topic Re: Linked IFC Files in Revit not Cutting in Plan in Revit Architecture Forum

Linked IFC Files in Revit not Cutting in Plan

antwaneolee — Wed, 29 Jan 2020 19:13:05 GMT

Hello:

I have been having issues with IFC files not cutting in plan when linked within one Revit file. I have tried bringing it into a Family Type/Generic Model so Revit recognizes it with a Category. But Revit 2017 will not allow me to import IFC models.

Is there a fix for this?

Please advise.

Thanks.

Re: Linked IFC Files in Revit not Cutting in Plan

ToanDN — Wed, 29 Jan 2020 19:18:31 GMT

An IFC itself is equivalent to a Revit project file so that you cannot link it in a family. Share the IFC here if you want us to look at it,

Re: Linked IFC Files in Revit not Cutting in Plan

ToanDN — Wed, 29 Jan 2020 20:13:08 GMT

I don't have 2017 but the file appears to be showing correctly in Revit 2019. below is a comparison between a floor plan and a 3d top view so you can see the the elements being cut correctly.

Re: Linked IFC Files in Revit not Cutting in Plan

antwaneolee — Wed, 29 Jan 2020 20:29:54 GMT

ToanDN:

There must be something that changed in the software between Revit 2017 and 2019 for how it deals with IFC files, etc.

I will look into it and get back to you shortly.

Thanks.

Re: Linked IFC Files in Revit not Cutting in Plan

hmunsell — Wed, 29 Jan 2020 20:37:23 GMT

can you upload the IFC? i have a project currently in 2017 that we tried using IFC's from Microstation on. The main issue i have had with IFC's is, depending on where they came from, any rounded surface gets triangulated and looks nasty. other than that i have always been able to cut sections.

Re: Linked IFC Files in Revit not Cutting in Plan

ToanDN — Wed, 29 Jan 2020 20:47:39 GMT

Attached.

Re: Linked IFC Files in Revit not Cutting in Plan

antwaneolee — Wed, 29 Jan 2020 21:28:05 GMT

Howard:

ToanDN attached a ZIP file with documents in the last thread. I am having trouble uploading to the Forum.

Please review.

Thank you.

Re: Linked IFC Files in Revit not Cutting in Plan

hmunsell — Thu, 30 Jan 2020 12:49:05 GMT

you said in your original post "IFC files not cutting in plan when linked". are your referring to cutting sections or making additional plan views (2nf floor, etc...). when i open the RVT provided i have no issues viewing plans, cutting sections, etc.

i opened up one of my standard 2017 files i do testing in and linked in the 2 IFC files and didn't have any issues. i can see it in plan (multiple levels), cut sections, place an elevation, etc... see attached.

https://autode.sk/31bf7f9

Re: Linked IFC Files in Revit not Cutting in Plan

antwaneolee — Thu, 30 Jan 2020 17:18:52 GMT

Howard:

Thanks for assisting me with this.

The problem is not cutting the model in section as that works fine; it is with the clipping plane in plan. Please see the attached images from Revit Forum reviewers who have worked on the files in higher versions of Revit where they have no problem. My clipping plane does not adjust correctly in the file. The 2x wood framing at the columns which slopes should be moving as the clipping plane is lowered or raised.

Please review the images.

Thanks.

Re: Linked IFC Files in Revit not Cutting in Plan

antwaneolee — Thu, 30 Jan 2020 17:23:28 GMT

Howard:

I have attached another image of which typical sloping, wood framing members at the columns are not changing when the clipping plane is adjusted.

Please review.

Thanks.

Re: Linked IFC Files in Revit not Cutting in Plan

hmunsell — Thu, 30 Jan 2020 17:44:36 GMT

Ahhhhh sorry, misunderstood the issue. i think i know whats happening, i just had someone in my office have a similar problem.

if the item being clipped is not Entirely inside the Plan Region, that will happen. since this is an IFC import, it is being treated like one large object. as a test, adjust your Plan Region outside the highlighted box and see if they adjust.

Re: Linked IFC Files in Revit not Cutting in Plan

antwaneolee — Thu, 30 Jan 2020 18:16:12 GMT

Howard:

Please see the attached screenshot. I think I have it right.

If not, can you send me another video?

Please let me know.

Re: Linked IFC Files in Revit not Cutting in Plan

hmunsell — Thu, 30 Jan 2020 18:22:59 GMT

that looks about right, did that work? if your just using a Clip Plane, you "shouldn't" have to do that. It didn't look like you were using Plan Regions, but i thought id throw that our there as an option, but if its working 👍 ...

if you feel you need another video i can certainly come up with something :-).

Re: Linked IFC Files in Revit not Cutting in Plan

antwaneolee — Thu, 30 Jan 2020 18:33:51 GMT

Howard:

Please see the attached Word document with Clipping Plane settings and columns. The sloped framing is not cut. Revit is just looking at the top of the sloped wood framing below the beams.

Please review.

Thanks.

Re: Linked IFC Files in Revit not Cutting in Plan

RDAOU — Thu, 30 Jan 2020 18:55:29 GMT

@antwaneolee

It is cut you have nothing wrong with your crop view, IFC, Clip Plane or anything

FIX your Graphic Overrides like last time (below is your word document I highlighted the cut manually for you to see)

Re: Linked IFC Files in Revit not Cutting in Plan

antwaneolee — Thu, 30 Jan 2020 19:00:21 GMT

RDAOU:

Please see the attached revised Word document which shows the clipping plane adjustments and how the sloped wood framing has not changed.

Please review.

Thanks.

Re: Linked IFC Files in Revit not Cutting in Plan

RDAOU — Thu, 30 Jan 2020 19:37:21 GMT

@antwaneolee

Go to visibility graphics >> Revit Links Tab >> Set it to by Host

You have it by Linked view now so your CUT PLANE is fixed as per linked model

NOTE:

Then Set the Graphic Overrides for Structural Framing in your host model
Set Top limit of the view range to 13'

Re: Linked IFC Files in Revit not Cutting in Plan

antwaneolee — Thu, 30 Jan 2020 19:25:03 GMT

RDAOU:

Please see the attached revised Word document with the changes to 'By Host View.' The clipping plane stays the same.

Please review.

Thanks again for your assistance.

Re: Linked IFC Files in Revit not Cutting in Plan

antwaneolee — Thu, 30 Jan 2020 20:06:04 GMT

RDAOU:

Please see the attached ZIP file.

Please review.

Thanks.

Re: Linked IFC Files in Revit not Cutting in Plan

antwaneolee — Fri, 31 Jan 2020 17:36:30 GMT

RDAOU:

Please see the attached updated Word document with clipping plane adjustments. I still seem to have the same problem.

Please review.

Thanks.