granular op• Data kinds: matrix × scalar × scalar × scalar × scalar → image2d
• Call: import fullseye as fs; fs.ledger.spheres_to_silhouette(pos, radius: 'float', pitch: 'float', extent: 'float', height: 'float', supersample: 'int' = 4) -> 'np.ndarray' (to call the implementation directly, import granular; granular.spheres_to_silhouette(pos, radius: 'float', pitch: 'float', extent: 'float', height: 'float', supersample: 'int' = 4) -> 'np.ndarray'; from the registry, opsdrive.get("spheres_to_silhouette"))
Orthographic coverage image seen from the side (y direction), from the sphere centers (union of disks, anti-aliased). Row 0 is at the top.
• 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_granular_heap_repose — py -3.11 examples/poc_granular_heap_repose.py
• poc_powder_scoop_pour — py -3.11 examples/poc_powder_scoop_pour.py
image2d as input)flow_from_depth_motion · ttc_truth · ttc_from_flow · foe_from_flow · perlin2 · fbm_height · fbm_gradient · radial_periodogram
granular)heap_volume_cone · heap_mass · heap_volume_heightmap · beverloo_rate · beverloo_fit · discharge_synth · dispense_mass_from_video · hopper_discharge_rate
*Provenance: granular.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.