projections of planes : lect 01
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Unit No:04Projections of Planes
Yash B. ParikhM.Tech. (CIM)
Assistant ProfessorDepartment of Mechanical Engineering
Symbiosis Institute of Technology
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What is a Plane?
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What is a Plane?
In mathematics. a plane is a flat, two-dimensional surface.
It can also defined as an abstract surface which has infinite width and length, zero thickness, and zero curvature.
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Introduction
A Plane is a two dimensional entity having only length and breadth with negligible thickness (which is considered as zero).
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Shapes of Planes
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Types of Planes
Planes may be divided as two main types. They are :
(I) Perpendicular Planes
(II) Oblique Planes.
(I) Perpendicular Planes :
Planes which are perpendicular to any one of the principal planes of projection are called as perpendicular planes.
These planes may be inclined or parallel to the other principal plane.
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Types of Planes
(II) Oblique Plane :
Here Planes are inclined to both the reference planes.
Projections of such planes are drawn in three stages.
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Various Positions of Perpendicular Planes
(a) Plane is Perpendicular to V.P. & Parallel to H.P.
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Various Positions of Perpendicular Planes
(b) Plane is Perpendicular to H.P. & Parallel to V.P.
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Various Positions of Perpendicular Planes
(c) Plane is Perpendicular to both H.P. & V.P.
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Various Positions of Perpendicular Planes
(d) Plane is inclined to H.P. & Perpendicular to V.P.
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Various Positions of Perpendicular Planes
(e) Plane is inclined to V.P. & Perpendicular to H.P.
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Thank You
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