• Job Number
  This can be any three characters (either letters, numbers, or a combination) that the user wants to assigns to the job. The job number is used to create the name of the gpk where the coordinates of the baseline chain will be permanently stored.
  For the example shown below the job number h01 was specified, and therefore the baseline chain will be stored in the file jobh01.gpk.
  In general, the Hydraulics Section should not be storing their baseline chains in the same gpk file as the roadway designers. The roadway designers have been assigned job numbers beginning with the numbers 1 thru 8 (e.g., 123, 2ab, 33m, 4x4, etc.), and the Hydraulics Section has been assigned job numbers beginning with the letter h (e.g., h01, h02, hxx, etc.).
• Operator Code
  Use your first and last initials for the operator code.
• Chain Name
  The name assigned to the baseline chain. Any number of chains can be stored in a single gpk file; the only restrictions are:
  • chain names can have a maximum of nine characters
  • each chain stored in a single gpk file must have a unique name
• Beginning Point Number
  Point numbers are assigned by GEOPAK to each PI of the baseline chain, starting with the specified beginning point number and incrementing by one for each succeeding PI. If you're storing only one chain into the gpk file, then the beginning point number doesn't really matter. However, if more than one chain will be stored in the gpk file, then the beginning point number for chains must be chosen so that no point number is used in more than one chain.
• Begining Station
  This can be any station. If more than one chain will be stored in the gpk file it's good practice (but not required) that stationing be unique to each chain.

Once values for the items outlined above have been decided upon, bring up the Store Graphics dialog box using Applications > GEOPAK ROAD > Other Components > Store Graphics from the pulldown menus, as shown below.
 

 
This will bring up the Store Graphics dialog box (shown below left). If the option button at the middle right of the dialog is set to something other than Chain, change it now. The dialog box appearance will change to match the example shown below right.
 

 
Fill in the Job Number, etc., with values that were decided upon previously.
 
To store the baseline chain the steps are:

1. Adjust the MicroStation view so you can see the entire baseline that you drew in step #2.
2. Click on the ID Element button.
3. Click on the first line of the baseline chain. It should highlight.
4. Click off to the side of the first line. The second line of the chain should hightlight.
5. Repeat the previous step until all the lines in the chain have been highlighted.
6. Click one more time. The Store button in the Store Graphics dialog will "unghost" (see the example below left).
7. Click on the Store button and the InputFile Name dialog (shown below right) will pop up.
8. Click on the OK button in the InputFile Name dialog and the chain will be stored.

After the Job Number and Operator Code fields are filled in, hit the OK button to bring up the main COGO dialog (shown below).

In the main COGO dialog use Element > Chain > List from the pulldown menus to bring up the Chain List box.

• If the chain name you used to store the chain in step #3 above doesn't appear in this box, then you need to go back and repeat step #3 to get the chain stored.
• If the chain name you stored in step #3 does appear in this box, then everything worked. Kill all the COGO dialogs and continue on with step #5 below.

 
In the example shown below, chain STREAM was stored in step #3 and it shows up in the list of chains, so we can continue with step #5.
 

• Using generic MicroStation.
  Use this method if you want to visually locate where the cross-section fit on the map or if the cross-sections are skewed at odd angles to the baseline chain.
• Using the GEOPAK Draw Pattern Lines dialog.
  Use this method if you want cross-sections at constant increments along the baseline chain.
• Combination of generic MicroStation plus GEOPAK Draw Pattern Lines.

 Using generic MicroStation commands method:

• Set the active MicroStation level symbology to lv=50 and co=0
• Use the MicroStation Place Line command to locate the pattern lines where cross-sections are desired.

 
Using the GEOPAK Draw Pattern Lines dialog method:

• Bring up the Draw Patterns Lines dialog using Applications > GEOPAK ROAD > Other Components > Draw Patterns > By Station Range from the MicroStation pulldown menu (as shown below).
   
  
   
  
• The Draw Pattern Lines dialog box (shown below) will pop up.
  The Offset LT/RT fields control the width of the cross-sections that will be drawn. In the example below, pattern lines that extend 50 meters on either side of the baseline chain will be drawn.
  The Increment field controls the distance between cross-sections. In the example below, Increment is set to 20, so pattern lines (and cross-sections) will be drawn at 1+000, 1+020, 1+040, etc.
  Hit the Apply button in the dialog to draw the pattern lines into the active design file.
  
   
  
  

• Design File is the file where the pattern lines are drawn.
• Line box should be checked
• Lv and Co are set to the level and color the pattern lines were drawn with in step #5.

General Plot Parameters specifies the level/symbology GEOPAK uses to draw the existing ground cross-section. Lv=56 and Co=2 is the standard level/symbology for existing ground.
 
Void Plot Parameters specifies the level/symbology GEOPAK uses to draw assumed existing ground for any areas that were marked as being obscured areas within the tin file.

Distance Between Cross Sections should be left at the default values of Horizontal = 1000 and Vertical = 500.

Filter Tolerance should be left at the default values of Horizontal = 0.30 and Variance = 0.10.

When all the fields in the  dialog have been filled in as outlined above, hit the Apply button and the existing ground cross-sections will be drawn into the active design file.