Each project's PCF file can be found in the ...\NHDOT_Workspace\Projects\ directory. Open the PCF file with a text editor such as PFE or Notepad. Copy the following two lines into PCF file which will add the variable that sets the proper GCS and the command to run the setgeo macro which ensures that it is set properly when a dgn is opened.
GEO = 8329
MS_DGNMACROS>setgeo
The GEO variable defines which GCS to use of the four different alternatives available for State of NH projects. The first two digits of the GEO variable define the horizontal datum (either 83 or 11 for NAD83 or NAD83/2011) and the final two define the vertical datum (either 29 or 88 for NGVD 1929 or NAVD 1988). Change the "GEO =" to the appropriate number provided by the Survey Section.
NOTE: Remember to update any pcf file you may have copied into your personal workspace folder under ...\SSx-Workspace\Users\MX\ so your MX files get updated also.
Open any DGN file within the project to be modified. Set up a batch process to update all DGN files. Suggest turning on Workspace>Preferences>Operation>Automatically Save Design Changes before processing.
If the project's dgn file's units are in (international) Feet; a warning panel shown below may appear. Accept the default selection indicating that the elements are drawn correctly.
The Geographic Coordinate System dialog is used to report, select or delete a GCS for the current model in a design file. Find this dialog from the MicroStation Tools menu, select Geographic > Select Geographic Coordinate System.
The Geographic Coordinate System dialog is shown below with the correct GCS attached and without:
This panel reports the Name, Description and Source of the current GCS. The GCS can be set from the Library, from a reference file, from a file or removed by selecting the last icon, Delete Geographic Coordinate System.
From the Geographic Coordinate System
dialog, select the From Library button (the
second button from the left)
to get the Select Geographic Coordinate System
panel.
Geographic Coordinate System
At this point there are two choices, the Library
option and the Search option. Each option is
presented as tabs.
Of the two choices, the Search option is
easier. Just click on the Search tab and
enter the following Search Text
in the space provided; NH83. Click on the
Find Now button to trigger the Search. Select the GCS with the
"Key Name" of
NH83/2011F from the search results. Click
OK to apply this selection.
The following warning panel might appear.
Accept the default selection indicating that the elements are drawn correctly.
In order to set/check the vertical datum, use the Details tool (first icon) from the Geographic Coordinate System dialog box. A box containing the Geographic System Properties of the currently set GCS will appear. At the bottom is a section for Coordinate System Modifiers. Confirm that the Vertical Datum is correct or change if necessary. Click OK when finished.
New Hampshire Department of Transportation
PO Box 483 | 7 Hazen Drive |
Concord, NH | 03302-0483
Tel: 603.271.3734 | Fax: 603.271.3914