There are various vertical entities used to define space, such as walls, columns, partitions, frames, curtains, furniture, lamps, greening, etc. Vertical linear entity: the relationship between the space defined by vertical linear entity and the surrounding space is circulating, the vision is continuous, and human behavior is not blocked. Simplest Linear Entity-Independent Column Multiple linear entities enclose spatial vertical entities: Vertical entities have different enclosing feelings for space according to the number of vertical partitions or the height of vertical entities. In the interior design of dining building, a single vertical plane can be used to enclose the space and divide the empty space, and a vertical plane can also be used as the entrance interface, which is treated with emphasis from the shape to guide guests into the restaurant or restaurant. Single vertical partition: two vertical entities arranged in an L shape. U-shaped layout: two vertical plane entities arranged in parallel, the vertical plane reaches the line of sight height and the vertical plane is waist-high.