h`ddlmZddlmZmZddlZddlZddlZddlZddl Z ddl Z ddl m Z m Z mZddlmZmZmZddlmZGddeZGd d eZd%d Zd&d Zd'd Zd%dZd&dZd(dZd)dZd*dZdddZ d+dZ!d*dZ"d*dZ#d*dZ$d+dZ%d,dZ&d-dZ'Gdde jPZ)GddZ*e)jVfd d!d" d.d#Z,e)jVfd d!d" d/d$Z-y)0) annotations)UnionSequenceN)Vec3normal_vector_3p BoundingBox)MeshTransformerMeshVertexMerger MeshBuilder) __version__c eZdZy)UnsupportedFileFormatN__name__ __module__ __qualname__3lib/python3.12/site-packages/ezdxf/addons/meshex.pyrrrrc eZdZy) ParsingErrorNrrrrrrrrrct|d5}|j}dddjdr|jdd}t |St |S#1swYCxYw)zRead ascii or binary `STL`_ file content as :class:`ezdxf.render.MeshTransformer` instance. Raises: ParsingError: vertex parsing error or invalid/corrupt data rbNssolidasciiignore)errors)openread startswithdecode stl_loads stl_loadb)filenamefpbufferss r stl_readfiler(s^ h   " MM'(M 3|   s A  A)cd d}t}g}t|jddD]\}}|jd}|j dr |j ||A|j d sSt|d k(r|j||jtj|S#t tf$rtd|d|wxYw) zLoad a mesh from an ascii `STL`_ content string as :class:`ezdxf.render.MeshTransformer` instance. Raises: ParsingError: vertex parsing error c|j}tt|dt|dt|dS)Nsplitrfloat)linedatas r parse_vertexzstl_loads..parse_vertex5s4zz|E$q'NE$q'NE$q'NCCr r+start vertexzSTL parsing error in line : endloopr-)r1strreturnr)r enumerater/stripr append IndexError ValueErrorrlenadd_faceclearr from_builder)contentr3meshfacenumr1s rr"r"*sD  DDw}}T2!< Tzz%  ??8 $ O L./__Y '4yA~ d# JJL=  ' ' --  + O"%?uBtf#MNN Os C!C'cd}tjd||d}|dz }t}t|D]]} tjd||}|dz }t |dd }t |d d }t |d d }|j|||f_tj|S#tj$r t dwxYw) zLoad a mesh from a binary `STL`_ data :class:`ezdxf.render.MeshTransformer` instance. Raises: ParsingError: invalid/corrupt data or not a binary STL file Pr r?rBrintrArr0r@verticesrUfacestuplerDr rE)rFrGlinesr1n n_verticesrXr8vvtxrW face_indicesrHf vertex_counts rraraqs  DE d#zz'" ??3 45=DBJ  T $ 5zQ>@@ Qx5!8AB<a aAD!!A$iQqTG  5zJ((IKKJN+ LLN MuQqT{E!A$Kqt=C S! , NELeego. JJL Iqt9L<(E ##C!e) $56) % -./  ' ' --? D7azBCCDJ' M!B6(KL L M I!@GH H I  + ";D6B s0-G<1H2H; I<HH8;II4ct|ddd5}|j}dddt|S#1swYtSxYw)zRead `OBJ`_ file content as list of :class:`ezdxf.render.MeshTransformer` instances. Raises: ParsingError: vertex or face parsing error r^rrr_N)rr obj_loadsrbs r obj_readfilerxrdrec rdd}dd}tgg}t}t|jddD]\}}|j d}|j dr ||dd }j|F|j d r% |jfd ||dd D||j dst|jdkDs|jtj|t}t|jdkDr$|jtj||S#t tf$rtd |d |wxYw#t$rtd|d |t $rtdtd|d |wxYw)zLoad one or more meshes from an `OBJ`_ content string as list of :class:`ezdxf.render.MeshTransformer` instances. Raises: ParsingError: vertex parsing error c|j}tt|dt|dt|dS)Nrr+r,r.)lrqs rr3zobj_loads..parse_vertexs4 GGIE!A$KqteAaDk::rcBtd|jDS)Nc3VK|]!}t|jdd#yw)/rN)rjr/).0r's r z0obj_loads..parse_face..s"=9aSa)9s'))rmr/)r{s r parse_facezobj_loads..parse_faces=1779===rr4r+r5r7rqr,Nz!OBJ vertex parsing error in line r9rtc3(K|] }| ywNr)rirks rrzobj_loads..sH3Gahqk3GszOBJ face parsing error in line zOBJ face index error (n=z ) in line gr)r{r;r<r)r{r;r<z Sequence[int])rr r=r/r>r r@rArr?rCrBrkr rE) rFr3rmeshesrGrIr1rrrks @rrwrws;>!F8H$&F  Dw}}T2!< Tzz%  ??3  "48, OOC __S !  H:d12h3GHH__S !c$--&81&< MM/66t< =#%D1=4 4==A o22489 M/ + "7uBtfE  "5cU"TFC ".s8}oZuBtfU s& E#E6!E36AF6c jdtg}|jdD]}t|dkr t|d|d|d}|j d}|j d|jd |jd |j|j d |D]:}|j d |jd |jd |j<|j d |j d |j ddj|S#t$rYwxYw)aReturns the `STL`_ data as string for the given `mesh`. This function triangulates the meshes automatically because the `STL`_ format supports only triangles as faces. This function does not check if the mesh obey the `STL`_ format `rules `_: - The direction of the face normal is outward. - The face vertices are listed in counter-clockwise order when looking at the object from the outside (right-hand rule). - Each triangle must share two vertices with each of its adjacent triangles. - The object represented must be located in the all-positive octant (non-negative and nonzero). zsolid STL generated by ezdxf r-max_vertex_countrr+r,z facet normal  z outer loopz vertex z endloopz endfacetz endsolid r4) r tessellationrBrZeroDivisionErrorroundr?xyzjoin)rGrnrHrorqs r stl_dumpsrs 8 }EFE!!1!5 t9q=   a$q'47;A GGAJ qsse1QSSE133%89 %&A LL=Qqsse1QSSE: ; ]# \"6 LL 99U !   sD%% D21D2scSTL generated ezdxf rKctdg}d}|jdD]} t|d|d|d}|dz }t |j }|D]}|j |j |jd|jtjdg|tjd||d<d j|S#t$rYwxYw) z|Returns the `STL`_ binary data as bytes for the given `mesh`. For more information see function: :func:`stl_dumps` s0000rr-rr+r,rNrLr) STL_SIGNATURErrrlistxyzextendr?rSpackr)rGr2countrHrovaluesrqs r stl_dumpbrs '0D E!!1!5  a$q'47;A  aeeA MM!%%  a FKK1&126kk$&DG 88D>!   sC C! C!c dt|jdt|jdg}|jD]J}|jd}|j |j d|j d|jL|jD]7}|j t|ddjd|D9|dxxdz cc<dj|S)zlReturns the `OFF`_ data as string for the given `mesh`. The `OFF`_ format supports ngons as faces. rhrz 0rPc32K|]}t|ywrr;rrs rrzoff_dumps..6s,BTSVTr4) rBrkrlrr?rrr open_facesrrGrnrqrHs r off_dumpsr,s #dmm"4!5Qs4::6GrJKE ]] GGAJ uAaccU!ACC5)*! D {!CHH,BT,B$B#CDE" "II 99U rc dtg}|jD]K}|jd}|jd|jd|j d|j M|jD],}|jddjd|Dz.|dxxdz cc<dj|S) zlReturns the `OBJ`_ data as string for the given `mesh`. The `OBJ`_ format supports ngons as faces. z# OBJ generated by ezdxf rPzv rzf c38K|]}t|dzywr+Nrrs rrzobj_dumps..Fs$>ASQZrr4) r rkrr?rrrrrrs r obj_dumpsr;s 4K=ABE ]] GGAJ r!##auAaccU+,! TCHH$>$>>>?" "II 99U rc dg}|jD]L}|jd}|jd|jd|jd|j dN|jd|j D]/}|jddjd|Dzdz1|jdd j|S) atReturns the `OpenSCAD`_ `polyhedron`_ definition as string for the given `mesh`. `OpenSCAD`_ supports ngons as faces. .. Important:: `OpenSCAD`_ requires the face normals pointing inwards, the method :meth:`~ezdxf.render.MeshBuilder.flip_normals` of the :class:`~ezdxf.render.MeshBuilder` class can flip the normals inplace. zpolyhedron(points = [rPz [z, z],z ], faces = [c32K|]}t|ywrrrs rrzscad_dumps.._s&.js ,A3q6C<rs"property list int int vertex_indexz JJ  . *[-?-?-A A S%7!8!?!?!A A    s3tzz?3::< <    F D-- FKKvxx688DE !D ooe$ FKKU2T23" 88D>rcPttjjSr)_guid_compressuuiduuid4hexrrrifc_guidrs $**,** ++rc Bdtdt|dDcgc]}t|||dzd}}d d fd }dj||ddgtdddDcgc]%}|||dz||dzd zz||dzz'c}zScc}wcc}w) Nz@0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_$rr,c djt|Dcgc]}|d|zzdzc}dddScc}w)Nri@r)rrU)rqsizercharss rb64z_guid_compress..b64sHww16t =AUA"a%LB& ' =dd C  =s<rir+r-r)rM)rqrjrrj)rUrBrjr)rrbsrrs @rrrs NE).q#a&!)< =) s B$*B ceZdZdZdZdZy) IfcEntityType POLY_FACE_SET CLOSED_SHELL OPEN_SHELLN)rrrPOLYGON_FACE_SETrrrrrrrs&!LJrrczeZdZd dZed dZed dZed dZdddZdZ ddZ ddZ dd Z dd Z y )Recordscg|_yrrecordsselfs r__init__zRecords.__init__s #% rc,t|jSr)rBrrs rlast_numzRecords.last_nums4<<  rc |jdz SNr+rrs rprev_numzRecords.prev_num}}q  rc |jdzSrrrs rnext_numzRecords.next_numrrc|jdsJd|jj||dk7r#|t|jk7r t dt|j}d|S)N);zinvalid structurerzunexpected record numberrg)endswithrr?rBrA)rrecordrIs raddz Records.addsit$9&99$ F# !8s4<<0078 8$,,3%yrc:|jjdy)Nri)rr?rs r add_dummyzRecords.add_dummys Brc&|j|dz Srr)rrIs rgetz Records.gets||C!G$$rcnt|jD]\}}||vs |j|||yr)r=r update_record)rtag record_numrWrs r update_allzRecords.update_alls2&t||4ME6f}""5#z:5rc\|j|j|||j|<yr)rreplace)rrWrrs rrzRecords.update_records&"ll5199#zJ UrcXdjdt|jDS)Nr4c3>K|]\}}|s d|dzd|yw)rgr+z= Nr)rrIr2s rrz Records.dumps..s, 1HICDaAwb 1Hs )rr=rrs rdumpsz Records.dumpss)yy 1:4<<1H   rN)r<None)r<rj)r)rr;rIrjr<r;)rIrjr<r;)rr;rr;r<r;)rrrrpropertyrrrrrrrrrrrrrrsb% !!!!!! %; K rr MeshExport)?rrlayercolorcZ d}d  fd }d fd d fd tjdk(rytj}t |jJ|jj dks2|jj dks|jjdkrU|j tjj j j j |}|}||jzdzS) a/Returns the `IFC4`_ string for the given `mesh`. The caller is responsible for checking if the mesh is a closed or open surface (e.g. :code:`mesh.diagnose().euler_characteristic == 2`) and using the appropriate entity type. Args: mesh: :class:`~ezdxf.render.MeshBuilder` entity_type: :class:`IfcEntityType` layer: layer name as string color: entity color as RGB tuple, values in the range [0,1] .. warning:: `IFC4`_ is a very complex data format and this is a minimal effort exporter, so the exported data may not be importable by all CAD applications. 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