外文翻译.doc

JS500混凝土搅拌机设计【说明书+CAD】

收藏

资源目录
跳过导航链接。
压缩包内文档预览:(预览前15页/共16页)
预览图 预览图 预览图 预览图 预览图 预览图 预览图 预览图 预览图 预览图 预览图 预览图 预览图 预览图 预览图
编号:10049021    类型:共享资源    大小:1.27MB    格式:RAR    上传时间:2018-04-23 上传人:柒哥 IP属地:湖南
12
积分
关 键 词:
js500 混凝土搅拌机 设计 说明书 仿单 cad
资源描述:

【温馨提示】 购买原稿文件请充值后自助下载。

以下预览截图到的都有源文件,图纸是CAD,文档是WORD,下载后即可获得,所见即所得。

预览截图请勿抄袭,原稿文件完整清晰,无水印,可编辑。

有疑问可以咨询QQ12401814



内容简介:
HAVE2007IEEEINTERNATIONALWORKSHOPONHAPTICAUDIOVISUALENVIRONMENTSANDTHEIRAPPLICATIONSOTTAWA,CANADA1214OCTOBER2007EXTENDINGBLENDERDEVELOPMENTOFAHAPTICAUTHORINGTOOLSHELDONANDREWS,MOHAMADEID2,ATIFALAMRI2,ANDABDULMOTALEBELSADDIK2MULTIMEDIACOMMUNICATIONSRESEARCHLABORATORYMCRLABSCHOOLOFINFORMATIONTECHNOLOGYANDENGINEERINGUNIVERSITYOFOTTAWA,ONTARIO,KIN6N5,CANADASANDRO71SITEUOTTAWACA,2TEID,ATIFWABEDMCRLABUOTTAWACAABSTRACTINTHISPAPER,WEPRESENTOURWORKTOEXTENDAWELLKNOWN3DGRAPHICMODELERBLENDERTOSUPPORTHAPTICMODELINGANDRENDERINGTHEEXTENSIONTOOLISNAMEDHAMLATHAPTICAPPLICATIONMARKUPLANGUAGEAUTHORINGTOOLWEDESCRIBETHEMODIFICATIONSANDADDITIONSTOTHEBLENDERSOURCECODEWHICHHAVEBEENUSEDTOCREATEHAMLATFURTHERMORE,WEPRESENTANDDISCUSSTHEDESIGNDECISIONSUSEDWHENDEVELOPINGHAMLAT,ANDALSOANIMPLEMENTATION“ROADMAP“WHICHDESCRIBESTHECHANGESTOTHEBLENDERSOURCECODEFINALLY,WECONCLUDEWITHDISCUSSIONOFOURFUTUREDEVELOPMENTANDRESEARCHAVENUESKEYWORDSHAPTICSHAMLGRAPHICMODELERSBLENDERVIRTUALENVIRONMENTSIINTRODUCTIONAMOTIVATIONTHEINCREASINGADOPTIONOFHAPTICMODALITYINHUMANCOMPUTERINTERACTIONPARADIGMSHASLEDTOAHUGEDEMANDFORNEWTOOLSTHATHELPNOVICEUSERSTOAUTHORANDEDITHAPTICAPPLICATIONSCURRENTLY,THEHAPTICAPPLICATIONDEVELOPMENTPROCESSISATIMECONSUMINGEXPERIENCETHATREQUIRESPROGRAMMINGEXPERTISETHECOMPLEXITYOFHAPTICAPPLICATIONSDEVELOPMENTRISESFROMTHEFACTTHATTHEHAPTICAPPLICATIONCOMPONENTSSUCHASTHEHAPTICAPI,THEDEVICE,THEHAPTICRENDERINGALGORITHMS,ETCNEEDTOINTERACTWITHTHEGRAPHICCOMPONENTSINORDERTOACHIEVESYNCHRONICITYADDITIONALLY,THEREISALACKOFAPPLICATIONPORTABILITYASTHEAPPLICATIONISTIGHTLYCOUPLEDTOASPECIFICDEVICETHATNECESSITATESTHEUSEOFITSCORRESPONDINGAPITHEREFORE,DEVICEANDAPIHETEROGENEITYLEADTOTHEFRAGMENTATIONANDDISORIENTATIONOFBOTHRESEARCHERSANDDEVELOPERSINVIEWOFALLTHESECONSIDERATIONS,THEREISACLEARNEEDFORANAUTHORINGTOOLTHATCANBUILDHAPTICAPPLICATIONSWHILEHIDINGPROGRAMMINGDETAILSFROMTHEAPPLICATIONMODELERSUCHASAPI,DEVICE,ORVIRTUALMODELTHISPAPERDESCRIBESTHETECHNICALDEVELOPMENTOFTHEHAPTICAPPLICATIONMARKUPLANGUAGEAUTHORINGTOOLHAMLATITISINTENDEDTOEXPLAINTHEDESIGNDECISIONSUSEDFORDEVELOPINGHAMLATANDALSOPROVIDESANIMPLEMENTATION“ROADMAP“,DESCRIBINGTHESOURCECODEOFTHEPROJECTBBLENDERHAMLATISBASEDONTHEBLENDER1SOFTWARESUITE,WHICHISANOPENSOURCE3DMODELINGPACKAGEWITHARICHFEATURESETITHASASOPHISTICATEDUSERINTERFACEWHICHISNOTEDFORITSEFFICIENCYANDFLEXIBILITY,ASWELLASITSSUPPORTSFORMULTIPLEFILEFORMATS,PHYSICSENGINE,MODEMCOMPUTERGRAPHICRENDERINGANDMANYOTHERFEATURESBECAUSEOFBLENDERSOPENARCHITECTUREANDSUPPORTIVECOMMUNITYBASE,ITWASSELECTEDASTHEPLATFORMOFCHOICEFORDEVELOPMENTOFHAMLATTHEOPENSOURCENATUREOFBLENDERMEANSHAMLATCANEASILYLEVERAGEITSEXISTINGFUNCTIONALITYANDFOCUSONINTEGRATINGHAPTICFEATURESWHICHMAKEITACOMPLETEHAPTOVISUALMODELINGTOOL,SINCEDEVELOPINGA3DMODELINGPLATFORMFROMSCRATCHREQUIRESCONSIDERABLEDEVELOPMENTTIMEANDEXPERTISEINORDERTOREACHTHELEVELOFCODEINTOTHEHAMLATSOURCETREEHAMLATBUILDSONEXISTINGBLENDERCOMPONENTS,SUCHASTHEUSERINTERFACEANDEDITINGTOOLS,BYADDINGNEWCOMPONENTSWHICHFOCUSONTHEREPRESENTATION,MODIFICATION,ANDRENDERINGOFHAPTICPROPERTIESOFOBJECTSINA3DSCENEBYUSINGBLENDERASTHEBASISFORHAMLAT,WEHOPETODEVELOPA3DHAPTICMODELINGTOOLWHICHHASTHEMATURITYANDFEATURESOFBLENDERCOMBINEDWITHTHENOVELTYOFHAPTICRENDERINGATTHETIMEOFWRITING,HAMLATISBASEDONBLENDERVERSION243SOURCECODECPROJECTGOALSASPREVIOUSLYSTATED,THEOVERALLGOALFORTHEHAMLATPROJECTISTOPRODUCEAPOLISHEDSOFTWAREAPPLICATIONWHICHCOMBINESTHEFEATURESOFAMODEMGRAPHICMODELINGTOOLWITHHAPTICRENDERINGTECHNIQUESHAMLATHASTHE“LOOKANDFEEL“OFA3DGRAPHICALMODELINGPACKAGE,BUTWITHTHEADDITIONOFFEATURESSUCHASHAPTICRENDERINGANDHAPTICPROPERTYDESCRIPTORSTHISALLOWSARTISTS,MODELERS,ANDDEVELOPERSTOGENERATEREALISTIC3DHAPTOVISUALVIRTUALENVIRONMENTSAHIGHLEVELBLOCKDIAGRAMOFHAMLATISSHOWNINFIGURE1ITILLUSTRATESTHEFLOWOFDATAINTHEHAPTICMODELINGHAMLATASSISTSTHEMODELER,ORAPPLICATIONDEVELOPER,INBUILDINGHAPTOVISUALAPPLICATIONSWHICHMAYBESTOREDINADATABASEFORLATERRETRIEVALBYANOTHERHAPTICAPPLICATIONBYHAPTOVISUALAPPLICATIONWEREFERTOANYSOFTWAREWHICHDISPLAYSA3DSCENEBOTHVISUALLYANDHAPTICALLYTOAUSERINAVIRTUALSETTINGANXMLFILEFORMAT,CALLEDHAML2,ISUSEDTODESCRIBETHE3DSCENESANDSTORETHEHAPTOVISUALENVIRONMENTSBUILTBYAMODELERFORLATERPLAYBACKTOANENDUSERTRADITIONALLY,BUILDINGHAPTOVISUALENVIRONMENTSHASREQUIREDASTRONGTECHNICALANDPROGRAMMINGBACKGROUNDTHETASKOFHAPTICALLYRENDERINGA3DSCENEISTEDIOUS1108SINCEHAPTICPROPERTIESMUSTBEASSIGNEDTOINDIVIDUALOBJECTSINTHESCENEANDCURRENTLYTHEREAREFEWHIGHLEVELTOOLSFORACCOMPLISHINGTHISTASKHAMLATBRIDGESTHISGAPBYINTEGRATINGINTOTHEHAMLFRAMEWORKANDDELIVERINGACOMPLETESOLUTIONFORDEVELOPMENTOFHAPTOVISUALAPPLICATIONSREQUIRINGNOPROGRAMMINGKNOWLEDGETHEREMAINDEROFTHEPAPERISORGANIZEDASFOLLOWSINSECTION2,WEPRESENTTHEPROPOSEDARCHITECTUREEXTENSIONSANDDISCUSSDESIGNCONSTRAINTSSECTION3DESCRIBESTHEIMPLEMENTATIONDETAILSANDHOWHAPTICPROPERTIESAREADDEDANDRENDEREDWITHINTHEBLENDERFRAMEWORKINSECTION4WEDISCUSSRELATEDISSUESANDFUTUREWORKAVENUESIISYSTEMOVERVIEWANDARCHITECTURETHEBLENDERDESIGNPHILOSOPHYISBASEDONTHREEMAINTASKSDATASTORAGE,EDITING,ANDVISUALIZATIONACCORDINGTOTHELEGACYDOCUMENTATION3,ITFOLLOWSADATAVISUALIZEEDITDEVELOPMENTCYCLEFORTHE3DMODELINGPIPELINEA3DSCENEISREPRESENTEDUSINGDATASTRUCTURESWITHINTHEBLENDERARCHITECTURETHEMODELERVIEWSTHESCENE,MAKESCHANGESUSINGTHEEDITINGINTERFACEWHICHDIRECTLYMODIFIESTHEUNDERLYINGDATASTRUCTURES,ANDTHENTHECYCLEREPEATSTOBETTERUNDERSTANDTHISDEVELOPMENTCYCLE,CONSIDERTHEREPRESENTATIONOFA3DOBJECTINBLENDERA3DOBJECTMAYBEREPRESENTEDBYANARRAYOFVERTICESWHICHHAVEBEENORGANIZEDASAPOLYGONALMESHUSERSMAYCHOOSETOOPERATEONANYSUBSETOFTHISDATASETEDITINGTASKSMAYINCLUDEOPERATIONSTOROTATE,SCALE,ANDTRANSLATETHEVERTICES,ORPERHAPSAREMESHINGALGORITHMTO“CLEANUP“REDUNDANTVERTICESANDTRANSFORMFROMAQUADTOATRIANGLETOPOLOGYTHEDATAISVISUALIZEDUSINGAGRAPHICAL3DRENDERERWHICHISCAPABLEOFDISPLAYINGTHEOBJECTASAWIREFRAMEORASASHADED,SOLIDSURFACETHEVISUALIZATIONISNECESSARYINORDERTOSEETHEEFFECTSOFEDITINGONTHEDATAINANUTSHELL,THISEXAMPLEDEFINESTHEDESIGNPHILOSOPHYBEHINDBLENDERSARCHITECTUREINBLENDER,DATAISORGANIZEDASASERIESOFLISTSANDBASEDATATYPESARECOMBINEDWITHLINKSBETWEENITEMSINEACHLIST,CREATINGCOMPLEXSCENESFROMSIMPLESTRUCTURESTHISALLOWSDATAELEMENTSINEACHLISTTOBEREUSED,THUSREDUCINGTHEOVERALLSTORAGEREQUIREMENTSFOREXAMPLE,AMESHMAYBELINKEDBYMULTIPLESCENEOBJECTS,BUTTHEPOSITIONANDORIENTATIONMAYCHANGEFOREACHOBJECTANDTHETOPOLOGYOFTHEMESHREMAINSTHESAMEADIAGRAMILLUSTRATINGTHEORGANIZATIONOFDATASTRUCTURESANDREUSEOFSCENEELEMENTSISSHOWNINFIGURE2ASCENEOBJECTLINKSTOTHREEOBJECTS,EACHOFWHICHLINKTOTWOPOLYGONALMESHESTHEMESHESALSOSHAREACOMMONMATERIALPROPERTYTHEENTIRESCENEISRENDEREDONONEOFSEVERALSCREENS,WHICHVISUALIZESTHESCENEWEADOPTTHEBLENDERDESIGNAPPROACHFOROURAUTHORINGTOOLTHEDATASTRUCTURESWHICHAREUSEDTOREPRESENTOBJECTSINA3DSCENEHAVEBEENAUGMENTEDTOINCLUDEFIELDSFORHAPTICPROPERTIESEG,STIFFNESS,DAMPINGUSERINTERFACECOMPONENTSEG,BUTTONPANELSWHICHALLOWTHEMODELERTOCHANGEOBJECTPROPERTIESHAVEALSOBEENUPDATEDTOINCLUDESUPPORTFORMODIFYINGTHEHAPTICPROPERTIESOFANOBJECTADDITIONALLY,ANINTERACTIVEHAPTOVISUALRENDERERHASBEENIMPLEMENTEDTODISPLAYTHE3DSCENEGRAPHICALLYANDHAPTICALLY,PROVIDINGTHEMODELERORARTISTWITHIMMEDIATEFEEDBACKABOUTTHECHANGESTHEYMAKETOTHESCENEINTHECURRENTVERSIONOFTHEHAMLATTHEMODIFICATIONSTOTHEBLENDERFRAMEWORKINCLUDEDATASTRUCTURESFORREPRESENTINGHAPTICPROPERTIES,ANEDITINGINTERFACEFORMODIFYINGHAPTICPROPERTIES,ANEXTERNALRENDERERFORDISPLAYINGANDPREVIEWINGHAPTICALLYENABLEDSCENES,SCRIPTSWHICHALLOWSCENESTOBEIMPORTED/EXPORTEDINTHEHAMLFILEFORMATACLASSDIAGRAMOUTLININGTHECHANGESTOTHEBLENDERRAMEWORKISSHOWNINFIGURE3COMPONENTSWHICHAREERTINENTTOHAMLATARESHADEDINGRAYHAMLATBUILDSONEXISTINGBLENDERSUBSYSTEMSBYEXTENDINGTHEMORHAPTICMODELINGPURPOSESDATASTRUCTURESFORREPRESENTINGOBJECTGEOMETRYANDGRAPHICALRENDERINGAREAUGMENTEDTOINCLUDEFIELDWHICHENCOMPASSTHETACTILEPROPERTIESNECESSARYFORHAPTICRENDERINGTOALLOWTHEUSERTOMODIFYHAPTICPROPERTIESGUICOMPONENTSAREINTEGRATEDASPARTOFTHEBLENDEREDITINGPANELSTHEOPERATIONSTRIGGEREDBYTHESECOMPONENTSOPERATEDIRECTLYONTHEDATASTRUCTURESUSEDFORREPRESENTINGHATICCUESANDMAYBECONSIDEREDPARTOFTHEEDITINGSTEPOFTHEBLENDERDESIGNCYCLESIMILARLYTOTHEBUILTINGRAPHICALRENDERER,HAMLATUSESACUSTOMRENDLERERFORDISPLAYING3DSSCENESGRPHCALANDHAPTCALL,ANISINEEDNOFTHEBLENDERRENDERERTHISCOMPONENTISDEVELOPEDINDEPENDENTLYSINCEHAPTICALANDGRAPHICALRENDERINGMUSTBEPERFORMEDSIMULTANEOUSLYANDSYNCHRONOUSLYASIMULATIONLOOPISUSEDTOUPDATEHAPTICRENDERINGFORCESATARATEWHICHMAINTAINSSTABILITYANDQUALITYADETAILEDDISCUSSIONOFTHEIMPLEMENTATIONOFTHESECLASSESANDTHEIRCONNECTIVITYISGIVENINTHENEXTSECTIONIIIIMLIEMENTATIONADATASTRUCTUREA1MESHDATATYPEBLENDERUSESMANYDIFFERENTDATASTRUCTURESTOREPRESENTTHEVARIOUSTYPESOFOBJECTSINA3DSCENEAVERTICESALAMPCONTAINSCOLOURANDINTENSITYVALUESANDCAMERAAOBJECTCONTAINSINTRINSICVIEWINGPARAMETERSTHEMESHDATASTRUCTUREISUSEDBYTHEBLENDERINFRAMEWORKTODESCRIBEAPOLYGONALMESHOBJECTITISOFPARTICULARINTERESTFORHAPICRENDERINGSINCEMANYSOLIDOBJECTSINA3DSCENEMAYBEREPRESENTEDUSINGTHISTYPEOFDATASTRUCTURETHETACTILEANDKINESTHETICCUES,WHICHAREDISPLAYEDDUETOINTERACTIONWITHVIRTUALOBJECTS,ARETYPICALLYRENDEREDBASEDONTHEGEOMETRYOFTHEMESHHPTICRENDERINGISPERFORMEDBASEDPRIMARYONDATASTOREDINTHISDATATYPEOTHERSCENECOMPONENTSSUCHASLAMPS,CAMERAS,ORLINESARENOTINTUITIVELYRENDEREDUSINGFORCEFEEDBACKHAPTICDEVICESANDARETHEREFORENOTOFCURRENTINTERESTFORHAPTICRENDERINGANAUGMENTEDVERSIONOFTHEMESHDATASTRUCTUREISSHOWNINFIGURE4ITCONTAINSFIELDSFORVERTEXANDFACEDATA,PLUSSOMESPECIALCUSTOMDATAFIELDSWHICHALLOWDATATOBESTOREDTO/RETRIEVEDFROMDISKANDMEMORYWEHAVEMODIFIEDTHISDATATYPETOINCLUDEAPOINTERTOAMHAPTICSDATASTRUCTURE,WHICHSTORESHAPTICPROPERTIESSUCHASSTIFFNESS,DAMPING,ANDFRICTIONFORTHEMESHELEMENTSFIGURE5A2EDITMESHDATATYPEITSHOULDBENOTEDTHATTHEMESHDATATYPEHASACOMPLIMENTARYDATASTRUCTURE,CALLEDEDITMESH,WHICHISUSEDWHENEDITINGMESHDATAITHOLDSACOPYOFTHEVERTEX,EDGE,ANDFACEDATAFORAPOLYGONALMESHWHENTHEUSERSWITCHESTOEDITINGMODE,THEBLENDERCOPIESTHEDATAFROMAMESHINTOANEDITMESHANDWHENEDITINGISCOMPLETETHEDATAISCOPIEDBACKCAREMUSTBETAKENTOENSURETHATTHEHAPICPROPERTYDATASTRUCTUREREMAINSINTACTDURINGTHECOPYSEQUENCETHEEDITMESHDATASTRUCTUREHASNOTBEENMODIFIEDTOCONTAINACOPYOFTHEHAPICPROPERTYDATA,BUTTHISMAYPROPERTIESINEDITMODEISREQUIREDTHEEDITINGMODEISMAINLYUSEDTOMODIFYMESHTOPOLOGYANDGEOMETRY,NOTTHEHAPTICANDGRAPHICALRENDERINGCHARACTERISTICS,A3HAPTICPROPERTIESINTHISSECTIONWELLBRIEFLYDISCUSSTHEHAPTICPROPERTIESWHICHMAYCURRENTLYBEMODELEDUSINGHAMLATITISIMPORTANTFORTHEMODELERTOUNDERSTANDTHESEPROPERTIESANDTHEIRBASISFORUSEINHAPTICRENDERINGTHESTIFFNESSOFANOBJECTDEFINESHOWRESISTANTITISTODEFORMATIONBYSOMEAPPLIEDFORCEHARDOBJECTS,SUCHASAROCKORTABLE,HAVEVERYHIGHSTIFFNESSSOFTOBJECTS,SUCHASRUBBERBALL,HAVELOWSTIFFNESSTHEHARDNESSSOFTNESSOFANOBJECTISTYPICALLYRENDEREDUSINGTHSPRINGFORCEEQUATIONWHERETHEFORCEFEEDBACKVECTORFWHICHISDISPLAYEDTOTHEUSERISCOMPUTEDUSINGKSTHESTIFFNESSCOEFFICIENTVARIABLENAMESTIFFNESSFORTHEOBJECTANDXTHEPENETRATIONDEPTHDISPLACEMENTOFTHEHAPTICPROXYINTOANOBJECTTHESTIFFNESSCOEFFICIENTHASARANGEOF0,1,WHERE0REPRESENTSNORESISTANCETODEFORMATIONAND1REPRESENTSTHEMAXIMUMSTIFFNESSWHICHMAYBERENDEREDBYTHEHAPTICDEVICETHEDAMPINGOFANOBJECTDEFINESITSRESISTANCETOTHERATEOFDEFORMATIONDUETOSOMEAPPLIEDFORCEITISTYPICALLYRENDEREDUSINGTHEFORCEEQUATIONWHEREKDISTHEDAMPINGCOEFFICIENTVARIABLENAMEMHAPTICSDAMPINGANDDEPDTISTHEVELOCITYOFTHEHAPTICPROXYASITPENETRATESANOBJECTTHEDAMPINGCOEFFICIENTALSOHASARANGEOF0,1ANDMAYBEUSEDTOMODELVISCOUSBEHAVIOUROFAMATERIALITALSOINCREASESTHESTABILITYOFTHEHAPTICRENDERINGLOOPFORDSTIFFMATERIALSTHESTATICFRICTIONVARIABLENAMESTJRICTIONANDDYNAMICFRICTIONVARIABLENAMEDYJRICTIONCOEFFICIENTAREUSEDTOMODELTHEFRICTIONALFORCESEXPERIENCEDWHILEEXPLORINGTHESURFACEOFA3DOBJECTSTATICFRICTIONISEXPERIENCEDWHENTHEPROXYISNOTMOVINGOVERTHEOBJECTSSURFACE,ANDANINITIALFORCEMUSTBEUSEDTOOVERCOMESTATICFRICTIONDYNAMICFRICTIONISFELTWHENTHEPROXYMOVESACROSSTHESURFACE,RUBBINGAGAINSTITFRICTIONALCOEFFICIENTSALSOHAVEARANGEOF/0,1,WITHAVALUEOF0MAKINGTHESURFACEOFA3DOBJECTFEEL“SLIPPERY“ANDAVALUEOF1MAKINGTHEOBJECTFEELVERYROUGHFRICTIONALFORCESARETYPICALLYRENDEREDINADIRECTIONTANGENTIALTOTHECOLLISIONPOINTOFTHEHAPTICPROXYATANOBJECTSSURFACEBEDITINGBLENDERUSESASETOFNONOVERLAPPINGWINDOWSCALLEDSPACESTOMODIFYVARIOUSASPECTSOFTHE3DSCENEANDITSOBJECTSEACHSPACEISDIVIDEDINTOASETOFAREASANDPANELSWHICHARECONTEXTAWARETHATIS,THEYPROVIDEFUNCTIONALITYBASEDONTHESELECTEDOBJECTTYPEFOREXAMPLE,IFACAMERAISSELECTEDTHEPANELWILLDISPLAYCOMPONENTSWHICHALLOWTHEMODELERTOCHANGETHEFOCALLENGTHANDVIEWINGANGLEOFTHECAMERA,BUTTHESECOMPONENTSWILLNOTAPPEARIFANOBJECTOFANOTHERTYPEISSELECTEDFIGURE6SHOWSASCREENSHOTOFTHEBUTTONSPACEWHICHISUSEDTOEDITPROPERTIESFORAHAPTICMESHITINCLUDESUSERINTERFACEPANELSWHICHALLOWAMODELERTOCHANGETHEGRAPHICALSHADINGPROPERTIESOFTHEMESH,PERFORMSIMPLEREMESHINGOPERATIONS,ANDTOMODIFYTHEHAPTICPROPERTIESOFTHESELECTEDMESHHAMLATFOLLOWSTHECONTEXTSENSITIVEBEHAVIOROFBLENDERBYONLYDISPLAYINGTHEHAPTICEDITINGPANELWHENAPOLYGONALMESHOBJECTISSELECTEDINTHEFUTURE,THISPANELMAYBEDUPLICATEDTOSUPPORTHAPTICMODELINGFOROTHEROBJECTTYPES,SUCHASNURBSURFACESTHEBLENDERFRAMEWORKOFFERSMANYUSERINTERFACECOMPONENTSEG,BUTTONS,SLIDERS,POPUPMENUSWHICHMAYBEUSEDTOEDITTHEUNDERLYINGDATASTRUCTURESTHEHAPTICPROPERTIESFORMESHOBJECTSAREEDITABLEUSINGSLIDERSORBYENTERINGAFLOATVALUEINTOATEXTBOXLOCATEDADJACENTTOTHESLIDERWHENTHEVALUEOFTHESLIDER/TEXTBOXISCHANGED,ITTRIGGERSANEVENTINTHEBLENDERWINDOWSUBSYSTEMAUNIQUEIDENTIFIERTHATTHEEVENTISFORTHEHAPTICPROPERTYPANELANDTHEHAMLATCODESHOULDBECALLEDTOUPDATEHAPTICPROPERTIESFORTHECURRENTLYSELECTEDMESHCHAPTOVISUALRENDERINGBLENDERCURRENTLYSUPPORTGRAPHICALRENDERINGOFSCENESUSINGANINTERNALRENDERORANEXTERNALRENDEREREG,4INTHISSPIRIT,THEHAPTICRENDERERUSEDBYHAMLATHASBEENDEVELOPEDASANEXTERALRENDERERITUSESTHEOPENGLANDOPENHAPTICSTOOLKIT5TOPERFORMGRAPHICANDHAPICRENDERING,RESPECTIVELYTHE3DSCENEWHICHISBEINGMODELEDISRENDEREDUSINGTWOPASSESTHEFIRSTPASSRENDERTHESCENEGRAPHICALLY,ANDTHESECONDPASSRENDERSITHAPTICALLYTHESECONDPASSISREQUIREDBECAUSETHEOPENHAPTICSTOOLKITINTERCEPTSCOMMANDSSENDTOTHEOPENGLPIPELINEANDUSESTHEMTODISPLAYTHESCENEUSINGHAPTICRENDERINGTECHNIQUESINTHISPASS,THEHAPTICPROPERTIESOFEACHMESHOBJECTAREUSEDMUCHINTHESAMEWAYCOLORANDLIGHTINGAREUSEDBYGRAPHICALRENDERINGTHEYDEFINETHETYPEOFMATERIALFOREACHOBJECTTOSAVECPUCYCLES,THELIGHTINGANDGRAPHICALMATERIALPROPERTIESAREEXCLUDEDFROMTHEHAPTICRENDERINGPASSFIGURE7SHOWSSOURCECODEWHICHISUSEDTOAPPLYTHEMATERIALPROPERTIESDURINGTHEHAPTICRENDERINGPASSTHEHAPTICRENDERERISINDEPENDENTFROMTHEBLENDERFRAMEWORKINTHATITEXISTSOUTSIDETHEORIGINALSOURCECODEHOWEVER,ITISSTILLHEAVILYDEPENDENTONBLENDERDATASTRUCTURESANDTYPESDSCRIPTINGTHEBLENDERPYTHONBPYWRAPPEREXPOSESMANYOFTHEINTERNALDATASTRUCTURES,GIVINGTHEINTERNALPYTHONSCRIPTINGENGINEMAYACCESSTHEMSIMILARTOTHEDATASTRUCTURESUSEDFORREPRESENTINGMESHOBJECTSINTHENATIVEBLENDERFRAMEWORK,WRAPPERSALLOWUSERDEFINEDSCRIPTSTOACCESSANDMODIFYTHEELEMENTSINA3DSCENETHEHAPICPROPERTIESOFAMESHOBJECTMAYBEACCESSEDTHROUGHTHEMESHWRAPPERCLASSAHAPTICSATTRIBUTEHASBEENADDEDTOEACHOFTHESECLASSESANDACCESSEDTHROUGHTHEPYTHONSCRIPTINGSYSTEMFIGURE8SHOWSPYTHONCODETOREADTHEHAPTICPROPERTIESFROMAMESHOBJECTANDEXPORTTOAFILESIMILARCODEISUSEDTOIMPORT/EXPORTHAMLSCENESFROM/TOFILESANIMPORTSCRIPTALLOWS3DSCENESTOBEREADFROMAHAMLFILEANDREPRODUCEDINTHEHAMLATAPPLICATIONEXPORTSCRIPTALLOWS3DSCENESTOBEWRITTENTOAHAMLFILE,INCLUDINGHAPTICPROPERTIES,ANDUSEDINOTHERHAMLAPPLICATIONSTHEBPYWRAPPERSALSOEXPOSETHEBLENDERWINDOWINGSYSTEMFIGURE9SHOWSAPANELWHICHAPPEARSWHENTHEUSEREXPORTSA3DSCENETOTHEHAMLFILEFORMATITALLOWSTHEUSERTOSPECIFYSUPPLEMENTARYINFORMATIONABOUTTHEAPPLICATIONSUCHASADESCRIPTION,TARGETHARDWARE,ANDSYSTEMREQUIREMENTSTHESEAREFIELDSDEFINEDBYTHEHAMLSPECIFICATION2ANDAREINCLUDEDWITHTHEAUTHOREDSCENEASPARTOFTHEHAMLFILEFORMATUSERINTERFACECOMPONENTSDISPLAYEDONTHISPANELAREEASILYEXTENDEDTOAGREEWITHTHEFUTUREREVISIONSOFHAMLTHECURRENTVERSIONOFHAMLATSHOWSTHATAUNIFIEDMODELINGTOOLFORGRAPHICSANDHAPTICSISPOSSIBLEPROMISINGLY,THEFEATURESFORMODELINGHAPTICPROPERTIESHAVEBEENINTEGRATEDSEAMLESSLYINTOTHEBLENDERFRAMEWORK,WHICHINDICATESITWASAGOODCHOICEASAPLATFORMFORDEVELOPMENTOFTHISTOOLBLENDERSMODULARARCHITECTUREWILLMAKEFUTUREADDITIONSTOITSFRAMEWORKVERYSTRAIGHTFORWARDCURRENTLY,HAMLATSUPPORTSBASICFUNCTIONALITYFORMODELINGANDRENDERINGHAPTOVISUALAPPLICATIONSSCENESMAYBECREATED,EDITED,PREVIEWED,ANDEXPORTEDASPARTOFADATABASEFORUSEINBYOTHERHAPTOVISUALAPPLICATIONS,SUCHASTHEHAMLPLAYER6HOWEVER,THEREISROOMFORGROWTHANDINTHEREAREMANYMOREWAYSWECANCONTINUELEVERAGINGEXISTINGBLENDERFUNCTIONALITYASPERFUTUREWORK,WEPLANTOEXTENDHAMLATTOINCLUDESUPPORTFOROTHERHAPTICPLATFORMSANDDEVICESCURRENTLY,ONLYTHEPHANTOMSERIESOFDEVICESISSUPPORTEDSINCETHEINTERACTIVERENDERERISDEPENDENTONTHEOPENHAPTICSTOOLKIT5INORDERTOSUPPORTOTHERDEVICES,ACROSSPLATFORMLIBRARYSUCHASCHAI3DORHAPTIKMAYBEUSEDTOPERFORMRENDERINGTHESELIBRARIESSUPPORTFORCERENDERINGFORALARGERANGEOFHAPTICHARDWAREFORTUNATELY,DUETOTHEMODULARITYOFOURIMPLEMENTATION,ONLYTHEINTERACTIVEHAPTICRENDERINGCOMPONENTNEEDBEALTEREDFORTHESECHANGESINADDITIONTOSUPPORTMULTIPLEHARDWAREPLATFORMS,AUSERINTERFACECOMPONENTWHICHALLOWSTHESELECTIONANDCONFIGURATIONOFHAPTICDEVICESWILLBEIMPORTANTMOSTLIKELY,THISWILLBEADDEDASPARTOFTHEUSERPREFERENCESPANELINBLENDERADDINGSUPPORTFORHAPTICDEVICESASPARTOFEDITINGASKSISALSOAPLANNEDFEATURETHISWILLALLOWTHEODELERTOMODIFYTHESHAPE,LOCATION,ANDOTHERPROPERTIESONINSCENEOBJECTSFOREXAMPLE,THESCULPTINGODEINBLENDERALLOWSAUSERTOMANIPULATETHEGEOMETRYFA3DOBJECTUSINGANATURALINTERFACE,SIMILARTOESHAPINGAPIECEOFCLAYHAMLATWILLBUILDONTHISECHNOLOGYBYALLOWINGTHEMODELERTOMANIPULATETHEIRTUALCLAYUSINGHIGHDOFHAPTICINTERFACESREFERENCES1BLENDERORGANIZATION,“BLENDEROFFICIALWEBSITE,“HTTP/WWWLWFREECNSEPTEMBER20072FRELFAR,MEID,MOROZCO,AELSADDIK,“HAPTICAPPLICATIONMETALANGUAGE,“DSRT,MALAGA,SPAIN,2006CON3BLENDERORGANIZATION,“BLENDERARCHITECTURE,“BERGRASP,SEPTEMBER20074YAFRAY,“FREERAYTRACINGFORTHEMASSES,SEPTEMBER20075SENSABLETECHNOLOGIES,INC“OPENHAPTICSTOOLKIT,“,SEPTEMBER20076MEID,MMANSOUR,RIGLESIAS,AELSADDIK“ADEVICEINDEPENDENTHAPTICPLAYER,“IEEEINTLCONFERENCEONVIRTUALENVIRONMENTS,HUMANCOMPUTERINTERFACES,ANDMEASUREMENTSYSTEMSVECIMS2007,ITALY,20077FCONTI,FBARBAGLI,DMORRIS,CSEWELL,“CHAIANOPENSOURCELIBRARYFORTHERAPIDDEVELOPMENTOFHAPTICSCENES,“DEMOPAPERATIEEEWORLDHAPTICS,PISA,ITALY,MARCH2005触觉音频视觉环境和应用程序IEEE国际研讨会加拿大渥太华2007年10月扩展搅拌机开发仿真创作工具谢尔登安德鲁斯、穆罕默德多媒体通信研究实验室的MCRLAB学校信息技术和工程加拿大渥太华大学摘要在本文中,我们目前的工作是拓展一个众所周知的三
温馨提示:
1: 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
2: 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
3.本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
5. 人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对用户上传分享的文档内容本身不做任何修改或编辑,并不能对任何下载内容负责。
6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
提示  人人文库网所有资源均是用户自行上传分享,仅供网友学习交流,未经上传用户书面授权,请勿作他用。
关于本文
本文标题:JS500混凝土搅拌机设计【说明书+CAD】
链接地址:https://www.renrendoc.com/p-10049021.html

官方联系方式

2:不支持迅雷下载,请使用浏览器下载   
3:不支持QQ浏览器下载,请用其他浏览器   
4:下载后的文档和图纸-无水印   
5:文档经过压缩,下载后原文更清晰   
关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服 - 联系我们

网站客服QQ:2881952447     

copyright@ 2020-2025  renrendoc.com 人人文库版权所有   联系电话:400-852-1180

备案号:蜀ICP备2022000484号-2       经营许可证: 川B2-20220663       公网安备川公网安备: 51019002004831号

本站为文档C2C交易模式,即用户上传的文档直接被用户下载,本站只是中间服务平台,本站所有文档下载所得的收益归上传人(含作者)所有。人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。若文档所含内容侵犯了您的版权或隐私,请立即通知人人文库网,我们立即给予删除!