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Living with AutoCAD

Living with AutoCAD. Considerations. There are elements (AutoCAD entities) that exist in one format and not the other. That means that those will be approximated.

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Living with AutoCAD

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  1. Living with AutoCAD

  2. Considerations • There are elements (AutoCAD entities) that exist in one format and not the other. That means that those will be approximated. • MicroStation can have many design models and many paper models. AutoCAD can only have one design model and many paper. So, if you are using the two file formats, limit your MicroStation to one design model. • MicroStation Shared Cells are closest to AutoCAD Blocks, so use Shared Cells. LA-OCMUG.COM

  3. Considerations (Cont) • Tags can be attached to any element. AutoCAD attributes can only be attached to blocks. So, limit tags to shared cells. • MicroStation levels can be numbers and/or names. Use names if to mix the formats. Also, layers in AutoCAD can only be displayed globally. • Both AutoCAD and MicroStation support True Type Fonts. Both support SHX fonts. Only MicroStation supports native MicroStation fonts. So, safest bet is to use True Type fonts. LA-OCMUG.COM

  4. Considerations (Cont) • Units. Very important to keep consistent. AutoCAD has architectural (stored as inches displayed as feet and inches), Engineering (same as architectural) and scientific. Most likely the best setting is: for feet-inch-fraction in MicroStation, use Master units in the Save-As option box. For feet. Decimal feet in MicroStation, use Master units. See MicroStation Help, search DWG then see “alternative Method” Good to experiment with units at beginning of project. • There are options settings in MicroStation in these functions: Open, Save As and Attach Reference. See Help for each box. • Line styles are similar. Generally not a problem. But not all export to AutoCAD. See Help if problems occur LA-OCMUG.COM

  5. Considerations (Cont) • Multilines existed in AutoCAD since Rel 14. • Line weights are displayed in pixel widths in MicroStation and mm in AutoCAD. Control the relationship with the Line Weight Scale option in Save As • Use entity mapping to direct how line strings are saved. See help. • colors can be mapped LA-OCMUG.COM

  6. General Rules • First general rule: defaults in Open, Save As and Attach are quite good. Always good to start with Defaults. • Second general rule is: Before you start work on a large project that requires both AutoCAD and MicroStation: WORK A SAMPLE, SIMPLE TEST CASE. That means, start with what is required by the customer and work it backwards to determine all of the above settings. Then, publish that procedure as a project standard. • Third general rule: When converting a file from one format to another, always purge (compress) the file and convert only the information that is required. LA-OCMUG.COM

  7. A Few Variables for Working with AutoCAD LA-OCMUG.COM

  8. Possible Work Flows LA-OCMUG.COM

  9. Method 1One Way Trip LA-OCMUG.COM

  10. Method 2Round Trip with Conversion to DGN LA-OCMUG.COM

  11. Method 3Round Trip with NO Conversion to DGN LA-OCMUG.COM

  12. Method 4DWG to DWG One Way LA-OCMUG.COM

  13. Which Seed Files are Used and When? LA-OCMUG.COM

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