CTDOT CONNECT DDE GUIDE VOLUME 1 - OVERVIEW

4.2 Seed Files

A seed file is a template *.dgn file that comes preconfigured with CAD standards ahead of time. When a user creates a new file, the application makes a copy of the seed file, puts it in the desired folder and renames the file.

SETTINGS

Seed files are used to standardize all new designs so every newly created *.dgn will have the same working units, color table, views, etc. as the seed file.

Each application (ORD, OBM, and OBD CONNECT) has its own set of seed files used for creating *.dgn files. More information on types of models and usage can be found in subsequent volumes.

SEED FILE LOCATIONS

All seed files are located in this directory:

...CT_Configuration\Organization\Seed\

Discipline Seed files are located in the Subfolders and are assigned by your selected role (Discipline Name)

OpenRoads Designer:

...CT_Configuration\Organization\Seed\Road

...CT_Configuration\Organization\Seed\Rail

...CT_Configuration\Organization\Seed\Survey

There are seed files in both 2D and 3D, and each has its own purpose. While Highway Design should start from a 2D seed file, Survey will use a 3D one to create the existing terrain. For designers, the work that is done on the 2D model will create a 3D view automatically. Designers will create a proposed design in 2D, with the added capability to view their work in a 3D space for model checking and visualization.

–OpenBridge Modeler:

...CT_Configuration\Organization\Seed\Bridge

–OpenBuildings Designer:

...CT_Configuration\Organization\Seed\Buildings

-Additional Seed Files

Title Sheet Seed file

...CT_Configuration\Organization\Seed\CTDOT_Title_Sheet_Seed.dgn

Cover Sheet Seed files

...CT_Configuration\Organization\Seed\CTDOT_State_Cover_Sheet_Seed.dgn

...CT_Configuration\Organization\Seed\CTDOT_Consultant_Cover_Sheet_Seed.dgn

Geographic Coordinate System from file seeds

...CT_Configuration\Organization\Seed\GCS

GEOGRAPHIC COORDINATE SYSTEM

OpenRoads Designer and OpenBridge Modeler seed files have been assigned a default Geographic Coordinate System (GCS) of NAD 1983 State Plane Connecticut with a North American Vertical Datum of 1988 to allow interaction with geospatial applications. For more on GSC, please see Volume 2. This GCS has been applied to each view as an Auxiliary Coordinate System (ACS):