pegtactile op• Data kinds: table → table
• Call: import fullseye as fs; fs.ledger.pad_context(pad: 'dict', jitter_px: 'float' = 0.5, seed: 'int' = 7) -> 'dict' (to call the implementation directly, import pegtactile; pegtactile.pad_context(pad: 'dict', jitter_px: 'float' = 0.5, seed: 'int' = 7) -> 'dict'; from the registry, opsdrive.get("pad_context"))
Tools built just 1 time for membrane synthesis and reading: grid of pixel centers (X, Y), Cerruti kernel, 3-color lights, background of the unloaded membrane, and the marker reference image.
The markers' phase is scattered by uniform jitter of jitter_px (about the level of printing variation). On a regular grid (0 px) all markers share the same sub-pixel phase, so centroid pixel-locking becomes a common mode across the whole field and produces false shear even at zero shear (in the PoC gate, 11 mN → 0.9 mN). seed is the random seed for the jitter. The returned _model_cache and _sr_cache are internal caches for the read. Raises ValueError: jitter < 0.
• 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.
• gallery_drive_soil_tactile — py -3.11 examples/gallery_drive_soil_tactile.py
• poc_knife_tactile_toughness — py -3.11 examples/poc_knife_tactile_toughness.py
• poc_peg_insertion_tactile — py -3.11 examples/poc_peg_insertion_tactile.py
• poc_tactile_dipole_torque — py -3.11 examples/poc_tactile_dipole_torque.py
table as input)course_layout · course_occupancy · course_contains · world_build · world_camera · world_move · lidar_scan · rss_longitudinal_same
pegtactile)pad_params · peg_wrench_to_pad_loads · pad_loads_to_peg_wrench · pad_shear_asymmetry · pad_marker_displacement · pad_tactile_frame · pad_tactile_read · contact_candidates
*Provenance: pegtactile.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.