tree op• 데이터 종류: table → table
• 호출: import fullseye as fs; fs.ledger.tree_sholl(tree, radii=None, n_radii=50, plane=None, center=None)(구현을 직접 호출하려면 import treemorph; treemorph.tree_sholl(tree, radii=None, n_radii=50, plane=None, center=None), 원장에서 가져오려면 opsgraph.get("tree_sholl"))
> 이 연산자의 설명은 아직 번역이 없습니다. 원문을 그대로 싣습니다.
Sholl analysis: segments crossing spheres (3-D) or circles (a projection) around the root.
radii are the shell radii (ascending, positive); if omitted, n_radii shells at the mid-points of equal steps up to the largest distance from the centre (never exactly on a node's distance). A shell passing exactly through a node is ambiguous under rounding — a rotation may move that node by one ulp to either side. plane=None measures in 3-D; plane="xy" | "xz" | "yz" drops the third axis first — what a single image sees. center defaults to the root position.
A segment (parent-child) crosses radius r when its end points lie strictly on opposite sides of r (the endpoint rule). Returns radii, crossings (int array), max_crossings, radius_at_max and integral — the exact area under the whole continuous Sholl curve, computed from the segments' intervals (independent of where the shells are placed).
Identities: in 3-D the crossings are invariant, integer for integer, under any rotation about the centre; and integral equals sum |d_child - d_parent| (the tests also check that the mid-point sum of the sampled crossings converges to it — a second implementation).
Raises ValueError: not a tree table; plane not one of None/xy/xz/yz; radii not 1-D, not finite, not positive or not strictly increasing; n_radii < 1.
• 샘플 데이터 카탈로그(DL URL / 라이선스) —— 2-D 는 skimage.data(BSD/public)+ 합성, 3-D 는 실데이터 소스(Stanford/PDS 등)의 DL URL.
• 연산자의 내력·참고문헌 —— 이 연산자 족의 바탕이 된 연구/기법의 출처.
• 알고리즘의 정전(저자·연도)과 용도는 위의 패밀리 사용 가이드에 적혀 있습니다.
• poc_swc_tree_truth — py -3.11 examples/poc_swc_tree_truth.py
• poc_worm_neurites_grow — py -3.11 examples/poc_worm_neurites_grow.py
table 를 입력으로 받는 것)graph_edge_consensus · graph_core_persistence · tree_morphometry · tree_run_length
tree)tree_from_swc · tree_morphometry · tree_run_length
*Provenance: treemorph.py — GRAPH 연산자 레지스트리. 이 op 노트는 tools/opdocs.py md 가 자동 생성합니다(직접 편집하지 마세요).*
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.