# PROJECTION OF POINTS CLASS NOTES FOR ENGINEERING

## CLASS NOTES FOR ENGINEERING

### by a small alphabet without a dash as ‘a’.

#### Vertical Plane (VP) 1-4-8-7 and 1-4-9-10

##### Fig. Projections of a point ‘A’ in four quadrants

Key position of points in the quadrants and their projections.

#### A.

##### top view
###### Lies Below x y
 Quadrant Position Front view Top view 1st (i) lies in HP and  distance x in front of VP (ii) Lies in VP and distance x above HP (i) Lies in XY (ii) Above XY (i) Below XY (ii) In XY 2nd (i) Lies in HP and  distance x behind VP (ii) Lies in VP and distance x above HP (i)Lies in XY (ii)  Above XY (i) Above XY (ii) Lies in XY 3rd (i) Lies in VP and distance y below HP (ii) Lies in HP and at distance x behind VP (i) Below XY (ii) Lies in XY (i) Lies in XY (ii) Above XY 4th (i) Lies in VP and at distance y below HP (ii) Lies in HP and distance x in front of VP (i) Below XY (ii) Lies in XY (i) Lies in XY (ii) Above XY

Key features projection of points.

• ##### If point is in front of VP, top view is below x y and vice versa.

Representation of front view and top view of a point

• ##### Mark Point by a capital alphabet as H.

Q.  Types of projections mostly used in engineering drawing.