Partes ipsius architecturae sunt tres: aedificatio, gnomonice, machinatio. Aedificatio autem divisa est bipertito, e quibus una est moenium et communium operum in publicis locis conlocatio, altera est privatorum aedificiorum explicatio.
The parts of architecture itself are three: Building, Dialling, and Mechanics. Building in turn is divided into two parts; of which one is the placing of city walls, and of public buildings on public sites;  the other is the setting out of private buildings.
final_alignments\Vitruvius_Architecture_Book_1.json