To place a supportline centered on the active alignment,
use the following procedure
You must have an
active bridge unit and alignment to place a supportline.
This tool assumes a
pier that is centered on the alignment. The length, location (station), and
orientation (skew) of the supportline must be specified.
Home ribbon tab, select the
tool in the
Support Line group
Place SupportLine By Midpoint tool
Skew Angle value if not normal to the
If you do
specify a length, then the distance away from the alignment where
you data point will be taken as half the supportline length.
If you do
specify a station, then the point on the alignment closes to where
you data point will be taken as the station.
Direction Mode and
In the view window:
If you did not specify a Length and Station in the
tool settings, your data point will determine these values.
Data point to accept the station.
Data point again to accept the length.
tool gives you a dynamic preview of the supportline with the current tool settings
and mouse pointer location (if some tool settings are not locked).
The supportline is