Javad TRIUMPH-LS, User Manual

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67
Stake Out Alignments
Go to the first section (starting point)
Go to the previous section
Go to the next section
Go to the last entered section
Regardless of the section currently edited, the “
New
Section ” button always appends a section to the end
of the alignment.
Also, if you need to delete current section or item, tap
the “
Delete
” ( ) button.
Tap the “ Duplicate ” ( ) button if you need to insert
a new section at current position (not append to the
end of the alignment). In this case an exact copy of
the current section is created (also you may use “
List
”
screens to rearrange the sections, as will be shown
later).
So, now we need to create an arc. Tap “ New Section ”
and click the type button once to change section to
“
Circular Arc
” (Figure 15).
Figure 15
Once again, note that the system initializes arc radi-
us and start direction with correct values, making the
joint with transition spiral smooth. We only need to
edit the arc length — set it to 150 m.
There are three additional instruments for entering
arc sections.
The “ Arc Calculator ” button ( ) switches to the
CoGo Arc screen (Figure 16), which can be used to cal-
culate arc length and radius from other arc parame-
ters such as tangent, curvature, middle ordinate, etc.
When you enter necessary values, tap “ OK ” button to
apply computed radius and arc length to current arc
section and return back to editing alignment. Other-
wise, tap “
Esc
” to return to editing alignment without
modifying current arc section.