Spectra Precision FOCUS 2 Series, Руководство пользователя

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SPECTRA PRECISION FOCUS 2 SERIES TOTAL STATION USER GUIDE
B – Calculate Road Alignment
154
Deflection angle
Transition coordinates
For example:
=
64(1
−
0.0 1 0 2
+
4 0.0 0 0 0 4 8 5
−
50.0 0 0 0 0 0)1 1
=
64
∗
0.98981
=
63.348
Similarly, the value of E is:
=
64(0.10666667
−
0.00078019
+
0.0000025
−
0)
=
6.777
This is an example of a symmetrical spiral transition: N1 = N2, E1 = E2.
τ
L
2
2A
2
----------
=
τ
1
64
2
2 80
2
⋅
---------------
0.32rad 0.32
180
π
---------
18
°
20
′
06
″
deg = = = =
τ
1
τ
–
2
=
( ) ∴
N A 2
τ
1
τ
2
10
------
–
τ
4
216
---------
τ
6
9360
------------ …
– +




⋅
=
E A 2
τ τ
3
---
τ
3
42
------
–
τ
5
1320
------------
τ
7
7560
------------ … )
– +


⋅
=
N 80 2 0.32
⋅
1
0.32
2
10
------------
–
0.32
4
216
------------
0.32
6
9360
------------
–
…
+ +




⋅
=
64 1
0.1024
10
----------------
–
0.01048576
216
---------------------------- 0.001073741824
9360
----------------------------------------


– +


=
E 80 2 0.32
⋅
0.32
3
---------- 0.32
3
42
------------
0.32
5
1320
------------ 0.32
7
7560
------------
– +
…
–




⋅
=