@dalelear @Gijs
Another example of ElmoPY doing better than Elmo and also not reporting the correct deviation still…
Elmo3.3dm (44.4 KB)
@mcvltd
The ElmoPy version creates a less than desired curvature graph imo.
I think you can better results With Elmo in this case, either using Uniformity None, or Custom (0.001)
left in the image is the Elmo version. With 0.001 Uniformity I get a deviation of 0.171694 vs 0.16365 for ElmoPy.
With Unitormity= none, the curvaturegraph is still better, and the deviation is 0.146061
@Gijs Thanks Gijs, I’ll take another look, haven’t been using numbers that small with custom uniformity - will try that that for my next rebuilds.
Hello Gijs,
I’m not sure if this has been discussed yet, but how does Elmo handle the End-Tangents?
Is there an option to 100% preserve the curve end tangents? That would be really helpful.
Actully preserving the end tangents is even more important to me than deviation of the overall curve.
@Cadworx
Yes, Elmo has options for match tangency on both end, at the start only, at the end only or none.
Hello Rob,
thank you for your reply, great to see you guys already considered this!
Will the Grasshopper (GH1) component also have those options (start, end, both)?
And a deviation output?
@Gijs Yes, agreed. Thank you.
Some notes though…
-
Deviation reporting is still not good, I get stretched deviation points rather than normals.
-
For ease of use I could really do with an interactive Uniformity slider for values between 0.005 and 0.0001
Values outside of this don’t tend to give me better results at all.
@mcvltd thanks, the deviation should be fixed, what’s your current SystemInfo, and can you send me that curve?
System info below -
Rhino 9 SR0 2025-2-4 (Rhino WIP, 9.0.25035.12305, Git hash:master @ 2ef72747dbd0ece04edffba24dee60582c380bfc)
License type: Commercial, build 2025-02-04
License details: Stand-Alone
Expires on: 2025-03-21
Windows 10 (10.0.19045 SR0.0) or greater (Physical RAM: 32GB)
.NET 7.0.0
Computer platform: LAPTOP - Plugged in [100% battery remaining]
Non-hybrid graphics configuration.
Primary display and OpenGL: NVIDIA RTX 3500 Ada Generation Laptop GPU (NVidia) Memory: 12GB, Driver date: 2-25-2025 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 572.60
> Integrated accelerated graphics device with 4 adapter port(s)
- Windows Main Display is laptop’s integrated screen or built-in port
Primary OpenGL: NVIDIA RTX 3500 Ada Generation Laptop GPU (NVidia) Memory: 12GB, Driver date: 2-25-2025 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 572.60
> Integrated accelerated graphics device with 4 adapter port(s)
- Windows Main Display is laptop’s integrated screen or built-in port
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: 2-25-2025
Driver Version: 32.0.15.7260
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 12282 MB
Rhino plugins that do not ship with Rhino
C:\Program Files\Rhino 9 WIP\Plug-ins\ConstraintsUI.rhp “Constraints UI” 9.0.25035.12305
Rhino plugins that ship with Rhino
C:\Program Files\Rhino 9 WIP\Plug-ins\Commands.rhp “Commands” 9.0.25035.12305
C:\Program Files\Rhino 9 WIP\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 9 WIP\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 9.0.25035.12305
C:\Program Files\Rhino 9 WIP\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 9.0.25035.12305
C:\Program Files\Rhino 9 WIP\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 9 WIP\Plug-ins\MeshCommands.rhp “MeshCommands” 9.0.25035.12305
C:\Program Files\Rhino 9 WIP\Plug-ins\RhinoCycles.rhp “RhinoCycles” 9.0.25035.12305
C:\Program Files\Rhino 9 WIP\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 9.0.25035.12305
C:\Program Files\Rhino 9 WIP\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 9 WIP\Plug-ins\Displacement.rhp “Displacement”
C:\Program Files\Rhino 9 WIP\Plug-ins\SectionTools.rhp “SectionTools”
Original curves =
Elmo4.3dm (46.9 KB)
@mcvltd this is what I currently see, custom smoothing = 0.001
If you see something else, then I think you should get better results in the next WIP, which will be out soon
@Gijs Yes, I see something different…
with a zoom-in on that deviation below…
Looking forward to the next wip! In the meantime I’ll send all my work over to you… 
actually, looking at your WIP, I missed that you were using a feb build, I think you should already be able to download a newer version that has this change in.
I just get this when I ask it to check for an update…
“Your installation is the newest available.”
I’ll wait until this one runs out, no panic! 
Revised Click “Check for Update” and Rhino may respond “Your installation is the newest available” even if a newer version is available. In some situations the response may be that a new version is available. The McNeel staff is aware that Rhino provides an incorrect response in that situation but has said it will not be changed.
After the “Your installation is the newest available” response click on “Check Now” to see if there is a newer version available.
@davidcockey Oh! Thanks David, wasn’t aware of that.
@dale It looks like this request was “lost” after the YouTube item was created and assigned to Rafael. Does it need to be reassigned to someone other than Rafael?
Thanks @davidcockey - I’ve moved it to the other Dale…
– Dale
How about moving the Elmo command capabilities to the existing Rebuild command? I think the Rebuild name is much clearer than the weird Elmo.
i´d love to have Elmo in RhinoCommon , python.