Difference between First and Third angle projection



Difference between First and Third angle projection

Distinguish, differentiate, compare and explain what is the Difference between First and Third angle projection. Comparison and Differences.

Difference between First and Third angle projection

S.No. First angle projection Third angle projection
1 An object is kept in the first quadrant. An object is assumed to be kept in the third quadrant.
2 Object lies between an observer and the plane of projection. The plane of projection lies between the observer and the object.
3 The plane of projection is assumed to be non-transparent. The plane of projection is assumed to be transparent.
4 Front (elevation) view is drawn above the XY line. Front (elevation) view is drawn below the XY line.
5 Top (plan) view is drawn below the XY line. Top (plan) view is drawn above the XY line.
6 Left view is projected on the right plane and vice versa. Left view is projected on the left plane itself.
7 It is followed in India and in European countries. It is followed in the USA.


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Difference between Third angle projection vs First

First vs Third angle projection

Differences between Third angle projection vs First

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