ExtendSrf extension distance scale is off (Bug?)

Rhino Rhino for Windows
,
1

I am not sure what’s going on exactly with ExtendSrf, but when you specify a distance the scale is off from the input. For instance a 1mm extension gives 67.633 mm and for other distances, 2=68.633, 5=71.633, 10=76.633.

Seems to add 66.633 above requested distance, but just in this case. The extra amount depends on the surface.

Or has something changed in Rhino 8 and is this working as intended? Rhino 6 accurately extends the surface by distance.

Rhino 8 SR4 2024-2-6 (Rhino 8, 8.4.24037.15001, Git hash:master @ bee9cb852c752350676ca6bc7f3f6946b5bbc6b7)
License type: Commercial, build 2024-02-06
License details: Cloud Zoo

Windows 10 (10.0.19045 SR0.0) or greater (Physical RAM: 32GB)
.NET 7.0.0

Computer platform: DESKTOP 

Standard graphics configuration.
  Primary display and OpenGL: NVIDIA GeForce RTX 2070 (NVidia) Memory: 8GB, Driver date: 12-6-2023 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 546.33
    > 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: 8x
  Mip Map Filtering: Linear
  Anisotropic Filtering Mode: High
  
  Vendor Name: NVIDIA Corporation
  Render version: 4.6
  Shading Language: 4.60 NVIDIA
  Driver Date: 12-6-2023
  Driver Version: 31.0.15.4633
  Maximum Texture size: 32768 x 32768
  Z-Buffer depth: 24 bits
  Maximum Viewport size: 32768 x 32768
  Total Video Memory: 8 GB

Rhino plugins that do not ship with Rhino

Rhino plugins that ship with Rhino
  C:\Program Files\Rhino 8\Plug-ins\SolidTools.rhp	"SolidTools"	
  C:\Program Files\Rhino 8\Plug-ins\Commands.rhp	"Commands"	8.4.24037.15001
  C:\Program Files\Rhino 8\Plug-ins\rdk.rhp	"Renderer Development Kit"	
  C:\Program Files\Rhino 8\Plug-ins\RhinoRenderCycles.rhp	"Rhino Render"	8.4.24037.15001
  C:\Program Files\Rhino 8\Plug-ins\rdk_etoui.rhp	"RDK_EtoUI"	8.4.24037.15001
  C:\Program Files\Rhino 8\Plug-ins\NamedSnapshots.rhp	"Snapshots"	
  C:\Program Files\Rhino 8\Plug-ins\MeshCommands.rhp	"MeshCommands"	8.4.24037.15001
  C:\Program Files\Rhino 8\Plug-ins\RhinoCycles.rhp	"RhinoCycles"	8.4.24037.15001
  C:\Program Files\Rhino 8\Plug-ins\RhinoCode\RhinoCodePlugin.rhp	"RhinoCodePlugin"	8.4.24037.15001
  C:\Program Files\Rhino 8\Plug-ins\Toolbars\Toolbars.rhp	"Toolbars"	8.4.24037.15001
  C:\Program Files\Rhino 8\Plug-ins\3dxrhino.rhp	"3Dconnexion 3D Mouse"	
  C:\Program Files\Rhino 8\Plug-ins\Displacement.rhp	"Displacement"	
  C:\Program Files\Rhino 8\Plug-ins\SectionTools.rhp	"SectionTools"
2

Hi Niels - this is indeed broken and has, I believe, been fixed in 8.5- you can try that if you set Options > Updates and Statisics > Update frequency > Service release candidate.

-Pascal

1 Like