topic Re: Revit Underlays - underlaying a section in Revit Architecture Forum

Revit Underlays - underlaying a section

Anonymous — Fri, 25 Oct 2019 18:23:15 GMT

This may have been covered before, but I thought I'd ask. Has Autodesk considered adding an underlay feature to sections wherein one could see behind the cut plane simultaneous to the section itself?

Thanks,

Re: Revit Underlays - underlaying a section

barthbradley — Fri, 25 Oct 2019 18:36:20 GMT

Far Clip not acceptable to you?

How about Depth Cueing?

https://www.bing.com/videos/search?q=revit+depth+cueing&&view=detail&mid=7A0530445E8F56C031707A0530445E8F56C03170&rvsmid=FC60B80B1DEA6A9B3060FC60B80B1DEA6A9B3060&FORM=VDQVAP

Re: Revit Underlays - underlaying a section

virgilio_benedictos — Fri, 25 Oct 2019 18:40:26 GMT

hi @Anonymous ,

have you ever tried to create 2 sections view and overlay it in the sheet? that's the only way I see to solve your problem.

Re: Revit Underlays - underlaying a section

Anonymous — Fri, 25 Oct 2019 18:42:04 GMT

Good work around, but I was hoping for an option like in floor plan mode.

Re: Revit Underlays - underlaying a section

Anonymous — Fri, 25 Oct 2019 18:42:40 GMT

Not sure you understand, I want to see BEHIND the section cut.

Re: Revit Underlays - underlaying a section

barthbradley — Fri, 25 Oct 2019 18:46:34 GMT

@Anonymous wrote:
Not sure you understand, I want to see BEHIND the section cut.

Yes, I get. Adjust the Far Clip to show elements behind the Cut Plane. Use Depth Cueing to affect how those elements BEHIND the Cut Plane are represented graphically.

Re: Revit Underlays - underlaying a section

virgilio_benedictos — Fri, 25 Oct 2019 18:56:29 GMT

@Anonymous

you can suggest that in Revit Ideas. but the way I see that is not applicable. Underlay option in Plan is applicable because of its parallel only in one dimension (Z axis) while in section you have to create another section parallel to the first one, which is the same on my first suggestion.

Re: Revit Underlays - underlaying a section

Anonymous — Fri, 25 Oct 2019 19:03:27 GMT

It looks like the far clip offset can't be a negative number though... Maybe I'm the slow one! 🙂

Re: Revit Underlays - underlaying a section

barthbradley — Fri, 25 Oct 2019 19:09:50 GMT

Sounds like you want to see IN FRONT OF the Section Cut Plane -- not BEHIND the Section Cut Plane. I can only imagine the confusion reading that view. It wouldn't make any sense. Might make good abstract artwork though.

Re: Revit Underlays - underlaying a section

Anonymous — Fri, 25 Oct 2019 19:10:11 GMT

I think it would be very useful. Doesn't a section CREATE a plane so to speak when it's drawn? Allowing some savvy programmer to let Revit see what's projected behind the section?

Re: Revit Underlays - underlaying a section

barthbradley — Fri, 25 Oct 2019 19:41:27 GMT

Hey! I got a great idea for the name of idea! "Rearview Mirror Underlay". What do you think?

Re: Revit Underlays - underlaying a section

virgilio_benedictos — Fri, 25 Oct 2019 20:02:19 GMT

@Anonymous

I agree with @barthbradley . please don't forget what is a section is for. Anyway, I think you need that for some special purpose May we kindly know that?

Re: Revit Underlays - underlaying a section

Anonymous — Fri, 25 Oct 2019 20:36:46 GMT

Well occasionally when drawings sections it's useful to dash in what's "in front" of the section, or behind the section plane, either for reference to to locate specific elements of a design. Specifically in this case I was trying to locate a fireplace element, but consider how it could be used to show openings in hallways, etc. But I imagine beyond that there probably aren't really enough use cases for this feature for the Revit team to ever integrate it. It's not as functional as the plan mode wherein it's useful to see RCP etc...

Anyway I thought it would be an interesting feature that wouldn't theoretically be that difficult to add into the program.

Re: Revit Underlays - underlaying a section

Anonymous — Fri, 25 Oct 2019 20:37:53 GMT

There ya go!

Re: Revit Underlays - underlaying a section

LAWRENCERUGG3610 — Sun, 19 Apr 2026 23:13:25 GMT

I agree, absolutely! Sometimes it's helpful to see the relationship of the part of a building that is being cut to the rest of the building, which may be "behind" you. Otherwise, the part of the building being cut may appear to have nothing around it. A function like this would help put isolated section cuts in into context. So, that would be helpful just like it's helpful to see the floor plan in an underlay when looking at a reflected ceiling plan. I would think that if you created a second section at the same location as the first one, but looking in the opposite direction, you could then underlay that second section under the first one so that what's "behind" you in the first section shows up in gray. But since there isn't an underlay function in a section view, it appears that this can't be done. If anyone knows if it can, that would be great.