swarmflow op• Data kinds: signal × signal × any → table
• Call: import fullseye as fs; fs.ledger.potential_flow_cylinder(x, y, cylinder, speed: 'float' = 1.0, grid: 'bool' = False) -> 'dict' (to call the implementation directly, import swarmflow; swarmflow.potential_flow_cylinder(x, y, cylinder, speed: 'float' = 1.0, grid: 'bool' = False) -> 'dict'; from the registry, opsdrive.get("potential_flow_cylinder"))
Potential flow around a cylinder (closed form). u − i v = U (1 − R²/(z − z_c)²); NaN inside the circle.
> The detailed description below is the original text — the summary and the headings are translated.
grid=True なら x・y を格子の軸(1 次元、行 = y の順)とみなし、速度場の dict(module の規約)を返す。既定の grid=False は要素ごと(同じ形に broadcast)に u・v・inside を返す —— 軸か点の列かを形で推し量らない(同じ長さの 1 次元の x と y はどちらにも読めて、点の列が黙って格子になる)。どちらにも stagnation(上流の衝突点(x_c − R, y_c))と rear_stagnation と surface_speed_max(= 2U)を付ける。
• 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_swarm_obstacle_from_flow — py -3.11 examples/poc_swarm_obstacle_from_flow.py
table as input)course_layout · course_occupancy · course_contains · world_build · world_camera · world_move · lidar_scan · rss_longitudinal_same
swarmflow)sph_kernel · sph_density_pressure · swarm_simulate · swarm_render_overhead · swarm_field_from_tracks · swarm_field_from_piv · velocity_deficit_map · stagnation_from_centerline
*Provenance: swarmflow.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.