Revit Views Export to Microstation retaining global origin offset

Hello, Community.

On my project, Designer decided to implement a workflow, where he models in Revit most of the architectural/Structural/Mechanical/Electrical work.

Designer needs to produce 2D DGN drawing as a deliverable, so the workflow suppose to look like this:

1: Model in Revit

2: Create plan views in Revit

3: Export Plan Views from Revit to DGN using native DGN exporting functionality ( using seed file).

etc...

At the moment, the problem seems to be with exporting Revit views to the right coordinate system;

a: project utilizes MTM10 with high values of Northing;

b: it is impossible to put Revit model at that distance physically ( i.e. by drawing it at that distance from the Internal Revit basepoint);

c: export seems to utilize Revit's Internal point original location as it's Global Origin - regardless of whether it was offset or not ( i.e. always at GO=0,0,0)

currently, the only workaround is to put that original model into another "placing" model, that physically displaces the first model at desired offset, but that distorts graphics of the Revit and makes it impossible any further annotation in the second model. 

P.S. This is not a question to Autodesk, because they obviously would care less of compatibility with Bentley product.

In the same manner that IFC was utilized to create "i-Model" exporter with decent ability to distinguish between "shared" and"internal" coordinates, or "DWG" , that can be exported from Revit using same ability to use "shared" and "internal"  origin - there should be a way to export into DGN- probably, utilizing DWG exporting functionality.

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  • I think your designer doesn't really know how Revit actually works. In Revit you have a Survey Point and a Project Base Point, which are by default set to 0,0,0. The designer should set up a Site File which has the correct coordinates set (not going to explain how this is done, google it).
    Every file (DWG, DGN, etc) created from the Site File will have the correct coordinates and will insert in exact location.
  • Just checked combinations: unclip and move survey point from 000 to the project location- same result on export; acquired survey point location from the "site coordinates" that I previously created by publishing that location from the site file- same result on export; unclipped and moved my shared project point to the "set to original location" - same result on export. Seems, that DGN export mechanism from revit recognizes only location of the INTERNAL Revit basepoint ( i.e. from the hard-coded location of elements in the Revit database, that always stay. Thank you for suggesting this try, though!
  • Denis,

    This is not a Revit Forum but I will try to explain.

    1. Create a new file > Go to Site plan and select the Project Base Point (NOT Survey Point!)
    2. Click on the number besides N/S, E/W and Elevation and set value as required
    3. Now select Survey Point, unclip it, and move it to center of Project Base Point
    4. In this file, reference your correct file (DGN, DWG, etc) and check if coordinates are correct
    5. If everything is correct, go to Manage tab, Coordinates > Publish Coordinates

    This should do the trick for you. Another tip, I would recommedn you to go to a Revit Forum regarding your export question as it has nothing to do with MicroStation.

    HTH
Reply
  • Denis,

    This is not a Revit Forum but I will try to explain.

    1. Create a new file > Go to Site plan and select the Project Base Point (NOT Survey Point!)
    2. Click on the number besides N/S, E/W and Elevation and set value as required
    3. Now select Survey Point, unclip it, and move it to center of Project Base Point
    4. In this file, reference your correct file (DGN, DWG, etc) and check if coordinates are correct
    5. If everything is correct, go to Manage tab, Coordinates > Publish Coordinates

    This should do the trick for you. Another tip, I would recommedn you to go to a Revit Forum regarding your export question as it has nothing to do with MicroStation.

    HTH
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