Descriptive geometry is the branch of
geometry which allows the representation of three-dimensional objects in two dimensions, by using a specific set of procedures. The resulting techniques are important for
engineering,
architecture,
design and in
art. The theoretical basis for descriptive geometry is provided by
planar geometric projections.
Gaspard Monge is usually considered the "father of descriptive geometry". He first developed his techniques to solve geometric problems in 1765 while working as a draftsman for military fortifications, and later published his findings.