jUdZddlZddlmZddlmZddlmZddl m Z m Z m Z m Z mZ ddlmZmZ dd ed e d efd Z dd ed e d efd Z dd ed e d efdZ dd ede d efdZiZe ee fed<eeereed<need<ej:j<rej:j>ed<nee ded<e!dejEDee ded<ejGDchc]\}}e|er|c}}Z$y#e$rZeeZeeZYdZ[ dZ[wwxYwcc}}w)z] boolean.py ------------- Do boolean operations on meshes using either Blender or Manifold. N) interfaces)ExceptionWrapper)reduce_cascade)BooleanEngineTypeBooleanOperationTypeCallableDictSequence)ManifoldMeshmeshesengine check_volumec &t||fd|d|S)a/ Compute the boolean difference between a mesh an n other meshes. Parameters ---------- meshes : sequence of trimesh.Trimesh Meshes to be processed. engine Which backend to use, i.e. 'blender' or 'manifold' check_volume Raise an error if not all meshes are watertight positive volumes. Advanced users may want to ignore this check as it is expensive. kwargs Passed through to the `engine`. Returns ---------- difference A `Trimesh` that contains `meshes[0] - meshes[1:]` difference operationr_enginesrrrkwargss z#boolean_manifold..sz"boolean_manifold..s!a%rNrc ||zSr!r,r-s rr0z"boolean_manifold..a!errc ||z Sr!r,r-s rr0z"boolean_manifold..r2rzInvalid boolean operation: '')TrimeshF)verticesfacesprocess)all ValueErrorr r nparrayr6float32r7uint32lenrr5to_meshr'r() rrrrr) manifoldsresult_manifoldunionedr5 result_meshs rboolean_manifoldrFwsc,Cr_s(%TT#)!%  F!%  D!%  F> >#>>D!#$sH} " h()#HZ,HZ$,,44HY+;7S+TUHYI!IWX..""$!Q*Q8H*IA"C# A D"H#Bs#D EE E%D;;E