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In relation to my previous post, I'm continuing on my endeavor to make our piping as good as I can. It was requested to show hidden lines on the elbow down and tee down piping. I achieved this pretty simply in the elbow family by just creating another set of symbolic lines on the other half of the pipe profiles and then creating a hidden line sub-category and assigning them to that. Looks great, prints great.
On to the Tee...
I do the exact same process, in the tee family it is needed in the front/back views, so I created a symbolic line full circle on a hidden line sub-category. Nothing shows up in the plan, it looks the same as before. 
So, I play for a bit and then adjust the Tee fitting to a Part Type of "Multi-Port" (Elbow works too, maybe others) and it shows up great! 
Only problem is, it isn't a Tee anymore, so Revit doesn't use the proper Tee Down single line symbology 
I'd like it to remain this way.
This seems like a glitch to me, why would the Tee part type not show the symbolic lines, while other part types of the same family would.
Yes, I could remove the hidden lines from the families, turn the double line symbol to a full circle in the Pipe System and then adjust the Pipe Drop linework to a hidden linetype in the Object Styles ---> which would be a lot less work in the long run and works nicely ---> BUT, then the single-line pipe down symbol is also hidden, so it looks like this --> 
Any thoughts? Does Autodesk need to fix the Tee part type in the Pipe Fittings family? Or fix the way the single-line elbow down symbols responds to linework overrides. Maybe add more system-baked sub-categories for single line drops/rises and two-line drops/rises.
Hello,
I believe your views are set to hidden line visual style to get the result you are displaying.
In this case the dashed dots of the covered pipe should be in front of the extrusion to be visible, these symbolic lines must be visible only in fine detail level
Regarding the single line drawing, I have a suggestion, but I didn´t try it, use a masking region an lines and try to set their order in a way that when the tee is down the masking is on the top, and the tee is up the masking in behind the lines, this is an idea...
Fábio Sato
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Hello casquatch,
It seems that on single line what is been shown is the rise and drop symbols, so they may override your lines.
Have you tried to do so with pipe rise and drop subcategories off?
Fábio Sato
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I would like the single line piping to show with the rise and drop symbols, but I don't want those symbols to be using the line types assigned for hidden line, as they aren't actually hidden. I have turned the symbolic lines within the families to only be visible at Fine detail, so two-line piping.
In a perfect world this is how it should look:
This is not achievable with Revit right now (from what I can tell). The Tee part type doesn't allow for any symbolic lines to appear.
Hi, casquatch,
I'm Judy, a Revit specialist. I've been looking over your question and the video (thanks for making that - very helpful!) and I can see and reproduce the issue myself. Would you mind sending me your Pipe Testing project? I'd like to look into the issue further and having the project that goes with the video would be a big help.
Thank you, and have a good weekend! Looking forward to hearing from you soon.
Best,
Judy Staicer
Hi, Casey!
If the file is small enough (looks like it probably is) you should be able to attach it to your reply with the attachment tool below the reply box. If that doesn't work let me know and I'll PM you a link to a Box folder.
Thanks,
Judy Staicer
Hi, casquatch,
I've been looking into this issue (thanks for sending me the file privately) and this is what I've found. You're right that when you change the drop linetype to hidden 1/16" to get the two-line symbology the way you want it, it puts a break in the line showing the drop in your one-lines, and vice versa. Right now it's not possible to customize the rise and drop symbols that are built into the software, so both the one-line and two-line symbols will either be solid or dashed lines, but not one of each.
To get dashed lines for the tee drop while using the unbroken 3/4 circle for the one-line drop, you could use detail components in your views. As you mentioned to me, you'd like it to be possible to add more subcategories to pipe fittings so you can do this customization in the families themselves, which is also something that is not available right now.
Since what you're looking for is functionality that isn't available in Revit now, I'd suggest posting your ideas, and the business case for their importance, on the Revit Ideas page. Our development team looks at the ideas our customers post and has incorporated a number of suggestions from customers. Other people can then vote on your idea.
I hope this helps. Let me know!
Best regards,
Judy_S
We have similar issues - I think what we're looking for is better single line graphics akin to the ACAD MEP single line display properties. We use pipe placeholders for small diameter pipe, but if a user wants to include items such as tick marks to indicate fitting types, for elbows, tees, crosses, etc. they have to be added as detail components - and anchored to the pipe line. I've overridden some of this in pipe accessories by placing embedded, annotative plan symbols for items like valves, but fittings are a bit more challenging. Maybe it could be added as a "feature" just to the placeholders...
David A. Butts
Engineering Technology Manager - Gannett Fleming
Revit Certified Professional/Autodesk Certified Instructor
Revit, AutoCAD Architecture, MEP, Plant 3D, BIM Collaborate Pro Subject Matter Expert
Hi, casquatch and dbutts7,
Thank you for taking the time to post your ideas about pipe fitting symbology on the Revit ideas page. It's the best way for our developers to find out what you want and need in the software. I can understand how you feel that this is something that needs to be fixed, casquatch, as you can't do what you need to do at the moment. From a development perspective, a "fix" would be something we'd do to repair malfunctioning software. Clearly these types of issues take a higher priority for the developers. The pipe linework idea would be a "request for an improvement" in the software where Revit works properly (meaning, for example, that it doesn't crash when you change the existing pipe symbology) but lacks a feature or functionality (such as the ability to customize piping symbols) that is important to you.
Keep those ideas coming! We want to know what you think!
Best,
Judy_S
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