TO GENERATE THE EXISTING GROUND PROFILE:

(Classic Method)

FIRST OF ALL YOU SHOULD HAVE THE FOLLOWING:

A 3D .DGN file containing the triangles.

NOTE: It is not necessary to create the ground profile from within a 3D file... it simply allows you to view the profile on top of the triangles. The ground profile is usually created from the TIN file rather than from the triangle graphics, and can actually be created from a blank 2D file.

AND...YOU MUST HAVE THE FOLLOWING:

A horizontal alignment (Chain) stored in COGO.
A .TIN file.

Open the 3D .DGN file and invoke the "Classic" method for creating the Ground Profile via the pulldowns, (as shown below):

APPLICATIONS > GEOPAK ROAD > GEOMETRY > GROUND PROFILE

... or use the Ground Profiles "Tools" icon, (as shown below):

When the dialog box appears, enter the name that you want to call the existing ground profile, the job number, operator code, etc...

SPECIAL NOTES:

Make sure that the "offset" is set to 0.
Also...it is suggested that you round the default "end station" down to the nearest integer to eliminate technical problems with storing the existing ground profile. For example... an "end station" of 13+233.49 should be re-keyed in as 13+233!

When finished entering the information, press APPLY. It is recommended that the "Intersect" method be used, to assure that none of the ground terrain breaks are missed. When this routine is finished, the STORE dialog box will appear and ask you if you want to store the profile. Click on YES.

See "Civil Geometry", Part III, Chapter 7 of the Geopak 2001 Manuals for more information on Ground Profiles.
To display the profile graphically... see Display the Vertical Alignment

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