Geoskill: Vector Convert
Convert vector GIS data between Shapefile, GeoJSON, KML, GPX, GeoPackage, and CSV formats using only Python standard library with CRS and clipping options.
ruiduobao
@ruiduobao
What This Skill Does
Converts between vector GIS formats (Shapefile, GeoJSON, KML, GPX, GeoPackage, CSV) using only Python standard library. Supports CRS transformation, coordinate precision control, field filtering, and bounding box clipping.
Replaces installing heavy GIS libraries like GDAL or Fiona by providing a zero-dependency Python script for common vector format conversions.
When to Use It
- Convert a Shapefile to GeoJSON for web mapping
- Transform coordinate reference system from EPSG:4326 to EPSG:3857
- Filter a GeoJSON to keep only specific attribute fields before export
- Clip a GPX file to a bounding box for a specific geographic area
- Inspect metadata (feature count, CRS, bounds) of a vector file without opening a GIS application
Install
$ openclaw skills install @ruiduobao/vector-convertVector Format Converter
Convert between vector GIS formats using only Python standard library.
Supported Formats
| Format | Extension | Read | Write |
|---|---|---|---|
| Shapefile | .shp | Yes | Yes |
| GeoJSON | .geojson/.json | Yes | Yes |
| KML | .kml | Yes | Yes |
| GPX | .gpx | Yes | Yes |
| GeoPackage | .gpkg | Yes | Yes |
| CSV | .csv | Yes | Yes |
Installation
Zero external dependencies. Requires Python 3.8+.
Usage
Convert between formats
python vector-convert.py input.shp --to geojson -o output.geojson
python vector-convert.py input.geojson --to shp -o output.shp
python vector-convert.py input.kml --to gpkg -o output.gpkg
Show file info
python vector-convert.py input.shp --info
CRS transformation
python vector-convert.py input.shp --to geojson --crs EPSG:3857
Coordinate precision
python vector-convert.py input.geojson --to csv --precision 4
Filter fields
python vector-convert.py input.geojson --to csv --fields name,type,population
Clip to bounding box
python vector-convert.py input.shp --to geojson --bbox -180 -90 180 90
Features
- Auto-detect: Input format detected from file extension
- CRS transform: Convert between EPSG codes (4326, 3857, etc.)
- Precision control: Round coordinates to N decimal places
- Field filtering: Keep only specified property fields
- Bbox clipping: Filter features intersecting a bounding box
- Info mode: Display feature count, CRS, bounds, and field names
- Binary parsing: Reads SHP/DBF/SHX/PRJ files manually
- GeoPackage: Reads/writes SQLite-based GPKG format
Testing
pytest tests/ -v
License
MIT-0 (No Attribution)
中文说明
矢量 GIS 格式转换工具，仅使用 Python 标准库，零外部依赖。
支持的格式
| 格式 | 扩展名 | 读 | 写 |
|---|---|---|---|
| Shapefile | .shp | 是 | 是 |
| GeoJSON | .geojson/.json | 是 | 是 |
| KML | .kml | 是 | 是 |
| GPX | .gpx | 是 | 是 |
| GeoPackage | .gpkg | 是 | 是 |
| CSV | .csv | 是 | 是 |
使用方法
# 格式转换
python vector-convert.py input.shp --to geojson -o output.geojson
python vector-convert.py input.geojson --to shp -o output.shp
python vector-convert.py input.kml --to gpkg -o output.gpkg
# 查看文件信息
python vector-convert.py input.shp --info
# CRS 转换
python vector-convert.py input.shp --to geojson --crs EPSG:3857
# 坐标精度控制
python vector-convert.py input.geojson --to csv --precision 4
# 字段筛选
python vector-convert.py input.geojson --to csv --fields name,type,population
# 按边界框裁剪
python vector-convert.py input.shp --to geojson --bbox -180 -90 180 90
特性
- 自动检测输入格式（按扩展名）
- 支持 CRS 转换（EPSG:4326、EPSG:3857 等）
- 坐标精度控制
- 字段筛选
- 边界框裁剪
- 手动解析 SHP/DBF/SHX/PRJ 文件
- 支持 GeoPackage（SQLite 格式）
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