Does the lotus flying caisson belong to two-way continuous type or four-way continuous type?

This is a continuous pattern of squares. Lotus Tian Fei caisson is a kind of lotus caisson, which is a square well with lotus and Tian Fei as the main flowers. This algae well is the most gorgeous in the early Tang Dynasty. It consists of well core, decoration outside the well and hanging curtain. The heart of the well is painted as a Da Lian, with lotus petals 14 curled, and 14 cirrus veins around the lotus plumule. The four corners of the square well correspond to the center, and draw each corner of the lotus. The outer edge of the lotus has pomegranate patterns. These ingenious combinations make the lotus with simple shape extremely gorgeous and rich. Around the central lotus, on a dark blue background, four-legged flying flowers are painted. They danced lightly in the blue sky, and floating clouds flowed around them.