Subject: Attaching a BIM underlay

A Building Information Modeling (BIM) file is a drawing that typically contains a 3D model of a building that can be used for visualization, design, analysis, and to gener­ate building construction documents. You can attach the following types of BIM files:

   RVT format — Drawing files used by Autodesk Revit® for building and construc­tion data. You can attach .rvt files only using a 64-bit version of the program.

   RFA format — Family files used by Autodesk Revit® typically for storing build­ing and construction elements. You can attach .rfa files only using a 64-bit version of the program.

   IFC format — Files in the IFC (Industry Foundation Classes) format used for building and construction data.

Attaching a BIM file is similar to attaching an image file.

After you attach a BIM underlay, note the following:

   Layers Even though BIM files do not contain layers, you can control visibility by enabling/disabling floors or categories using the pane that displays for the BIM file. Use the BIMPROP command to open the corresponding pane (and use BIM­PROPCLOSE to close the pane).

   Entity snapping BIM underlays support entity snapping if you enable snapping using the UOSNAP system variable (or RVTOSNAP for only .rvt and .rfa files or IFCOSNAP for only .ifc files). You can also use the Options command, Snapping tab.

   Exploding The BIM Explode command breaks apart an attached BIM underlay into polyface meshes and polylines that can be edited. BIM Explode is similar to using the Explode command for a BIM underlay except all BIM underlay intelli­gence is kept intact and each resulting entity is placed on its own layer.

Import an .ifc file to retain its entities.
When importing an .ifc file, all entities are available and construction and architec­tural entities are converted to AEC entities. For more details, see Importing an IFC format file.

To attach a BIM underlay

   1   Do one of the following to choose BIM Underlay ():

   On the ribbon, choose Insert > BIM Underlay (in Data).

   On the menu, choose Insert > BIM Underlay.

   Type bimattach and then press Enter.

   2   Choose the .rvt, rfa, or .ifc file you want to attach.

   3   Click Open.

   4   Select an insertion point.

   5   Enter the scale in which to insert the file, then press Enter.

   6   Enter the rotation to use for the insertion, then press Enter.

Attaching_a_BIM_underlay
© Copyright 2023. BackToCAD Technologies LLC. All rights reserved. Kazmierczak® is a registered trademark of Kazmierczak Software GmbH. Print2CAD, CADdirect, CAD.direct, CAD Direct, CAD.bot, CAD Bot, are Trademarks of BackToCAD Technologies LLC. DWG is the name of Autodesk’s proprietary file format and technology used in AutoCAD® software and related products. Autodesk, the Autodesk logo, AutoCAD, DWG are registered trademarks or trademarks of Autodesk, Inc. All other brand names, product names, or trademarks belong to their respective holders. This website is independent of Autodesk, Inc., and is not authorized by, endorsed by, sponsored by, affiliated with, or otherwise approved by Autodesk, Inc. The material and software have been placed on this Internet site under the authority of the copyright owner for the sole purpose of viewing of the materials by users of this site. Users, press or journalists are not authorized to reproduce any of the materials in any form or by any means, electronic or mechanical, including data storage and retrieval systems, recording, printing or photocopying.