The renovation, rectification, and decoration of the facades or interiors of many old houses is usually a huge workload, and the first thing to bear the brunt is measurement. If the traditional operation method is used, more manpower and time are required. With the continuous development and innovation of science and technology, Leica BLK3D provides us with a lightweight and visualized building facade measurement method, which can quickly and accurately obtain facade data.

CityEngine was originally designed and developed by Pascal Mueller from Switzerland. He invented a breakthrough programmatic modeling technology during his doctoral study in the computer vision laboratory at ETH Zurich. This technology was mainly used for three-dimensional architectural design, which also laid a solid foundation for CityEngine. In 2001, he published a research article "Procedural Modeling of Cities" in SIGGRAPH. This also meant CityEngine had been officially out of the lab.