surface op• 資料種類:無 → voxel(僅由參數決定的運算子 —— 不接受影像或資料輸入)
• 呼叫: import fullseye as fs; fs.ledger.gyroid_solid_mask(shape=(64, 64, 64), level=0.0, periods=1.0, thickness=0.3)(要直接呼叫實作,import render3d; render3d.gyroid_solid_mask(shape=(64, 64, 64), level=0.0, periods=1.0, thickness=0.3);從台帳取用則 ops3d.get("gyroid_solid_mask"))
作為可列印實體的 gyroid —— 等值面 ±*thickness* 之內的殼。
> 以下的詳細說明為原文 —— 摘要與標題已翻譯。
Returns a `volume` (float 0/1), so it feeds the existing voxel ops
(`vol_label / skeletonize_vol / mesh_slice_stack`) directly and needs
no marching cubes —— this form works on bare numpy, while
:func:gyroid_isosurface needs scikit-image.
★Why this earns its place: at `level = 0` the field is odd under the
body-centred inversion, so the solid fraction of the two sides is *exactly*
equal —— a symmetry fact the mask can be checked against (the measured
fraction above 0 converges on 0.5 as the grid refines), and the shell volume
grows linearly in *thickness* for small *thickness* because the level set has
finite area. Both are independent of how the field was sampled.
Raises `ValueError`: a grid below 8 per axis or over the cap;
non-positive periods; a non-finite level; a negative thickness.
• 範例資料目錄(下載 URL / 授權) —— 2-D 用 skimage.data(BSD/公有領域)加合成圖,3-D 給出真實資料源(Stanford/PDS 等)的下載 URL。
• 運算子來歷與參考文獻 —— 該運算子族所依據的研究/方法出處。
• minimal_surfaces — py -3.11 examples_3d/minimal_surfaces.py
voxel 作為輸入)voxel_to_mips · voxel_to_mesh · signed_distance_field · to_points · sobel3d · hessian3d · curvature_maps · edt_jfa
surface)minimal_surface · minimal_surface_bend · gyroid_isosurface · curve3d_tube_mesh
*Provenance: render3d.py — 3D 運算子登記表。本條目由 tools/opdocs.py md 自動產生(請勿手動編輯)。*
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.