Web Front-endJS TutorialUse JavaScript and Tencent Maps to implement map 3D flight effect functionUse JavaScript and Tencent Maps to implement map 3D flight effect function
Use JavaScript and Tencent Maps to realize the 3D map flight effect function
Introduction
In modern web applications, how to use JavaScript and Tencent Maps to realize the 3D map flight effect Functionality is a hot topic. This feature can provide users with an interactive experience that is different from traditional two-dimensional maps, allowing them to gain a deeper understanding of geographic information. This article will introduce how to use the Three.js library and Tencent Map API in JavaScript to achieve a simple map 3D flight effect.
- Preparation
Before we start writing code, we need to prepare some necessary tools and resources. First, we need an access key with a Tencent Maps developer account, which will be used to obtain map data. Then, we need to download the latest version of the Three.js library, which is used to create and render 3D scenes. Finally, we need some basic knowledge of HTML and CSS to be able to create a simple web page. - HTML structure
First, we need to create an HTML page and introduce the Three.js library and Tencent Map API inside it. We also need to create a div element for the map container to hold the map.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>地图3D飞行效果</title>
<style>
#mapContainer {
width: 100vw;
height: 100vh;
}
</style>
</head>
<body>
<div id="mapContainer"></div>
<script src="https://cdn.bootcdn.net/ajax/libs/three.js/110/three.min.js"></script>
<script src="https://map.qq.com/api/js?v=2.exp&key=your_api_key"></script>
<script src="app.js"></script>
</body>
</html>- JavaScript code
Next, we need to create a JavaScript file named "app.js" and write the code to achieve the 3D flight effect of the map. First, we need to create a Three.js scene and set up the camera and light source. Then, we need to get the map data from the Tencent Map API and convert it into an object in Three.js. Finally, we can use the animation capabilities provided by Three.js to fly the camera from one location to another.
// 创建Three.js场景
const scene = new THREE.Scene();
// 创建相机
const camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
camera.position.z = 5;
// 创建光源
const light = new THREE.HemisphereLight(0xffffff, 0x000000, 1);
scene.add(light);
// 创建渲染器
const renderer = new THREE.WebGLRenderer({ antialias: true });
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);
// 腾讯地图API获取地理坐标数据
const map = new qq.maps.Map(document.getElementById("mapContainer"), {
center: new qq.maps.LatLng(23.1291, 113.2644),
zoom: 14,
draggable: false
});
// 将地理坐标转换为Three.js中的坐标
function convertToThreeJsLatLng(latLng) {
const x = latLng.getLng();
const y = latLng.getLat();
return new THREE.Vector3(x, 0, y);
}
// 飞行函数
function flyTo(target) {
const start = camera.position.clone(); // 获取当前相机位置
const end = convertToThreeJsLatLng(target); // 将目标地理坐标转换为Three.js坐标
const distance = start.distanceTo(end); // 计算相机与目标之间的距离
const duration = distance * 1000; // 根据距离计算飞行时间
// 使用Tween.js创建动画效果
new TWEEN.Tween(start)
.to(end, duration)
.onUpdate(() => {
camera.position.copy(start);
})
.start();
}
// 动画循环
function animate() {
requestAnimationFrame(animate);
TWEEN.update();
renderer.render(scene, camera);
}
// 初始化飞行
function init() {
// 添加目标点
const target = new qq.maps.LatLng(23.1469, 113.3318);
map.setCenter(target);
flyTo(target);
animate();
}
// 页面加载完成后执行初始化函数
window.addEventListener("load", init);
- Running effect
Open the HTML file in the browser and you will see a page with a map 3D flight effect. The camera will fly from the starting position to the target position, providing a dynamic visual experience. You can also customize the starting and target positions, and adjust the speed of flight.
Summary
This article introduces how to use JavaScript and Tencent Map API to implement the map 3D flight effect function. By using the Three.js library and Tencent Map API, we are able to create a map scene with dynamic flight effects. I hope this article is helpful for you to learn and understand this feature. If you have any questions or concerns, please feel free to leave a comment below.
The above is the detailed content of Use JavaScript and Tencent Maps to implement map 3D flight effect function. For more information, please follow other related articles on the PHP Chinese website!
From C/C to JavaScript: How It All WorksApr 14, 2025 am 12:05 AMThe shift from C/C to JavaScript requires adapting to dynamic typing, garbage collection and asynchronous programming. 1) C/C is a statically typed language that requires manual memory management, while JavaScript is dynamically typed and garbage collection is automatically processed. 2) C/C needs to be compiled into machine code, while JavaScript is an interpreted language. 3) JavaScript introduces concepts such as closures, prototype chains and Promise, which enhances flexibility and asynchronous programming capabilities.
JavaScript Engines: Comparing ImplementationsApr 13, 2025 am 12:05 AMDifferent JavaScript engines have different effects when parsing and executing JavaScript code, because the implementation principles and optimization strategies of each engine differ. 1. Lexical analysis: convert source code into lexical unit. 2. Grammar analysis: Generate an abstract syntax tree. 3. Optimization and compilation: Generate machine code through the JIT compiler. 4. Execute: Run the machine code. V8 engine optimizes through instant compilation and hidden class, SpiderMonkey uses a type inference system, resulting in different performance performance on the same code.
Beyond the Browser: JavaScript in the Real WorldApr 12, 2025 am 12:06 AMJavaScript's applications in the real world include server-side programming, mobile application development and Internet of Things control: 1. Server-side programming is realized through Node.js, suitable for high concurrent request processing. 2. Mobile application development is carried out through ReactNative and supports cross-platform deployment. 3. Used for IoT device control through Johnny-Five library, suitable for hardware interaction.
Building a Multi-Tenant SaaS Application with Next.js (Backend Integration)Apr 11, 2025 am 08:23 AMI built a functional multi-tenant SaaS application (an EdTech app) with your everyday tech tool and you can do the same. First, what’s a multi-tenant SaaS application? Multi-tenant SaaS applications let you serve multiple customers from a sing
How to Build a Multi-Tenant SaaS Application with Next.js (Frontend Integration)Apr 11, 2025 am 08:22 AMThis article demonstrates frontend integration with a backend secured by Permit, building a functional EdTech SaaS application using Next.js. The frontend fetches user permissions to control UI visibility and ensures API requests adhere to role-base
JavaScript: Exploring the Versatility of a Web LanguageApr 11, 2025 am 12:01 AMJavaScript is the core language of modern web development and is widely used for its diversity and flexibility. 1) Front-end development: build dynamic web pages and single-page applications through DOM operations and modern frameworks (such as React, Vue.js, Angular). 2) Server-side development: Node.js uses a non-blocking I/O model to handle high concurrency and real-time applications. 3) Mobile and desktop application development: cross-platform development is realized through ReactNative and Electron to improve development efficiency.
The Evolution of JavaScript: Current Trends and Future ProspectsApr 10, 2025 am 09:33 AMThe latest trends in JavaScript include the rise of TypeScript, the popularity of modern frameworks and libraries, and the application of WebAssembly. Future prospects cover more powerful type systems, the development of server-side JavaScript, the expansion of artificial intelligence and machine learning, and the potential of IoT and edge computing.
Demystifying JavaScript: What It Does and Why It MattersApr 09, 2025 am 12:07 AMJavaScript is the cornerstone of modern web development, and its main functions include event-driven programming, dynamic content generation and asynchronous programming. 1) Event-driven programming allows web pages to change dynamically according to user operations. 2) Dynamic content generation allows page content to be adjusted according to conditions. 3) Asynchronous programming ensures that the user interface is not blocked. JavaScript is widely used in web interaction, single-page application and server-side development, greatly improving the flexibility of user experience and cross-platform development.
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.
Atom editor mac version download
The most popular open source editor
SublimeText3 Linux new version
SublimeText3 Linux latest version
DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software
mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),
