AutoCAD Civil 3D General Discussion

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Jeff_M
Posts: 4,231
Registered: ‎07-22-2003
Message 1 of 8 (452 Views)

Learned a valuable lesson regarding Xrefs & labels today

452 Views, 7 Replies
10-04-2012 04:48 PM

I have a number of design drawings, some Xref'ed into others, and since these designs get xrefed themselves into the production drawing, many of the xrefs are Attached, whereas some are overlays. I normally keep these preet clear as to whicj is which. I was happily working away in my site grading which has the storm drain pipe network drawing xref attached. I realized I needed to see some of the information contained in my Roads drawing in the grading plan. No problem, xref it. Oh, yeah, now I have the storm drain showing twice since that drawing is also xref attached to the road drawing. No problem, it was just for visual use up to that point, so I deleted the attached xref from the grading drawing. Now the Pipe drawing is shown just once. Perfect. I complete the grading design and start adding labels for the drainage inlets and pipes, using the Xref to label. Some time later I finish up adjusting all 250+/- labels, save the drawing, open the production drawing with the layouts, title blocks, details, into which said grading plan is xref'ed, and, wait, no labels on the drainage, oh, no pipoe network shown either. WTH? I look in the xrefs, and the pipe drawing is not listed. I go back to the grading drawing, and all is still good there. So I look in the XREF Manager, the Pipes drawing is now being shown as Overlay. I can't change it because it is a nested xref from the Roads drawing, in which is is still shown as Attached. So somehow, when I had Xref'ed the roads drawing containing the attached Pipe xref into my drawing already containing an attached Pipe drawing, the nested one was changed to Overlay...with no way to change it back. Even after I removed the original one, I could not ever get it to change. I 'fixed' it by importing all of the layouts and details into the Grading drawing, and turning it into a design/production drawing. 

 

I hope this excercise in nested Xrefs helps someone else avoid the costly mistake I made....costly in that I spent ~2 hours trying to figure out how it happened and what I could do about it.

Jeff_M, also a frequent Swamper
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Joe-Bouza
Posts: 4,803
Registered: ‎12-15-2008
Message 2 of 8 (444 Views)

Re: Learned a valuable lesson regarding Xrefs & labels today

10-04-2012 06:05 PM in reply to: Jeff_M

Thanks Jeff.

 

An important message indeed. I'll add it to my already lengthy list of why civil drawings should not use nested xrefs

Thank you

Joseph D. Bouza, P.E. (one of 'THOSE' People) Civil 3D 2012 & 2013
HP Z210 Workstation
Intel Xeon CPU E31240 @ 3.30 Hz
12 GB Ram


Note: Its all Resistentialism, so keep calm and carry on

64 Bit Win7 OS
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LisaPohlmeyer
Posts: 526
Registered: ‎01-14-2009
Message 3 of 8 (412 Views)

Re: Learned a valuable lesson regarding Xrefs & labels today

10-05-2012 05:40 AM in reply to: Jeff_M

Thanks so much for sharing that Jeff. I'm going to write that scenario up relating to the work that we do and perhaps do a lunch-n-learn to show our staff what happens.  It's such a valuable tool to share that knowledge here as well as asking questions when we encounter a problem.

Lisa Pohlmeyer

C3D 2012 SP4, C3D 2015
Please use "Accept as Solution" if this solved your issue.
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neilyj
Posts: 3,706
Registered: ‎08-01-2008
Message 4 of 8 (386 Views)

Re: Learned a valuable lesson regarding Xrefs & labels today

10-05-2012 09:00 AM in reply to: Jeff_M

Is the conclusion to this to use Overlays only??

neilyj
(No connection with Autodesk other than using the products in the real world)


IDSP Premium 2015 (mainly Civil 3D 2015 UKIE & Infraworks with some limited 3ds Max Design)
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Joe-Bouza
Posts: 4,803
Registered: ‎12-15-2008
Message 5 of 8 (384 Views)

Re: Learned a valuable lesson regarding Xrefs & labels today

10-05-2012 09:03 AM in reply to: neilyj

I think the conlusion is yours to make. All I could say is in 20 years I have experienced nothing but headaches, aggrivation and corrupt project files whenever xref nesting has been used. I forbid it.

Thank you

Joseph D. Bouza, P.E. (one of 'THOSE' People) Civil 3D 2012 & 2013
HP Z210 Workstation
Intel Xeon CPU E31240 @ 3.30 Hz
12 GB Ram


Note: Its all Resistentialism, so keep calm and carry on

64 Bit Win7 OS
*Expert Elite*
Jeff_M
Posts: 4,231
Registered: ‎07-22-2003
Message 6 of 8 (370 Views)

Re: Learned a valuable lesson regarding Xrefs & labels today

10-05-2012 09:40 AM in reply to: neilyj

No, I will still use nested xrefs (why xref my topo drawing into 30 Plan sheets when I can attach it once to the design drawing which is already xref'ed to those sheets?), I will just be much more careful about it. Until yesterday, I have never run into an issue with nested xrefs, and I've been using them since Xrefs were introduced way back when.

Jeff_M, also a frequent Swamper
*Expert Elite*
mathewk
Posts: 2,720
Registered: ‎07-09-2003
Message 7 of 8 (367 Views)

Re: Learned a valuable lesson regarding Xrefs & labels today

10-05-2012 09:48 AM in reply to: Jeff_M

Ecellent.  Thanks, Jeff.

Matt Kolberg
Cansel - Autodesk Division
http://www.cansel.ca/
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Joe-Bouza
Posts: 4,803
Registered: ‎12-15-2008
Message 8 of 8 (309 Views)

Re: Learned a valuable lesson regarding Xrefs & labels today

10-06-2012 11:03 AM in reply to: Jeff_M

My xrefs are set in my prototype. When I maket a desin file or a sheet file all the needed xrefs are already there as overlays. Users can unload anything they dont need. It may not be the right way but it works for me

Thank you

Joseph D. Bouza, P.E. (one of 'THOSE' People) Civil 3D 2012 & 2013
HP Z210 Workstation
Intel Xeon CPU E31240 @ 3.30 Hz
12 GB Ram


Note: Its all Resistentialism, so keep calm and carry on

64 Bit Win7 OS

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