We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byGeoffrey Pierce
Modified about 1 year ago
Engineering Design and Presentation Introduction to Pictorials, Specifically Isometrics Copyright © Texas Education Agency, All rights reserved.
Pictorials break down into two (2) groups Group #1= Perspective or Central Projection. Group #2= Parallel Projection that includes Orthographic (Multiview), Oblique, & Axonometric. 2 Copyright © Texas Education Agency, All rights reserved.
Group #1: Perspective Drawings Perspective drawings produce the view that is most realistic. A perspective drawing is often referred to being the “camera” or photo view. There are three main types of perspective drawings depending on how many vanishing points are used. These are called one-point, two-point, and three-point perspectives. 3 Copyright © Texas Education Agency, All rights reserved.
Group #2: Oblique and Isometric Drawings Obliques Isometrics 4 Copyright © Texas Education Agency, All rights reserved.
Oblique Pictorials Oblique pictorials don’t look as realistic as perspectives or isometrics because the side or depth view looks distorted or “stretched out”. However, circular shapes in the front view aren’t distorted and that makes them easier to draw. If you do have to draw an oblique, cabinet projection is the method you use because the depth is halved making it look more realistic. 5 Copyright © Texas Education Agency, All rights reserved.
Axonometric Projections We are going to focus only on Isometric’s, but there are others. There are three (3) types: Isometric: all angles are equal or Dimetric: only the top & right side view are the same angles. Trimetric: none of the angles are equal. 6 Copyright © Texas Education Agency, All rights reserved.
Why draw Isometrics? They are BOTH true size, or dimensionally correct, and visually pleasing to the eye. Think of them as a combination of a perspective and an oblique drawing, using the best from each. 7 Copyright © Texas Education Agency, All rights reserved.
Oblique vs. Isometric. Which one is the most realistic looking? 8 Copyright © Texas Education Agency, All rights reserved.
Draw back of Isometric? Circles in an Isometric Circles distort shape, or become ellipses, when drawn in an isometric sketch. To sketch an isometric circle, locate the center and then sketch the box that would enclose the circular shape. Draw the ellipse tangent to the lines of the box. This is very similar to how you’d sketch a circle, just an angle. 9 Copyright © Texas Education Agency, All rights reserved.
Hidden Lines Generally, you will NOT draw hidden lines in any pictorial. You draw the object so that they aren’t necessary to be drawn to show the shape of the object. You assume that holes go all the way through unless it’s noted otherwise. 10 Copyright © Texas Education Agency, All rights reserved.
Drafting – Product Design & Architecture Pictorial Drawings – Isometric, Oblique, & Perspective.
ME 101 ENGINEERING GRAPHICS Dr. Oğuzhan YILMAZ (Assist.Prof.) Mechanical Engineering Department Room: 319
Sketching & Dimensioning. Pictorial Drawings Shows an object like you would see in a photograph Give a three dimensional view of a room or structure Three.
GE 121 – Engineering Design Engineering Design GE121 Isometric and Orthographic Sketching Lecture 3A.
Fundamentals of Engineering Isometric Sketching and Coordinate Systems GSMST.
The Gordon Schools 2 Point Perspective. 2 point perspective drawings are a type of pictorial drawing. They are a realistic drawing of an object showing.
Drafting – Product Design & Architecture Orthographic Projection.
The. of and a to in is you that it he for.
Computer Graphics - Viewing - Hanyang University Jong-Il Park.
LESSON #13 A REVIEW OF ORTHOGRAPHIC PROJECTION What is drafting? As explained in a previous lesson: Drafting is a Graphic Language that uses Lines, Symbols.
Drafting – Product Design & Architecture Perspective Pictorial.
Of. and a to the in is you that it at be.
High Frequency Words List A Group 1. the of and.
ORTHOGRAPHIC PROJECTION C H A P T E R F I V E. Technical Drawing with Engineering Graphics, 14/e Giesecke, Hill, Spencer, Dygdon, Novak, Lockhart, Goodman.
The Gordon Schools 1 Point Perspective Introduction.
N airn A cademy. Isometric Circle – 30 o /60 o generators method Start the isometric circle by drawing the front elevation and the plan of the cylinder.
The. of and a to in is you that it he was.
Fundamentals of Engineering Isometric Pictorials and Ellipses GSMST.
WHAT DO YOU THINK THIS COULD MEAN. DRAW A BREIF EXAMPLE.
Technical Drawing CHAPTER 1 By : Aznita Abdullah.
H 3-D DRAWINGS CAN BE DRAWN IN NUMEROUS WAYS AS SHOWN BELOW. ALL THESE DRAWINGS MAY BE CALLED 3-DIMENSIONAL DRAWINGS, OR PHOTOGRAPHIC OR PICTORIAL DRAWINGS.
Copyright 2012 McGraw-Hill Australia Pty Ltd PPTs t/a Engineering Drawing 8e by Boundy 6-1 Chapter Six Orthogonal Projection.
Furnishing 1-Point Perspective Drawings. The Importance of Cubes All things can be drawn within a cube or brick. This is the shortcut to drawing an object.
N airn A cademy. GC Credit Paper – 2002 – Question 9 A pictorial view (not shown on slide show) and detail drawings of a gate hinge are shown. Using the.
The shapes below are examples of regular polygons. Look at the sides and angles of each shape. Octagon rectanglehexagon triangle The following shapes.
One-Point Perspective… in 7 easy steps!. Step 1 Draw a square on your paper (roughly in the middle. Place a dot in your square (again, roughly in the.
Newbattle High School. Measured Perspective The given views show the Front Elevation and End Elevation of a house. Draw a measured perspective of the.
Engineering Tech GT Engineering Principals & Applications Introduction to Engineering & Technology Concepts Projection Systems: Orthographic and Isometric.
First of all – lets look at the windows you are going to use. At the top you have a toolbar, with all your various tools you can use when customising your.
© 2016 SlidePlayer.com Inc. All rights reserved.