I am working on house plans. I want to work in 2D only, and use color for different items in the structure. I would like to be able to draw in multiple overlays. By this I mean I would like to draw wall studs, then draw plumbing superimposed on that, then electric wiring superimposed on that, then drywall superimposed on that; so all are stacked on top of each other, and still be able to make any one or more disappear and re-appear at will, each overlay opaque, and all in 2D.
The real world equivalent of what I want to do would be sheets of paper of various sizes, shapes, and colors all in a pile, and they can be removed one-by-one to see underlying sheets, and then replaced in order.
Everything I have tried either results in Z-fighting shimmering of superimposed colored objects, and/or when I move an object a hole is left in the underlying object, and/or the underlying object is visible thru the overlying object. I have tried grouped and un-grouped objects over or under each other, opening the underlying group for editing to superimpose an overlying object, components, and various TAG setups. All result in z-fighting or hole cutting or or loss of color.
I am aware that I could do much of this by giving each overlay some 3D thickness, but I only need 2D and I have found that working with objects with thickness leads to errors such as pulling a guideline from the wrong edge of a thin object, or an object being out of plane with others.
Using grouping I was able to get partial success. Inside a large rectangle, I drew a medium rectangle touching no edges, then a small rectangle similarly inside that, then painted them different colors. I could move, hide, or delete with no z-fighting or hole cutting. But then I found that if an inner rectangle touches opposite sides of it’s outer rectangle, like a stripe on a flag, then hiding or deleting the stripe cuts the outer rectangle in two.
Any help would be much appreciated. Thanks.