Is it a violation of the right to portrait to take pictures without my consent?

Legal analysis: illegal. It constitutes a violation of the right to portrait, which is the right of citizens to agree or disagree to use their own portraits. The law stipulates that the portrait of a citizen shall not be used without his consent. Documentary photography works can't be published or exhibited even if they are purely non-profit exhibitions without permission.

Legal basis: Article 10 18 of the Civil Code of People's Republic of China (PRC). No organization or individual may use information technology to deface, deface or forge others' portrait rights. No portrait shall be made, used or made public without the consent of the owner of the portrait, except as otherwise provided by law. Without the consent of the portrait owner, the portrait owner shall not use or disclose the portrait of the portrait owner by publishing, copying, distributing, renting or exhibiting.