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25. ROUTE SURVEYING
PROCEDURE Calculation using arbitrary point between
KA1 and KE1 as reference
1. In the second page of the OBS mode
screen, press
[MENU]
, then select
"Road".
2. Select "Spiral" to enter the spiral menu
then select "KA
-
KE 2".
3. Input the coordinates of the P point
(reference point). Press
[OK]
to set
the input values.
4. Input the coordinates of the arbitrary
point on the line tangential to the P
point, then press
[OK]
.
• The azimuth angle to the P point can
be set by pressing
[AZMTH]
on the
second page. Press
[COORD]
to
return to coordinate input.
5. Enter the curve direction, parameter
A, KA-P curve length (length of curve
from KA to P point), offset, and P-
target curve length (length of curve
from P point to target point).
K A - K E 1
S p i r a l
K A - K E 2
K E - K A
N p :
E p :
S p i r a l / R e f . P T P
1 0 0 . 0 0 0
O K
1 0 0 . 0 0 0
REC
LOAD
S p i r a l / C L p e g
K A - P l e n g t h
5 0 . 0 0 0 m
D i r e c t .
P a r a A
8 0 . 0 0 0
m
R i g h t
OK
S t . o f s
P - S e t O u t P T l e n g t h
0 . 0 0 0
m
2 5 . 0 0 0 m
OK