topic Re: Roof window not being cut in plan view in Revit Architecture Forum

Roof window not being cut in plan view

Anonymous — Wed, 14 Feb 2018 19:47:13 GMT

I am using several Velux GDL Cabrio Balcony roof windows in a project, with the model downloaded from their website (https://www.velux.co.uk/professional/products/cad-bim/revit), which I have attached.

In plan the windows aren't cut, so they appear to extend beyond the roof.

From some light research I think the problem is a combination of nested window families and the cut plane. But when I tried to change the cut plane in the parent family, I realized the window is set up on a flat roof (instead of a vertical roof, more like a wall), and therefore the cut plane is parallel to the window itself. I can't seem to easily rotate the family or change the slope of the roof in the family.

Any ideas on how to adjust this, or is my problem something else entirely?

Re: Roof window not being cut in plan view

Sahay_R — Wed, 14 Feb 2018 19:54:50 GMT

Your windows are Roof-hosted instead of Wall hosted, like normal tame window families are.

Plan - convert Roof Hosted window to Wall Hosted - CTRL-C CTRL-V all the geometry from this family into a Generic Model template, make sure that the geometry and basic parameters are right, then insert into a Wall Hosted window family template, complete the parameters. One advantage to this approach is that you end up with much fewer redundant parameters that manufacturers insist on adding to their families.

If the windows are really meant to be parallel to the cut plane, then maybe Plan Regions? Maybe the RCP would be representative enough? Maybe an overlay to show the location of the windows? Ah, decisions, decisions.....

Of course you could post a screenshot, possibly a model file, so that you do not have to endure any more uninformed guesses.....

Re: Roof window not being cut in plan view

Anonymous — Wed, 14 Feb 2018 20:15:13 GMT

Thanks Rina, but it seems you misunderstand the problem. The windows are roof hosted because I need them in a roof (hence roof windows). They are placed on a roof with a 45 degree slope.

I do not want them to be parallel to the cut plane, that is just how the original family is set up. In fact, I think I need them perpendicular to the cut plane, so that they are actually cut when viewed in plan.

Hopefully from the attached model file now you can see that the windows should be cut along with the roof.

Re: Roof window not being cut in plan view

Sahay_R — Wed, 14 Feb 2018 21:06:47 GMT

One word answer for you - workaround!

Take a look at this - this is as far as I was able to make the top plan look reasonable.

1) I applied a View template - Plan View

2) Added a filter to display the windows in hidden lines

3) In the upper level plan - I used Modify>>Linework and filled regions (I'm sorry!!) to make the window look respectable....

I think that the fact that the cutting plane is at an angle to the windows is creating the problem.....

Re: Roof window not being cut in plan view

cbcarch — Wed, 14 Feb 2018 21:19:02 GMT

Perhaps a Reflected Ceiling Plan View would work, with an Underlay looking down to show floor plan context.

Maybe use a Plan Region so you can adjust cut plane where you need it to display properly.

Re: Roof window not being cut in plan view

Viveka_CD — Tue, 27 Feb 2018 15:21:46 GMT

Hi @Anonymous

I just wanted to follow up here, any progress on this issue? Did the recommendations by the experts help with your issue?

Are you seeking more assistance from the community?

Please mark any posts that help with "Accept as Solution" and thanks! Kudos welcome.

Re: Roof window not being cut in plan view

Anonymous — Tue, 27 Feb 2018 15:31:26 GMT

Hi @Viveka_CD

I didn't receive a true solution to my problem. One was a workaround, which would require a lot of unnecessary effort given the number of windows in my project. The other may be plausible, but I was not able to get it to work. I don't want to accept either suggestion as a solution, given that neither really solved the issue.

I suspect that not many people are having such a problem, and it could be fairly unique to the family I am using. If I find an answer, I will be certain to post it here.

Re: Roof window not being cut in plan view

Anonymous — Tue, 27 Feb 2018 15:59:33 GMT

In case anyone stumbles upon this question, here is another clarifying image:

The roof window displays correctly when cut in a 3D view with a section box.

Re: Roof window not being cut in plan view

cbcarch — Tue, 27 Feb 2018 16:21:19 GMT

I believe the method I suggested might work, and would take less than 5 minutes.

Re: Roof window not being cut in plan view

Anonymous — Tue, 27 Feb 2018 16:26:13 GMT

@cbcarch

I spent more than 5 minutes trying your method to no avail. It seems plausible, but unless you can get it to work, I'm not sure it is the solution.

Re: Roof window not being cut in plan view

Viveka_CD — Tue, 27 Feb 2018 16:33:44 GMT

Hi @Anonymous

I have created a separate case folder for you and will further investigate the issue.

Since you've already shared the family and Revit file, I would need a journal file to troubleshoot.

Regards,

Re: Roof window not being cut in plan view

barthbradley — Tue, 27 Feb 2018 16:56:37 GMT

this is a weirdly built family.

Just change it to a generic model and it will cut fine.

Re: Roof window not being cut in plan view

Anonymous — Tue, 27 Feb 2018 16:59:35 GMT

@barthbradley Thank you! A simple solution that works perfectly!!

Re: Roof window not being cut in plan view

Viveka_CD — Tue, 27 Feb 2018 17:28:21 GMT

Thanks, @barthbradley you saved us a lot of time!

@Anonymous Glad this worked for you. I will still investigate this family.

Regards,

Re: Roof window not being cut in plan view

Anonymous — Tue, 27 Feb 2018 17:34:50 GMT

@Viveka_CD The shared folder doesn't let me upload, so I will share the journals here.

Re: Roof window not being cut in plan view

Viveka_CD — Tue, 27 Feb 2018 18:06:50 GMT

@Anonymous That's great. Thanks for sharing!

Re: Roof window not being cut in plan view

Sahay_R — Tue, 27 Feb 2018 20:11:08 GMT

Are you serious? It was THAT simple?? And here I was overthinking things!

Re: Roof window not being cut in plan view

cbcarch — Tue, 27 Feb 2018 20:39:06 GMT

This may help some users not familiar with cuttable and non-cuttable families:

https://knowledge.autodesk.com/support/revit-products/learn-explore/caas/CloudHelp/cloudhelp/2015/ENU/Revit-Customize/files/GUID-3253EFCA-F38F-4086-9A4D-C873D8D04867-htm.html

Re: Roof window not being cut in plan view

Toke_Valum_CEBRA — Tue, 21 Aug 2018 12:25:14 GMT

@Viveka_CD only problem being that now the window doesn't show up in a window schedule

How can i bee that Revit can't do a roof window?

Re: Roof window not being cut in plan view

ToanDN — Tue, 21 Aug 2018 16:01:05 GMT

@Toke_Valum_CEBRA wrote:

@Viveka_CD only problem being that now the window doesn't show up in a window schedule

How can i bee that Revit can't do a roof window?

It is a different question so please start a new topic.