topic Re: Line weights not displayed correctly in AutoCAD Forum

Line weights not displayed correctly

Anonymous — Wed, 23 Apr 2025 06:05:33 GMT

I made a test with line weights, listing from 0.00 to 0.40 mm but for some AutoCAD only seems to display 3 line weights. Here is the test, and lwdisplay is set to 1:

However, when I generate a PDF with it (with autocad general documentation print) it does display correctly and you can actually tell the difference between 0.00 and 0.25 mm visually:

Is there a way to fix this and view the lines above (model) like the ones below (printed viewport)?

Betreff: Line weights not displayed correctly

cadffm — Wed, 23 Apr 2025 06:28:02 GMT

Hi,

NO. Acad lwdisplay is just a helper for your eyes, what does not show the real lineweight.

In Options, you can set lineweight displaying bolder, but for all lineweights.

Betreff: Line weights not displayed correctly

Anonymous — Wed, 23 Apr 2025 06:38:28 GMT

Can you point me where you can set that in options?

Betreff: Line weights not displayed correctly

cadffm — Wed, 23 Apr 2025 06:56:29 GMT

Click in OPTIONS in my answer above, it's a link to the Help[F1]

Betreff: Line weights not displayed correctly

cadffm — Wed, 23 Apr 2025 06:59:16 GMT

This Lineweight settings Button will open the Lineweights settings dialog

Re: Line weights not displayed correctly

paullimapa — Wed, 23 Apr 2025 18:41:48 GMT

Re: Line weights not displayed correctly

Anonymous — Thu, 24 Apr 2025 11:57:51 GMT

Thanks. I see there is no solution.

Re: Line weights not displayed correctly

Brock_Olly — Thu, 24 Apr 2025 12:20:43 GMT

Our 'solution' is we all draw with lineweights off, meaning all lines are the same thickness in autocad.
We assign weights to colours using the plot styles.
White (black) > tick
Red > thin
Yellow > medium
Green >...

Purple >...
etc.

Re: Line weights not displayed correctly

paullimapa — Thu, 24 Apr 2025 13:08:17 GMT

Which sounds exactly like what AutoCAD offers from the beginning of time with ctb color pen weight assignments. I realized having worked many years with coworkers in the industry that it’s very easy for the eye to associate a set of different colors with their respective printed line weights. This is how I derived the family of colors which provide up to 6 different lineweights based on color hue:

Cyan = Extra Thick

Yellow = Thick

Magenta = Medium

Green = Thin

Red .= Fine

Blue = Extra Fine

Once you establish this kind of hierarchy anything that’s red on the screen your brain automatically recognizes as objects that would print lighter than compared to others that look yellow on the screen and etc.

Re: Line weights not displayed correctly

pendean — Thu, 24 Apr 2025 13:15:27 GMT

@Anonymous What you crave is going to only be visible in a pre-configured layout (aka on your output paper) only, not in modelspace, and only when you are zoomed in close enough to see your low-variations in your example.

Welcome to CAD drafting.