基于参数化技术的cad系统的二次开发(液压系统的开发)

A1A0A2A3A4A5A6A7CADA9A8A7A10A11A12A13A15A16A14A9A8A7A12A13A18I毕业设计（论文）任务书专业班级姓名A17A19A20A21A22A23A24A25A26A27A28A29A30A31A32A26A27A30A31A33A34A35A36A37A32A38A39A40A41A36A37A38A39A40A41A40A41A42A42A43A44A36A37A32A40A41A36A37A45A46A19A47A48A49A50A51A52A24A53A54A55A56A57A58A59A60A61A62A63A64A65A66A67A68A69A70A71A72A73A64A74A75A76A77A78A71A72A64A79A80A81A82A83A84A74A75A55A56A85A58A86A87A88A89A68A64A90A91A92A93A69A70A94A95A76A92A93A96A97A98A99A74A75A100A101A69A70A74A75A102A103A76A71A72A64A81A82A104A92A93A105A106A79A80A107A108A109A76A77A78A92A110A73A64A111A103A83A58A112A74A75A56A113A92A93A96A97A114A47A115A89A68A87A116A117A118A86A87A88A89A68A119A69A70A120A121A122A123A121A83A124A54A105A106A125A126A99A74A75A76A127A128A129A58A130A131A132A133A134A68A64A74A75A129A69A135A136A64A120A95A76A58A112A86A87A88A89A68A64A137A138A104A129A139A140A141A17A142A143A64A144A145A76A146A147A104A129A148A149A17A150A75A151A132A152A153A74A75A119A154A155A137A138A64A156A157A158A159A160A116A161A162A163A159A160A164A165A100A102A166A91A156A157A167A168A92A110A73A58A169A170A156A157A88A86A163A171A172A54A47A48A55A56A173A174A59A60A67A68A64A71A72A73A74A75A24A175A53A54A65A66A176A122A177A178A179A175A124A54A65A66A96A180A108A109A181A122A115A182A108A109A181A179A175A172A54A183A184A122A59A60A184A179A175A185A54A186A187A188A122A189A190A67A188A68A191A83A192A19A102A103A193A194A122A48A195A24A84A20A21A196A197A64A102A103A198A64A47A48A199A200A141A201A202A102A203A74A75A100A101A64A204A205A206A207A76A144A208A189A74A75A209A210A76A94A95A189A74A75A211A113A64A212A213A214A215A91A216A83A114A77A217A102A103A106A203A63A203A218A64A219A220A76A47A221A222A72A223A224A225A138A158A159A160A116A161A162A163A226A227A228A203A218A156A157A76A58A169A170A225A138A88A86A163A156A157A69A70A74A75A83A200A141A55A56A58A17A142A102A203A64A229A230A74A75A76A231A232A24A59A60A67A68A64A233A234A235A236A19A72A237A238A239A19A220A240A219A109A203A218A19A105A106A241A242A64A222A72A243A244A245A246A77A78A74A75A71A72A105A106A72A237A247A68A64A248A249A76A77A78A250A86A87A88A52A251A252A253A63A254A82A255A109A15A198A76A220A0A58A252A253A64A111A103A76A105A106A58A169A170A81A82A71A72A76A221A138A219A220A203A218A76A219A109A182A1A237A71A72A48A195A64A220A240A247A68A196A197A102A103A173A174A24A53A19A59A60A67A68A122A61A62A64A229A230A170A22A74A75A179A172A19A59A60A2A3A67A68A64A71A72A73A74A75A203A218A175A158A159A160A116A161A162A163A226A227A228A54A185A19A59A60A67A68A64A72A237A238A239A74A75A227A19A225A138A241A242A64A222A72A243A244A245A246A107A77A78A59A60A67A68A64A220A240A219A109A228A19A77A78A59A60A61A62A71A72A81A82A19A220A240A72A237A238A239A19A220A240A219A109A64A27A4A231A171A55A56A59A60A61A62A18A5A64A203A218A221A6A235A171A236A7A74A75A8A9A10A17A11A12A13A14A16A17A19A20A21CADA23A24A21A25A26A28A29A30A31A32A23A24A21A28A29A33IIA242A34A35A36A37A38A39A40A34A245A41A42A247A43A44A134A45A122A46A47A48A49A126A50A51A52A250A53A54A55A47A56A53A57A55A58A59A60A60A148A166A61A62A63A245A64A42A65A95A66A67A68A69A70A71A65A59A60A60A254A134A245A59A42A72A73A74A75A90A76A134A95A66A57A55A58A77A202A78A79A80A245A64A42A65A81A82A106A90A69A70A71A65A41A83A83A84A134A245A254A42A85A86A87A74A88A89A134A55A47A56A53A57A55A58A79A91A92A164A245A64A42A134A93A94A67A68A69A70A71A65A41A83A83A83A134A245A148A42A128A96A130A51A97A48A98A99A122A100A101A53A53A74A102A103A104A154A134A55A47A56A53A57A55A58A59A60A60A60A171A105A218A107A245A64A42A65A95A66A67A68A69A70A71A65A59A60A60A60A134A245A108A42A247A109A110A74A111A112A154A134A79A113A114A115A116A117A245A64A42A65A118A119A34A95A66A67A68A69A70A71A65A59A60A60A60A134A245A120A42A121A123A124A65A121A125A65A127A129A131A154A134AUTOLISPA95A66A62A63A171A105A132A113A79A91A245A64A42A134A118A119A133A95A66A67A68A69A70A71A74A59A60A60A108A134A245A135A42A136A137A138A65A139A140A141A65A142A106A143A134AUTOCAD2004A144A145A67A166A146A147A149A150A151A232A152A245A64A42A134A118A119A133A95A66A67A68A69A70A71A65A59A60A60A148A134A245A84A42A139A153A155A134A55A47A56A53A57A55A58A156A114A115A62A63A157A158A159A113A245A160A42A134A161A116A162A163A65A59A60A60A120A128A59A130A133A41A254A135A134A245A83A42A165A167A168A169A170A169A172A173A174A158A175A176A177A178A77A202A147A57A55A58A177A178A245A160A42A168A63A179A95A180A181A62A63A78A107A183A65A41A83A83A84A128A83A130A245A41A60A42A184A185A223A65A186A187A188A65A189A190A191A168A192A193A232A152A55A47A56A53A57A55A58A194A41A59A168A118A119A133A81A82A106A90A69A70A71A65A41A83A83A148A245A41A41A42A195A196A197A65A198A199A200A168A55A47A56A53A57A55A58A194A41A59A201A113A106A203A168A118A119A133A90A204A69A70A71A65A41A83A83A254A245A41A59A42A205A47A54A56A97A48A98A206A207A65A160A122A98A208A53A209A100A207A168A55A47A56A53A57A55A58A132A113A232A152A67A115A106A203A134A118A119A133A81A82A106A90A69A70A71A65A41A83A83A148A90A210A211A212A213A214A215A216A217A219A221A222A224A211A212A213A214A215A216A217A225A226A229A35A230A211A212A213A214A215A216A217A177A35A230A211A212A213A214A215A216A217A233A234A237A238A239A240A241A243CADA244A246A243A248A249A251A252A253A255A16A244A246A243A251A252A33III毕业设计（论文）开题报告设计（论文）题目基于参数化技术的CAD系统的二次开发（液压系统的开发）A1A2A105A5A158A106A0A85A108A3A34传统的液压系统设计中技术人员往往要大量查阅液压手册，工作负荷太，效率不高，难以适应快速产品开发的需求，因此进行液压系统的计算机辅助设计是十分必要的。由于液压系统设计一般是在调研及参数运算的基础上，选用液压元件并绘制出液压系统原理图，我们设计的液压CAD系统主要考虑液压系统原理图的绘制、标准元件的选用、设计计算等方面。本课题所做的工作目的主要是为了相关液压系统企业设计人员提高其设计效率，增强其设计产品的市场竞争力。A9A4A6A7A102A8A27A10A11A12A13A14AUTOCAD是我国广大企业广泛应用的商品化CAD软件，它G7380G7186G14891的G10317G9869G4613是其开G6930G5347G1319系G13479G7512G714它G1813G16780用G6155G4557其G14768G2345G13479G7512、系统G2641G1208等进行G1120G8437开发，并提G1391了G1028G4512的开发工G1867。我们G2045用它所提G1391的ADG54G11AUTOCADDG72G89G72G79OG83G80G72G81TG86G92G86TG72G80G12、DCG47G4557G16817G7706G6523制G16833G16340、G14768G2345技及AUTOG47G44G54G51G16833G16340开发了液压CAD系统。我们选用的开发G5191G2500是AG80G97ADG53G20G23，G58G76G81G71G86开发G10627G3671是G48G76G70G85OG86OG73TG57G76G86UG68G79G70G14G14，数G6466G5223是G57G76G86UG68G79G41OG91G51G85O。在开发G17819G12255中G1817分考虑G11040面G2463G3921G5627的原G2029，大量G18331用G4557G16817G7706进行参数G17767人，并G4557G2520G12879标准数G6466进行数G6466G5223G4396G1660。在液压CAD系统的设计中，G7693G6466液压系统设计的G8505G20600及要求，主要考虑了以G991G19394题G726G11G20G12在液压系统原理图G8181G3371的设计中，考虑G2052液压G3250G17347是用图G5430G12538G2507G15932G12046的液压系统，其G7512G6116是G2327G2476G987化的。G1306是G1889G3809G7446的液压系统G1075是由一G1135基本G3250G17347G7512G6116的，G17837G1135基本G3250G17347是G3822G5192的G13475G20576G12227G13059G13792G5430G6116的G714是G12628G1427G6116G10099G2656行G1055G7389效的。所以在设计液压G3250G17347G7114，选用基本G3250G17347作为设计的基本绘制G2345元，由G17837G1135基本G3250G17347G13464G6116G2520G12193G3809G7446的液压系统G714必G9994G2499以大大提高设计效率。我们G7693G6466大量的液压设计资料，把液压基本G3250G17347分为油源G3250G17347、压力G6523制G3250G17347、速度G6523制G3250G17347、同G8505G3250G17347、顺序G3250G17347、卸荷G3250G17347、增压G3250G17347、减压G3250G17347以及制动G3250G17347等等，并把G17837G1135基本G3250G17347作为哑图进行G4396G1660。为了方G1427用G6155使用，系统提G1391了液压图G5430G12538合G5223G714其中包括常用液压件的图G5430G12538G2507，如油缸、液压马达、泵以及G2520G12879液压阀等，并按照国标GBT786G714G2093液压图G5430G12538G2507的要求绘制如果基本G3250G17347哑图不能满足设计需求G714G2499以G2045用系统提G1391的液压图G5430G12538G2507自行设计。G112G12在标准元件选用G8181G3371的设计中，主要考虑了方G1427用G6155查询与选用G2520G12879标准元件的需求，把G2520G12879标准元件进行分G12879建G5223，G18331用图文G4557G16817G7706的G5430G5347G7186G12046元件的G12879型、G13479G7512、工作原理、G10317G9869以及选用原G2029，使用G6155G2499以快速高效地进行标准元件的选择。在用G6155选择的G17819G12255中，说确认的每一G12193元件都G4396G1660G2052数G6466G5223中，当用G6155选择G13479束G7114，G2499以打印出元件清G2345。A15A17A18A19A20A21A22A23CADA24A25A23A26A28A29A30A31A32A33A24A25A23A29A30A34IVA155A4A10A11A102A8A138A37A35A36A59A111A38A39A14G20、编辑G14768G2345（G2499通G17819任何一G12193编辑器）2、液压相关零部件的标准查询3、液压元件零件参数化绘图G12255序（G57G76G86UG68G79G47G44G54G51）G23、液压元件图G5430G7186G12046的函数G8181G3371处理5、加载、调试、排错6、实现整个工G12255的链接7、完G6116液压系统开发的G12255序调试A242A4A37A35A138A38A210A36A40A114A41A42A14A117A43A138A119A44A45A46A36A65A66A12A13A235A47A48A49A122A235A47A48A50G10099悉课题，调查研究，收集资料A235A47A48A148A122A235A47A48A51拟定方案，完G6116设计的开题报告A235A47A48A52A122A235A47A48A53了解学习AUTOG47G44G54G51等G1867的应用A235A47A54A48A122A235A47A54A148液压元件的相关标准的查询等A235A47A54A51A122A235A47A54A53液压标准件的参数化创建（主要通G17819G47G76G86G83G12255序G16833G16340来编G12255实现）A235A47A49A48A122A235A47A49A49A55A56标准件G1120G8437开发系统连接与测试A235A47A49A50编辑完G6116相关的设计报告A235A47A49A148A122A235A47A49A51设计整理，答辩准备A15A17A18A19A20A21A22A23CADA24A25A23A26A28A29A30A31A32A33A24A25A23A29A30A34VA123A4A57A98A58A60A61A62A14A57A98A58A60A63A64A14A95A96A45A125A4A67A68A61A62A14A67A10A104A63A64A14A95A96A45A15A17A18A19A20A21A22A23CADA24A25A23A26A28A29A30A31A32A33A24A25A23A29A30A34VI目录A69A701A71A723A73A74A75A76A775A74A78A74A79A80A81A82A83A79A84A86A87A88A89A90A91A925A74A78A93A79A80A81A82A83A79A84A86A87A88A89A94A976A74A78A99A79A80A81A82A83A79A84A86A87A88A89A100A101A103A1076A74A78A109A110A112A113A115A90A116A118A120A1218A73A93A75A124A126A127A128A129A130A1319A132A133A134A135A136A137A139A140A141A142A143A144A145A146A1479A132A133A134A133A134A135A136A137A139A140A141A142A143A144A145A129A149A150A151A152A153A154A156A157A1589A132A133A134A133A132A135A136A137A139A140A141A142A143A144A145A129A159A160A156A161A16210A132A133A134A133A163A164A165A166A167A168A146A14710A132A133A134A133A169A170A171A172A139A173A174A142A143A144A145A175A17611A132A133A132A135A136A137A139A140A141A142A143A144A145A129A175A176A177A17811A132A133A132A133A134A133A179A180A181A182A183A181A175A176A129A184A17111A132A133A132A133A132A185A186A177A178A175A17612A132A133A132A133A163A187A188A156A170A171A189A166A190A175A17613A191A163A192A193A194A195A196A197A198A199A200A172A139A173A174A141A136A137A201A202A203A175A17616A163A133A134A197A198A204A205A179A20616A163A133A134A133A134A207A208A209A179A206A129A211A21216A163A133A134A133A132A175A176A129A166A21316A163A133A134A133A163A214A215A216A217A21817A163A133A132A219A220A221A207A208A209A179A20618A163A133A132A133A134A207A208A209A179A206A129A211A21218A163A133A132A133A132A175A176A129A166A21319A163A133A132A133A163A214A215A217A218A21619A191A169A192A197A198A220A222A223A224A124A126A220A222A225A17821A169A133A134A220A222A129A151A152A21621A169A133A132A220A222A170A171A129A226A22722A169A133A163A220A222A157A158A228A229A23022A169A133A169A220A222A129A231A232A233A23423A236A23725A238A239A24026A207A241A164A24327A244A245A246A247A248A249A250A251CADA252A253A251A254A255A9A0A15A16A1A252A253A251A9A0A181基于参数化技术的CAD系统的二次开发（液压系统的开发）摘要AUTOCAD是目前市场上G7380流行的CAD系统，它所G1867G7389的G2499编G12255，易于定制以及G2499扩展等G10317G5627G7186G14891提高了用G6155的工作效率。本课题正是G2045用了它能适应用G6155要求，完G6116需求化定制的功能，G18331用VISUALLISP编辑器完G6116G4557主调函数的G17767入，以及实现整个工G12255联G13479工作的。AUTOCAD2000内嵌的VISUALLISP编辑器，G2499以方G1427地调用AUTOCAD的绘图G2641G1208，使设计G2656绘图完全溶为一G1319，G2499实现G4557屏幕图G5430的实G7114修改，参数化设计，以及在绘图领域中应用人工智能。本项目所做的工作目的主要是为了地方相关液压元件设计人员提高其设计效率，增强其设计产品的市场竞争能力。在实践工作G17819G12255中G12255序的绘图，主调函数部分G18331用VISUALLISPG12255序G16833G16340，G4557G16817G7706G18331用DCLG16833G16340进行设计。完G6116G4557一个工G12255的整G1319设计，包括G726G14768G2345的编辑、G4557G16817G7706的编制、绘图G12255序、填G1817图案、幻G9795G10267G7186G12046，实现G1186CAD标准G14768G2345中G6566入定制项目，并由G4557G14768G2345的G6817作，通G17819G4557G16817G7706G17767入参数，调用绘图G12255序，绘制出G7693G6466参数要求的图G5430文件，并G1000G2499以G4557所绘制图G5430进行数G6466G12661理。所做工作主要如G991G7261、集G6116于AUTOCAD软件的G14768G2345（G2499通G17819任何一G12193编辑器）2、参数化G17767入G4557G16817G7706的编制（DCLG16833G16340）G6122G2029OPENDCL3、液压元件的参数化设计G12255序（VISUALLISP）4、G4557G16817G7706中幻G9795G10267G7186G12046（幻G9795G10267的创建于G5223G5515使用）5、加载、调试、排错6、实现整个工G12255的链接7、完G6116液压元件的G12255序调G53478、编G1901设计说G7138G1082一G1233G7706G12255序的连接。关键字液压CADG727VISUALLISPG727DCLA2A3A4A5A6A7A8A10CADA11A12A10A13A14A17A19A20A21A22A11A12A10A17A19A232ABSTRACTAUTOCADISTHEMARKETSMOSTPOPULARCADSYSTEMS,ITHASAPROGRAMMABLE,EASYCUSTOMIZATIONANDOTHERFEATURESCANBEEXTENDEDSIGNIFICANTLYIMPROVEUSERPRODUCTIVITYTHEISSUEISTHEUSEOFITCANADAPTTOUSERREQUIREMENTS,COMPLETECUSTOMIZATIONOFFUNCTIONDEMAND,USINGVISUALLISPEDITORTOCOMPLETETHEMAINTHEMEOFTHEFUNCTIONOFTHEINPUT,ANDWORKTOACHIEVETHEPROJECTLINKAUTOCAD2000VISUALLISPEDITOREMBEDDED,CANEASILYCALLTHEAUTOCADDRAWINGCOMMANDS,SOTHATTHEDESIGNANDDRAWINGTOTALLYINTEGRATED,ENABLINGREALTIMECHANGESONSCREENGRAPHICS,PARAMETRICDESIGN,ANDGRAPHICSAPPLICATIONSINTHEFIELDOFARTIFICIALINTELLIGENCETHEMAINPURPOSEOFTHEPROJECTWORKRELATEDTOLOCALHYDRAULICCOMPONENTDESIGNERSTOIMPROVEDESIGNEFFICIENCYANDENHANCEITSABILITYTODESIGNPRODUCTMARKETCOMPETITIONPROCEDURESWORKINPRACTICE,THEPROCESSOFDRAWING,THEMAINTHEMEOFTHEFUNCTIONPARTOFTHEPROGRAMMINGLANGUAGEUSEDVISUALLISP,DCLLANGUAGEUSEDTODESIGNTHEDIALOGBOXCOMPLETIONOFAPROJECTSOVERALLDESIGN,INCLUDINGTHEEDITMENU,DIALOGBOX,THECOMPILATION,DRAWINGPROGRAM,FILLPATTERN,SLIDESHOWFROMACADSTANDARDMENUTOINSERTCUSTOMITEMSONTHEMENUBYTHEOPERATIONINPUTTHROUGHTHEDIALOGBOXPARAMETERS,CALLTHEDRAWINGPROGRAM,DRAWTHEREQUIREDGRAPHICSFILESACCORDINGTOPARAMETERSANDCANBEPLOTTEDONTHEGRAPHFORDATAMANAGEMENTDONEPRIMARILYASFOLLOWS1,INTEGRATEDINTHEAUTOCADSOFTWAREMENUAVAILABLETHROUGHANYOFTHEEDITOR2,PARAMETERINPUTDIALOGBOX,THECOMPILATIONDCLLANGUAGEORTHEOPENDCL3,HYDRAULICCOMPONENTSOFTHEPARAMETRICDESIGNPROGRAMVISUALLISP4DIALOGBOX,SLIDESHOWSLIDESCREATEDINKURDISHONLY5,LOADING,DEBUGGING,TROUBLESHOOTING6,TOACHIEVETHEPROJECTSLINK7,HYDRAULICCOMPONENTSOFTHEPROGRAMCOMPLETEDDEBUGGING8,THEPREPARATIONOFTHEDESIGNSPECIFICATIONOFAFRAMEPROGRAMSKEYWORDSHYDRAULICCADVISUALLISPDCLA2A3A4A5A6A7A8A10CADA11A12A10A13A14A17A19A20A21A22A11A12A10A17A19A233前言G19555G11540工G12255技术的发展，计算机辅助设计（CAD技术）G5483G2052了G17817速G7234及，G5062G13475G6116为G11017G4388G1461G5699技术的G18337要G13464G6116部分。它使G5483产品设计工作的内G4493G2656方G5347产G10995了G7693本G5627G2476G19773G727是提高产品G2656工作设计G8712G5191、G19489G1314G9052G13803、G13565G11713G12197研G2656G7044产品开发G2620G7411、大G5145度提高G2183动G10995产率的一项关G19202技术G727G6116为设计产品G1457G6357竞争G1260G2195，开G6311市场的主要技术手G8585。G1288G19555G11540CAD技术的发展G2656应用，G2520G12193商品化的CAD软件G1075应运G13792G10995并G17817速发展，AUTOCAD软件G4613是其中的G1260G12180软件G1055一。AUTOCAD是G13666国AUTODG72G86G78G1856G2508G20982G5192G6524出的，目前G1002G11040上G7380为流行，G7380为G6116功的CAD软件。G17837不G1177G1177是因为它G7389G19762常强大的功能、G6915G6357的G3818设G2656G5191G2500G5468G3822、G1227G7696G2460G1314、易学易用，G7380主要的是AUTOCADG1867G7389开G6930G5347的G1319系G13479G7512，G1813G16780用G6155在G1972G1058所G7389方面G4557其进行修改G2656扩G1817，用以满足G2520G12193用G6155自G5061的G10317G8542需要。通G17819G4557AUTOCAD功能的调整、扩G1817以满足用G6155G10317定要求的方G8873G7389G7114G12228为G4557AUTOCAD的定制。通G17819定制，G2499以G7512G17908出G12538合用G6155习G5827的AUTOCAD系统，G1075G2499提高工作效率。由于AUTOCAD的每一部分都G2499以按要求定制，如定G1053一个G4557G16817G7706，G10995G6116一G12193G10317G8542G13459型。因此，定制G2499能是应用AUTOCAD中G7380G7389创G17908G5627G2656G7380G1208人G5875G1864G17271的工作。本课题正是G2045用其能满足G10317定用G6155要求的G2520G12193定制功能，适应市场G4557基本零部件绘图G8181G3371的需求，G4557一G1135常用的液压元件进行定制，包括G726G14768G2345、绘制图G5430、幻G9795G10267G7186G12046，并G1183G13473了AUTOG47G44G54G51、G57G76G86UG68G79G47G44G54G51、G4557G16817G7706G6523制G16833G16340（DCG47），以及基于G17837部分的应用，实现一个完整的工G12255G1319。通G17819本课题的实践，G13520合CAD开发系统的G10317G9869，G5468G4493易G16765我们发现，我们不必是AUTOCADG999G4490G6122G12255序员，G2494要G11705G17959AUTOCAD的基本G2641G1208，G4613G2499以完G6116G4557G2520G12193需求产品的定制。在G12255序编制G17819G12255中，由G4579G12255序出发，一G8505一G8505分G8585进行G12255序调试，G7509大的提高了整个工作G17819G12255的效率，使我们G5468G17743G7506的完G6116了G4557常用液压元件绘图G8181G3371的定制，实现了基于产品零件的AUTOCAD的G1120G8437开发。G8892G726本课G12255的工作任G2165都是G7693G6466图G20展开的。A24A25A26A27A28A29A30A31CADA32A33A31A34A35A36A37A38A39A40A32A33A31A36A37A414CANCELOK图G20实践任G2165流G12255图主调函数（G57G76G86UG68G79G47G44G54G51）AUTOCAD标准屏幕G14768G2345G14768G2345定制G4557G16817G7706编辑（DCG47）绘图G12255序G50G78G763CG68G81G70G72G79绘制图G5430并G7186G12046于屏幕A24A25A26A27A28A29A30A31CADA32A33A31A34A35A36A37A38A39A40A32A33A31A36A37A415第1章绪论11AUTOCAD二次开发的历史AUTOCAD是目前在G58G76G81G71OG90G86G10627G3671G991应用G7380广泛，使用人数G7380G3822的CAD软件。G1306AUTOCAD所提G1391G13485的G2494是一般的通用的CAD功能，如G17908型、绘图、编辑、G8892G18334等，要G5831完G6116一个设计项目，G4600其当项目中不同G16280G7696的同一零件（通常G6363标准件）数量G5234大G7114，G2345G13443CAD中的通用功能G4613G7186G6429G16179G16277G13932了。因此，G4557AUTOCAD的G1120G8437开发十分必要。G12544一G8437G9022G9538源于AUTOCAD进入中国。G2099G19G5192。G18039G7114AUTOCADG17836是2G176G10268。G17837G8437G9022G9538G1431进了G5468G3822高G7669、G12197研G19510所G2656大型企业开G3999G3272G13481AUTOCAD进行G1120G8437开发。G12544G1120G8437G9022G9538源于G12197技部在G256G1073G1128G257G7411G19400G6524进G256G11005图板工G12255G257。G17837G7411G19400，CAXA（当G7114叫北航海尔）、高华（现在的英泰）、凯思、开目、大天、凯图、大凯、CCAD（深圳乔纳森）等一批国内自主G10268权CAD在政府G2656市场的双G18337G6524动G991G6116长起来。G18039G7114，G4557国产CAD软件G7380大的挑战是与AUTOCAD盗G10268G17837G12193G1972G1058不要钱的软件竞争G727另G3818，与AUTOCAD的兼G4493G5627，企业的工G12255师使用AUTOCAD的习G5827G1075是G5468大挑战，并G1000G17837G1135自主G10268权软件的开G6930G5627方面G1075G4396在不足。当G7114，CAXAG6524出了400G3822元一套的G1120维CAD软件，彻底改G2476了市场G7696局，后来G2460G6524出了三维CAD软件，G13792CAXA的CAMG1075是一大G10317色。其它CAD软件G1856G2508G2029逐渐将G18337G9869转向了CAPP/PDM等产品，并开G3999代理国G3818CAD/PLM巨头的高端软件产品。G137921998G5192，AUTODESK收购GENUIS，自G5061G6524出机械G10268G2656G11017气G10268，使G5483国内基于AUTOCAD进行G1120G8437开发的CAD软件的G10995G4396空G19400减G4579了G5468G3822。值G5483赞赏的是，2001G5192，G7044洲协同软件G1856G2508研发、G6524出了自主品牌的三维CAD软件SOLID2000（SOLID3000的前身）。由于微机加视窗9598NTG6817作系统与工作站加UG81G76G91G6817作系统在以太网的G10627G3671G991G7512G6116了CAD系统的主流工作G5191G2500，因此现在的CAD技术G2656系统都G1867G7389良G3921的开G6930G5627。图G5430接口、图G5430功能日趋标准化。在CAD系统中，G13520合应用正文、图G5430、图像、G16833音等G3822媒G1319技术G2656人工智能、G999G4490系统等技术大大提高了自动化设计的G12255度，出现了智能CADG7044学G12197。智能CAD把工G12255数G6466G5223及其G12661理系统、G11705识G5223及其G999G4490系统、拟人化用G6155接口G12661理系统集于一G1319。CAD技术一直处于不断的发展与探索G1055中，正是G17837G12193此G9052彼长的互动与交替，G17908G4613了今天CAD技术的G1864旺与繁荣，G1431进了工业的高速发展。A42A43A44A45A46A47A48A49CADA50A51A52A53A54A55A56A57A58A59A50A51A52A55A56A60612AUTOCAD二次开发现状AUTOCAD应该是机械工G12255师G7380为G10099悉的工G12255软件了,G13792G1000在工G12255师眼中AUTOCADG1972G1058G6116了CAD软件的代名词了,一提G2052CAD三个字母,首先会G5831G2052的是AUTOCAD。AUTOCAD发展G2052现在G5062G13475是一个比较通用的适合G2520个行业进行设计工作的G5191G2500了，G17837是毋庸置疑的，在G17837里G2494谈AUTOCAD的G1120维功能，G2499能G7389G3921G3822人都不G11705G17959AUTOCADG17836能够进行三维建G8181，不G17819比起其三维G5191G2500G44G81G89G72G81TOG85的建G8181功底AUTOCAD的G17837G9869G4579伎俩G2499以忽略了。尽G12661AUTOCADG5062G13475提G1391足够强大的G2520G12193功能，G1306是为了提高效率、G1075为了满足G2520个企业不同产品G10995产、设计的需求，G2499能会G4557AUTOCAD做一G1135G2499以满足自G5061需求功能的G1120G8437开发，以提高自G5061的设计效率，例如建立自G5061G1856G2508产品的G8181型数G6466G5223，G4557G8181型实现G2499参数化设计，一G1135快捷功能的开发等等。AUTOCAD不是一个密闭的软件，它G13485设计者预留了一扇通向AUTOCAD内部系统的大门AG51G44。G4557于AUTOCAD进行G1120G8437开发G2499以使用的G16833G16340工G1867G7389内部集G6116的AUTOG47G76G86G83、G57BA、G3818G3272G17819象G57B、C、及G7380G7044的G17NETG5191G2500通G17819CG50G48G4557AUTOCAD进行G1120G