Sounds to me like you have a complete understanding of the problems and limitiations inherent in your workflow...
@aax – that would only work with strokes originated in InDesign.
Not with placed vector graphics.
And as blanko 23 already stated: copy/paste vector information from Illustrator to InDesign does not work (too complex).
Tell me you're joking!
Is there any good reason for that?
@aax – I'm not joking. There are good reasons not to copy/paste from Illustrator to InDesign.
Complexity is one reason. Copy/Paste would fail, if the paths are too complex. Or you'll ending up with a PDF representation of your vector drawing in InDesign.
There are many more reasons:
Effects that change there appearance, effects that cannot travel over and thus, if you are lucky, are transformed into PDF, path winding rules are changed after pasting, changed stroke styles…
In post #1 blanko 23 is showing a very simplified version of artwork.
There could be some additional levels of complexity and some layers that should be maintained as layers.
I think there could be a scripting solution for this situation.
A script that analyzes graphic sizes in InDesign and doing scaling and writing new files on the Illustrator side, exchanging already placed ones in InDesign. I'm not much into Illustrator scripting, but it should be possible to write such a script.
With a lot of effort ;-)
I was hoping for an existing script or plugin, or a better workflow.
Well, i guess i'll have to live with the limitations.
Thanks for the replies.
Using multiple files for the same image, with different line widths? Unfortunately, some minor things can still change in the drawings, and that leads to having to make adjustments to every version of the drawing.
I think that part of the problem here is that you're using Illustrator where (IMHO) you ought to be using AutoCAD or something like that. Many CAD or CAD-related tools will let you define assemblies (or components, or etc.) that function exactly like placed files do in InDesign - edit the parent illustration, and the child illustrations update automatically.
So I would absolutely suggest that you look at the possibility of using Illy only as an interim tool. Are you yourself doing the illustrations from scratch in Illy, or is there some other person doing this work?
I'm not making the drawings in Illustrator.
The drawings originate from 3D software (done by another team), which are converted to a 2D projection of a (mostly) isometric perspective. I only do small adjustments in illustrator like drawing some cables (too hard to do this directly in the 3D software, i'm told), changing a button or LED state,...
No matter which software the drawings are coming from, the biggest problem for me is the stroke width of the drawings, which scales along with the placed image. Therefor for every image in InDesign doc, i have to make a copy of the placed file, and adjust the stroke width in Illustrator.