I’ve never known LO able to make dashed lines by simply putting a model view behind a translucent shape. You need to either edit the style of the SU scene or adjust the line styles in the model view using the tags. And what are you tending the view in - raster, hybrid or vector?
Regarding translucent export - you may try turning off JPG compression in the export dialog and make sure your output is set to high.
I have tried all your recommendations. In my case, it’s not effective to use tags to change two dash lines. As you can see what needs to be dashed is sometimes only partially dashed. And needs to vary between scenes. Please see see attached screenshot of LayOut and exported PDF. Again, this was not an issue before updating my iOS operating system.
dotted pattern. That way, no need to stack viewport or play with tags, the lines behind the white dots will hide and look dashed. Sure, not all the dashes will look exactly the same, but it’s a neat trick.
But yeah, since some fills are broken, you’ll have to go the “normal” way amigo
It appears that all of the white fill patterns are faulty. Really too much work to separate out all the foundations as a different tag. Again, I’ve been using this technique for years and haven’t had a problem until I updated my macOS and possibly my Epson printer driver. But not sure if this has anything to do with the printer driver when creating a PDF.
bmike, can you somehow send me the white dot transparency (png?) that you created? I don’t have use of Photoshop and replaced it a few years ago with affinity. Not sure I can create a new transparency using that program.