iPOGO V5 Users Group - Help Manual

*Methodology*
Command:	1.1
Alpha Alias:	Set StaOsTan
Description:	Computes offset points along tangent portion of a stationed centerline
Data Format:	1.1 Set From To StartingStation Station Offset {[Station Offset]...} ;
Problem:	Given point number 102 at centerline station 9+87.62 and point number 103 on the centerline at a station greater than 9+87.62. Compute offset point 1 at 23 feet left of 10+50, point 2 at 36 feet left of 10+62, and point 3 at 40 feet left of 11+00.
Solution:	1.1 1 102 103 987.62 1050 -23 1062 -36 1100 -40 ;

Data Description

Command	1.1	Computes offset points along the tangent portion of a stationed centerline.
Set	1	Point number to be assigned to the first offset point you want to compute.
From	102	Point number having a known station, and lying on the centerline tangent. The tangent offsets are computed from this point.
To	103	Previously set point on the centerline tangent having a station greater than the From point station. The direction of the centerline is towards the increasing stations.
StartStation	987.63	Station of the From point. Note: Station values are entered without the plus (+) sign. For example, 10+23.68 is entered as 1023.68.
Station	1050	Station of the point on the tangent where a right angle (90°) is to be turned to set the desired offset. Note: Any station may be used. No permanent coordinate is computed for the station.
Offset	-23	Distance from the centerline to the offset point. An offset to the left of the centerline is entered with a minus sign. An offset to the right of the centerline is entered as a positive value and has no sign. Any offset, including 0, may be entered.
{[Station Offset] [Station Offset]...}	1062 -36 1100 -40	Repeating feature of this command. Continue entering station values and offset distances for additional points. Any additional points computed in this command will be numbered in an increasing order if you enter the Set point as a positive value. If you enter a negative number, additional points will be numbered in a decreasing order.
End Command	;	All commands end with ; (semi-colon).

Example Command File

$ Example data set for 1.1 command.

$ Setup initial points.
  0 
    102 -263.0 775.0 
    103 -233.0 955.0 ;

$ Use 1.1 command to set points 1, 2, 3.
  1.1 1 102 103 987.62 
                       1050 -23 
                       1062 -36 
                       1100 -40 ;

$ Setup additional points to draw lines 
$   using intersection command 3
  -3 1000 102 102 103 1 2 3 ;

$ Setup additional points to draw lines 
$   using store command 0
  0 
    1003 -236.6 779.9 
    1004 -209.4 950.9 ;

$ Setup plotting parameters with 
$ feature, layer, color, style, thickness
  15.1 L1 LINE1 1 1 1;
  15.1 L2 LINE2 2 1 1;

$ turn plot on
  91;

$ activate the feature code
  15 L1;

         $ Draw longitudinal lines.
           7 1 102 103 ;
           7 2 1003 1 2 3 1004 ;

$ Reset to new feature code
 15 L2;

         $ Draw transverse lines.
           6 1 
               1 1000 
               2 1001 
               3 1002 ;

Help for this command was last updated: 08/06/2000 5:55:42 PM

iPOGO V5 Help Manual On-Line

Group:Command:

1) Bearing Comps1.1 or Set StaOsTan

Group:
Command:

1) Bearing Comps
1.1 or Set StaOsTan