What are the rules of photographic composition?

Photographic composition rules are as follows:

1, three-part composition, which divides the left and right sides of the picture into two parts in a ratio of two to one, forming a left-right echo or an up-and-down echo, with a vast performance space, one part of the picture is the main body and the other half is the companion;

2. Symmetrical composition has the characteristics of balance, stability and relativity, but its disadvantages are rigidity and lack of change;

3. Diagonal composition, the main body is arranged diagonally, which can effectively use the diagonal length of the picture, and at the same time make the companion have a direct relationship with the main body, which is easy to produce the convergence trend of lines, attract people's attention and achieve the effect of highlighting the main body;

4, triangle composition, with three visual centers as the main position of the scene, three points into one side of the geometric form to arrange the scene.