The "shape" in the field of composition is a relative concept. German psychologists put forward the theory of “Gestalt psychology” in the early 20th century. They believe that humans will automatically fill in missing parts of shapes when they engage in cognitive activities, and then they will recognize this shape of view. The basic theory is that the viewer does not see all the elements one by one, and then form an integral whole. Instead, we see the whole and an integration of the necklace. It plays a transformation in visual of a graph but also carries the state of being strong and vital.

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