Hi guys,
how many models can I create in a DGN file?
Thanks a lot.
PM
Paolo Maggiani said:how many models can I create in a DGN file?
That's a difficult question to answer. Each model contributes to the DGN file size.
Regards, Jon Summers LA Solutions
Hi Paulo,there is no an artificial limit defined and also I guess no exact number has been mentioned anywhere.Technically the number of models depends on maximum DGN V8 file size and content, stored in such file:
It mean when you will add only new models without any content (elements) added, after a huge amount of models (millions at least), you will reach the max file size limit.But such discussion is pretty theoretical, because practical limits are far smaller. I think with tens or few hundreds of models, plus with some content int them, operations like the file opening or switching from one model to another will become annoyingly slow (which of course depends on a lot of next things like how many references are used, complexity of content etc.).With regards, Jan
Bentley Accredited Developer: iTwin Platform - AssociateLabyrinth Technology | dev.notes() | cad.point
Personally I would avoid putting all my eggs in one basket because if that multiple model file gets corrupted and you can't open it any more you lose everything..
How ever if you use reference files and nested references you may corrupt one or two files but you can always still use the rest and rebuilt one ref and replace it in the nests and all is well again... if nest ref file goes bad you can always remake it as the ref files are still available...
its convenient in 3d to create sections to use multimodels but don't go mad and use it instead of making nested ref files or refiles instead...
Lorys
Started msnt work 1990 - Retired Nov 2022 ( oh boy am I old )
But was long time user V8iss10 (8.11.09.919) dabbler CE update 16 (10.16.00.80)
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Lorys said:I would avoid putting all my eggs in one basket
So, that means not more than one cell per DGN cell library and not more than one worksheet per Excel file?
Assuming that you disagree with the above, what is the limit? It's hard to say: All we can say is, as Jan implies, 'it depends'.
I meant avoid doing this for drawings if you can for files that you open and edit all the time, most of us have cell libs and dgn libs in read only on shared server so they don't often get corrupted... but I have had some bad experiences with inroads designers providing me with multi model reference files and them getting corrupted and file wont open any more and none of these as refs work now in multiple drawings... so again personal preference and of course anecdotal experiences but they usually turn out to be right and avoid much pain and lost productivity...