l0jqfdZddlmZddlZddlmZddlmZej gdZ dZ d Z dS) z[ comparison.py ---------------- Provide methods for quickly hashing and comparing meshes. )sha256N)util)tol) rr rc|j|j5tjdtj}|j}||d<|t jkrd}|j|d<|j r|dz dz|j dzz |d <n |j }|j}|j }n#t$rd}d}YnwxYw||z |d <|d kr|dz dz|dzz |d <|j |jz }tj|d zgd }||z |d<dddn #1swxYwYt#|jdkr|j}||z } | dkr||jd} tjtj| | dddffd} tj| d} | d| tjt#| d zz} tj| |d<|S)ah Return a basic identifier for a mesh consisting of properties that have been hand tuned to be somewhat robust to rigid transformations and different tessellations. Parameters ------------ mesh : trimesh.Trimesh Source geometry Returns ---------- identifier : (7,) float Identifying values of the mesh )dtyperg?rg@g?gUUUUUU?r r g-q=)rrrrN2g?)r )axisr)_cacheverifynpzerosfloat64arearmerge euler_number is_volumevolume convex_hull BaseExceptionverticescentroiddotmaxlenfacesedges_unique_lengthstdmeanedges_unique_inversereshapediff column_stackabsargminarangesignsum)mesh identifier mesh_areahull hull_area hull_volumerR2 edges_lengthvariancenormsstackpick_idxpicks U/home/wildlama/miniconda3/envs/lam/lib/python3.11/site-packages/trimesh/comparison.pyidentifier_simpler?s$ K /+/+Xarz222 I " 1 sy I) 1  > +(#o9= *JqMM  "' I "k   " " " !  " & 1JqMU"""+c/y!AI.! 1 }t}4H1yyy115577BNJqM_/+/+/+/+/+/+/+/+/+/+/+/+/+/+/+j 4:/ ##%% (9(9(;(;; d?? !:;CCGLLEGBOUE!!!Q$K,@AAJJJEve}}+++33H==$$X3x==1I1IA1M%NODGDHHJJ//JqM s7A'D! BD!B0-D!/B00A%D!!D%(D%cntj|t\}}|dkr)|t j|z }|d|zztj}t|  S)a5 Hash an identifier array in a way that is hand-tuned to be somewhat robust to likely changes. Parameters ------------ identifier : (n,) float Vector of properties Returns ---------- hash : (64,) str A SHA256 of the identifier vector at hand-tuned precision. rr) r sigfig_int id_sigfiganyrr,minastypeint64rtobytes hexdigest)r2as_int multiplierdatas r>identifier_hashrL}s"Y??FJ Q/bfZ^^--... b*n % - -bh 7 7D $,,.. ! ! + + - --) __doc__hashlibrnumpyrr constantsrarrayrBr?rLrMr>rUs BH   \\\~.....rM