**Notation**

(TL) = a’b’1 (in FV) = ab2 (in TV)

A is above HP = a’ (↑)

A is below HP = a’ (↓)

A is in front of VP = a (→)

A is in behind VP = a (←)

Front View (FV) = a’b’

Top View (TV) = ab

Elevation Length (EL) = a’b2’

Plan Length (PL) = ab1

True inclination of line with HP = θ

True inclination of line with VP = Φ

Inclination of FV with XY line = α

Inclination of TV with XY line = β

**Given Data:**

True Length (TL) = a’b1’ = ab2 = 60 mm

A is 10 mm above HP = a’ (↑) = 10 mm

A is 15 mm in front of VP = a (→) = 15 mm

θ = 25°

Φ = 40°

**Follow the procedure given below step by step to draw the
projection of line:**

Draw XY line.

Mark a’ and a at 10 mm above XY line and 15 mm below XY
line respectively.

Draw horizontal line from locus of a’ and a.

Draw a line of true length (TL) = 60 mm from point a’ at an
angle of 25° (a’b1’).

Draw a line of true length (TL) = 60 mm from point a at an
angle of 40° (ab2).

Take the projection of b1’ into TV (Draw a vertical line from
point b1’) which will cut the horizontal line passing through
point a . Mark that point b1, ab1 is your plan length (PL).

Take the projection of b2 into FV (Draw a vertical line from
point b2) which will cut the horizontal line passing through
point a’ . Mark that point b2’, a’b2’ is your elevation length (EL).

Draw a horizontal line from point b1’, that is your locus of b’.

Draw a horizontal line from point b2, that is your locus of b.

Taking a’ as center and a’b2’ as radius draw an arc which will
cut the locus of b’, mark that point b’. Join a’b’, that is your FV.

Taking a as centre and ab1 as radius draw an arc which will
cut the locus of b, mark that point b. Join ab, that is your TV.