I understand that I need Bentley Map to do this but after several attempts across several different version I can never get it to copy a coordinate system or have the edit option when I right click on them. I always just have copy and add to favorites. I have tried this on in the Latest OpenCities, Openroads SS4 with map activated, Inroads SS3 with map activated, and PowerMap V8i. Please Help. I would like to create a new local coordinate system that will be available across several Bentley products in particular ContextCapture and OpenRoads CE.I would do this in Openroads Connect Edition but it seems that they removed any map functions when it went to Connect Edition. This is why I have downloaded pervious/current versions of Bentley Map to create a new coordinate system.
The steps required to copy, edit, and customize a Geographic Coordinate System are specified in the Editing Coordinate Systems chapter of the Bentley Map Help document and this article:
https://communities.bentley.com/products/geospatial/desktop/w/geospatial_desktop__wiki/9002/--add-datum-ellipsoid-or-custom-coordinate-system. Have a look at the steps and I will contact you directly to provide assistance.Dan
Thank You I have got it and was able to copy and edit now. I was unware that I needed to first setup the MS_GEOCOORDINATE_USERLIBRARIES first. I do however now have a another question as the custom coordinate system that I need to setup needs to use the National Geodetic Vertical Datum (NGVD) 1929 for its vertical datum. See that you can change this after selecting the coordinate system and clicking the info/about to get the Geographic System Properties. Under the Coordinate System Modifiers, vertical datum. However it is in NAVD 88 and when I select NGVD 29 nothing happens and it doesn't change. Its as if it is locked on 88
It could be that, based on the Coordinate System in your DGN File, you might need to temporarily switch to a system that is based on NAD27, which provides access to the NGVD29 datum?
Here's how it was explained to me:
For most Geographic Coordinate Systems you only have two choices which are From Datum and Geoid but if the datum is NAD27 then you have access to NGVD29 and if the datum is one of the variation of NAD83 (NSRS07, NAD83/2011, HARN, HPGN, ..) then you have access to NAVD88 (the later US vertical datum).
The conversion between these vertical datum the file uses the file Vertcon.gdc which should already be set correctly. The Vertical (or 3D) reprojection must also be set in the Geographic Coordinate System setting.