attach DGN's

[Tjg]

I am trying to attach a dgn to my drawing and cannot seem to get it to come in correctly. It is coming in about 4.5 feet off, My units in the microstation drawing are set to US survey feet, and I have my units set in my drawing to engineering and unitless, I have tried feet and that did not solve the problem either, any suggestions?

Thanks

[DANIEL]

you could always calculate the scale factor difference between them and scale it after insertion but I don't know why it wouldn't come in correctly if both units are set to decimal feet

[envisioncad]

Tjg, you are dealing with the scale factor difference between US Survey Feet and International Feet. If you are seeing a 4.5 foot bust you must be located somewhere in the Midwest. Here is an article about how MicroStation deals with Survey Feet and International feet. This should help you with the scale factor.

http://communities.bentley.com/other/old_site_member_blogs/bentley_employees/b/mark_penns_blog/archive/2010/09/08/survey-foot-and-international-foot.aspx

Regards,

Bob Mecham

[Tjg]

Thanks Bob, One more question for you, In Microstation I can bring the drawing in as a reference or open it just fine, when I open it in Autocad or xref the drawing it is off in Autocad. How would I fix that?

[envisioncad]

Tjg, my quick MicroStation fix would be to create a new file from seed that is Intl Feet. Then reference the survey foot drawing with True Scale OFF. Merge into Master command. Now you will have Survey Coords in an International Foot drawing. Then you can import xref this file to AutoCAD.

 

If you access to Map 3D you can try this workflow. I personally have not tried it yet. http://www.mastergraphics.com/wordpress/wp-content/uploads/transforming-a-dgn-from-international-feet-to-us-survey-feet.pdf

 

HTH,

Bob Mecham