In this tutorial, we will talk about a real world use case on how to build a 3D model of a building based on what we have learned in the last tutorial.

User Guide

Steps required to build a 3D model with drones are:

1. launch Gazebo simulation environment;
2. takeoff the drone and record a rosbag;
3. command the drone to fly a circle around a typical building;
4. land the drone and process images from rosbag;
5. upload images to provided website.

See step-by-step guide at: https://gaas.gitbook.io/guide/build-your-own-autonomous-drone-part-2-build-a-3d-model-of-a-building-with-your-drone

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本讲中，我们将会介绍一个真实世界的无人机使用案例: 通过无人机机载摄像头构建建筑物3D模型。在接下来的部分里，我们会讲解如何基于上一讲的内容实现这一目的。

中文使用指南

1. 实现无人机 3D 建模包括以下5个步骤：
2. 启动 Gazebo 模拟器；
3. 起飞无人机并开始录制一个 rosbag;
4. 控制无人机围绕建筑物绕圆周飞行一圈；
5. 停止 rosbag 录制并使用提供的脚本提取图片；
6. 使用提供的网站构建模型（构建模型所需环境配置过于复杂，之后的教程会详细讲解）。

详细版点此查看：https://www.yuque.com/docs/share/62b8319f-ed1a-439c-a71a-b2e72b4806ca