according to the different spatial position, the functions are different, and the optimal size to be designed is also different.
The most common is the brick-carved shadow wall facing the gate. The best design size is relatively fixed. Simply put, the width is close to the gate. If it is too wide, it is difficult to see the complete brick-carved pattern of the shadow wall from the outside. If it is too narrow, it is very stingy and can't block the scenery in the hospital. After all, the basic function of the shadow wall is to block the interior view of the hospital and prevent people passing by from seeing it directly.
the same is true for looking at the wall outside the gate. The height needs to be based on the width. The height of the wide-point zhaobi is not suitable to be too low, and the too wide zhaobi does not need to be too high. For example, the famous glazed Jiulong Wall, which is tens of meters long, is still only a little higher than the height of ordinary zhaobi.
many shadow walls are also used for gables. In addition to the shadow wall that is not common now, there is another kind that is embedded in the wall. In ancient times, it was called "box", which means that brick carvings were built on the wall to surround the city in a rectangular shape and look like a box.
gables generally take care of people's visual experience. The display of modern computers is in the most comfortable proportion for human beings, so we can consider the width: 16: 9 or 4: 3, which are both good choices. The width of gables should be close to the width of walls, leaving a gap beside them, but the gap should not be too wide.
Extended information:
The shadow wall can be located inside or outside the gate, the former is called the inner shadow wall and the latter is called the outer shadow wall. Shapes are zigzag, splayed, etc., usually made of bricks, consisting of three parts: seat, body and top. The seat has a sumeru seat. The central area of the wall body is called the shadow wall center, and the shadow wall center in China and Viet Nam is usually made of square bricks laid at an oblique angle of 45 degrees.
A simple screen wall may not be decorated, but it must be polished and sewn neatly. Luxury screen walls are usually decorated with many brick carvings with auspicious patterns. The brick carvings on the screen wall mainly have the center and four corners of the central area, and there are also mixed owls and lianzhu at the intersection with the roof.
One side of the central square brick is carved with a central flower, and the corner is inlaid with a brick plaque with the word "Blessed Birthday" in the center of the shadow wall, or a brick carving with good luck.
Some relatively simple shadow walls may not have three parts, some have no base, and some have no roof. The simplest one is only the wall body, and some walls have no boundary between the outer edge and the wall center. For example, some shadow walls in Ryukyu architecture are just simple stone walls. Famous screen walls include the Nine Dragon Wall of the Forbidden City and the screen wall for serving the people in xinhua gate, Zhongnanhai.