XREF'S

I'm pretty new to the xref command but I'm figuring it out slowly but the question I have is
I'm working on designing this 2-story house and I have the 2d floor xref in
over the first floor and I'm tring to change the color of the 2d floor so I go into the layer dialog box and highlight all the layers that have to do with xref but it didn't change and I'm not sure what else to do. Any help would be great
--
Addy, J.P.

SGT/USMC
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Two parts to this response, solicited and unsolicited: Part 1: Without knowing what version you're using, selecting all the layers you want to change in the dialog at once will allow you to change all their colors to a single color in one go. You have to select the color box next to one of the selected layers to change them all, and hit OK. If you want to change them to various colors you will have to do that one (or a few) at a time. Part 2: XREFing for plans for a house would seem to me to be a cumbersome, inefficient system. If your layering system for various floors uses the same layer names (also not something I would do) I can see that XREFing would allow you to refer to other plans in each plan. However, with processor speed being what it is, and the drawing process being kind of circular at times, I find that having the entire model (all layers) easily editable in the same file to be the way to go in smallish buildings, especially in houses. In my protocol the layers related to various plans (and other views) are logically grouped by a prefix. They can be turned off or on quickly as needed by using wildcards, you can copy from one plan to another easily, and you never have to fuss around with XREFs.
If you go to my CAD page, the background is what a house dwg file looks like with everything turned on. Layer management can be automated in a number of ways (I use toolbars). Further the elevations are spread around the plan to make their coordination easier, so if you make a plan change that affects the elevation, you can make the elevation change immediately and correctly. The building sections are 'layered' over the elevations for the same reason the plans are 'layered' on top of each other. Of course, it means you have to use paperspace to plot.
I've done a lot of houses and small buildings since r 12 in '95 and think it faster and much easier to coordinate. I have also developed a bunch of lisp routines related to this way of working which are on my site. If you like I'll send you a file to examine. The usual initial reaction is "man that's complicated!" but after a bit the advantages begin to become apparent.
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MichaelB
www.michaelbulatovich.ca
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JOHN ADDY wrote:

I very much agree with Michael.
And I think you are presently walking a mile in my shoes. For years I wondered what good XREF's could be. Everyone was using them. I must have missed the point, I thought.
If you are working with other people you have no influence over, then it makes sense. Or if you have REALLY large projects, you might rearrange your life to exploit the concept.
But for small files sans the need to control other people you will never meet.......
Ignorance is bliss, just this once.
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