| Oblique Projection |
Article Index for Oblique |
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Information AboutOblique Projection |
| CATEGORIES ABOUT OBLIQUE PROJECTION | |
| perspective projection | |
| technical drawing | |
| descriptive geometry | |
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WHAT IT IS ''Oblique projection'' is a type of angle to produce the projected image, as opposed to the perpendicular angle used in orthographic projection. Mathematically , the ''parallel projection'' of the point on the -plane gives . The constants and uniquely specify a parallel projection. When , the projection is ''orthographic''. Otherwise, it is ''oblique''. OBLIQUE PICTORIAL In an ''oblique pictorial'' drawing, the angles displayed among the axes, as well as the foreshortening factors (scale) are arbitrary. The resulting distortions make the Technique unsuitable for formal, working drawings. Nevertheless, the distortions are partially overcome by aligning one plane of the image parallel to the plane of projection. Doing so creates a true shape ( Isometric ) image of the chosen plane. ''Cabinet Projection'', popular in furniture illustrations, is an example of such a technique, wherein the receding axis is scale to half-size and drawn at an Angle of 45-degrees. SEE ALSO |
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