Is taiji diagram a Taoist figure?

Yes, Tai Chi Map was handed down by Chen Xiyi, a famous Taoist in the Song Dynasty.

Taiji diagram, a fish of yin and yang, vividly embodies what Laozi said: things are negative and embrace yang, and rush into the air to think of peace. It also means that the cathode produces positive and the anode produces negative. The so-called Tao gives birth to one, two, three and three things; That is, infinity gives birth to Tai Chi, Tai Chi gives birth to two instruments, and Yin and Yang combine to give birth to everything. Although Taiji diagram was produced by Taoism, it perfectly embodies the main ideas of Taoism. So it's okay to be a Taoist figure.

Taoist views originated from the contention of a hundred schools of thought in the Spring and Autumn Period, and the representatives were Lao Zi and Zhuangzi. Later, on the concept of worship of ghosts and gods in ancient China, Taoism was formed on the basis of Taoist thoughts of Huangdi and Laozi, inheriting the immortal magic since the Warring States Period.