Géométrie descriptive

In Géométrie descriptive (1799; “Descriptive Geometry”), based on his lectures at the École Normale, he developed his descriptive method for representing a solid in three-dimensional space on a two-dimensional plane by drawing the projections—known as plans, elevations, and traces—of the solid on a sheet of paper.…

…an extensive development, the book Géométrie descriptive (1798) by Gaspard Monge, an 18th-century French mathematician, is regarded as the first exposition of descriptive geometry and the formalization of orthographic projection. The growth and development of the drafting profession were favoured by the application of the concepts published by Monge, the…