from a single segment curve: just noticed ExtractPipedCurve command gives an open mesh. I assumed to get a closed mesh.
Hi Matteo. Can you please run systeminfo in your Rhino command line as well as post the example file? Thanks.
It happens with any drawn segment, on any PC I used before, also with current the WIP version. Just never bothered reporting this.
ExtractPipedCurve OpenMesh.3dm (64.2 KB)
Rhino 8 SR27 2025-12-23 (Rhino 8, 8.27.25357.11371, Git hash:master @ 4f7e78056cadbad051d03c30f40683a64dcc7a5d)
License type: Commercial, build 2025-12-23
License details: Stand-Alone
Windows 11 (10.0.26200 SR0.0) or greater (Physical RAM: 32GB)
.NET 8.0.14
Computer platform: DESKTOP
Standard graphics configuration.
Primary display and OpenGL: NVIDIA GeForce RTX 3060 (NVidia) Memory: 12GB, Driver date: 12-30-2025 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 591.74
Accelerated graphics device with 4 adapter port(s)
- Windows Main Display attached to adapter port #0
OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
GPU Tessellation is: On
Redraw scene when viewports are exposed: On
Graphics level being used: OpenGL 4.6 (primary GPU’s maximum)
Anti-alias mode: 8x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: High
Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 12-30-2025
Driver Version: 32.0.15.9174
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 12 GB
Rhino plugins that do not ship with Rhino
C:\ProgramData\McNeel\Rhinoceros\8.0\Plug-ins\Datasmith Rhino Exporter (d1fdc795-b334-4933-b680-088119cdc6bb)\DatasmithRhino8.rhp “Datasmith Exporter” 5.6.1.0
C:\Program Files\Rhino 8\Plug-ins\Tibidabo\VisualARQ.rhp “VisualARQ”
C:\Program Files\Rhino 8\Plug-ins\Tibidabo\Tibidabo.rhp “Tibidabo”
C:\Users\m.biella\AppData\Roaming\McNeel\Rhinoceros\BlockEditNew\BlockEditNew_V8.rhp “BlockEdit” 1.0.0.0
C:\Users\m.biella\AppData\Roaming\McNeel\Rhinoceros\packages\8.0\RhinoBanana\0.1.10\RhinoBanana.rhp “RhinoBanana” 0.1.10.0
Rhino plugins that ship with Rhino
C:\Program Files\Rhino 8\Plug-ins\Commands.rhp “Commands” 8.27.25357.11371
C:\Program Files\Rhino 8\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 8\Plug-ins\RhinoScript.rhp “RhinoScript”
C:\Program Files\Rhino 8\Plug-ins\SectionTools.rhp “SectionTools”
C:\Program Files\Rhino 8\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 8.27.25357.11371
C:\Program Files\Rhino 8\Plug-ins\RhinoRender.rhp “Legacy Rhino Render”
C:\Program Files\Rhino 8\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 8.27.25357.11371
C:\Users\m.biella\AppData\Roaming\McNeel\Rhinoceros\packages\8.0\PanelingTools\2024.8.20.677\PanelingTools.rhp “PanelingTools”
C:\Program Files\Rhino 8\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 8\Plug-ins\MeshCommands.rhp “MeshCommands” 8.27.25357.11371
C:\Program Files\Rhino 8\Plug-ins\IronPython\RhinoDLR_Python.rhp “IronPython” 8.27.25357.11371
C:\Program Files\Rhino 8\Plug-ins\RhinoCycles.rhp “RhinoCycles” 8.27.25357.11371
C:\Program Files\Rhino 8\Plug-ins\Grasshopper\GrasshopperPlugin.rhp “Grasshopper” 8.27.25357.11371
C:\Program Files\Rhino 8\Plug-ins\Displacement.rhp “Displacement”
C:\Program Files\Rhino 8\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 8.27.25357.11371
C:\Program Files\Rhino 8\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
I am reporting that using that command gives me always an open mesh, but I think I should get a closed mesh
It has been reported as a bug. I’ve added this thread to bump it up. Hopefully we can get this into Rhino 9.
RH-63269 ExtractPipedCurve: Open meshes