tacsim op• Data kinds: text × scalar → table
• Call: import fullseye as fs; fs.ledger.membrane_indent_shape(shape: 'str', depth: 'float', n: 'int' = 128, fov: 'float' = 0.006, R: 'float' = 0.003, edge_deg: 'float' = 30.0, tip_radius: 'float' = 0.0003, size: 'float' = 0.002) -> 'dict' (to call the implementation directly, import tacsim; tacsim.membrane_indent_shape(shape: 'str', depth: 'float', n: 'int' = 128, fov: 'float' = 0.006, R: 'float' = 0.003, edge_deg: 'float' = 30.0, tip_radius: 'float' = 0.0003, size: 'float' = 0.002) -> 'dict'; from the registry, opsdrive.get("membrane_indent_shape"))
Builds the height field of a gel membrane into which a rigid body of known shape is pressed by depth, by geometric conformance: h = −max(0, depth − z_ind(x, y)).
> The detailed description below is the original text — the summary and the headings are translated.
弾性の裾(Hertz の外側解)は入れない —— 球は membrane_indent_sphere が Hertz で正確に作るので、こちらは円柱・直線エッジ・スタンプのように閉形式の裾が無い形を同じ流儀で並べるための道具。shape:
"sphere"(半径 R の球冠 z = R − √(R² − r²))、"cylinder"(軸は y、z = R − √(R² − x²))、"edge"(直線エッジ:
先端半径 tip_radius で丸めた角 edge_deg のくさび z = (√(x² + ρ²) − ρ) tan α)、"stamp"(一辺 size の "F" 字の平らなスタンプ、外側は距離 × tan 60° で立ち上がる)。法線は photometric.surface_normals(h/pitch)で取る(第 2 実装)。
返り: h・normals・pitch・X・Y・contact(z_ind < depth)・z_ind。Raises ValueError: 未知の shape、depth ≤ 0、球・円柱で depth ≥ R。
• 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
table as input)course_layout · course_occupancy · course_contains · world_build · world_camera · world_move · lidar_scan · rss_longitudinal_same
tacsim)combined_modulus · hertz_sphere · hertz_force · hertz_cylinder · hertz_surface_uz · hertz_pressure · membrane_indent_sphere · 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.