Surface fusion blanking method and device based on BIM model, equipment and medium

The invention provides a surface fusion blanking method and device based on a BIM model, equipment and a medium. The method comprises the steps of obtaining a first component and a second component which have a geometrical relationship in the BIM model; extracting a first boundary representation body corresponding to the first component and a second boundary representation body corresponding to the second component; respectively updating the first boundary representation body and the second boundary representation body based on coplane overlapped edges of the two boundary representation bodies to obtain a first overlapped edge pair which is completely overlapped; and rendering and drawing the first overlapped edge pair based on the display attributes of the first component and the second component. According to the method, boundary representation bodies with blanking requirements in the rendering process are screened through coplane coincident edge pairs to obtain completely coincident coincident edge pairs s