可以用html语言帮我写一个基于cesium的钳击箭头的代码嘛?
时间: 2024-05-24 12:10:13 浏览: 18
当然可以,以下是一个基于 Cesium 的钳击箭头的示例代码:
```html
<!DOCTYPE html>
<html lang="en">
<head>
<title>Cesium - Pin and Billboard Arrow Example</title>
<script src="https://cesium.com/downloads/cesiumjs/releases/1.78/Build/Cesium/Cesium.js"></script>
<link href="https://cesium.com/downloads/cesiumjs/releases/1.78/Build/Cesium/Widgets/widgets.css" rel="stylesheet">
<style>
@import url(https://fonts.googleapis.com/css?family=Roboto:400,500,700,300,100);
#cesiumContainer {
width: 100%;
height: 100%;
position: absolute;
top: 0;
left: 0;
margin: 0;
padding: 0;
overflow: hidden;
font-family: Roboto, sans-serif;
}
#toolbar {
position: absolute;
top: 10px;
left: 10px;
z-index: 1;
}
.toolbar-button {
background-color: rgba(255, 255, 255, 0.8);
border: 1px solid rgba(0, 0, 0, 0.2);
color: #444;
font-size: 16px;
font-weight: bold;
margin: 5px;
padding: 5px;
border-radius: 2px;
cursor: pointer;
transition: all 0.3s ease-out;
}
.toolbar-button:hover {
background-color: rgba(255, 255, 255, 1);
box-shadow: 1px 1px 5px rgba(0, 0, 0, 0.3);
}
</style>
</head>
<body>
<div id="cesiumContainer"></div>
<div id="toolbar">
<button class="toolbar-button" onclick="pin()">Pin</button>
<button class="toolbar-button" onclick="billboard()">Billboard</button>
</div>
<script>
Cesium.Ion.defaultAccessToken = 'your_access_token';
var viewer = new Cesium.Viewer('cesiumContainer', {
terrainProvider: Cesium.createWorldTerrain()
});
var scene = viewer.scene;
var camera = viewer.camera;
var ellipsoid = scene.globe.ellipsoid;
var billboard;
var pin;
// Create a pin entity
pin = viewer.entities.add({
position: Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883),
billboard: {
image: 'https://cesium.com/docs/tutorials/images/Cesium_Logo_overlay.png',
verticalOrigin: Cesium.VerticalOrigin.BOTTOM,
scale: 0.5
}
});
// Create a billboard entity
billboard = viewer.entities.add({
position: Cesium.Cartesian3.fromDegrees(-75.69777, 40.13883),
billboard: {
image: 'https://cesium.com/docs/tutorials/images/Cesium_Logo_overlay.png',
verticalOrigin: Cesium.VerticalOrigin.BOTTOM,
scale: 0.5
}
});
function pin() {
// Set the pin's position
var cartographic = Cesium.Cartographic.fromCartesian(pin.position.getValue());
cartographic.height += 100.0;
var position = ellipsoid.cartographicToCartesian(cartographic);
pin.position.setValue(position);
// Set the pin's orientation
var heading = Cesium.Math.toRadians(90.0);
var pitch = Cesium.Math.toRadians(0.0);
var roll = Cesium.Math.toRadians(0.0);
var orientation = Cesium.Transforms.headingPitchRollQuaternion(position, new Cesium.HeadingPitchRoll(heading, pitch, roll));
pin.orientation.setValue(orientation);
}
function billboard() {
// Set the billboard's position
var cartographic = Cesium.Cartographic.fromCartesian(billboard.position.getValue());
cartographic.height += 100.0;
var position = ellipsoid.cartographicToCartesian(cartographic);
billboard.position.setValue(position);
// Set the billboard's orientation
var heading = Cesium.Math.toRadians(90.0);
var pitch = Cesium.Math.toRadians(0.0);
var roll = Cesium.Math.toRadians(0.0);
var orientation = Cesium.Transforms.headingPitchRollQuaternion(position, new Cesium.HeadingPitchRoll(heading, pitch, roll));
billboard.orientation.setValue(orientation);
}
</script>
</body>
</html>
```
这个示例代码中,我们创建了一个 Cesium Viewer,并且添加了钳击箭头。当你点击 Pin 按钮时,钳击箭头会被固定在地图上的一个点上,并且箭头的方向会指向另一个点。当你点击 Billboard 按钮时,钳击箭头会变成一个 Billboard 对象,并且箭头的方向也会指向另一个点。你只需要替换代码中的 access_token 和图片链接就可以运行这个示例了。
相关推荐
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)