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September 01, 2010


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I use this tool quite a bit in floor plans. It allows me to show structure as a heavy line and finishes as thin lines. So, I open VG and change common edge cut lines to our thinnest linetype (0.001"). Then I open the Cut Line Styles dialog and change structure to lineweight 3 and finishes to lineweight 1. I think interior stud walls benefit from this technique the most; the stud layer has a darker line but the finish layers are much thinner.

We use this system on quite a few projects:
Generally we would want to make different materials/functions look different. Structural concrete would have the heaviest lineweight, followed by brick or blockwork (medium lineweight), then all other materials in a thinner lineweight.

On one project, we wanted to show a wall setout drawing that showed only the underlying structure but hid the finishes - so we set the finish layers to white (effectively disappeared; then we dimensioned to the structure/substrate layers.

We also need to regularly produce "concrete setout" drawings - which only show concrete parts of walls & floors. In theory we could hide all the non-concrete layers (by same method of white colour override; in combination with filtering out walls with no concrete). In practice I think it would be way too complicated, so we generally create two walls - one for concrete, and one for all the finishes. That makes it easier - we just filter out non-structural walls.

Here in Australia (and many other countries, unlike the USA), we do a lot of structural reinforced concrete - both columns and walls.

Yes.  from what I knew from back when this was implemented it was driven by non U.S. requirements.  The specific  use cases are valuable though.  Thank you

Same here in europe / Belgium
we use it to make graphical representation between the different structural uses of wall, floors, ....
As an extra: when enabling the "override cut line styles" they can also export to seperate layers.
It makes communicating with our structural engineer easier (yes they are still on acad).
They can turn off the finish and thermal layers.

As Tim mentioned we also are looking for an easier way to turn off all non structural items inside multi layerd objects (function layers in walls, floors, roofs )

This feature is news to me!
As a long-time AutoCAD user, I've found it a challenge to output drawings just as I want them to appear, but this will definitely help.
Keep up the good work on the blog, & AutoDesk's work with Revit.

In NZ traditionally we only show the structural layer and the finishes, cavities etc are not displayed. It's possible to do this as Tim described but it would be better to have a view parameter to turn off everything except the core layer or maybe the wall function layers could be on separate subcategories and controlled via the visibility graphics.

This has been one of the least used tools for me. I wouldn't miss it if you took it out. Obviously then I would need it ;)

We don't use this either. I wanted to use it to not show wall finishes, but using the white override method, I foresaw problems with dimensioning and users not understanding what they are dimensioning to. I abandoned the idea and users now just zoom like mad to pick the structure part of the wall. Yes, they have core as a preference set, but trusting a "preference" is a lot different than knowing what you've picked.

unfortunately this feature is ok until you start to join things. Let say you want concrete things to be most havier, brick things medium, and the rest of the layers thinner. In a section you have a concrete beam that is above the ground floor and it is inside a 2 story brick wall. When you join the beam with the wall(so beam will cut the wall) the beam margins receive the common edge lines property from the wall so if your beam is concrete you wanted heavy. In order to achive that you also have to set the common edge of the wall to be heavy. That make you knock out becouse know you have to take care that every wall structure should have the layers defined in such way to avoid common edge(so you can`t have two finish4 or two thermal substrates adiacent because commone edge efect will be a heavy line.... becouse the prooblem with the joined beams...). You know if you join things the game is over with this tool. I`ve spent 6 mounth to try find a solution but a ended up with not using this tool anymore. So my standards are not as my geographical area need it. East europe.
here are more pics and things for this subject. I was still positive that time but know the subject is "failed mission" :)

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