SketchUp is a premier 3D design software that truly makes 3D modeling for everyone, with a simple to learn yet robust toolset that empowers you to create whatever you can imagine.
Home > Articles
␡- 3.8 Axonometric Projection
- Peachpit - Creating Graphics with Sketch Learn to use Bohemian Coding's Sketch 3 for all of your interface design work with this 3-hour comprehensive beginner's guide to the app that more and more interface designers are choosing as an alternative to Photoshop.
- Technical Drawing with Engineering Graphics (15th Edition) PDF Download, By Frederick E Giesecke and Alva Mitchell, ISBN: 134306414, For many decades, Technical Drawing with Engineering Graphics has been recognized as an authority on the theories and techniques of graphics.
This chapter is from the book
This chapter is from the book
3.8 Axonometric Projection
The feature that distinguishes axonometric projection from multiview projection is the inclined position of the object with respect to the planes of projection. When a surface or edge of the object is not parallel to the plane of projection, it appears foreshortened. When an angle is not parallel to the plane of projection, it appears either smaller or larger than the true angle.
To create an axonometric view, the object is tipped to the planes of projection so that principal faces, such as the top, side, and front, show in a single view. This produces a pictorial drawing that is easy to visualize, but because the principal edges and surfaces of the object are inclined to the plane of projection, the lengths of the lines are foreshortened. The angles between surfaces and edges appear either larger or smaller than the true angle. There are an infinite variety of ways that the object may be oriented with respect to the plane of projection.
The degree of foreshortening of any line depends on its angle to the plane of projection. The greater the angle, the greater the foreshortening. Once the degree of foreshortening is determined for each of the three edges of the cube that meet at one corner, scales can be easily constructed for measuring along these edges or any other edges parallel to them (Figure 3.34).
3.34Measurements are foreshortened proportionately based on the amount of incline.
Use the three edges of the cube that meet at the corner nearest your view as the axonometric axes. Figure 3.35 shows three axonometric projections.
Isometric projection (Figure 3.35a) has equal foreshortening along each of the three axis directions.
Dimetric projection (Figure 3.35b) has equal foreshortening along two axis directions and a different amount of foreshortening along the third axis. This is because it is not tipped an equal amount to all the principal planes of projection.
Trimetric projection (Figure 3.35c) has different foreshortening along all three axis directions. This view is produced by an object that is unequally tipped to all the planes of projection.
Axonometric Projections and 3D Models
When you create a 3D CAD model, the object is stored so that vertices, surfaces, and solids are all defined relative to a 3D coordinate system. You can rotate your view of the object to produce a view from any direction. However, your computer screen is a flat surface, like a sheet of paper. The CAD software uses similar projection to produce the view transformations, creating the 2D view of the object on your computer screen. Most 3D CAD software provides a variety of preset isometric viewing directions to make it easy for you to manipulate the view. Some CAD software also allows for easy perspective viewing on screen.
After rotating the object you may want to return to a preset typical axonometric view like one of the examples shown in Figure 3.36.
3.36 (a) Isometric View of a 1″ Cube Shown in SolidWorks; (b) Dimetric View; (c) Trimetric View (Images courtesy of ©2016 Dassault Systèmes SolidWorks Corporation.)
Home > Store
- By Amar Sagoo
- Published Sep 4, 2014 by Peachpit Press. Part of the Learn by Video series.
Your browser doesn't support playback of this video. Please download the file to view it.
DVD
- Sorry, this book is no longer in print.
Related Products
Peachpit Creating Graphics With Sketch Software
Online Video
Register your product to gain access to bonus material or receive a coupon.
Description
- Copyright 2015
- Dimensions: 5-3/8' x 8-1/4'
- Edition: 1st
- DVD
- ISBN-10: 0-13-399293-4
- ISBN-13: 978-0-13-399293-9
Learn to use Bohemian Coding's Sketch 3 for all of your interface design work with this 2-hour comprehensive beginner's guide to the app that more and more interface designers are choosing as an alternative to Photoshop.
In this 2-hour video tutorial, you get a complete introduction to using this lean, yet powerful new program. Amar Sagoo, a senior interaction designer at Google and avid Sketch user, starts by walking you through the Sketch interface and explaining the tools and what they do. He goes on to show you how to set up and organize your projects; position, size, and style your graphics; create shapes; import work; edit bitmaps; export graphics; and more. You can download project files to follow along with the exercises and reinforce what you've learned.
Even if you have no prior experience designing with Sketch, after working through this step-by-step video tutorial, you will have the skills and confidence you need to use Sketch 3 for creating all of your online graphics.
The video is wrapped in a unique interface that allows you to jump to any topic and also bookmark individual sections for later review. The unique 'Watch and Work' mode shrinks the video into a small window to allow you to work alongside in Sketch 3 as you view the video. Project files used in the lessons are included on the disc so you can practice what you've learned. At the end of every lesson, you can test your knowledge by taking interactive quizzes.
Duration: 2 HR
User Level: Beginning/Intermediate
Closed-Captioning in English
System Requirements:
Mac: OS X 10.6 or higher, 2GHz processor or higher, 4GB RAM or higher, 1GB free HD space
Hardware: DVD-ROM drive
Please Note:
• This DVD-ROM can be viewed on your computer, but it will NOT play in a DVD movie player.
• This course uses pop-ups; please enable pop-ups in your browser. For more information on how to enable pop-ups, please see our Learn By Video FAQ page at http://www.peachpit.com/LBVFAQ
Sample Content
Table of Contents
Welcome
Sketch Basics
How Sketch works: vectors versus bitmaps
The Sketch user interface (UI)
Creating content
Selecting content
Moving, resizing, reordering, duplicating, and deleting layers
Zooming and panning
Styling basics
Viewing pixels and using a Retina display
Organizing Your Drawing
Artboards
Groups
Naming objects
Locking and hiding content
Tips for selecting content
Pages
More on positioning and sizing
Rulers
Moving and resizing using the keyboard
Tips for changing values in the inspector
Scaling proportionately
Smart guides and measuring
Alignment and distribution
Making grids of objects
Ensuring sharp edges by fitting to pixels
Manual alignment guides
Grids and layouts
Styling
More on using the Color panel
Opacity and blending
Gradients and advanced fills
More on borders and lines
Shadows
Text styling
Blurring and reflections
Replicating styling
Reusing styling and content
Reusable styles for shapes
Reusable text styling
Reusing content with symbols
Creating your own shapes
Creating your own shapes using paths
Advanced options and shortcuts for drawing paths
Joining paths, editing segments, and varying stroke width
Rotating, flipping, skewing, and perspective distortion
Combining shapes
Vectorizing stroke and text
Creating rotated copies
Text on a path
Working with bitmaps
Adding bitmaps
Editing bitmap content
Styling and adjusting bitmaps
Masks
Masking bitmaps with flexible proportions
Converting between vectors and bitmaps
Nine-slice images
Exporting
Exporting artboards
Exporting layers and groups
Exporting arbitrary regions with slices
Export options
More export options
Drag & drop export
Copying CSS attributes Gopanel 2 2 0 1.
More Information
Peachpit Creating Graphics With Sketch
Other Things You Might Like
- Book $47.99
- Web Edition $38.39
- eBook (Watermarked) $38.39
