vue 使用three3d模型 在模型上添加标注
时间: 2024-04-14 21:26:55 浏览: 222
基于vue的三维模型加载插件
在Vue中使用Three.js库来渲染3D模型,并在模型上添加标注的过程如下:
1. 安装Three.js和Vue-Three.js依赖:
```bash
npm install three vue-threejs
```
2. 创建一个Vue组件,命名为`ThreeModel`:
```vue
<template>
<div ref="container"></div>
</template>
<script>
import * as THREE from 'three';
import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls';
export default {
name: 'ThreeModel',
mounted() {
// 创建场景
const scene = new THREE.Scene();
// 创建渲染器
const renderer = new THREE.WebGLRenderer();
renderer.setSize(this.$refs.container.offsetWidth, this.$refs.container.offsetHeight);
this.$refs.container.appendChild(renderer.domElement);
// 创建相机
const camera = new THREE.PerspectiveCamera(75, this.$refs.container.offsetWidth / this.$refs.container.offsetHeight, 0.1, 1000);
camera.position.z = 5;
// 添加控制器
const controls = new OrbitControls(camera, renderer.domElement);
// 添加3D模型
const loader = new THREE.GLTFLoader();
loader.load('path/to/your/model.gltf', (gltf) => {
scene.add(gltf.scene);
// 在模型上添加标注
const label = this.createLabel('Your Label');
gltf.scene.add(label);
});
// 添加灯光
const light = new THREE.DirectionalLight(0xffffff, 1);
light.position.set(0, 1, 1).normalize();
scene.add(light);
// 渲染场景
function animate() {
requestAnimationFrame(animate);
renderer.render(scene, camera);
}
animate();
},
methods: {
createLabel(text) {
const canvas = document.createElement('canvas');
const ctx = canvas.getContext('2d');
ctx.font = 'Bold 24px Arial';
ctx.textAlign = 'center';
ctx.fillStyle = 'rgba(255, 255, 255, 0.9)';
ctx.fillText(text, canvas.width / 2, canvas.height / 2);
const texture = new THREE.CanvasTexture(canvas);
const material = new THREE.SpriteMaterial({ map: texture });
const sprite = new THREE.Sprite(material);
sprite.scale.set(2, 1, 1);
return sprite;
},
},
};
</script>
<style>
#container {
width: 100%;
height: 100%;
}
</style>
```
3. 在父组件中使用`ThreeModel`组件:
```vue
<template>
<div>
<ThreeModel />
</div>
</template>
<script>
import ThreeModel from './ThreeModel.vue';
export default {
components: {
ThreeModel,
},
};
</script>
```
请确保将路径`path/to/your/model.gltf`替换为实际的模型文件路径。在`createLabel`方法中,您可以根据需要自定义标注的样式和内容。
这样,您就可以在Vue中使用Three.js来渲染3D模型,并在模型上添加标注了。
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