What are the morphological elements of plane composition?

The elements of plane composition include conceptual elements (points, lines and surfaces), visual elements (basic shapes) and relational elements (combined forms).

Conceptual elements refer to those concepts that don't actually exist, can't be seen, and can only be felt in the mind. For example, we will feel that there is a point on the sharp corner and an outline on the edge of the object. The space surrounded by lines is called a surface. Its function is to promote the formation of visual elements.

Visual elements refer to the conceptual elements in the picture, that is, the basic unit image of the design form composed of the basic elements of points, lines and surfaces, or the embodiment of the concrete image called the basic form through the visible shape, size, position, color, direction and texture.

Relational elements refer to the combination of visual elements (that is, basic modeling), which are embodied by factors such as frame, bone, space, center of gravity, reality and existence. The most important factor is bone, which can be seen, and other factors depend on feeling.