Station Offset from Coords
This feature allows you to calculate the station and offset of
selected points in the current coordinate file, based on the
alignment as defined by the Point Group.
Select Station Offset from Coords from the menu.
You will first be asked to open the point group file that defines
the alignment.
At the Enter Starting Station [Done] <0.00000>: prompt, enter
the station of the first point in the point group. For example, if
the first station is 24+34.12, enter it as 2434.12.
(As an example using the point group listed in the previous
section, the starting station must be greater than 1000, the
starting station in the point group, and less than 2016.05, the
station of the last point in the point group. If not, no
information will be displayed.)
Enter Maximum Range <0.00000>: The range identifies how far
to look left and right of the alignment for points in the current
coordinate file.
Next, you will be asked to select the points to be considered in
computing the station offsets
Add points from coordinate file. (Enter when done)
[All/Block/Code/Desc/Elev/Pt-group/Limit/Radius/Select]:
At the prompt type A and <Enter> for all the points in
the current coordinate file or use the other options to choose a
subset of the points. As indicated by the prompt, press
<Enter> by itself to end point selection.
The station and offset information will be printed in order by
station.
The Enter Start Station [Done] <0.0000>: prompt will appear
again, you may enter the next starting station or type D and
<Enter> to end the command.
Prompts
Enter Starting Station [Done]
<0.00000>: Enter the starting station as a decimal
number.
Enter Maximum Range
<0.00000>: The range defines the distance tolerance
left and right of the alignment for points selected from the
current coordinate file.
Choose initial points for base
selection set from coord file. (Enter when done)
[All/Block/Code/Desc/Elev/Pt_group/Limits/Radius/Select]:
Use the various methods to select points from the coordinate file
to be searched for proximity to the alignment.
Pulldown Menu Location:
CG-Survey > Cogo > Station Offset
Keyboard Command:
cg_staoff_from_crds
Prerequiste:
coordinate file, an existing point group file defining the
alignment