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## Isometric Drawing and Coded Plans

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### Isometric Drawing and Coded Plans Prepared by: Sheryl Sorby, Ph.D. Amy Hamlin, Ph.D. Norma Veurink Funded by a grant from the National Science Foundation. – PowerPoint PPT presentation

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Title: Isometric Drawing and Coded Plans

1
Isometric Drawing and Coded Plans
• Prepared by Sheryl Sorby, Ph.D.
• Amy Hamlin, Ph.D.
• Norma Veurink

2
Isometric Sketching
• Isometric Axes
• Coded Plans
• Isometric Sketching

3
Isometric Sketching
• Used to portray a 3-D object on a 2-D sheet of
paper.
• The relationship between the 3-D axes appears
differently when projected onto a 2-D surface,
i.e., perpendicular angles no longer appear
perpendicular.

4
Isometric Axes
5
Isometric Axes
• Note that all surfaces of an object sketched in
isometric will appear distorted.

The surfaces of the cube appear to be rhomboidal
Isometric sketches are made as if you were
looking down a diagonal of a cube
6
Isometric Axes
• Isometric grid paper or dot paper is a useful
tool for constructing isometric drawings.

7
Coded Plans
• Pictorial sketches can be made from coded plans.
• Coded plans define the shape of a building made
of blocks.

Building
Coded Plan
8
Coded Plans
• Isometric sketch from corner C.

9
Isometric Sketching
• Guidelines for constructing isometric drawings
• Draw edge "C".
• Sketch surface to the right or left of edge C.
• Draw a surface that shares an edge with the
surface just drawn.
• Continue drawing one surface at a time until the
object is complete.
• NOTE Do not show the individual blocks in the
building. Just show edges where surfaces
intersect.

C
Step 4 ...
Step 3
Step 1 2
Step 4 ...
10
DemonstrationSketch the X-corner view of the
object shown below
2
3
1
1
X
11
In-class ExerciseSketch the X-corner view of the
two objects shown below
2
2
2
1
X
3
2
1
2
1
2
X
12
Complete the Computer Module on Isometric
Sketching
13
Homework Assignment
• Due next week, beginning of class
• In the workbook
• Sheets 4, 5, 6, 7, 8, 11, 12, 13 14