Yes, I just finished the construction. If the landlord simply makes a three-dimensional structure of noodles, folding it into a paper fan is the form of noodles. If you make a comprehensive composition and add points, lines and other elements, it depends on how big your paper fan is. Compared with other elements, the paper fan with a large proportion is a surface, and the paper fan with a small proportion is a point. In fact, whether it's a point or a surface, it's just a comparison ~