Hi everyone,
Does anyone know a way to export hidden lines in DWG in SU2020?
Regards,
Greg
Unhide/Unsoften the geometry.
Oh. That’s different. Set the face style to Wireframe.
Are you exporting as 2D or 3D?
If you are doing 2D you get the back edges if you are in wireframe for Face Style.
No. “Hidden lines” are shown in raster graphics (on your screen and raster image exports ) only.
What you can do is to send the model to LayOut and place on top of each other two identical vector rendered views of the model: one with hidden lines and the other in wireframe with dashed lines. That can then be exported to DWG:
1 Like
Thank you for sharing this tip!
In LO, by stacking viewports, it works great.
But if I export a .dwg, it turns out that the dashed line are not display correctly, both views are solid lines.
Any idea to further solve this issue would be appreciated! Thank you.
You can also export directly from SketchUp the 2d image you have on the screen, in perspective or in parallel projection: File: Export: 2d graphic: choose file format Autocad…
Thank you Alan4 for your prompt reply!
I’ve tried. The hidden line is not display correctly in the .dwg file.
Even there’s a checkbox in the export dialog: " Always prompt for hidden line options" .
Anything I’ve missed?
Have you looked at the Autocad export options just before saving ?
You will have exactly what you have on the screen. 2d if you have chosen parallel view (and choose scale 1:1 in Autocar 2d export options), a 2d perspective image if you are in 3d.
This is a very important function that I used a lot before Layout existed!
Thank you Alan4!
I’m not sure if I follow your instruction completely or not. So I attached three screenshots.
Please let me know if there’s anything that I’m not doing correctly. Thank you again.
- The hidden lines (back edges) plot correctly in SU. I suppose this is raster image.
- My 2d .dwg export settings.
- Open the .dwg up in AutoCAD. I can’t find the hidden lines.
It seem correct for me. Maybe verify the options about profile lines.
Way do you name « back edges », the dot lines ?
Guess I have to figure something out. Still appreciate your time!
I read DaveR’s reply, this gives me an idea that the “back edges”(hidden lines) are not vector lines, but a raster image real-time-rendered within SU. This raster image may not be convert to vector lines that .dwg can interpret and plot correctly.
Yes right.
Except that the logic is there is faces in front, and it is an interpretation of the developers to do so for doted back lines.
At this time, you may only display as wireframe, and export a second dwg file. With both files hidden line and wireframe set to doted lines in AutoCad, you may have the result you expect.
“Back edges” is a raster display feature. It doesn’t export to AutoCad. I would place two vector rendered scenes of the model into LayOut, one with hidden lines, the other with wireframe set to a dashed linetype, superpose them and export from there.