Rhino 8 - Raster printing line width issues

YEEEESSS me
Please help
Need to send prints to my client…

Before searching in posts to I have been struggling to find an issue for 4 hours already and found none
Same problem when using vector output
lines showing through the building

But worse using raster output, a real nightmare
No lines showing through the building
BUT line width completely erratic

I found out (at least) that playing with DPI settings make some changes
DPI default settings is 300

  • set to higher it will enlarge all line width.
  • set to lower (150) line width is “almost” OK

please see compared outputs in acrobat (window titles 100dpi / 150dpi / 300dpi)

Erratic is the less I can say.
If you dare set to 1200 DPI that’s what you get

All my layer line width are set to “Default” or “Hairline”
All line width object properties are set “By Layer”
Any change to line width in layers panel do not affect the PDF
Some blocks are not native Rhino built geometry (Sketchup) but most are “cleaned up”

I’m using a custom Display Mode
I’ll try a default one to check…

Please help

Regards

3 Likes

OKKKK

All raster AND lines showing through the building issues are related to
my custom Display Mode…

End of the nightmare

Hope this will help

4 Likes

Hello Karim,
resorting to Raster won’t help you escape the dream. the only good practice for me is to be able to generate PDFs with good quality vectors, no jagged edges, no disconnected lines all to the maximum possible accuracy and quality, and of course for vector is the file size.
Thus, I’m not willing to wake up from this nightmare until things get solved.

3 Likes

Thanks
:slight_smile: I hope I (we) will
haven’t tried hard yesterday to find out if I could or not have vector output, just managed to send my (raster) prints to my client…
I will let you know if I do

Is McNeel working on this issue ?

Regards

yes, they are. there is a walkaround way is to use the macro below instead of the file>print or CTRL+P

use this:
-_Print _Preview

walkaround way ?
I see no difference, using Print command line menu or “-_Print _Preview”
Both show lines showing through the building

Did I get something wrong ?
Is there a specific post / thread I should track ?

Thanks Tay

Both print dialogues (regular and macro) give the same results with lines showing through the building as you mentioned.

I should mention I’ve tested 8.0, 8.1, and 8.2 release candidates to no avail.

Oddly if I Toggle “Preview Selected Only” in Grasshopper I get even more lines showing through, despite nothing being selected and no nodes actively set to preview. So nothing should be showing but simply toggling that has wildly different results.

@Karim_tabbara what about your custom display mode specifically was causing the issue?

I’m running default Technical Display mode with Hidden Lines turned off and still having the issues.

Thanks

Hi Michael Vollrath

I’ve tried some of the standard Display modes
No matter what Display modes (Standard or Custom) the only one not showing “see through lines” is the Shaded (and my custom one based on this display)

Vector output is OK
But I want no shadows nor colors nor fillings.
That means I would have to set all layers to black and use Layer state, not being sure if any geometry overrides print color …

Hope that helps

How do you manage ?

Hi Michael Vollrath

I came up with a new Display Mode I called
“Monochrome Pure” :slight_smile:

Black & White (no add)
image

No isocurves, tangent anything, no Subd except boundaries, No clipping planes, No shades, no gloss, no reflection, no nothing, flat shading, custom material for all objects 100% White
Took some time to achieve

I use section styles for layers to be hatched or whatever
No playing with line width (or very little)

Does work fine with raster output
I handle small projects, the ones I used to process with SU, with raster outputs to…

Does NOT with vector output
I’ll wait for it to be fixed, but let me know please
Good luck

Thanks

3 Likes

Hi @Karim_tabbara,

Are you open to sharing the settings you used?

Or perhaps posting in this thread even:

I appreciate the dialogue!

Hi Michael Vollrath
For sure sharing all you want
Found the export option …
AKT Monochrome pure.ini (15.4 KB)

Let me know how it works for you
For sure, more to do to clean it up

Regards

1 Like

Thank you for sharing, I’ll give it a try!

@Karim_tabbara are you running Rhino 8.2 RC? If not, could you please give that a try. I also will need a simple 3dm file that shows the problem you are seeing. The less geometry the better.
Thanks,
-Steve

@stevebaer Hi Steve,

I stripped down this Rhino file to have basic geometry, layout stuff, and layers.
20231129_R8_Raster_Printing_Bug.3dm (4.8 MB)

Depending on what view gets printed in Raster, either the line thickness is completely wrong/large or invisible and nothing prints at all.

Thanks for looking into all this!

It appears that the issue of the invisible lines stems from “Hairline” line width setting. Even at 300 DPI, this results in an invisible line in Raster mode in my testing:

Raster Tests:

Layout Space:
image

Raster PDF:
image

Layer Linetype Setting (H = Hairline, D = Default):
image

Vector Test (Prints Perfectly Fine):

Line settings in Print Dialogue that yielded these results:

Default line width in Print Dialogue set to 1.0:

Layer Layout Print Width set to .13 (1 value above Hairline):

And another issue (Worth splitting into another bug topic?)

Layout Print Width column in Layers panel is showing Default despite the Print Width being set to 0.13:

Video showing this:

Thank you!

Same issue for me
Only way to set line width is “Print Width” Not “Layout Print Width” …

Dear Steve

I’m using Version 8 SR2 (8.2.23325.14001, 2023-11-21)
Evaluation SN: 6-1800-0108-221708-22222-19696 Karim Tabbara , AKT
(I purchased V7, waiting for Varq 3 to update V8)

I did NOT manage to reproduce :slight_smile: the see through problem while printing vectors with my file.
If I do I’ll send right away

Regards

Thanks, I’ve logged this at https://mcneel.myjetbrains.com/youtrack/issue/RH-78687/Raster-printing-line-width-issues

1 Like

I’m having issues with this raster printing to PDF too. The more I increase my print resolution, the thicker the edges and silhouettes become on the output. I’m on the latest service update of 8 and I’m trying to print from a layout. (No issues for printing from the model space.)

Cheers,
Jered

Hi Jered Allcock

I don’t remember exactly how I got rid of this problem, but I guess it was related with the display mode
Try some standard display mode to check.

If not … tell me i’ll try to find out

Regards

Hi Karim Tabbara

Wireframe
Ghosted
Shaded
X-ray
Rendered
Arctic

All print normally

Pen
Artistic
Monochrome
Technical

All print with edges and silhouettes scaling in thickness with print resolution despite altering raster based print settings. The one I’m mainly after is Monochrome as it’s absolutely perfect for the sort of drawings which I’m producing.

Thank you for looking into this for me.
Jered