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directions, generally at right angles to each other and
arranged relative to each other in a definite way. Each of
the views shows the shape of the object for a particular
view direction and collectively the views describe the
object completely.


  1. Pictorial view, in which the object is oriented behind and
    projected up on a single plane. Either oblique on
    perspective projection is used.


5.2.1. Orthographic Projection


A. Definition


Basically, Orthographic projection could be defined as any
single projection made by dropping perpendiculars to a plane.
In short, orthographic projection is the method of representing
the exact shape of an object by dropping perpendiculars from
two or more sides of the object to planes, generally at right
angles to each other; collectively, the views on these planes
describe the object completely.


Descriptive geometry is basically the use of orthographic
projection in order to solve for advanced technical data
involving the spatial relation ship of points, lines, planes, and
solid shapes. The most common means of understanding
these types of orthographic projection is The Glass Box
method.

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