The Geo Web Coordinate library defines the Geo Web's fixed global grid and coordinate system. It is the basis for the spatial definition of all Geo Web land parcels.
The system's grid lines create rectangular areas referred to as Geo Web Coordinates. Each Geo Web land parcel is an array of Geo Web Coordinates.
A single Geo Web Coordinate (yellow rectangle) on the Kovan testnet
In the testnet implementation, a larger grid size was used for more practical large land claims. Mainnet will use a grid size that balances transaction fees/size with enabling faithful representation of existing real world property lines.
The GeoWebParcelFacet uses the library defined in Geo Web Coordinate to traverse parcel paths and map coordinates to the word index.