Engineering Graphics: Unit II (b): Projections of Points

Location of a Point

Projections of Points | Engineering Graphics (EG)

Though first angle and third angle projections are generally drawn in orthographic projections

LOCATION OF A POINT

Though first angle and third angle projections are generally drawn in orthographic projections (First angle - Object in first quadrant; Third angle - Object in third quadrant), it is advised to practice the projections of point, located in all the four quadrants to get clear understanding of the projections of object, which will be helpful to draw the orthographic projections of planes and solids easily.

1. A Point in First Quadrant : 


Case (i): A point in first quadrant may have perpendicular distances x and y, from the reference planes VP and HP respectively.

Case (ii): A point in first quadrant may lie on horizontal plane, having any distance x, frrom the verticala plane. 

Case (iii): A point in first quadrant may lie on vertical plane, having any distance y, from the horizontal plane.

Case (iv): A point in first quadrant may lie on the reference axis, having zero distances from the reference planes.

Similarly these four cases may be drawn for the remaining quadrants. It is important to note that one more plane, known as Profile plane may be used as shown in fig. 11.3 if the side view of the point is also required. Hence location of the point may also be identified by its distance z, from the Profile plane.


x - Distance of the point from vertical plane 

y - Height of the point from horizontal plane 

z - Distance of the point from profile plane

Engineering Graphics: Unit II (b): Projections of Points : Tag: : Projections of Points | Engineering Graphics (EG) - Location of a Point


Engineering Graphics: Unit II (b): Projections of Points



Under Subject


Engineering Graphics

GE3251 eg 2nd semester | 2021 Regulation | 2nd Semester Common to all Dept 2021 Regulation



Related Subjects


Professional English II

HS3251 2nd Semester 2021 Regulation | 2nd Semester Common to all Dept 2021 Regulation


Statistics and Numerical Methods

MA3251 2nd Semester 2021 Regulation M2 Engineering Mathematics 2 | 2nd Semester Common to all Dept 2021 Regulation


Engineering Graphics

GE3251 eg 2nd semester | 2021 Regulation | 2nd Semester Common to all Dept 2021 Regulation


Physics for Electrical Engineering

PH3202 2nd Semester 2021 Regulation | 2nd Semester EEE Dept 2021 Regulation


Basic Civil and Mechanical Engineering

BE3255 2nd Semester 2021 Regulation | 2nd Semester EEE Dept 2021 Regulation


Electric Circuit Analysis

EE3251 2nd Semester 2021 Regulation | 2nd Semester EEE Dept 2021 Regulation


Physics for Electronics Engineering

PH3254 - Physics II - 2nd Semester - ECE Department - 2021 Regulation | 2nd Semester ECE Dept 2021 Regulation


Electrical and Instrumentation Engineering

BE3254 - 2nd Semester - ECE Dept - 2021 Regulation | 2nd Semester ECE Dept 2021 Regulation


Circuit Analysis

EC3251 - 2nd Semester - ECE Dept - 2021 Regulation | 2nd Semester ECE Dept 2021 Regulation


Materials Science

PH3251 2nd semester Mechanical Dept | 2021 Regulation | 2nd Semester Mechanical Dept 2021 Regulation


Basic Electrical and Electronics Engineering

BE3251 2nd semester Mechanical Dept | 2021 Regulation | 2nd Semester Mechanical Dept 2021 Regulation


Physics for Civil Engineering

PH3201 2021 Regulation | 2nd Semester Civil Dept 2021 Regulation


Basic Electrical, Electronics and Instrumentation Engineering

BE3252 2021 Regulation | 2nd Semester Civil Dept 2021 Regulation


Physics for Information Science

PH3256 2nd Semester CSE Dept | 2021 Regulation | 2nd Semester CSE Dept 2021 Regulation


Basic Electrical and Electronics Engineering

BE3251 2nd Semester CSE Dept 2021 | Regulation | 2nd Semester CSE Dept 2021 Regulation


Programming in C

CS3251 2nd Semester CSE Dept 2021 | Regulation | 2nd Semester CSE Dept 2021 Regulation