geo-micro

A zero-dependency, ultra-lightweight (<10KB) Python utility for GeoJSON sanitisation, coordinate order correction, bounding box calculations, and fast ray-casted point-in-polygon checks. Designed for AWS Lambda functions, microservices, and edge computing environments where heavy C-based libraries like Shapely or GDAL are overkill.

Features

• Zero External Dependencies
• Dirty Data Repair (string coordinates to floats and auto-closes unclosed polygon rings)
• Coordinate Swapper: ([Lat, Lng] to [Lng, Lat] and vice versa)
• Point-in-Polygon

Quickstart

from geomicro import GeoMicro, convert_coords

# 1. Fix Lat/Lng order for a list of coordinates
bad_coords = [[-27.468, 153.028], [-27.470, 153.030]]
fixed = convert_coords(bad_coords, mode="to_geojson")

# 2. Check containment and bounding boxes
polygon_feature = {
    "type": "Polygon",
    "coordinates": [[[153.0, -27.0], [154.0, -27.0], [154.0, -28.0], [153.0, -27.0]]]
}

geo = GeoMicro(polygon_feature)
print(geo.bbox()) # (153.0, -28.0, 154.0, -27.0)
print(geo.contains([153.5, -27.5])) # True