What is the architectural geography of a triangular reflection in the weather?

The reflection of the triangle is the Louvre.

The east facade of the Louvre is about172m long and 28m high. According to a complete column, it is divided into three parts from top to bottom: the base is at the bottom, the middle is a two-story giant column, and then the eaves and parapets are above it. The main body is an empty colonnade formed by two columns. There are prominent parts at the center and both ends, which divide the inside into five sections. The protruding parts at both ends are decorated with pilasters, and the middle part is decorated with mountain flower chair columns, so the main shaft is very clear. There is a moat in front of the building and a bridge in front of it. The horizontal facade is divided into five left and right sections and three upper and lower sections, with the central section as the main part. The traditional French high-pitched roof was replaced by the Italian flat roof, and the east facade of the Louvre opened a small doorway on a high pedestal for people to enter and leave.