orthographic projection: Quick Facts

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Facts

Also Known As	orthogonal projection

Photos

isometric drawing, 2-dimensional orthographic projections, 3-dimensional isometric projection

Figure 1: Two techniques of representing an object. (A) Perspective drawing, suggesting that the object is cubical. (B) Orthographic top and front views, revealing that the object is not cubical.

Figure 2: Orthographic projections of a three-dimensional object onto vertical and horizontal planes. (A) Object located in the first of four quadrants defined by intersecting planes. (B) Result of rotating the horizontal plane into coincidence with the vertical plane. (C) The same object located in the third quadrant. (D) Result of rotating the horizontal plane as in (B), showing exchanged positions of top and front views.

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Topics

isometric drawing oblique projection Perspective projection mapping descriptive geometry drafting azimuthal projection