Why is rhino 7 happened this event, please help

Hi - I’m afraid I don’t know what I am supposed to be looking at in that video.
Can you describe the problem that you are having?
Also, please run the Rhino SystemInfo command and copy-paste the result here.

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This looks like you’re in Top view and your camera is rotated 90°.

Usually the X axis (red) goes to the right.

With nothing selected, go to viewport properties / Camera and change that 90 to 0

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Rhino 7 SR1 2020-10-25 (Rhino 7, 7.1.20299.23101, Git hash:master @ 8d9ce31398d29589acec390d2167dc68806d5b79)
License type: Commercia, build 2020-10-25
License details: Stand-Alone

Windows 10.0 SR0.0 or greater (Physical RAM: 12Gb)

Non-hybrid graphics.
Primary display and OpenGL: NVIDIA GeForce GTX 1660 (NVidia) Memory: 6GB, Driver date: 7-24-2019 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 432.00

Secondary graphics devices.
Intel® HD Graphics 4600 (Intel) Memory: 1GB, Driver date: 9-29-2016 (M-D-Y).

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: Height

Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 7-24-2019
Driver Version:
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 6 GB

Rhino plugins that do not ship with Rhino

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 7\Plug-ins\SolidTools.rhp “SolidTools”
C:\Program Files\Rhino 7\Plug-ins\Commands.rhp “Commands” 7.1.20299.23101
C:\Program Files\Rhino 7\Plug-ins\WebBrowser.rhp “WebBrowser”
C:\Program Files\Rhino 7\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 7\Plug-ins\RhinoScript.rhp “RhinoScript”
C:\Program Files\Rhino 7\Plug-ins\RPC.rhp “RPC”
C:\Program Files\Rhino 7\Plug-ins\IdleProcessor.rhp “IdleProcessor”
C:\Program Files\Rhino 7\Plug-ins\export_AI.rhp “Adobe Illustrator Export”
C:\Program Files\Rhino 7\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 7.1.20299.23101
C:\Program Files\Rhino 7\Plug-ins\RhinoRender.rhp “Legacy Rhino Render”
C:\Program Files\Rhino 7\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 7.1.20299.23101
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\Alerter.rhp “Alerter”
C:\Program Files\Rhino 7\Plug-ins\RhinoCycles.rhp “RhinoCycles” 7.1.20299.23101
C:\Program Files\Rhino 7\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 7.1.20299.23101
C:\Program Files\Rhino 7\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 7\Plug-ins\Displacement.rhp “Displacement”
C:\Program Files\Rhino 7\Plug-ins\RhinoLabsTools.rhp “Rhino Labs Tools”
C:\Program Files\Rhino 7\Plug-ins\import_ACAD.rhp “AutoCAD file import: import_ACAD”
C:\Program Files\Rhino 7\Plug-ins\MPlane.rhp “MPlane”

Hi @noithatchiaki
It’s a little hard to follow your video with no wording attached, but I think I might see what it is that confuses you: When you use SetCplaneToObject, the X and Y axis are aligned according to the U and V direction of your surface - which in this case seem to be rotated 90° in relation to the XY of your viewport. If you want to switch the two (the U and V, that is) around, use the Dir command and use SwapUV.
HTH, Jakob