3D building modeling is one of the most important applications in photogrammetry and remote sensing. Airborne LiDAR (Light Detection And Ranging) is one of the primary information sources for building modeling. In this paper. a new data-driven method is proposed for 3D building modeling of flat roofs. https://www.ealisboa.com/quick-buy-Acer-shirasawanum-Green-Snowflake-Weeping-Full-Moon-Japanese-Maple-great-pick/