A map designed to represent shifting power structures in the early Islamic empire.
Power structure data is entered in an Excel file (data/Empire structure maps.xlsx).
Coordinates are provided by a kml file (data/empire structure_cities.kml).
Data is then extracted from the three xlsx and kml files by a Python script (xlsx2geojson.py) and converted to geojson files. These are then packaged as javascript files to facilitate importing into the html file (PowerLines.html).