snapping in 3D space/layer management
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Category: EN
Forum Name: AutoCAD
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URL: https://www.cadforum.cz/forum_en/forum_posts.asp?TID=2122
Printed Date: 22.Apr.2026 at 15:52
Topic: snapping in 3D space/layer management
Posted By: Neltown
Subject: snapping in 3D space/layer management
Date Posted: 18.Jun.2009 at 01:56
Hi,
I have a problem with constructing drawings in 3D space. I'm
using AutoCAD Architecture 2009 and the current drawing method I am
using for a multi-story building is I draw each floor plan as a
separate file and then x-ref them into files with other floors. For
example, I draw the ground floor plan first then start a new file for
the 2nd floor and x-ref the ground floor plan in and use it as a guide.
This way I can see immediately if walls and point loads line up. The
problem is if I use smart objects from the tool palettes menu (doors,
windows, etc.) they have vertical information associated with them so
when I'm using them as x-ref'd guides to compose other plans, lines
that appear to be flat in plan view are snapping to points on these
smart objects which are actually floating somewhere up (or down) in
space. The result is that all the plans look fine but when I switch to
any of the side views there's lines criss-crossed all over the place.
Is there a way to set my snaps so they only snap to a certain elevation
in the z plane?
Another option, a more preferable one, is if
AutoCAD had a way of setting up a hierarchy of layers with a series of
sub-layers. I am still baffled as to why this is not possible in CAD as
it is in so many other programs. This would allow me to have all my
floor plans in one file and stack them on top of each other because I
would then be able to lock an entire floor plan. Does anyone know if
this is possible?
Thanks for any help you can provide!
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Replies:
Posted By: Insight
Date Posted: 18.Jun.2009 at 09:57
Why don't you use group filters instead of hierarchical layers?
If your "ground floor plan" is completely flat (Z=0) and you x-ref it with insertion point =0 everything have to be OK. If you want to insert X-Refs with their appropriate floor elevation (Z) it can be done in other file, instead of working "flat" drawing.
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