Hello,
I'm trying to attach a 3MX of a work site and then import some georeferenced shapefiles and a DGN containing some 3D solids into the same project. They should all be in MGA 1999, Zone 56 (Australian projection).
When I attach the 3MX by itself the model sits where it should in georeferenced space. I've checked the extents and a bunch of features within the site and they are correct.
When I import the shapefiles and the DGN containing the 3D solids, they also site in the correct space. I've checked the coordinates of the objects and they are correct.
When I attach the 3MX and import the shapefiles and 3D solids together, the shapefiles and the DGN shift by a huge amount and nothing lines up. When I go back and check the coordinates of the shapefiles and 3D objects they appear to have shifted by 10's or 100's of thousands of metres.
If I import the shapefiles and 3D objects with an attached 3SM, generated from the exact same project, everything lines up. Does anyone know what could be going wrong here?
Forum is correct it is bug in Microstation.
Attaching 3MX as mesh causes unexpected change of global origin so DGN files no longer aligns in Coincident reference attach mode. This change in global origin is not needed as I am able to attach it as mesh then reset global origin and then under attached 3mx properties add the offset manually and it works ok then. Poor programming which is fixed for 3sm format.
Other issue is that 3mx in some zoom levels part of tiles may not be visible even that exist at that zoom level.
Still we prefer 3mx format as 3sm also has issues. As it is easy to convert 3mx to 3sm it is more convienient to produce 3mx.
Answer Verified By: David Field
That's fixed it! Thanks Oto, you're a lifesaver =)
Just try to attach 3MX as reference then it aligns correctly. Do not hope that it will be fixed by Bentley otherwise life would be too easy. Now try to explain that to users what is 3MX, what is 3SM and how to actually use it in real workflows when it is like going over minefield. To reset global origin use Key-in: GO=0,0,0;xy=0,0,0|uor