Model for Descriptive Geometry by A. Jullien - Image (Rotation) of Any Plane

Jullien, A. · ca 1880

Plane APA’ is any plane in space with point (m, m’). The two red strings, the black string and the horizontal wire are all lines on the plane. Vertical and horizontal projections are given, as well as the results of rotation of the plane about lines AP, nm, cn, and ce.