Editing 3D projection (section)

{{Short description|Design technique}}
{{Other uses|Projection (disambiguation)}}
{{improve lead|date=July 2019}}
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A '''3D projection''' (or '''graphical projection''') is a [[Design|design technique]] used to display a three-dimensional (3D) object on a two-dimensional (2D) surface. These projections rely on [[perspective (graphical)|visual perspective]] and aspect analysis to [[Projection mapping|project]] a complex object for viewing capability on a simpler plane.

3D projections use the [[Primary Qualities|primary qualities]] of an object's basic shape to create a map of points, that are then connected to one another to create a visual element. The result is a graphic that contains conceptual properties to interpret the figure or image as not actually flat (2D), but rather, as a solid object (3D) being viewed on a 2D display.

3D objects are largely displayed on two-dimensional mediums (such as paper and computer monitors). As such, graphical projections are a commonly used design element; notably, in [[engineering drawing]], [[technical drawing|drafting]], and [[computer graphics]]. Projections can be calculated through employment of mathematical analysis and formulae, or by using various [[Geometry|geometric]] and optical techniques.