139
25. ROUTE SURVEYING
25.8.5 Automatic calculation of cardinal points
Perform automatic calculation of cardinal points based on the curve properties set in “25.8.2 Inputting Curve
Elements”. Center pegs (peg No.) and width pegs set up at intervals can be calculated at once.
• Up to 600 points, including all center pegs and width pegs, can be calculated using automatic calculation of
cardinal points.
• The cardinal point calculated depends on the type of curve involved.
Clothoid: KA-1 Point, KE-1 Point, KE-2 Point, KA-2 Point
Clothoid with no transition curve: KA-1 Point, KE Point, KA-2 Point
Circular curve: BC Point, SP Point, EC Point
• The width pegs can be set up on both sides of the route and the left and right route widths calculated
separately.
• A point name is automatically assigned to peg No. that can be calculated. The first part of the point name can
be preset.
• The coordinates of calculated pegs are automatically stored in the current JOB. When a particular point name
already exists in the current job the available option is possible to select whether or not to overwrite. It is
possible to preset which procedure is used in this situation.
PROCEDURE
1. In the second page of the OBS mode screen, press
[MENU], then select "Road".
2. Select "Alignment" to enter the Route Calculation menu.
3. Select "Auto calc." to enter the automatic calculation of
cardinal points menu.
4. Set Sta incr (stationing increment), middle P, CL ofs1
(centerline offset 1), CL ofs2 (centerline offset 2), Existing
(procedure used when the same point name already exists
in the current JOB), and Autoname (automatically assigned
suffix for point name).
A l i g n m e n t
C L o f s 1
C L o f s 2
- 5 . 0 0 0 m
S t a i n c r
5 . 0 0 0 m
m i d p i t c h
9 0 . 0 0 0 m
1 0 0 . 0 0 0 m
OK
To Next Page
Loading...
Need help?
General
