LandOptima LandOptima

Overview

Built a browser tool that captures building and lot footprints from satellite imagery by search or click, classifies them and exports one GeoJSON collection for a Tijuana highest-and-best-use dashboard.

Highlights

1. 01

   Replaced vertex-by-vertex polygon drawing with a search-or-click loop that pulls Google outlines, ML-derived Google Open Buildings footprints or OpenStreetMap footprints, degrading gracefully to manual drawing.

2. 02

   Wrote a DuckDB extractor that downloads only a city bounding box from the public Open Buildings bucket (79,746 Tijuana footprints at confidence ≥ 0.75 and ≥ 150 m²) instead of the full 178 GB dataset.

3. 03

   Defined a GeoJSON contract with typed plaza metadata and a single axis-order conversion module, and served the Maps API key from a local server rather than embedding it in the HTML.

Stack

• JavaScript (ES Modules)
• Google Maps JavaScript API
• Google Places API
• Google Open Buildings
• OpenStreetMap Overpass API
• DuckDB
• Python
• GeoJSON
• GIS