Inventor二次开发入门.docx

Inventor二次开发入门.docx

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Inventor二次开发入门

Inventor二次开发入门

课程1：

开始接触InventorAPI，用VB.NET写一个最简单的插件，实现选择集的隐藏

在本课中，你将开始写一个使用AutodeskInventorAPI基于VB.NET隐藏所选组件的应用程序。

演示视频（英文）

演示代码

lesson1_vb-net.zip（zip-49Kb）

lesson1_c-sharp.zip（zip-73Kb）

根据步骤来创建你的第一个插件

1.LaunchtheVisualBasicExpressdevelopmentenvironment:

OpenVisualBasic2010ExpressusingtheWindowsStartmenu,selectingAllPrograms,thenMicrosoftVisualStudio2010Express,andthenMicrosoftVisualBasic2010Express.Note:

YoucanalsouseVisualBasic2008Expresswiththisguide.Projectsforboth2010and2008areprovided.

2.Openaclasslibraryproject:

InsideVisualBasicExpress,ontheFilemenu,clickOpenProject.Navigatetothesubfolderofthesupportingmaterialyoudownloadedatthetopofthisguidecalledlesson1_VisualExpress2010andopentheVB.NETprojectcontainedwithinitbyselectingtheprojectfileMyFirstInventorPlugin_Lesson1.vbproj.

3.Openthecode:

Intheopenprojectyouwillseeaformwithonebutton（ifyoudon’tseetheForm,clickonForm1.vbintheSolutionExplorerframeintheupperrighthandside）.RightclickonForm1intheSolutionExplorerandselectViewCodeorjustdoubleclickontheForm.

4.Addthecode:

Inthecodewindow,typethecodebelowintotheSubButton1_Click.（Thisiswhatrunswhenthebuttonisclicked.） Youmayneedtoscrolldowntowardsthebottomofthecodetofindtheplacetoaddthebelowcode,lookingforthewords‘AddcodeforLesson1here’. TogetthefullexperienceofdevelopingwithVisualBasicExpress–includingtheuseoffeaturessuchasIntelliSense–werecommendyoutypethecodefromthisguideratherthancopyingandpastingit.Thatsaid,ifconstrainedfortimeyoucanalsocopyandpasteintotheVisualBasicExpresscodewindow,althoughthiswillreducetheexperienceyougainfromworkingwiththecodedirectly. 

If_invApp.Documents.Count=0Then

  MsgBox（"NeedtoopenanAssemblydocument"）

 Return

EndIf

If_invApp.ActiveDocument.DocumentType<>_

DocumentTypeEnum.kAssemblyDocumentObjectThen

 MsgBox（"NeedtohaveanAssemblydocumentactive"）

 Return

EndIf

DimasmDocAsAssemblyDocument

asmDoc=_invApp.ActiveDocument

IfasmDoc.SelectSet.Count=0Then

 MsgBox（"NeedtoselectaPartorSubAssembly"）

 Return

EndIf

DimselSetAsSelectSet

selSet=asmDoc.SelectSet

Try

 DimcompOccAsComponentOccurrence

 DimobjAsObject

 ForEachobjInselSet

   compOcc=obj

   Debug.Print（compOcc.Name）

   compOcc.Visible=False

 Next

CatchexAsException

 MsgBox（"IstheselecteditemaComponent?

"）

 MsgBox（ex.ToString（））

 Return

EndTry

5.Savethefile:

OntheFilemenu,clickSaveAll.

6.Buildtheproject:

Thecodeyouhavewrittenisinhumanreadableform.Tomakethecodereadablebyacomputer,youwillneedtotranslateitor“build”it.

InsideVisualBasicExpress,inthe Debug menu,click BuildSolution tocompileandbuildyourplug-in. The“BuildSuccess”messageshowsinstatusbaroftheVisualBasicExpresswindowifthecodeissuccessfullybuilt.

That’sit!

Youhavejustwrittenyourfirstplug-inforAutodeskInventor.Let’sruntheplug-intoseewhatitdoes.

RunningthePlug-in

1.StartAutodeskInventor.（Note:

Whentheplug-inisrunitwillstartanewsessionofInventorifoneisnotalreadyopen.）

2.CreateoropenanexistingInventorassembly:

EitherunzipthefileClutch_Bell_Simplified.zip,andopentheClutch_Bell_Simplified.iamassemblyorwithinInventormakesureyouhaveanassemblyofyourchoosingactive. ThereareseveraltypesofdocumentthatcanbecreatedorworkedwithinsideInventor.ThemostcommonlyuseddocumenttypesarePart（.ipt）,Assembly（.iam）andDrawing（.idw）.OpenanewassemblyandplacesomepartsusingthestandardInventoruser-interface.

3.Runyourplug-inwithInventorandallowtheplug-intocommunicatewithInventor:

TomakeVisualBasicExpressexecutethecodeyouhaveentered,selectStartDebuggingontheDebugmenu（youcanusetheF5keyorclickonthegreenarrow–whichlookslikea“play”button–ontheDebuggingtoolbar）.Thiswillcauseyourformtobedisplayed.YoumayneedtominimizeVBExpresstoseeboththeformandInventor.

4.Workwiththeplug-in:

Selectoneormore（byusingtheCtrlkey）componentsintheassemblythatisactiveinsideInventorandthenclickButton1ontheformtoexecuteyourcodeandhidetheselectedcomponents.

5.Tore-displaytheinvisiblecomponentsusetheInventorAssemblybrowser（youcanidentifythemviatheircomponenticons,whichshouldnowbegrayedout）. Inthebrowser,right-clickontheinvisiblecomponentsandpickVisibility,makingthemvisibleonceagain.

Congratulations!

Youhavejustwrittenyourfirstplug-inforAutodeskInventor.YouwillbereviewingthecodeindetailinLesson3.

Beforeyoumoveontothenextlessons,letusgobacktosomeofthethingsweskippedoverearlier,startingwithbasicconceptsaboutprogramming,andthebenefitsitcanbringtoyourday-to-daywork.

AdditionalTopics

IntroductiontoProgramming

TheVB.NETcodeyouhavejustexecutedthathidestheselectedcomponentsisonly30lineslongandmorethanhalfofthecodethatyouenteredintotheprojectisdoingerrorchecking.Thecodethatactuallydoestheworkcanbenarroweddowntothesefewlinesofcode:

DimasmDocAsAssemblyDocument

asmDoc=_invApp.ActiveDocument

DimselSetAsSelectSet

selSet=asmDoc.SelectSet

DimcompOccAsComponentOccurrence

DimobjAsObject

ForEachobjInselSet

compOcc=obj

compOcc.Visible=False

Next

Asyoucansee,asmallamountofcodecangoalongwaytosimplifyworkingwithInventor.Softwareprogrammingallowsyoutocapturethelogicofaparticularmanualprocedureonceandthenreapthebenefitsoverandoveragain,everytimeyouwanttoperformthisfunctionality.

WhatisProgramming?

Asimpleanswertothisquestionis:

Computerprogrammingistheprocessofcreatingasequenceofinstructionstotellthecomputertodosomething.Youcanlookatyourprogramasasequenceofinstructions.Duringthecourseoftheupcominglessons,youwilllookatthevariouslinesandblocksofcodeinthecontextofbeinginstructionsforacomputer.

Ifyouweretoexplainwhatcomputersaretoayoungchild,youmightsay:

acomputerisatoolthatfollowsinstructionsyouprovide.Programmingisonewayofgivinginstructionstothecomputer.Internally,acomputerseestheseinstructionsencodedasaseriesofnumbers（alsocalledmachinecode）.Thehuman-readableinstructionsyousawatthebeginningofthislessonarecalledsourcecodeandthecomputerconvertstheseinstructionsintomachinecodewhichitcanthenreadandexecute.Asequenceofsuchinstructions（orcode）,writtentoperformaspecifictask,iscalledaprogramandacollectionofsuchprogramsandrelateddataiscalledsoftware.AutodeskInventorisonesuchsoftwareproduct.

Sourcecodecanbewrittenindifferentlanguages,justashumansusedifferentlanguagestocommunicatebetweenourselves.ThelanguageyouwillbeusinginthisguideiscalledVisualBasic.NET（VB.NET）.

WhatisanAPI?

APIistheacronymforApplicationProgrammingInterface:

thewayasoftwareprogrammercancommunicatewithasoftwareproduct.Forinstance,theInventorAPIisthewayprogrammerscanworkwithInventor,andestablisheswhatfunctionalityasoftwareprogrammercanusewithinInventor.SuchastheInventorAPIallowsyoutowriteinstructionsforInventortoexecuteoneaftertheother.

Puttingthisslightlydifferently:

commercialsoftwarecompanies,suchasAutodesk,oftendistributeasetoflibrariesthatyoucanuseinyourownprogramtointeractwithaparticularsoftwareproduct,suchasAutodeskInventor,andextenditsfunctionality.Thissetoflibrariesisknownasthesoftwareproduct’sAPI.

ThetypeofprogramyouwritetointeractwithasoftwareproductandextenditsfunctionalitywilldependuponhowtheAPIhasbeendesignedandwhathasbeenexposed（throughAPIs）foryoutoworkwith.

WhatisaPlug-in?

Asoftwareplug-inisatypeofprogrammodule（orfile）thataddsfunctionalitytoasoftwareproduct,usuallyintheformofacommandautomatingataskorsomecustomizationoftheproduct’sbehavior.Whenyoutalkaboutaplug-inforInventor–andyouwillalsohearthetermAddInorApplicationusedforthisproduct–wemeanamodulecontainingcodethatmakesuseoftheInventorAPI.ThecodecanconnecttoInventortoautomatetasks,orbeloadedbyInventorandusedtoadjustitsbehaviorofInventorundercertainconditions,suchaswhenaparticularcommandisexecutedbytheuseroftheplug-in.

Forterminologypurposes,anInventorAddInwouldalsobeconsideredaplug-in.AnAddInisaspecialkindofplug-inthatautomaticallyloadswhenInventorisstarted,hashighperformanceandappearstotheusertobepartofInventor..

课程2：

帮助了解VisualStudio编程环境以与基本需要熟悉的方面

Inthepreviouslesson,yousawhowyoucanincreaseproductivityinAutodeskInventorbyimplementingaplug-inbuiltfromasmallamountofVB.NETcode.

YouwillprobablyhaveheardthetermsCOMand.NETfromLesson1withreferencetoprogrammingwithInventor.BothCOMand.NETaretechnologiesthatenablecommunicationbetweensoftware:

ifyouareinterestedinlearningmore,youwillfindinformationintheAdditionalTopicssectionhere.

Youwillnowlookmorecloselyatwhathappenedwhenyouexecutedthecodeinthepreviouslesson.

代码示例

lesson2_vb-net.zip（zip-19Kb）

lesson2_c-sharp.zip（zip-23Kb）

Whatdoesitmeanto“build”code?

ThecodethatyoutypedintoVisualBasicExpressinLesson1wasasetofhuman-readableinstructions（sourcecode）thatneededtobeconvertedintocodethatcould