Graphics Under Duct

[Anonymous]

Hello,

I'm having an issue with the graphics represented under a duct. Specifically what I have is a duct with a tap and flex coming off of the bottom, and then a bigger duct running over the top of that duct. When the top duct is over the other one, it shows way too much, including, most notably, the rectangular tap coming off of the bottom of that other duct. When I move it, it instantly looks correct. It is consistent throughout the project, with only those ducts under other ducts showing the taps. I have attached screenshots of before and after, and the only thing that happened was me moving the top duct to the side. 

My questions is, is this a Revit bug? Or is this a setting that I can change and fix? 

[fabiosato]

Hello,

Check this topic, it may help you.

http://forums.autodesk.com/t5/revit-mep-forum/fitting-is-getting-opaque/m-p/6781798#U6781798

[Anonymous]

No, that isn't what I'm looking for. The tap actually shows underneath the duct, and I think it has to do with the fact that the tap technically is in the duct a slight amount so it fools the graphics into thinking it is something that should be shown (despite not being blocked by the top of the duct. 

In fact, ALL of the rectangular taps show under the duct when printed, not in the window while drafting. That is a huge deal as I can't accurately see what I'm going to be printing while drafting and trying to fix problems I can't see. 

There is an exception here though. While looking down at the duct with the tap underneath it, and flex duct and a diffuser under that, if there is a reducer on the diffuser, that shows through everything else, if there isn't, then the rectangular portion of the tap shows. This is a big deal, because it makes our plans look bad.

[fabiosato]

Hello,

I understood your point, seems to be a bug...

[rudi.roux]

Hi @Anonymous,

Welcome to the community! 

There might be something wrong with the takeoff/tap family. It was possibly changed/loaded into your project by someone else? I attached the default metric and imperial rectangular takeoff/tap for you to reload/overwrite. 

The reason for me stating that is that I tried to mimic your problem and I came up with standard graphical representations which you would expect. 

"...fact that the tap technically is in the duct a slight amount so it fools the graphics..."

Standard way in which it would connect, so I don't think it has anything to do with the slight cut into the duct runs. 

"...if there is a reducer on the diffuser, that shows through everything else, if there isn't, then the rectangular portion of the tap shows."

Here is some of the graphical representations below, tested with both a reducer included from the diff and without. 

Not under larger Duct Run, MEP Hidden Lines Turned Off: 

Under larger Duct Run, MEP Hidden Lines Turned Off: 

Under larger Duct Run, MEP Hidden Lines Turned On: 

Everything is pretty much what you'd expect. Did you possibly change any of your Graphic Overrides of your Ducts, mainly the transparency?

The image below shows everything to be 100% transparent, but you should clear those overrides. (If present for testing purposes). 

So, if the attached Families do not resolve your issue, you can attach a partial part of your project which can then be investigated, or your family. The partial project would be better.

I hope this helps! 

[kadmonkee]

do you get a similar result when looking at your Duct run in a ceiling plan view (looking up) as opposed to a floor plan view (looking Down)?

[rudi.roux]

Hi @Anonymous, 

I hope you are well. 

I'm just following-up to hear if any of the post/s served as a solution for you or if you have any further questions?

[Anonymous · Accepted solution]

Just so I don't continue to get harassed by PM's from the people in this thread;

No, none of these answers helped. If your answer would have helped, I'd have marked as solution after the 4th or 5th time you "followed up" about it. 

As I have now figured out, this is a graphical error in Revit. 

First, the fact that the tap appears differently ON SCREEN under one duct instead of under two is probably related to the fact that now the middle duct has been converted to hidden lines.

BUT, this doesn't explain why the duct taps under the duct show up when printing when you cannot see them in the window in Revit. This is a classic case of "what you see is NOT what you get", despite assurances to the contrary. 

Besides this, showing the exact geometry of the tap under the duct is an error. This should not be shown like this on construction plans, at least not in the manner it is being shown. 

[rudi.roux]

Hi @Anonymous, 

Thank you for providing you findings. 

Just to put your statement into context. You stated:

"Just so I don't continue to get harassed by PM's  from the people in this thread;

No, none of these answers helped. If your answer would have helped, I'd have marked as solution after the 4th or 5th time you "followed up" about it."

I go through the old post which I commented on which haven't been resolved to see if I or other users can be of assistance to help you/other members. 

This community and members are here to help. Think of it as a "service" which is being delivered on a global scale. I follow-up a week or two after no further activity was present from the OP. Once again, trying to assist or deliver a service to other members. I do so once. I do apologize for the second one (not the 4th or 5th one) which you received today. It was a mistake on my side. I generally keep track of it quite well.

I'm not going to shy away from the "harassing" PM which I send out to members to try and help. Nor do I ask you to accept my post as a solution, I actually just ask if you need any further assistance. If receiving "customer service" is a problem for you, then I do apologize. 

Below is my PM for all to see... 

"Hi there, 

Hope you are well! 

I'm checking in to see one of the posts helped you?

If you could be so kind and accepted the post/s which helped you as a solution so that future users could benefit from it, 

or that the thread can be closed. I'm referring to THIS POST.

If you are unsure how to do this, you could simply click on accept as solution underneath each post/s which helped you. 

If there is anything else, feel free to start a thread as I and other users monitor the forums daily. 

Keep Well! 

Rudi"

As always, I hope this helps!  (Your friendly neighborhood community member).