Rhino Printing and Line thickness

Has anyone having print issues come across this?

Layout Space (Technical View Mode, Hidden Lines Off):

Printed Rhino PDF Result (Vector, Technical View Mode, Hidden Lines Off, Black & White Display Colors):

Note how open curves are showing through the elevation view from the doors/windows beyond.
Hidden lines are not enabled, ghost and transparency settings are not enabled.

Also if I switch the Print Dialogue to “Raster” it previews correctly and prints without the extra door/window lines showing through the building but then the line widths are messed up (despite no settings other than Raster/Vector being changed)

Raster Preview:

Raster Rhino 8 PDF Print:

Raster Rhino 7 PDF Print (Same settings):

-The lines do not have a forward draw order
-The lines are not preview lines from Grasshopper (Also GH is not open)

Hello @michaelvollrath
Couldn’t reproduce your issue , at least with simple box. but discovered that the linetype scaling can apply to the hidden lines as well where the segments won’t display properly.

Technical+Shading+NoHiddenLines.pdf.pdf (15.0 KB)
Technical+Shading+HiddenLines.pdf (51.1 KB)

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Good to know, I’ve seen this as well where 2" dashed lines appear as solid lines in Technical Vector despite showing correctly in R7 and R8 Raster

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@michaelvollrath would it be possible to post a very simple model that demonstrates what you are seeing? Thanks

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Hi @stevebaer ,

I’ll try to upload an example tomorrow yes

I appreciate it. The simpler the model the better

Any updates on the line weight issues?

While I am still having issues with lines showing through the geometry and some things not printing, the line weight issue isn’t happening in raster anymore. But also it seemed that vector isn’t showing any line weight change either now. So if I set the linea to a thicker weight they print small still.

I’ll try and upload an example file.

I’m running the latest Service Release btw

The file I’m working on I can’t upload. Maybe… I’ll draw a simple box and do a Save-As maybe.

Was there certain view styles that weren’t working? I can get the right lineweight in Vector… but that’s a mess in itself unfortunately.

Hello @michaelvollrath and @keithscadservices

Running (Rhino 8, 8.4.23356.10001)

The Line Thickness issues can be broken into 4 distinct Issues.
1- (Vector and Raster) Line Weight Scaling (This is exclusive to the newly released LineTypes) between Model Space and Layout Space. Reported Here
2- (Vector) Inconsistent Linetype Scaling between Curves and 3D Objects. lile the below
In the image below, Both Objects have the same Linetype assigned to them, the curves shows somehow properly with the correct linetype but the box does not.

3- (Raster) Inconsistent print Widths. in this case the 3D object shows double the thickness of the curves although both of the object types have the same linetype assigned to. like the image below

4- (Vector and Raster) When Object Thickness is Set to a Value in Pixel, it will be ignored.

@stevebaer @Trav
For Both (Vector & Raster) The issue of the newly introduced Linetypes lacks the idea of WYSIWYG (What you see is what you get) I am expected to waste a lot of hours test printing things, because it is guaranteed that, My Linewidth in the Model will never translate or scale properly in the Layout and it will never print correctly in either Vector, Raster or Both. Despite my excitement for the new features and capabilities, I find it impossible to generate a printable package of my design.

Update: I just saw @stevebaer updating the YT for next up, this is great! I hope this thread can be helpful to you. consider us as a helpful resource here
Print Issues.3dm (142.7 KB)
.

Happy Holidays Everyone.

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Thanks for assembling this breakdown and file @tay.othman !

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Tay: Thanks so much for your effort putting everything together. It’s one thing to spot a bug but break it down like you have… I can only imagine that it will expedite the cure.

I did this to a lesser extent in Rhino 7. I could get a decent result as long as I stuck to certain approaches and avoided other things. I was kind of hoping that R8 would be an improvement in every way imaginable. It still could be. If/when the printing issues get sorted out, the potential is through the roof.

For now I might actually revert back to R7. That will be a little hard because I’m really liking much of the new R8 features. Object, especially sub-object selection is just way way better in R8. It runs smoother too. I also finally did some okay looking renders (maybe I’m just getting better at them but R8 does seem better at it - I think they said there’s a new version of cycles?). I’ll have to see how saving my project in R7 goes… If I can model in R8 and just back-save to R7 that’s not so bad.

3 posts were split to a new topic: Points and control polygon are being printed

Thanks @tay.othman.
We appreciate the details, and especially for getting a file to test with.
There is a lot here, so I have tried to extract the bugs and confirm they are fixed or logged.

I am testing with in house daily build. So if you are not seeing a fix on your Rhino, that may be the reason why.

(1)
RH-79349 Linetype-Width-Set-to-Pixels-Not-Displaying-or-Printing

(2)
RH-79352 Breps-Linetype-Width-Not-Previewing-or-Printing-with-Vector

(3) The Linetype spacing (not the width) when comparing the Brep edges, to the curves looks correct to us with Raster now:

The Width on the Brep not the same as the curve
RH-79354 Inconsistent print Widths Between Brep and Curves


And vector output is struggling mode than Raster.
RH-79355/Linetype-Widths-Not-Printing-or-Previewing-Well-with-Vector

(4)
RH-78703 Linetype-Width-and-Pattern-Scale-Incorrect-on-Layout

(5)
Wish: Printable Selection

Kindly let me know if I missed anything.
Sincerely,
Mary Ann Fugier

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Any updates on the line weight issues?

@WATER85 Do you have a YT?
Most are YT’s public and you can see if they are “open” in the queue.
Or “in progress” which means they are being typed on.

Hi Mary Ann,
Dumb quesiton. What is a YT? I was one of the early ones to report the line thickness problem but don’t know if a YT was formed and never really saw any updates.
thanks,
Joe

YouTrack is the tool they use to log issues. Most of them are publicly viewable. Some are hidden because of things like attached client data.

Everything - JetBrains YouTrack (myjetbrains.com)

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Hello Joe.

Your reported issue is already logged on Youtrack
https://mcneel.myjetbrains.com/youtrack/issue/RH-78703/Linetype-Width-and-Pattern-Scale-Incorrect-on-Layout

well… learn something new everyday. So looks like it is still unresolved?