Two-Way Radio User Manual

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RIGID SURFACE
Data line to define a parabolic arc segment:
1. The “word” PARAB.
2. x-coordinate of the middle point along the parabolic arc.
3. y-coordinate of the middle point along the parabolic arc.
4. x-coordinate of the endpoint of th e parabolic arc.
5. y-coordinate of the endpoint of the parabolic a rc.
For rigid surfaces created with TYPE=SEGMENTS, the x- and y-coordinates are the global X- and Y-
coordinates or
r- and z-coordinates. For rigid surfaces created with TYPE=CYLINDER, the x- and y-
coordinates are the local
x- and y-coordinates. For rigid surfaces created w ith TYPE=REVOLUTION, the
x- and y-coordinates are the local r- and z-coordinates.
S
tart
Line segment
Local y-axis
c
Local x-axis
b
a
n
n
Outward
normal
Circular arc segment
Local z-axis
Generator
direction
Figure 17.19–1
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RIGID SURFACE, TYPE=CYLINDER.
17.19–4
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