Surface can't be extended with different base point

Rhino
1

After using “setbasepoint” this surface won’t extend in the direction of the arrow.

unable-to-extend-with-new-basepoint.3dm (3.7 MB)

(Not sure why the file is 4mb large all of a sudden… I only did “export selection” on a simple surface and simple arrow.)

System Information 
Rhino 8 SR14 2024-11-12 (Rhino 8, 8.14.24317.14001, Git hash:master @ 69ab12ed53cf1e6d17f23ab5fec3c3f7216df72d)
License type: Commercial, build 2024-11-12
License details: Cloud Zoo

Windows 10 (10.0.19045 SR0.0) or greater (Physical RAM: 63GB)
.NET 7.0.0

Computer platform: DESKTOP 

Standard graphics configuration.
  Primary display and OpenGL: NVIDIA GeForce RTX 3090 (NVidia) Memory: 24GB, Driver date: 8-14-2024 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 560.94
    > Accelerated graphics device with 4 adapter port(s)
        - Windows Main Display attached to adapter port #0

Secondary graphics devices.
  AMD Radeon(TM) Graphics (AMD) Memory: 1GB, Driver date: 8-27-2024 (M-D-Y).
    > Accelerated graphics device with 5 adapter port(s)
        - There are no monitors attached to this device!

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: 4x
  Mip Map Filtering: Linear
  Anisotropic Filtering Mode: High
  
  Vendor Name: NVIDIA Corporation
  Render version: 4.6
  Shading Language: 4.60 NVIDIA
  Driver Date: 8-14-2024
  Driver Version: 32.0.15.6094
  Maximum Texture size: 32768 x 32768
  Z-Buffer depth: 24 bits
  Maximum Viewport size: 32768 x 32768
  Total Video Memory: 24 GB

Rhino plugins that do not ship with Rhino
  C:\Users\Robert\iCloudDrive\Rhino\FinTools.rhp	"FinTools"	0.1.8321.13786
  C:\Users\Robert\Desktop\x\XNurbsRhino8.rhp	"XNurbs"	

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"	8.14.24317.14001
  C:\Program Files\Rhino 8\Plug-ins\WebBrowser.rhp	"WebBrowser"	
  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\IdleProcessor.rhp	"IdleProcessor"	
  C:\Program Files\Rhino 8\Plug-ins\RhinoRenderCycles.rhp	"Rhino Render"	8.14.24317.14001
  C:\Program Files\Rhino 8\Plug-ins\RhinoRender.rhp	"Legacy Rhino Render"	
  C:\Program Files\Rhino 8\Plug-ins\rdk_etoui.rhp	"RDK_EtoUI"	8.14.24317.14001
  C:\Program Files\Rhino 8\Plug-ins\NamedSnapshots.rhp	"Snapshots"	
  C:\Program Files\Rhino 8\Plug-ins\MeshCommands.rhp	"MeshCommands"	8.14.24317.14001
  C:\Program Files\Rhino 8\Plug-ins\IronPython\RhinoDLR_Python.rhp	"IronPython"	8.14.24317.14001
  C:\Program Files\Rhino 8\Plug-ins\RhinoCycles.rhp	"RhinoCycles"	8.14.24317.14001
  C:\Program Files\Rhino 8\Plug-ins\Toolbars\Toolbars.rhp	"Toolbars"	8.14.24317.14001
  C:\Program Files\Rhino 8\Plug-ins\3dxrhino.rhp	"3Dconnexion 3D Mouse"	
  C:\Program Files\Rhino 8\Plug-ins\BlockEdit.rhp	"BlockEdit"	8.14.24317.14001
  C:\Program Files\Rhino 8\Plug-ins\Displacement.rhp	"Displacement"	
  C:\Program Files\Rhino 8\Plug-ins\SectionTools.rhp	"SectionTools"
1 Like
2

hi @eobet
What I see is that the surface extends more or less depending the point clicked. Clicking the surface at the shortest side allows me to extend the surface more than on the longest side. Do you see the same?

RH-84811 ExtendSrf: does not extend always

1 Like
3

Ah, I should have clarified: It’s only when I set the base point in the corner of the short side that it won’t extend at all for me.

4

I think the YT I made should cover this.

1 Like