Daniel-eng06/Land-Commission-Ghana

# Polygon Workspace Tool Ghana Offline land polygon coordinate processing tool for Ghana. ## Features - ✅ Manual or pasted polygon coordinate input - ✅ Automatic mean coordinate calculation - ✅ QR code generation for polygon coordinates and GAPA number - ✅ Barcode generation for mean coordinates and job codes - ✅ Single-page A4 PDF export - ✅ Fully offline (no backend, no APIs, no database) - ✅ Editable inputs with live preview ## Installation 1. Install dependencies: ```bash npm install ``` 2. Start the development server: ```bash npm start ``` 3. Open browser at `localhost` ## Usage 1. **Input Polygon Coordinates** - Paste coordinates in format: `lat, lng` per line - Click "Parse Coordinates" to validate 2. **Enter GAPA Number** - Input the GAPA number in the text field 3. **Calculate Mean** - Click "Calculate Mean" to compute mean coordinates - Mean value displays before generation 4. **Generate Codes** - Click "Generate Codes" to create all QR codes and barcodes - Preview appears on the right side (A4 layout) 5. **Export PDF** - Click "Export to PDF" to download the A4 document - File is saved with GAPA number and timestamp ## Build for Production ```bash npm run build ``` The `build` folder will contain the production-ready files that can be hosted on any static file server or opened directly in a browser (file://). ## Technical Stack - React 18 (JavaScript only) - qrcode.react (QR code generation) - JsBarcode (barcode generation) - jsPDF + html2canvas (PDF export) - Pure CSS (no frameworks) ## License For internal use in Ghana only.