can anybody using Bentley map select series 4 help with datum files

RE: can anybody using Bentley map select series 4 help with datum files

Mark Shamoun — Wed, 23 Jan 2019 09:03:37 GMT

Yep, there are now 3 additional GCS libraries in addition to the delivered one attached for GDA2020 when you add that variable to your configuration.

RE: can anybody using Bentley map select series 4 help with datum files

Lorys — Wed, 23 Jan 2019 03:59:07 GMT

so we can use these files in v8i to reproject attach xrefs on the fly that are old datum like gda94 ontop of active new file with gda2020 cgs embeded

when I open new dgn can we then define the Gda2020 cgs from the tool box and library in v8i?

RE: can anybody using Bentley map select series 4 help with datum files

Mark Shamoun — Tue, 22 Jan 2019 12:59:02 GMT

Hi Lorys,

For the benefit of others, I was able to get the CE Update 11 GDA2020 Geographic Coordinate System files to v8i (SS4) by the steps below:

I activated Bentley Map (included with Civil products) to copy the CE GDA2020 GCS entries into a Custom Geographic Coordinate System library (treated like an upgrade - https://docs.bentley.com/LiveContent/web/bentley%20map%20help-v2/en/GUID-8B7AA47A-4DA2-8E97-A7BB-2033750877A1.html)
Copied datum.dty from CE and updated GenGridToWgs84.gdc to read MGA2020 shift files )https://communities.bentley.com/products/geospatial/desktop/f/bentley-map-forum/106540/make-custom-shift-grid).
I then added the MS_GEOCOORDINATE_USERLIBRARIES variable to my workspace to read the custom dty files on startup.

Here are the Geographic Coordinate System Custom Library files that go in your "C:\Program Files (x86)\Bentley\MicroStation V8i (SELECTseries)\MicroStation\GeoCoordinateData\" folder and some info about variables to add to you configuration:

https://www.dropbox.com/s/tqjlvo21c55n0z8/MS_v8i_GDA2020.zip?dl=0

Please note that Map is only required to change co-ordinate system data not to read custom data so all should be fine. These files produced identical results for the same dataset between CE and v8i so i'm pretty confident it works well, but suggest some testing before using on project data.

RE: can anybody using Bentley map select series 4 help with datum files

Martin Roy — Mon, 14 Jan 2019 16:38:22 GMT

Hi. I believe MGA2020 is not available in Bentley Map V8i SS4, it seems to only be available in CONNECT Edition versions of Microstation and Bentley Map.

RE: can anybody using Bentley map select series 4 help with datum files

Alain Robert — Mon, 14 Jan 2019 02:16:13 GMT

Unfortunately the coordinate systems file format is different between v8i and Connect Edition so what you are suggesting would not work.