Computer Aided Engineering Design

TRANSFORMATIONS AND PROJECTIONS 59

Figure 2.27 Four possible dimetric projections of the block

Figure 2.28 A trimetric projection of the block

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5 4 3 2 1 0

–1

–2

–3

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4
3.5
3
2.5
2
1.5
1
0.5
0
–0.5
–1
(a)ψ = 20.7°,φ = 22.21°

–2 –1 0 1 2 3 4 5 6

3

2.5

2

1.5

1

0.5

0

–0.5

–1

–1.5

(b)ψ = 20.7°,φ = –22.21°

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4

3.5

3

2.5

2

1.5

1

0.5

0

–0.5

–1

(d)ψ = – 20.7°,φ = 22.21°

–2 –1 0 1 2 3 4 5 6

4.5

4

3.5

3

2.5

2

1.5

1

0.5

0

(c)ψ = –20.7°,φ = – 22.21°