The line is connected, but the line is broken. Because paper-cut works are cut or carved on paper, hollowing out is necessary. Because of hollowing out, paper-cuts with public lines must be connected, and paper-cuts with bus lines must be broken. If you cut off some lines, the whole paper-cut will be fragmented and deformed. Thus, there is a structure that does not fall or cut.

This is an important feature of the art of paper-cutting, which pays great attention to lines, because the picture of paper-cutting is composed of lines. According to practical experience, the lines of paper-cutting can be summarized into five words: "round, sharp, square, missing and line". Requirements: "Round as autumn moon, sharp as wheat awn, square as blue brick, lacking as sawtooth, walking like beard." It can be said that lines are the basis of paper-cut modeling.

Extended data

Paper-cutting has been in a period of great development in the Tang Dynasty. In Du Fu's poem Peng ADB, there is a saying that "warm soup is enough for me and paper is enough for my soul", and the custom of evoking souls by paper-cutting has been circulated among the people at that time. The paper-cut in the Tang Dynasty, which is now in the British Museum, shows that the paper-cut at that time had a high level of manual art and a complete picture composition, expressing an ideal realm between heaven and earth.

Popular in the Tang Dynasty, the carved patterns of flowers and trees have the characteristics of paper-cutting. For example, the pattern of "Duiyang" in Masakura Hospital in Japan is a typical artistic expression of hand cutting. In the Tang dynasty, there was also block printing made of paper-cutting. People carved it into wax paper with thick paper, and then printed the dye on the cloth to form beautiful patterns.