tacslip op• Data kinds: table × matrix × matrix → table
• Call: import fullseye as fs; fs.ledger.mindlin_fit_vector(model: 'dict', pts_px, u_m, n_coarse: 'int' = 51, n_fine: 'int' = 21) -> 'dict' (to call the implementation directly, import tacslip; tacslip.mindlin_fit_vector(model: 'dict', pts_px, u_m, n_coarse: 'int' = 51, n_fine: 'int' = 21) -> 'dict'; from the registry, opsdrive.get("mindlin_fit_vector"))
Mindlin fit for directional shear (the 2-component version of mindlin_fit): reads (c/a, μP, direction φ) at once.
> The detailed description below is the original text — the summary and the headings are translated.
比例載荷では接線トラクションは同じ半径分布 × 方向ベクトルなので、場は u(p) = A·F_x(p; c) + B·F_y(p; c)(F_y は x 向きの単位場 F_x を 90° 回した場 R(90°)F_x(R(−90°)p)、核は等方な半空間なので回転で閉じる)—— 各 c/a で (A, B) は線形の最小二乗。μP = √(A² + B²)、φ = atan2(B, A)、Q = μP(1 − (c/a)³)。c/a は粗く走査 → 最良の周りを細かく。向きを先に「固着核の平均変位」で決めて 1 成分の mindlin_fit に回す版は、規則格子の位相で核の標本が非対称になり 0.5° 前後の偏り(純 v のせん断に 0.01 N の偽の u 成分)を出した(pegtactile の試作で測って捨てた)。返り c_over_a・q_ratio・muP・Q・phi・rms_m。Raises ValueError: 形の不一致、点が 3 個未満。
• 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.
• (none yet)
table as input)course_layout · course_occupancy · course_contains · world_build · world_camera · world_move · lidar_scan · rss_longitudinal_same
tacslip)mindlin_partial_slip · mindlin_traction · hertz_surface_ur · hertzian_tangential_inner · cerruti_kernel · cerruti_surface_displacement · membrane_shear_field · membrane_markers
*Provenance: tacslip.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.