Spectra Precision Survey Pro v4.6 Ranger User Manual - Manual (Page 58)

User’s Manual
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Note: A new segment can be inserted between two existing segments
by selecting the existing segment that is to occur after the new
segment and then tapping the Insert button.
10. With End selected, tap the Insert button
again and then tap the Spiral tab to insert a
spiral curve.
11. Enter a Radius of 100, a Length of 200,
select a Right of turn and a CS to ST
direction, and check the Make this segment
tangent to previous
checkbox.
12. Tap to add the segment to the horizontal
alignment.
Note: When creating a new horizontal segment
and using the Make this segment tangent to
previous
option, the new segment will appear
in the Edit Alignment screen tagged with a (P)
(see picture). This means that if the previous
horizontal segment is edited or deleted, thus
changing the orientation, all subsequent
horizontal segments that have the (P) tag will
also be adjusted so they will remain tangent to
the previous segments.
This does not hold true for vertical alignment segments. Vertical
segments do not have the Make this segment tangent to previous option
and will always begin with the specified starting grade unless they
are manually modified.