Offset error Trim option

The Offset command generates an incorrect result in some instances with Trim=No option. The offset curve is not the specified distance from the initial curve in some instances.

With Trim=Yes the offset curve is exactly the specified distance from the initial curve.

Example: Offset Error 20210916DC.3dm (1.6 MB)


Rhino 7 SR11 2021-9-14 (Rhino 7, 7.11.21257.07001, Git hash:master @ f3e5632493b0a604bf7ed37e86dbb9b00e0ea542)
License type: Commercial, build 2021-09-14
License details: Cloud Zoo

Windows 10.0.19043 SR0.0 or greater (Physical RAM: 64Gb)

Computer platform: DESKTOP

Standard graphics configuration.
Primary display and OpenGL: NVIDIA GeForce RTX 2080 Ti (NVidia) Memory: 11GB, Driver date: 8-5-2021 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 471.68
> 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
Redraw scene when viewports are exposed: On
Graphics level being used: OpenGL 4.6 (primary GPU’s maximum)

Anti-alias mode: 4x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: High

Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 8-5-2021
Driver Version: 30.0.14.7168
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 11 GB

Rhino plugins that do not ship with Rhino
C:\Program Files\Orca3D V2\Orca3D.rhp “Orca3D” 2.0.22.0

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 7\Plug-ins\Commands.rhp “Commands” 7.11.21257.7001
C:\Program Files\Rhino 7\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 7\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 7.11.21257.7001
C:\Program Files\Rhino 7\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 7.11.21257.7001
C:\Program Files\Rhino 7\Plug-ins\rdk_ui.rhp “Renderer Development Kit UI”
C:\Program Files\Rhino 7\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 7\Plug-ins\RhinoCycles.rhp “RhinoCycles” 7.11.21257.7001
C:\Program Files\Rhino 7\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 7.11.21257.7001
C:\Program Files\Rhino 7\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 7\Plug-ins\Displacement.rhp “Displacement”
C:\Users\dcock\AppData\Roaming\McNeel\Rhinoceros\packages\7.0\PanelingTools\2021.3.2.446\PanelingTools.rhp “PanelingTools”
C:\Users\dcock\AppData\Roaming\McNeel\Rhinoceros\packages\7.0\SectionTools\2021.4.21.831\SectionTools.rhp “SectionTools”

1 Like

Thanks, I see that.

RH-65627 Offset: results are different depending on Trim

-Pascal

1 Like