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Forums >> Revit Building >> Technical Support >> hatch pattern in material anomolies

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Thu, Aug 25, 2016 at 5:52:33 PM | hatch pattern in material anomolies

#1

dougatcp


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Revit Architecture 2015 - The pattern on the right is "Dense Sand" as a filled region. The pattern on the left is "Dense Sand" as a material hatch pattern as part of a ceiling assembly.

Why does the filled region use a thinner line for the hatch elements than the material pattern does?  They both come from the SAME pattern file and there is no difference in scale since they are part of the same RCP view.

I also have the same difference occuring between a ceiling element and a soffit element in the same view using the same material, _GypBdClg, which is used as the lower material on BOTH the ceiling and the soffit, but they show differently in the SAME view.

I have read many posts about Hatch patterns not having control available for line weights, but why would the program itself change the lineweights from one use of the material to another?

 

Thanks

 



Edited on: Thu, Aug 25, 2016 at 1:18:17 PM

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Thu, Aug 25, 2016 at 6:18:10 PM | hatch pattern in material anomolies

#2

WWHub


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I don't have any good answer.  This has confused more than you but I do have some possibilities.  First, they are NOT a material as you imply "..why would the program itself change the lineweights from one use of the material to another..".  It is a pattern and may be assigned to a material or just a filed region. 

 

BTW - You will see this same value change in some structural elements using concrete.  This may be something in the system settings for architectural vs structural....

 

So what can change? >   Ceilings ansd soffits are different system families and we don't know many of the rules about system families.  We all can complain that they should be no difference but the code written for these two areas was probably by different code groups and obviously not coordinated.   We can and do complain but this is a trivial problem compare with others in this complicated program.

 

You write: "...I have read many posts about Hatch patterns not having control available for line weights..."   This is not at all correct for lines  and only partially true for filled regions where there are some controls.  First, hatches in families are goverened by VG settings for the family category.  (could this be the issue? - you might experiment)   Next - Elements and hatches can be screened.  Finally - there has been posts made here and elsewhere about hatches and other items using the lineweight for the #1 setting. << Obviously would be an all or nothing setting so really no control.


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Thu, Aug 25, 2016 at 6:27:45 PM | hatch pattern in material anomolies

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dougatcp


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Thank you for your speedy reply!

One thing I don't get is if hatches use the #1 line setting, how can two different elements (ceiling vs soffit) using the same material, which in turn uses the same hatch pattern for their surface have thicker vs thinner lines WITHIN the pattern itselt. I know that I can screen the pattern, but the little lines within the pattern are thicker in the ceiling vs the soffit, and they are thinner still in the filled region.

Maybe I'm dense (pun intended) but if the same pattern is being used, how can the lineweights be different? Not darker vs lighter, but thicker vs thinner?

Thanks


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Thu, Aug 25, 2016 at 8:04:44 PM | hatch pattern in material anomolies

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WWHub


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You say ceiling and soffit.  How did you create these?   We typically use a ceiling for interior soffits and thus there should be no difference.  So what are you doing, are you using roof soffits?  That could explain the difference because ceilings and roof soffits are two different system level operations.

 

Please explain your process.


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Thu, Aug 25, 2016 at 10:30:49 PM | hatch pattern in material anomolies

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dougatcp


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Hi Again,

The reason i experimented using a roof soffit on the inside of a room is this:

  1. You create a ceiling element dropped 1ft around the perimeter of the room.
  2. you create a short wall from 5/8" above that level up to the underside of the floor slab of the apartment above
  3. the outer finished edge of that wall is flush with the edge of the soffit
  4. you cut a section and the short wall and the soffit cross over each other so you use the join command
  5. When using a ceiling element the frame portion of the ceiling cuts through the drywall of the short wall element and makes it look like the framing of the ceiling soffit element goes all the way out to the edge, disallowing the drywall of the small wall to go down and join with the drywall at the bottom of the ceiling soffit. If you pull the ceiling soffit back to 5/8" away from the vertical wall then the dryall doesn't clean up and there is an "L" shaped gap in the drywall
  6. If you use a roof soffit instead and all else is equal then you will see that the framing elelments clean up properly between the short vertical wall and the roof soffit (used as a ceiling) and the drywall of the vertical and horizontal elements also clean up and "wrap" properly, just like when you bring two walls together at a corner.

I love Revit, and have been using it for 14 years, or however long AutoDESK has owned it. Sometimes it is the small things that bug you, ya know?

Thanks


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Fri, Aug 26, 2016 at 2:28:42 PM | hatch pattern in material anomolies

#6

WWHub


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My solution to that problem was to still use ceilings but to have the bulkhead walls stop at the top of the ceiling drywall then I used edit cut profile in my sections as required.


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Fri, Aug 26, 2016 at 2:35:26 PM | hatch pattern in material anomolies

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dougatcp


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thank you for your continued replies.....

yes, your solution is perfectly fine, except that we really shouldn't have to do that for every section cut, agreed?  walls and ceilings should clean up as properly as two walls do, or else make the wall join command work for other join conditions like this one so that you can simply click through solutions instead of always having to manually fix things.

Have a great day! appreciate the conversation!

Doug


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