To List a Survey Baseline Direction Using Inverse Point

You can determine the station and offset distance of an existing point, or group of points, from an existing baseline with the Inverse Point command.

To inverse a point from the Survey Command Window

1. In Toolspace, on the Survey tab, right-click the network to edit, and click Survey Command Window.
2. Click Baseline menu Inverse Point.
3. Type the start and end of the point range for which you want the station and offset information.
   Note: You must define the baseline as a prerequisite.

To inverse a point, using the survey command language

1. In Toolspace, on the Survey tab, right-click the network to edit, and click Survey Command Window.
2. At the Command line, enter:

   BL INV [point 1] (point 2)

Command Line Example

NE 1 1000 1000

STN 1

ZD 2 90 400

BL IS 1 2 100

BL PT 3 220 50

BL PT 4 270 -50

BL INV 1 4

This station and offset of points 1, 2, 3, and 4 are listed:

! Point Station Offset Elevation. Northing Easting

! 1 100.00 0.00 <Null> 1000.00 1000.00

! 2 500.00 0.00 <Null> 1000.00 1400.00

! 3 220.00 50.00 <Null> 950.00 1120.00

! 4 270.00 -50.00 <Null> 1050.00 1170.00

Command Syntax

BL INV [point 1] (point 2)

Parameter	Definition
point 1	An existing point in the drawing. It does not need to be adjacent to the baseline since the baseline is infinite in length.
point 2	Used with point 1 to specify a range of points that you want to list. If you do not specify point 2, then only point 1 is listed.