Roof model generation method and device and electronic equipment

The invention provides a roof model generation method and device and electronic equipment, and the method comprises the steps: obtaining an initial house model, and determining a roof plane of the initial house model; moving the edge line in the roof plane to the center of the roof plane, and obtaining a roof side line according to the moved edge line; according to the roof sidelines and the roof plane, generating a roof facade model comprising a bottom surface structure and a top surface structure; according to roof vertexes in the top surface structure and the bottom surface structure, the placement position of the prefabricated roof model and the scaling of the prefabricated roof model are determined in the bottom surface structure; and according to the placement position and the scaling, the prefabricated roof model is placed at the placement position of the bottom surface structure, and a final roof model is obtained. According to the mode, the roof facade model can be automatically generated according t