Orthographic projections of object drawings

  • Thread starter Thread starter Tesla In Person
  • Start date Start date
  • Tags Tags
    Drawing Projections
Click For Summary

Discussion Overview

The discussion revolves around interpreting orthographic projections of an object based on its top and front views to deduce the side view. Participants explore the challenges of visualizing three-dimensional shapes from two-dimensional representations, particularly in the context of an exam question involving multiple choice options.

Discussion Character

  • Homework-related
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant expresses difficulty in interpreting the top and front views of an object and seeks help in deducing the side view.
  • Another participant suggests that understanding orthographic projections requires stereometric insight, which varies among individuals.
  • A participant clarifies their assumption about which view is top and which is front based on the question's wording.
  • One response advises visualizing lines as planes perpendicular to the drawing surface and emphasizes the importance of the second view in determining the correct orientation of the planes.
  • A participant defines "mcq" as Multiple Choice Question and notes the thread's relocation to the schoolwork forums.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the best approach to interpret the views, and the discussion includes varying levels of understanding and interpretation of orthographic projections.

Contextual Notes

Some assumptions about the views may not be universally applicable, and there is a reliance on the specific wording of the question, which could lead to different interpretations.

Tesla In Person
Messages
34
Reaction score
13
Thread moved from the technical forums to the schoolwork forums
Hi, I have this mcq . The image shows the Top and Front view of an object, what is the side view of this object? I am finding it very difficult to even interpret the top and front views. I will get questions like these in my exam so I must be able deduce the 3rd view from 2 given views of the object.
 

Attachments

  • projection 1.png
    projection 1.png
    5 KB · Views: 141
Physics news on Phys.org
Hello Tip,
:welcome: ##\qquad## !​

This comes down to stereometric insight, which, for some, is a breeze, and -- for others -- is a nightmare.
One way to build experience is to study your textbook; another is to google 'orthographic projection' and view some presentations.

Have you already determined which of the two is top and which is front ?

And what is an mcq :rolleyes: ?

##\ ##
 
BvU said:
Hello Tip,
:welcome: ##\qquad## !​

This comes down to stereometric insight, which, for some, is a breeze, and -- for others -- is a nightmare.
One way to build experience is to study your textbook; another is to google 'orthographic projection' and view some presentations.

Have you already determined which of the two is top and which is front ?

And what is an mcq :rolleyes: ?

##\ ##
"
Have you already determined which of the two is top and which is front ?"
I assumed that the first one was Top and bottom one was Front, in the same order as stated in the question.
Sorry i forgot to post the options, just posted the figure. Anyways, here is the question. It says in brackets "Top and front view" so i assumed the views were in the same order i.e. 1st one top and the bottom one Front.
 

Attachments

  • Q1.PNG
    Q1.PNG
    10 KB · Views: 167
Welcome!
Just see all lines like planes that are perpendicular to the paper on which the drawing is represented.
One view only gives you two options for the direction of that plane: extending toward your eyes or away from them.
The second view tells you which option is correct.

For this specific shape, some lines are the convergence of two planes, one of which is not perpendicular to the paper.

Begin with drawing the footprint of the shape in the third view, using the dimensions from the other two views.
 
Last edited:
BvU said:
And what is an mcq :rolleyes: ?
Multiple Choice Question. Thread moved to the schoolwork forums.
 
  • Like
Likes   Reactions: BvU

Similar threads

  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 49 ·
2
Replies
49
Views
5K
Replies
1
Views
3K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 3 ·
Replies
3
Views
1K
  • · Replies 1 ·
Replies
1
Views
953
  • · Replies 11 ·
Replies
11
Views
2K
  • · Replies 25 ·
Replies
25
Views
3K