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White Layers show as black, after going into 3d mode and back to drafting mode.

Anonymous

White Layers show as black, after going into 3d mode and back to drafting mode.

Anonymous
No aplicable

I usually only use Autocad for its simple drafting tools, but I did an experiment trying to make 3d objects recently which brings me into uncharted territory for myself. I went from the Drafting & Annotation workspace to the 3D modeling workspace, and back again after completing my experiment. However when I came back it wasn't the same. One thing that is different is all my white layers show up and appear black in model space. I've set my workspace background to black, so these layers are invisible. They are on layer 7 and when I searched my issue my understanding is this layer is always supposed to appear visible (black on a white background, or white on dark or black background). So I'm not sure why this happened. I had another layer with colour of 255 (white). When I looked at the layer properties that layer showed its colour as- 255, 255, 255, but even the little box showing layer colour was black. I assumed it had 3 colours assigned to it to help show the object in 3D space, so I think my issues are related to switching workspaces without really knowing what I was doing. Can someone help me get back to my standard drafting space where everything works the way it seems it ought to?

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pendean
Community Legend
Community Legend
Share with us your actual DWG file please.
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dmfrazier
Advisor
Advisor

"One thing that is different is all my white layers show up and appear black in model space. I've set my workspace background to black, so these layers are invisible. They are on layer 7..."

 

I assume by "layer 7" you actually mean "a layer that has color 7 assigned".

 

I assume by "white layers" you mean "objects on layers that are assigned a white color". Can you confirm that the layers you believe to be white are actually set up to use color 7? Can you confirm that the objects themselves don't have a different color assigned to them (not ByLayer) which overrides the layer color?

 

Note that the background color settings are not stored in the Workspace; they are stored in the Profile. So, changing the Workspace should not change your model space background color (or any other drawing window interface color for that matter), but changing the Profile certainly can.

 

Is it possible that your current profile actually has a non-black (but very black-looking) background color?

 

"...layer showed its colour as -255, 255, 255, but even the little box showing layer colour was black. I assumed it had 3 colours assigned to it to help show the object in 3D space..."

 

Those are actually not "3 colours", but a code that specifies a "True Color" - they are basically scales (hues) of Red, Green, and Blue (RGB) that combine to produce a color that is more precise and nuanced than the AutoCAD Index colors. the color defined as 255, 255, 255 would appear "white" on a black (or black-looking) background, but you indicate that the first number is negative. I don't know if this is a mistake (typo) or if something changed it to negative (somehow).

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Anonymous
No aplicable

Your assumptions are right. The negative sign before the first 255 was just supposed to be a dash, they are all positive 255. You're right, changing my workspace didn't change the background, it only changed the colour of my white layers to appear black. It also caused my layer properties toolbox to appear above my main top ribbon, which is not where I usually keep it. I manually changed the background afterwards just to be sure. I tried both "dark" and "black". I did confirm that these layers that were appearing black were assigned to colour number 7 or number 255 (even the small box showing colour in the layer properties tab was appearing black even though when I checked it was assigned to white. I closed autucad altogether and restarted it, and it was still the same. I restarted my computer and I'm no longer experiencing this problem. If I can recreate this (I'm a little scared to try) I'll try to post so you can see. I appreciate the help, and if you have theories about why this happened I'd like to follow the logic. Thanks! 

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dmfrazier
Advisor
Advisor

"...changing my workspace didn't change the background, it only changed the colour of my white layers to appear black."

 

I think what you are describing here may be a change in the visual style that (may have) accompanied the change in workspace (or profile). (I don't know what is the relationship between workspace and visual style.)

 

"It also caused my layer properties toolbox to appear above my main top ribbon, which is not where I usually keep it."

 

Locations (and other properties) of toolbars, palettes, etc. (interface elements) are definitely stored in workspaces, so this sort of thing should not be unexpected when switching workspaces.

 

"I did confirm that these layers that were appearing black were assigned to colour number 7 or number 255 (even the small box showing colour in the layer properties tab was appearing black even though when I checked it was assigned to white."

 

Color #7 will always appear white on a black background and black on a white background (which is why it's often referred to as "white/black").

Color 255 (index color, or RGB color 255,255,255) is actually an extremely light shade of gray (grey) and will effectively disappear if the background is set to white/black. AutoCAD will not let you change the color of certain interface elements that are "traditionally" white/black (color 7) (crosshairs, for example) to 255. It will automagically change it to color 7 (because it knows better what's good for you than you do). This is not true for object colors, however.

 

"...if you have theories about why this happened..."

 

One thing to investigate is whether or not your method of launching AutoCAD causes any changes to your profile (or other settings). This can be done by specifying a profile to load in the shortcut you use (or running a script), or by automation that runs during program startup or drawing open.

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