tacsim op• Data kinds: matrix × scalar × scalar × scalar → matrix
• Call: import fullseye as fs; fs.ledger.hertz_surface_uz(r, a: 'float', delta: 'float', R: 'float') -> 'np.ndarray' (to call the implementation directly, import tacsim; tacsim.hertz_surface_uz(r, a: 'float', delta: 'float', R: 'float') -> 'np.ndarray'; from the registry, opsdrive.get("hertz_surface_uz"))
Normal displacement ū_z(r) of the half-space surface in Hertz sphere contact (sinking amount ≥ 0, array of the same shape as r).
> The detailed description below is the original text — the summary and the headings are translated.
内側 r ≤ a: δ − r²/(2R)。外側: (1/πR)[(2a² − r²) arcsin(a/r) + a r √(1 − a²/r²)] (Johnson 式 3.42a)。r = a で δ/2 に連続。Raises ValueError: a, δ, R ≤ 0、a² と Rδ が 1 % 以上食い違う(Hertz でない組)。
• Sample-data catalog (download URLs / licences) — 2-D uses skimage.data (BSD/public domain) plus synthetic images; 3-D lists download URLs for real data sources (Stanford, PDS, …).
• Operator provenance and references — the sources of the research/methods this op family came from.
• The canonical algorithm (author, year) and its uses are named in the family usage guide above.
• poc_tacsim_elastic_membrane — py -3.11 examples/poc_tacsim_elastic_membrane.py
• poc_tactile_dipole_torque — py -3.11 examples/poc_tactile_dipole_torque.py
matrix as input)world_camera · lidar_scan · relative_motion · foe_from_motion · flow_from_depth_motion · ttc_truth · world_materials · mesh_signed_volume
tacsim)combined_modulus · hertz_sphere · hertz_force · hertz_cylinder · hertz_pressure · membrane_indent_sphere · membrane_indent_shape · membrane_lights
*Provenance: tacsim.py — DRIVE operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.