### Checklist - [x] I have searched for [similar issues](https://github.com/isl-org/Open3D/issues). - [x] For Python issues, I have tested with the [latest development wheel](https://www.open3d.org/docs/latest/getting_started.html#development-version-pip). - [x] I have checked the [release documentation](https://www.open3d.org/docs/release/) and the [latest documentation](https://www.open3d.org/docs/latest/) (for `main` branch). ### My Question <img width="1484" height="782" alt="Image" src="https://github.com/user-attachments/assets/5fe2bdd2-cf4c-4234-8af2-d637f3c64dd3" /> 我想对齐点云在xy平面,有什么好方法吗