What is axis composition, three-point composition and swing?

These are terms of artistic principles, which are aimed at plane drawing and painting. The so-called axis is naturally the line of the central axis, that is, the center line. Axis composition is to arrange the main objects based on the central axis. Three-point composition is called the old composition method, but it can give people a positive feeling that the scenery in the picture can be connected into a triangle along its outer edge, and this triangle has three points.

I am a student of the Central Academy of Fine Arts, and I have only a little knowledge. But if you have any questions, if you can help me, do your best.

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