# amap-building-crawler

**Repository Path**: githubmirrors/amap-building-crawler

## Basic Information

- **Project Name**: amap-building-crawler
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2020-06-03
- **Last Updated**: 2020-12-19

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# amap-building-crawler

A crawler project for fetching 3d building data from amap and tramsform its to GeoJSON.<br>
高德地图3D建筑信息爬虫项目，用于爬取高德地图的 3D 建筑物数据，并将其转存为 GeoJSON 数据格式


## Doc

#### 1. Clone remote codes to local, then use the `yarn` command to install the project in local directory.
#### 2. Execute `mkdir dist` in the project root directory (do not need to do this if the directory already exists).
#### 3. Rewrite the latitude and longitude range in `index.js` file where you want to crawl the data (upper left corner & bottom right corner).
```
const lnglatRange = [
  [118.01307678222655, 24.596143627409358],
  [118.15830230712889, 24.452462684995407],
];
```
#### 4. Execute `yarn start` in the project root directory, the retrieved data will be stored in the `dist` directory as a `.geojson` file.


## 说明


#### 1. clone 代码到本地，根目录使用 `yarn` 命令安装项目
#### 2. 项目根目录下执行 `mkdir dist`（若目录已存在则不需要）
#### 3. 修改 `index.js` 文件中需要爬取的坐标经纬度范围：
```
// 需要爬取的经纬度范围（左上角、右下角）
const lnglatRange = [
  [118.01307678222655, 24.596143627409358],
  [118.15830230712889, 24.452462684995407],
];
```
#### 4. 项目根目录下执行 `yarn start`，爬取的 `.geojson` 数据将存储到 `dist` 目录下