DGN file is published as BIM file, which is greatly enlarged #510
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Hi, my DGN file is only 6m in size, and it is 2G after it is published as BIM file. My DGN file contains many shared geometric elements. Does BIM not support the sharing of geometric elements, so it becomes so huge after transformation? |
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iModels do support shared geometry - these are referred to as "geometry parts". How was your iModel produced (what bridge/connector/application was used)? |
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The issue was that the MicroStation bridge would not produce shared geometry parts for shared cells containing stroked line styles. We have changed the code so that it will now do so. The input .dgn file was 7MB; the output .bim file is now 71MB instead of > 2GB. iModels are always bigger than .dgn files, but they compress well - zipped, this .bim file is 7.7MB. |
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The issue was that the MicroStation bridge would not produce shared geometry parts for shared cells containing stroked line styles. We have changed the code so that it will now do so. The input .dgn file was 7MB; the output .bim file is now 71MB instead of > 2GB.
iModels are always bigger than .dgn files, but they compress well - zipped, this .bim file is 7.7MB.