Python code for a demo in geofencing in QGIS
Program to model geofences in QGIS!
1. Open blank QGIS project
3. Set projection to British grid, EPSG code 277000
4. Use the map to x = 512915 y = 120728 (first coordinate to be plotted), I use Openstreetmap to zoom out a bit shots will increment 12.5m
5. Run the script (you could add the shapefile boundary if you want)