Page 226 - Concise Encyclopedia of Robotics

Object-Oriented Graphics
y
1.5
0.5
x
-1.5 -0.5 0.5 1.5
-0.5

Unit
circle
-1.5
Object-oriented graphics—Fig. 1

90
Angles are Each radial
in degrees division is
0.25 unit

r

θ
180 0

Unit
circle

270
Object-oriented graphics—Fig. 2

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