Publish coordinates in dwg Bug?

[fabrice]

I have difficulties publishing shared coordinates into a dwg. The user guide says:

When you publish shared coordinates from a host Revit Building project to a linked DWG, this changes the linked DWG. The origin of the host Revit Building project’s shared coordinate system becomes the origin of a new User Coordinate System (UCS) in the DWG file. The Y axis of the new UCS corresponds to the host project's True North.

The Y axis of the new UCS is correct, but not the origin. The origin remains de World origin in the dwg...

Has anyone experienced the same problem?

[Teresa.Martin]

Hi!
I have not run into that particular issue, but are you also changing the options under File>export>Cad Formats? If you click on the options button, you will see in the Export Options dialogue box a filed named: Coordinate system basis. Change this to Shared. I am hoping that this corrects the problem for you.

Best regards,
Teresa Martin
Senior Application Specialist
Ideate Inc.

[fabrice]

I tried both options, but it does not solve the problem. The new UCS origin is the WCS origin in both cases. Onlt the orientation of the new UCS changes.

[Teresa.Martin]

Dear Fabrice;
Hmm...You might try this instead. Open an empty project. Draw two walls corner to corner (L shaped).

Switch to your default 3D view.

Go to Tools>Shared Coordinates>Specify Coordinates at a point
.
Pick the outside corner of the walls. Change the coordinate to 0,0,0.

Save this project as Origin.rvt.

This makes a Revit UCS file or sorts.

Now open a new project.
Link in Origin.rvt. Place the linked file where you would like the 0,0,0 point to be in Revit.

Go back to tools and choose Shared Coordinates>Acquire Coordinates.

The new project is acquiring coordinates from Origin.rvt.

Now open up Autocad.

Draw something at the origin, like a rectangle or circle with the center point at 0,0.

Switch back to Revit and choose import>Cad Formats. Select the AutoCAD file and check on link. Now, very important, choose shared coordinates not origin to origin. You will get a message, but when you hit accept, you will see that the origin in Autocad will snap to the origin in Revit.

Export a plan view back to Autocad. You will see that the 0,0 point in Autocad is where you specified it in Revit.

I am hoping that this set up may work for you. And it is a good way to have a Revit UCS icon of sorts....If you need it!
Best of luck!
Teresa Martin
Senior Application Specialist
Ideate Inc.

[fabrice]

That worked very well.
Thank you very much!