Rhino WIP Clipping section drawing moving/export to dwg issues

Serengeti (Rhino WIP)
1

Hello Rhino Development Team,

I have started testing the new Rhino 9 WIP, and there are many great improvements that I really appreciate. However, two issues are preventing me from using it effectively for producing AutoCAD drawings based on a Rhino 3D model.

1. DWG Export of Clipping Section Drawings (CSD) Fails

I created several Clipping Section Drawings (CSD) and attempted to export them to DWG format. Unfortunately, the export fails:

  • the resulting DWG file has a zero file size,

  • and it cannot be opened in AutoCAD.

This makes it impossible to use CSDs in downstream CAD workflows.

2. CSD Loses Link to the Clipping Section After Moving

In Rhino 9 WIP, CSDs are generated as blocks — which is a great improvement.
However, after I move the generated CSDs to arrange them like on a 2D drawing layout within Rhino, the link between the Clipping Section / 3D model and the CSD appears to break. As a result:

  • modifying the 3D model does not update the corresponding CSD,

  • even forcing a manual update has no effect.

Interestingly, if I create a new CSD from the same existing Clipping Section, the previously created CSD suddenly updates correctly. This suggests the original link still exists, but becomes inactive after moving the block.

I am really looking forward to these issues being resolved, as reliable CSD functionality is essential for my workflow.

2

Hei Anton -

I’m unable to reproduce that issue here.

In a quick test, simply creating a block drawing and moving that keeps the link to the parent object and updates fine.

From time to time, I do run into issues with updating the drawing and lines appearing that shouldn’t be there, but when then try to reproduce that, all goes fine.

If you have found a reliable way to reproduce an issue here, please post a sample 3dm file and the steps that are required for this to happen.
Thanks,
-wim

3

Hei Wim,

Thank you for the quick reply.

Here is a capture showing the Clipping Plane (ClPl) block failing to export to DWG as described.

Regarding the issue with moving the CSD blocks:
yes, it does not occur in simple models, but something seems to break in more complex setups. I will try to capture this as well the next time I encounter it and will share a reproducible example.

Thanks,
Anton

4

Here comes 3dm

Export box.3dm (45.0 KB)

5

Takk, Anton -

I’m getting a 29 KB dwg file exported from your 3dm file.
Could you try with the “Default” DWG export scheme to see if that makes a difference?
-wim

6

Hei Wim,

None of the export schemes worked. Reinstalling Rhino also didn’t change anything.

However, if I explode the block, everything exports correctly.
But the unexploded Clipping Section Drawing block does not export to DWG under any circumstances.

So the problem seems to be specifically connected to the CSD being a block.

I hope this helps to narrow down the issue.

Best regards,
Anton

7

Hei Wim,

I see now that everything I mentioned have been fisked in the latest updates of R9, thx a lot!

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