Point cloud - points disappear when using clipping plane

Rhino Rhino for Windows
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1

Hey forum

I have a problem where I try to print PDFs of a pointcloud (colored).
When using a clipping plane to get plan and sections, some of the points disappear.
This happens when activating the clipping plane.

As you can see on the screenshots, the points disappear when I pan around. But in the layout the points are missing the entire time - meaning I have missing points when printing PDF (I have tried differend PDF printers)

Rhino help 01
Rhino help 011835×1009 224 KB

image
image1843×1071 205 KB

The point cloud is .E57 file
I’m using Rhino 6 SR35 2021-8-10 (Rhino 6, 6.35.21222.17001,

How can I fix this problem

2

Hi Tommy, Can you provide your SystemInfo as well? (type in the Rhino command line)

How many points in the cloud? (object property details, or the What command)

Thanks

3

Hey Japhy, here you go:

Systeminfo:
Rhino 6 SR35 2021-8-10 (Rhino 6, 6.35.21222.17001, Git hash:master @ 073ac7b225c67348731c6597127b9410126c3139)
License type: Commercial, build 2021-08-10
License details: Stand-Alone

Windows 10.0.0 SR0.0 or greater (Physical RAM: 32Gb)
Machine name: DESKTOP-U9C494M

Computer platform: DESKTOP

Standard graphics configuration.
Primary display and OpenGL: NVIDIA GeForce GTX 1660 Ti (NVidia) Memory: 6GB, Driver date: 3-17-2022 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 512.15
> 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

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: 3-17-2022
Driver Version: 30.0.15.1215
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 6 GB

Rhino plugins
C:\Program Files\Rhino 6\Plug-ins\Commands.rhp “Commands” 6.35.21222.17001
C:\Program Files\Rhino 6\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 6\Plug-ins\RhinoRender.rhp “Rhino Render”
C:\Program Files\Rhino 6\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 6.35.21222.17001
C:\Program Files\Rhino 6\Plug-ins\rdk_ui.rhp “Renderer Development Kit UI”
C:\Program Files\Rhino 6\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 6\Plug-ins\RhinoCycles.rhp “RhinoCycles” 6.35.21222.17001
C:\Program Files\Rhino 6\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 6.35.21222.17001
C:\Program Files\Rhino 6\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 6\Plug-ins\Displacement.rhp “Displacement”

20 Pointclouds - totalling: 42.371.720 points
Point cloud with 2630531 points.
Point cloud with 1928442 points.
Point cloud with 1574321 points.
Point cloud with 1436482 points.
Point cloud with 2737939 points.
Point cloud with 2161315 points.
Point cloud with 2380669 points.
Point cloud with 2671338 points.
Point cloud with 2149191 points.
Point cloud with 2415157 points.
Point cloud with 2301749 points.
Point cloud with 2655446 points.
Point cloud with 2031181 points.
Point cloud with 2498372 points.
Point cloud with 2287851 points.
Point cloud with 2303836 points.
Point cloud with 1450883 points.
Point cloud with 1186146 points.
Point cloud with 856450 points.
Point cloud with 1822291 points.
Point cloud with 892130 points.

The problem is in plan and section(elevation) views - not perspective

4

Hej Tommy -

Do you also see the problem when you are only using one of these pointclouds, or is the problem related to the amount of either pointcloud objectes or total points?
-wim

5

Hej

The problem is still occuring when only one of the point clouds are shown

6

Hej Tommy -
I’m not able to reproduce this issue with a point cloud file that I have laying around.
Could you upload your file with only one of the point clouds to Rhino - Upload to Support - make sure to include the link to this thread in the comments field.

And, just to make sure, did you try a new file with only one of those point clouds? From that answer, it sounds like you might have turned off the layers or simply hid the other point clouds.
-wim

7

Hey Wim

Your assumption is correct - I did try again where i deleted the other pointclouds, but the problem still stands

Per you request I have uploaded a file containing the single pointcloud

8

Hi Tommy -

Thanks for that file.
I was about to give up but then managed to reproduce that behavior. Here, I had to exit Rhino and start it again to get it to display correctly again.

I tested the same workflow on Rhino 7 and this appears to have been fixed somewhere along the road. There won’t be any updates on Rhino 6 (all development and most bug fixing is only done in Rhino 8 at this point), so I’m afraid this is going to stay like this in Rhino 6.
-wim