What about the structure of calligraphy characters?

The structure of calligraphy, also known as writing/tying/tying method, is one of the three elements of calligraphy (brushwork, typing and composition). The structure or frame structure of Chinese characters refers to the length, straightness, angle and relative position of strokes, as well as the forms and laws of collocation, arrangement and combination of strokes in Chinese characters. For regular script, the structure of characters is more important. These laws and regulations were called "statutes" by the ancients, and many calligraphers summarized these statutes in detail.