"Single unitization" actually means that every object we want to manage individually is a single entity that can be selected, attributes can be attached, statistics can be queried and so on.

Due to its generating technology mechanism, the oblique photography automatic modeling has a "skin of skin", which cannot be implemented for GIS operations such as building selection, attribute query, spatial query, and thematic map operation. Only with the ability to “single” can data be managed, not just viewed.