1. Isometric Drawings & Coded Plans
Workshop 2
Isometric Drawings & Coded Plans
Spatial Visualization lesson 2/workshop 2
Note: The slides are animated so a mouse or keyboard click brings up the next image, text or slide.

2. Depicting a 3D Cube Non-isometric view of a cube ↘
Corner angles are not equal
Sides have different areas
↙ Isometric view of a cube
Sides connect in a corner
All corner angles are equal (120°)
Sides are the same size
Shown on triangle-dot paper
Image source: (2 drawings of a cube)
2015 Jacob L. Segil, College of Engineering and Applied Science, University of Colorado Boulder

3. Isometric Drawing Example
Isometric means “equal measure”.
A house depicted isometrically using AutoCAD ➔
Useful for blueprints and design plans
Think of the cube:
Equal side faces
Equal corner angles (120°)
Triangle-dot paper: dots are 120° from each other
Image source: (drawing of house)
2015 Jacob L. Segil, College of Engineering and Applied Science, University of Colorado Boulder

4. Click mouse/keyboard to reveal
Isometric Views
Click to reveal
Click to reveal
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Use this slide to support activity 1 on the topic of isometric views and coded plans.
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Image source: (drawings of various cube shapes)
2015 Jacob L. Segil, College of Engineering and Applied Science, University of Colorado Boulder

5. Isometric Views Four views of the same multi-cube object
Image sources: (cube and letter shapes)
2015 Jacob L. Segil, College of Engineering and Applied Science, University of Colorado Boulder
Four views of the same multi-cube object
Two capital letters drawn isometrically

6. Isometric Views Tips: Align paper in landscape orientation
Define your axes on object and isometric paper
Only draw lines where edges exist

7. A coded plan of the same image ↓
Isometric Views
A coded plan of the same image ↓
Image source: (isometric and coded plan drawings of same object)
2015 Jacob L. Segil, College of Engineering and Applied Science, University of Colorado Boulder
Corners are labeled by letters
# in squares = # cubes stacked up

8. A 1 3 2 Coded Plans to Isometric Views Tips:
Image source: (coded plan)
2016 Jacob L. Segil, College of Engineering and Applied Science, University of Colorado Boulder
Tips:
Define your axes on a coded plan and isometric paper
Start drawing from perspective

9. Station 4: Computer-Aided Visualization
Workshop 2 Stations
Station 1: Coded Plan Relay
Draw a coded plan
Then, build the object
Draw the isometric view
Pass the coded plan to a neighbor and repeat
Check drawings for accuracy with neighbor
Station 2: Workbook Drill
Individually, answer workbook questions on pages iso1 to iso12 on scrap paper
Check your answers with the answer key
Station 3: Peer Teach
In pairs, choose 2 viewpoints of the provided coded plan
Draw the isometric views from the 2 viewpoints
Then, redraw the isometric view while describing out loud how you did it
Station 4: Computer-Aided Visualization
Read Module 3: Isometric Drawings and Coded Plans
Complete the isometric drawings and coded plans exercises
Leave this slide up so students know what to accomplish at each station

10. Click mouse/keyboard to reveal the possible solutions
Coded Plans to Isometric Views (Station 3 answers)
Click mouse/keyboard to reveal the possible solutions
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Image source: (cube shapes drawn from a coded plan on triangle-dot paper)
2015 Jacob L. Segil, College of Engineering and Applied Science, University of Colorado Boulder