jqhdZddlmZddlZddlmZddlmZejgdZ dZ d Z y) z[ comparison.py ---------------- Provide methods for quickly hashing and comparing meshes. )sha256N)util)tol) rr rc|jj|j5tjdtj}|j }||d<|t jkrd}|j|d<|jr|dz dz|jdzz |d <n |j}|j }|j}||z |d <|d kDr|dz dz|dzz |d <|j|jz }tj|d zgd j!}||z |d<dddt#|j$dkDr|j&}|j)|j+z } | dkDr||j,j/d} tj0tj2| | dddffd} tj4| j7d} | j/d| tj8t#| d zz} tj:| j=d<S#t$rd}d}YwxYw#1swY=xYw)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 ?/DATA/.local/lib/python3.12/site-packages/trimesh/comparison.pyidentifier_simpler?s@$ KK XXarzz2 II " 1 syy I)) 1  >>(#o9= *JqM  "'' II "kk & 1JqMU""+c/y!AI.! 1 }}t}}4H1y1557BNJqM_ j 4::// ##% (9(9(;; d? !:!:;CCGLEGGBOOUE!Q$K,@AJEvve}+++3H==$X3x=1IA1M%NODGGDHHJ/JqM K! " !  "A s1BI2+$IA(I2 I/+I2.I//I22I<cFtj|t\}}|dkjr&|t j |j z }|d|zzjtj}t|jjS)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 QbffZ^^-.. b*n % - -bhh 7D $,,. ! + + --) __doc__hashlibrnumpyrr constantsrarrayrBr?rLrMr>rUs; BHH  \~.rM