Riken-UCSB-Basel collaboration extracts full 3D-confinement parameters and in-plane orientation of the single-electron quantum orbitals of a GaAs gate-defined dot with sub-nm precision. This is a versatile tool for quantum dots with one dominant axis of strong confinement. Camenzind, Yu et al., Phys. Rev. Lett. 122, 207701 (May 22, 2019). Editors' Suggestion and featured with viewpoint in Physics. See also UniNews.