# City GeoJSON Files

This directory contains GeoJSON files for each city in Jilin province. Each file should be named after its corresponding city (e.g., `长春市.json`, `吉林市.json`, etc.) and contain the district-level geographical data for that city.

## File Structure

Each GeoJSON file should follow this structure:

```json
{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {
        "name": "区县名称",
        "code": "行政区划代码"
      },
      "geometry": {
        "type": "Polygon",
        "coordinates": [[[经度, 纬度], ...]]
      }
    },
    ...
  ]
}
```

## Cities

- 长春市.json
- 吉林市.json
- 四平市.json
- 辽源市.json
- 通化市.json
- 白山市.json
- 松原市.json
- 白城市.json
- 延边自治州.json

## Data Source

The GeoJSON data should be obtained from official sources or reliable geographic data providers to ensure accuracy. 