium.Math.toDegrees(cartographic.latitude).toFixed(3);
// console.log(latitude);
function displayman()
{
//viewer.scene.preRender.addEventListener(function(scene, time) {console.log(viewer.clock.currentTime)})
// console.log(viewer.clock.currentTime);
// var Iso8601=Cesium.JulianDate.toIso8601(viewer.clock.currentTime,1);
// console.log(Iso8601);
position2= vx.position.getValue(viewer.clock.currentTime)
console.log(position2);
var cartographic = viewer.scene.globe.ellipsoid.cartesianToCartographic(position2);
var longitude = Cesium.Math.toDegrees(cartographic.longitude).toFixed(3);
var latitude = Cesium.Math.toDegrees(cartographic.latitude).toFixed(3);
console.log(latitude);
var canvas = viewer.canvas;
canvas.setAttribute('tabindex', '0'); // 将焦点放在画布上
//如果点击就获取画布焦点
canvas.addEventListener('click', function() {
canvas.focus();
});
canvas.focus();
//飞行路径的位置
var pathPosition = new Cesium.SampledPositionProperty();
//添加飞机飞行路径
var entityPath = viewer.entities.add({
position : pathPosition,
name : 'path',
path :
{
show : true,
leadTime : 0,
trailTime : 60,
width : 1000,
resolution : 1,
material : new Cesium.PolylineGlowMaterialProperty
({
glowPower : 0.3,
color : Cesium.Color.PALEGOLDENROD
})
}
});
var scene = viewer.scene;
var camera = viewer.camera;
var controller = scene.screenSpaceCameraController;
var r = 0;
//中心点
var center = new Cesium.Cartesian3();
//机身模型的偏移参数
var hpRoll = new Cesium.HeadingPitchRoll();
//相机模型的偏移参数
var hpRange = new Cesium.HeadingPitchRange();
var speed = 10000;
//默认按一下偏移3度
var deltaRadians = Cesium.Math.toRadians(3.0);
//飞机位置
var position = position2;
//速度向量
var speedVector = new Cesium.Cartesian3();
//生成一个由两个参考系生成的矩阵
var fixedFrameTransform = Cesium.Transforms.localFrameToFixedFrameGenerator('north', 'west');
//添加模型
var planePrimitive = scene.primitives.add(Cesium.Model.fromGltf({
// url : '../Apps/SampleData/models/CesiumAir/Cesium_Air.glb',
url: ' ../Apps/SampleData/models/CesiumMan/Cesium_Man.glb',
modelMatrix : Cesium.Transforms.headingPitchRollToFixedFrame(position, hpRoll, Cesium.Ellipsoid.WGS84, fixedFrameTransform),
minimumPixelSize : 128
}));
planePrimitive.readyPromise.then(function(model)
{
// 以半速循环动画
model.activeAnimations.addAll({
speedup : 0.5,
loop : Cesium.ModelAnimationLoop.REPEAT
});
//r=2*max(模型的半径，相机的最近距离)
r = 2.0 * Math.max(model.boundingSphere.radius, camera.frustum.near);
//镜头最近距离
controller.minimumZoomDistance = r * 0.5;
// var cartographic2 = viewer.scene.globe.ellipsoid.cartesianToCartographic( model.boundingSphere.center);
// var longitude2 = Cesium.Math.toDegrees(cartographic2.longitude).toFixed(3);
// var latitude2 = Cesium.Math.toDegrees(cartographic2.latitude).toFixed(3);
// console.log(latitude);
//计算模型center在世界坐标系中的位置(也为下面的镜头跟随提供了center位置)
//但我感觉model.boundingSphere.center就已经是世界坐标了。也不对的这句话
Cesium.Matrix4.multiplyByPoint(model.modelMatrix, model.boundingSphere.center, center);
// console.log(model.boundingSphere.center)
// console.log( center);
//相机偏移角度
var heading = Cesium.Math.toRadians(230);
var pitch = Cesium.Math.toRadians(-45);
hpRange.heading = hpRoll.heading;
hpRange.pitch = hpRoll.pitch;
// hpRange.heading = heading;
// hpRange.pitch = pitch;
hpRange.range = r * 5000.0;
//固定相机
viewer.trackedEntity =undefined;
camera.lookAt(center, hpRange);
//viewer.trackedEntity = model;
});
//键盘监听
document.addEventListener('keydown', function(e) {
switch (e.keyCode) {
case 40:
if (e.shiftKey) {
// 按住shift加下箭头减速
speed2= speed-100;
speed = Math.max(speed2, 10);
} else {
// 直接按下箭头降低角度
hpRoll.pitch -= deltaRadians;
if (hpRoll.pitch < -Cesium.Math.TWO_PI) {
hpRoll.pitch += Cesium.Math.TWO_PI;
}
}
break;
case 38:
if (e.shiftKey) {
// 按住shift加上箭头加速
speed2= speed+100;
speed = Math.min(speed2, 10000);
} else {
// 直接按上箭头抬高角度
hpRoll.pitch += deltaRadians;
if (hpRoll.pitch > Cesium.Math.TWO_PI) {
hpRoll.pitch -= Cesium.Math.TWO_PI;
}
}
break;
case 39:
if (e.shiftKey) {
// 飞机本身向右旋转
hpRoll.roll += deltaRadians;
if (hpRoll.roll > Cesium.Math.TWO_PI) {
hpRoll.roll -= Cesium.Math.TWO_PI;
}
} else {
// 向右飞行
hpRoll.heading += deltaRadians;
if (hpRoll.heading > Cesium.Math.TWO_PI) {
hpRoll.heading -= Cesium.Math.TWO_PI;
}
}
break;
case 37:
if (e.shiftKey) {
// 飞机本身向左旋转
hpRoll.roll -= deltaRadians;
if (hpRoll.roll < 0.0) {
hpRoll.roll += Cesium.Math.TWO_PI;
}
} else {
// 向左飞行
hpRoll.heading -= deltaRadians;
if (hpRoll.heading < 0.0) {
hpRoll.heading += Cesium.Math.TWO_PI;
}
}
break;
default:
}
});
// var headingSpan = document.getElementById('heading');
// var pitchSpan = document.getElementById('pitch');
// var rollSpan = document.getElementById('roll');
var speedSpan = document.getElementById('speed');
var fromBehind = document.getElementById('fromBehind');
//给左边的通知栏更新数据同时刷新飞机位置(这里也是个1ms一次的回调)
viewer.scene.preRender.addEventListener(function(scene, time) {
var longitude_show = document.getElementById("longitude_show");
var latitude_show = document.getElementById("latitude_show");
var altitude_show = document.getElementById("altitude_show");
var ellipsoid = viewer.scene.globe.ellipsoid;
var cartographic=ellipsoid.cartesianToCartographic(position);
var lat_String = Cesium.Math.toDegrees(cartographic.latitude).toFixed(4);
var log_String = Cesium.Math.toDegrees(cartographic.longitude).toFixed(4);
var alti_String = (cartographic.height).toFixed(2);
longitude_show.innerHTML = log_String;
latitude_show.innerHTML = lat_String;
altitude_show.innerHTML = alti_String;
speedSpan.innerHTML = speed.toFixed(1);
//选择的笛卡尔分量Cartesian3.UNIT_X（x轴单位长度）乘以一个标量speed/10，得到速度向量speedVector
speedVector = Cesium.Cartesian3.multiplyByScalar(Cesium.Cartesian3.UNIT_X, speed / 10, speedVector);
//飞机的模型矩阵与速度向量speedVector相乘，在time上的叠加，得到position
position = Cesium.Matrix4.multiplyByPoint(planePrimitive.modelMatrix, speedVector, position);
//添加一个路径模型(就是白色的尾气)
pathPosition.addSample(Cesium.JulianDate.now(), position);
//飞机位置+旋转角度+地球+坐标矩阵=飞机模型矩阵
Cesium.Transforms.headingPitchRollToFixedFrame(position, hpRoll, Cesium.Ellipsoid.WGS84, fixedFrameTransform, planePrimitive.modelMatrix);
if (fromBehind.checked)
{ // 镜头跟随
Cesium.Matrix4.multiplyByPoint(planePrimitive.modelMatrix, planePrimitive.boundingSphere.center, center);
hpRange.heading = hpRoll.heading;
hpRange.pitch = hpRoll.pitch;
hpRange.range = 100;
camera.lookAt(center, hpRange);
// viewer.entities.remove(entityPath);
}
});
}
// viewer.extend(Cesium.viewerCesiumInspectorMixin);
// 显示帧速
// viewer.scene.debugShowFramesPerSecond = true;
viewer._cesiumWidget._creditContainer.style.display = "none";
</script>
</body>
</html>