1) From the position point of view
The Forbidden City, located in the center of Beijing, has been planned according to the concept of "the emperor chooses the middle land" since the Zhou Dynasty.
(B) from the layout point of view
The planning and layout of the Palace of the Forbidden City inherited the traditional ritual system followed by emperors in China, the system made by emperors in the Zhou Dynasty, the modular system of palace buildings formed since the Tang and Song Dynasties and the standardization of the modular system in the Qing Dynasty, and the geomantic omen theory in the traditional culture of China, which is the perfect embodiment of the integration of ritual system, modular system and geomantic omen theory. The planning and layout centered on the Forbidden City shows the important position of the Forbidden City in Beijing. The design of the Forbidden City comes down in one continuous line with the palace buildings in China.
To the south of the meridian gate of the Forbidden City, the ancestral hall and the social altar are divided into east and west; The three main halls and the last two palaces in Miyagi are arranged in sequence on the central axis, which conforms to the system of "left ancestors and right houses", "sleeping in front of the court" and "three dynasties and two palaces". Except for a few offices, most of the bedrooms on both sides of the three main halls in the outer court are places for storing gold, silk, goods and documents, which is also in line with the idea in the Book of Rites Quli: "A gentleman sets up a palace first, then a temple, then a warehouse and then a bedroom". Outside the central axis of the Forbidden City, the palaces and service settings of the concubines, the Empress Dowager, the Emperor's Father, the Prince and the eldest grandson of the Sixth Palace are arranged according to the proper position of "Li" to form areas with different functions.
(C) From the architectural point of view
The square in front of Gan Qing, at the junction of the palace and the bedroom, is a relatively concentrated place that embodies the architectural etiquette norms of the Forbidden City. Baohe Hall in the south of the square is the last of the three halls facing the outside world, and its specification level is second only to that of Taihe Hall. Its overall width is 9 bays and its depth is 5 bays. Its double eaves rest on the top of the mountain, and its wings are equipped with 9 animals. Inside and outside eaves are painted with golden dragon seals and carved diamonds. Fan, located in the tall white marble "three episodes". Located at the southernmost tip of the harem, the Gan Qing Gate in the north is the main entrance of Gan Qing Palace, where emperors sleep. It has the width of 5 rooms and the depth of 3 rooms, resting on a single roof and white marble building on the top of the mountain. The glazed doors on the east and west sides of it-the inner left door and the inner right door-lead to the east and west long street respectively, which is an important passage to the east and west six palaces. Outside the army, Jiuqing offered a temple, which coincides with Zhou Li's so-called system of "nine rooms inside, nine wives inside, nine rooms outside, and nine wives facing each other". Jiuqing's courtyard house was plastered with polio tiles, and there was no fight? Hey? White target, cherry blossoms? Hey, hey, hey. What's wrong with you, brother? What happened?
According to the etiquette system of feudal society, it is inevitable that the Forbidden City takes yellow and red as the main colors of the building.
The emperor's demand for palace architecture is naturally that the overall spirit should be great, the building should be gorgeous, and the power and majesty of feudal emperors should be reflected as much as possible. In order to meet this requirement, in addition to the planning and layout of the building, the combination of spatial changes and the shaping of the architectural image, the contrast method is also applied in the architectural color. In chromatics, contrast refers to cold and warm contrast and complementary color contrast. The so-called complementary colors mean that when two colors are mixed and superimposed into white light, and two colors are fused together to become gray-black, these two colors or colors are called complementary colors, such as red and green, yellow and purple, blue and orange. Putting cold and warm colors or complementary colors together can set off each other, making it more lively and the effect more eye-catching. And because of the adjustment of human vision itself, the two contrasting colors are neutral and balanced. This contrast rule is widely used in the architecture of the Forbidden City. Under the blue sky, with a single yellow glazed tile roof, with turquoise painted and bright red palace walls, stone pillars, doors and windows, and with white stone foundations and dark ground, blue and yellow, green and red, white and gray-black form a strong contrast, resulting in an extremely bright and magnificent overall color effect of the palace building.