Revit to GIS: 2011 Makes it Possible

14 Nov

Prior to Revit 2011, placing a 3D BIM model in to a GIS required the creation of a projection file within the GIS. By creating a projection with a false northing and easting, your model would project correctly.

Finally, we have the ability to create this projection within Revit!

By bringing a model in to GIS, we now have all the GIS toolboxes available for analysis. Clash detection is now possible without needing Navisworks.

How do you do it?

1) Set your projects coordinates to real world projection coordinates. (WGS84 maybe).

2) Export as an IFC.

3) In ESRI ArcGIS – you may need the Data Interoperability extension – which might run you $2,500 for a license- you can open the file.

4) Using ArcMap – I know you want 3D but lets convert to shapefile first – load a shapefile that has a projection you use frequently. Then load the IFC as you would a shapefile. If you double click the IFC, it will let you pick specific IFC Elements, so load the ones you want.

5)Select an IFC element from the contents browser and right click. Export as shapefile. Check box to use current projects projection. This will add a .PRJ file to your new shapefile.

6) Load the new Shapefile in to ArcScene to see it in 3D.

7) Do cool things like SELECT by attributes FROM windows WHERE pane=single.  You can load in an entire campus. Try doing  that in Revit.

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4 Responses to “Revit to GIS: 2011 Makes it Possible”

  1. Tech Blog March 12, 2012 at 4:40 am #

    Excellent article, thanks!

  2. GG93 October 23, 2016 at 7:23 am #

    Hi Paul, I have a question and I need your help. I already follow the step you have mentioned above, and its success. But I have another problem where the building seems more bigger that it’s suppose to be and it was located far away from the actual position. Can you tell me, what I’m suppose to do? I reaallyy need your helpp..Thank You!

    • paulcrickard October 23, 2016 at 4:44 pm #

      Think it has to do with drawing units. If revit in meters and GIS in feet you will have weird sizes. Make sure whatever unit revit is I , GiS is in same units. That should do it.

      • GG93 October 27, 2016 at 12:16 pm #

        how can i change the unit in GIS? I’m not very clear about this..

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