life2allsofts/tetteh-apotey-land-registry

A professional Cadastral Land Administration and GIS Web Application engineered specifically for Ghana's survey framework. Built on React 19, TypeScript, Leaflet, and Proj4, this application seamlessly integrates Ghana National Grid coordinates (War Office Transverse Mercator Projection) with modern WGS84 web mapping engines. # 🇬🇭 Ghana Land Registry Management System > 🚀 **Live Production Deployment**: tetteh-apotey-land-registry… A professional Cadastral Land Administration and GIS Web Application engineered specifically for Ghana's survey framework. Built on **React 19**, **TypeScript**, **Leaflet**, and **Proj4**, this application seamlessly integrates Ghana National Grid coordinates (War Office Transverse Mercator Projection) with modern WGS84 web mapping engines. The platform directly incorporates empirical regional transformation algorithms and research findings from **Isaac Tetteh-Apotey's** landmark paper: *Bridging the Desktop-Mobile Divide: Regional Optimization of Ghana's National Grid for Mobile and Web Applications* (Zenodo DOI: 10.5281/zenodo.18133088). --- ## 🚀 Key Features - **Ghana Grid Coordinate Conversion**: Bidirectional, real-time conversion between Ghana National Grid (Easting & Northing in Survey Feet, Gold Coast / Leigon Datum) and WGS84 (Latitude / Longitude). - **War Office Transverse Mercator Projection**: Custom `proj4` projection definition configured with central meridian $1^\circ \text{W}$, origin latitude $4.669382^\circ \text{N}$, false easting $274,291.3\text{ m}$ ($900,000\text{ ft}$), and false northing $0\text{ m}$. - **Interactive GIS Map (`MapView`)**: Multi-basemap Leaflet map support (Streets, Satellite Cadastral, Dark Canvas, Topographic Terrain) with interactive plot polygons, custom markers, popup infoboxes, and automatic boundary bounding-box zooming. - **Manual Cadastral Entry (`CoordinateEntry`)**: Live real-time boundary polygon previewing while typing, automated land area calculations (Acres, Hectares, Sq Feet, Sq Meters using the Shoelace formula), and tenure metadata attachment. - **CSV & Google Earth KML Import/Export (`CsvKmlImport`)**: Drag-and-drop batch loader for survey control points and site plans. Supports exporting individual or full-registry site plans to Google Earth KML format. - **Land Par …