CATIA CAA二次開(kāi)發(fā)開(kāi)發(fā)教材

1/84CATIACAA開(kāi)發(fā)教材TOC\o"1-1"\t"編號(hào)標(biāo)題1,附錄標(biāo)識(shí),1,編號(hào)標(biāo)題2,1,編號(hào)標(biāo)題3"1進(jìn)入CAA開(kāi)發(fā)世界 31.1CAA的應(yīng)用 31.2CAA開(kāi)發(fā)流程界面介紹 31.3一個(gè)簡(jiǎn)單的批處理程序 8基本思路： 8主函數(shù)返回值的含義： 8運(yùn)行方式： 9代碼開(kāi)發(fā)詳解： 9創(chuàng)建進(jìn)程 9創(chuàng)建新文檔 9訪問(wèn)文檔內(nèi)部結(jié)構(gòu) 10保存文檔 11從進(jìn)程移除文檔 11關(guān)閉進(jìn)程 111.4常用插件說(shuō)明 122CAA對(duì)象模型 132.1整體架構(gòu) 132.2重點(diǎn)模型之零件設(shè)計(jì) 152.2.1零件的復(fù)制、剪切、粘貼。 152.2.2復(fù)制、粘貼功能的主函數(shù)介紹 242.3重點(diǎn)模型之曲面設(shè)計(jì) 312.3.1創(chuàng)建放樣曲面 312.3.2將曲面feature轉(zhuǎn)換為Datum（CAAGsiDatum.m） 382.3.3創(chuàng)建Body、GS、OGS(CAAGsiBodyGSAndOGS.m) 432.4重點(diǎn)模型之二維圖 563可視化、交互程序開(kāi)發(fā) 573.1.1Workshop或Workbench的創(chuàng)建 573.1.2Addin的創(chuàng)建 633.1.3工具條、菜單的建立和顯示 663.2命令的響應(yīng) 683.2.1Command插入 683.2.2Dialog的插入 693.3窗體控件 723.4鼠標(biāo)事件交互選擇 773.5關(guān)于窗口/界面定義、命令響應(yīng)、系統(tǒng)組織的說(shuō)明 824典型實(shí)例詳解 84CATIA二次開(kāi)發(fā)進(jìn)入CAA開(kāi)發(fā)世界CAA的應(yīng)用CATIA能提供的功能，通常來(lái)說(shuō)，都可以通過(guò)CAA編程實(shí)現(xiàn)。另外，還可以對(duì)CATIA系統(tǒng)功能進(jìn)行擴(kuò)展，完成CATIA通用模塊不能實(shí)現(xiàn)的工作。CAA開(kāi)發(fā)主要有兩種模式：批處理模式和交互模式。批處理程序以磁盤上存儲(chǔ)的CATIA物理文件為處理對(duì)象，例如：在程序內(nèi)部打開(kāi)一個(gè)二維圖文件CATDrawing，對(duì)工程圖內(nèi)的頁(yè)面和視圖等信息進(jìn)行各種處理，最后在程序內(nèi)部關(guān)閉文件，結(jié)束操作；或者在程序內(nèi)部打開(kāi)一個(gè)曲面文件，對(duì)文件內(nèi)的兩個(gè)曲面利用函數(shù)求交線，最后將求得的交線添加到結(jié)構(gòu)樹(shù)上，并關(guān)閉文件，結(jié)束操作。交互程序?yàn)橛脩籼峁┙换ゲ僮鹘缑妫脩粜鑼㈤_(kāi)發(fā)的插件加入catia標(biāo)準(zhǔn)配置，啟動(dòng)catia后通過(guò)新創(chuàng)建的菜單、工具條、對(duì)話框等，為用戶提供交互手段。例如：用戶在catia的操作界面內(nèi)選擇2個(gè)零件，然后點(diǎn)擊命令按鈕，系統(tǒng)檢查這兩個(gè)零件是否有干涉，并彈出對(duì)話框顯示檢查結(jié)果。下面先對(duì)基本開(kāi)發(fā)流程做介紹，然后對(duì)批處理方式進(jìn)行示例。CAA開(kāi)發(fā)流程界面介紹建立工程。建立Framework。（3）添加預(yù)定義工作區(qū)，以搜索開(kāi)發(fā)所需要的API資源。點(diǎn)擊“CAAV5Workspace”“LocatePrerequisiteWorkspace…”，添加CATIA的安裝路徑。注意此路徑為Intele_a文件夾的上層路徑。，如果要引用其他Workspace的接口（Interface），也可以在這里指定此Workspace的路徑。點(diǎn)擊“Add”添加，如下圖所示：（4）插入Module。設(shè)置當(dāng)前module，并加入CAAV5類。在類文件內(nèi)，添加功能代碼。一個(gè)簡(jiǎn)單的批處理程序目的：利用批處理的模式創(chuàng)建一個(gè)新的part文檔。（見(jiàn)工程1）基本思路：Create_Session:Createsanewsession,necessaryinabatchprogramNew:Createsanewdocumentofastandardtype("Part")SaveAs:SavesthedocumentunderanewnameRemove:RemovesthedocumentfromthesessionDelete_Session:Deletesthesession主函數(shù)返回值的含義：ReturnErrors://1-ERRORincreatingthesession2-ERRORincreatinganewdocument3-ERRORinQueryInterface4-ERRORinretrievingtherootcontainer5-ERRORinsavingthedocument6-ERRORinremovingthedocument7-ERRORindeletingthesession運(yùn)行方式：mkrun-c"CAAOmbNewDocE:\\output.CATPart"代碼開(kāi)發(fā)詳解：添加頭文件//ObjectModelerBaseFramework#include"CATSessionServices.h"http://Create_SessionandDelete_Session#include"CATDocumentServices.h"http://New,SaveAsandRemove#include"CATInit.h"http://GetRootContainer#include"CATDocument.h"http://QueryInterface-CATInit//Otherincludes#include<iostream.h>//Printtothescreenduringexecutionintmain(intargc,char*argv[])創(chuàng)建進(jìn)程在程序開(kāi)始之初，每個(gè)批處理程序都應(yīng)使用全局函數(shù)Create_Session創(chuàng)建一個(gè)進(jìn)程。一個(gè)批處理程序內(nèi)有且僅有一個(gè)進(jìn)程。char*sessionName="CAA2_Sample_Session";CATSession*pSession=NULL;HRESULTrc=::Create_Session(sessionName,pSession);if((FAILED(rc))||(NULL==pSession)){cout<<"ERRORincreatingsession"<<endl<<flush;return1;}創(chuàng)建新文檔采用CATDocumentServices的一個(gè)靜態(tài)方法::New來(lái)定義和初始化一個(gè)文檔，利用獲取的文檔指針pDoc可以對(duì)文檔做一系列操作。CATDocument*pDoc=NULL;rc=CATDocumentServices::New("CATPart",pDoc);if(NULL!=pDoc)cout<<"NewdocumentcreatedOK"<<endl<<flush;else{cout<<"ERRORincreatingNewdocument"<<endl<<flush;return2;}訪問(wèn)文檔內(nèi)部結(jié)構(gòu)訪問(wèn)或者更改文檔，需要通過(guò)CATInit::GetRootContainer方法獲取其RootContainer，然后再進(jìn)行系列操作。對(duì)一個(gè)指針對(duì)象訪問(wèn)某個(gè)屬性時(shí)，常用的方法基本可歸納為兩類：（一）、調(diào)用指針對(duì)象的成員函數(shù)。（二）、直接查詢指針對(duì)象的相關(guān)接口；基本格式如下：rc=pDoc->QueryInterface(IID_CATInit,(void**)&piInitOnDoc)。CATInit*piInitOnDoc=NULL;rc=pDoc->QueryInterface(IID_CATInit,(void**)&piInitOnDoc);if(FAILED(rc)){cout<<"ERRORinQueryInterfaceonCATInitfordoc"<<endl<<flush;return3;}constCATIdentidCATIContainer="CATIContainer";CATIContainer*piRootContainer=NULL;piRootContainer=(CATIContainer*)piInitOnDoc->GetRootContainer(idCATIContainer);if(NULL==piRootContainer){cout<<"ERRORinGetRootContainer"<<endl<<flush;return4;}保存文檔保存函數(shù)有兩個(gè)參數(shù)，參數(shù)1代表文檔指針；參數(shù)2包含文檔保存路徑和文檔名稱。此外，如果有必要，還可以指定文檔的保存格式。rc=CATDocumentServices::SaveAs(*pDoc,argv[1]);if(SUCCEEDED(rc))cout<<"DocumentsavedOK"<<endl<<flush;else{cout<<"ERRORinsavingdocument"<<endl<<flush;return5;}從進(jìn)程移除文檔當(dāng)程序里面不再對(duì)文檔進(jìn)行操作時(shí)，在保證文檔已經(jīng)保存的前提下，應(yīng)將移除文檔。rc=CATDocumentServices::Remove(*pDoc);if(SUCCEEDED(rc))cout<<"DocumentremovedOK"<<endl<<flush;else{cout<<"ERRORinremovingdocument"<<endl<<flush;return6;}關(guān)閉進(jìn)程開(kāi)發(fā)結(jié)束時(shí)需調(diào)用全局函數(shù)Delete_Session，關(guān)閉進(jìn)程。rc=::Delete_Session(sessionName);if(SUCCEEDED(rc))cout<<"SessiondeletedOK"<<endl<<flush;else{cout<<"ERRORindeletingsession"<<endl<<flush;return7;}常用插件說(shuō)明分別對(duì)應(yīng)：對(duì)話框、響應(yīng)命令、workbench、類、工具條。

CAA對(duì)象模型整體架構(gòu)可以對(duì)CATIA的以下方面根據(jù)需求進(jìn)行二次開(kāi)發(fā)：MechanicalDesignMechanicalModeler&SketcherPartDesignAssemblyDesignDrafting3DFunctionalTolerancing&AnnotationStructureAerospaceSheetMetalShapeDesign&StylingMechanicalModeler&SketcherGenerativeShapeDesignProductSynthesis&KnowledgewareDMUNavigatorDMUSpaceAnalysisDMUKinematicsSimulatorProductFunctionDefinitionProductEngineeringOptimizerKnowledgeExpertAnalysisAnalysisModelerGenerativeStructuralAnalysisMachiningNCReviewPrismaticMachiningLatheMachiningSurfacicMachiningAdvancedMachiningEquipment&SystemsElectricalModelerSchematicsPlatformModelerDistributiveSystemsSpatialLayoutSystemsLayoutElectricalLibraryElectricalHarnessInstallationElectricalWireRoutingElectricalFlatteningElectricalSystemFunctionalDefinitionSystemsDiagramsStructurePreliminaryLayout

重點(diǎn)模型之零件設(shè)計(jì)零件的復(fù)制、剪切、粘貼。功能函數(shù)介紹程序?qū)⒔榻B如何對(duì)一個(gè)pad零件應(yīng)用復(fù)制、剪切、粘貼。有關(guān)零件處理的程序中經(jīng)常用到的一些.h在這里列舉，供開(kāi)發(fā)參考：//PartInterfacesFramework#include"CATIPrtProfile.h"http://neededtoaccesstheprofileattributeoftheUserPad//SketcherInterfacesFramework#include"CATISketch.h"http://neededtofindasketchinapathelement//MecModInterfacesFramework#include"CATIPrtPart.h"http://neededtocheckvalidityofpastedelement//VisualizationFramework#include"CATPathElement.h"http://neededtocheckvalidityofpastedelement//MathematicsFramework#include"CATPlane.h"http://neededtocheckvalidityofpastedelement#include"CATMathPoint.h"http://neededtodefineanchorpoint#include"CATMathDirection.h"http://neededtodefinethenormalofthefeature//ObjectSpecsModelerFramework#include"CATISpecObject.h"http://neededtomanagetheprofile#include"CATISpecAttrAccess.h" //neededtoaccessUserpadattributes#include"CATISpecAttrKey.h" //neededtoaccessUserpadattributekeys＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃#include"CATLISTV_CATISpecObject.h"http://neededtomanagethesketchassociatedtotheprofile＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃＃//ObjectModelerBaseFramework#include"CATSession.h"http://neededtomanagesession#include"CATDocument.h"http://neededtomanagetheCATPartdocument#include"CATDocumentServices.h"http://neededtocreatethedocument#include"CATSessionServices.h"http://neededtocreatethesession#include"CATInit.h"http://neededtoaccessMechanicaldesigncontainer#include"CATICatalogManager.h"http://neededtoaccessUserPadstartup#include"CATICutAndPastable.h"http://neededtoperformCut/Copy/Pasteoperation//SketcherInterfacesFramework#include"CATISketchFactory.h"http://neededtocreatesketches#include"CATI2DWFFactory.h"http://neededtodrawthesketches#include"CATISketch.h"http://neededtomanagesketches#include"CATI2DCurve.h"http://neededtodrawthelinesofthesketches#include"CATI2DPoint.h"http://neededtoaccessthepointsofthesketches//MecModInterfacesFramework#include"CATIPrtContainer.h"http://neededtomanageMechanicalDesignfeatures//PartInterfacesFramework#include"CATIPrtFactory.h"http://neededtocreateUserPadprofile#include"CATIPrtProfile.h"http://neededtovaluateUserPadattribute//ObjectSpecsModelerFramework#include"CATISpecObject.h"http://neededtoqueryinterface#include"CATISpecAttrAccess.h" //neededtoaccessUserpadattributes#include"CATISpecAttrKey.h" //neededtoaccessUserpadattributekeys#include"CATIDescendants.h"http://neededtoaggregateUserpadattribute#include"CATICatalog.h"http://neededtoaccessUserPadstartup#include"CATCatalogFactoryServices.h"http://neededtoopenStartUpcatalog//MechanicalModelerFramework#include"CATMfDefs.h"http://neededtodefinethekeysoftheproceduralreport#include"CATIPrtProceduralView.h"http://neededtoinsertUserPadfeatureintheproceduralview#include"CATIShapeFeatureProperties.h"http://neededtotestthattheuserpasisaformfeature通過(guò)接口CATIMechanicalCCP的函數(shù)，可以判斷一個(gè)特征是否允許被復(fù)制、刪除、粘貼。其函數(shù)共6個(gè)：GiveMeYourFavoriteSpecificationsIsElementValidForPasteGetAnchorPointGetReferenceNormalCanBeDeletedCanBeCopied[1]返回用來(lái)創(chuàng)建pad用的特征列表。CATLISTV(CATISpecObject_var)CAAPriEMechanicalCCP::GiveMeYourFavoriteSpecifications()const{//RetrievestheProfileattributeoftheUserPadfeature.//CATLISTV(CATISpecObject_var)listSpec;CATISpecObject*piUserPad=NULL;HRESULTrc=((CATBaseUnknown*)this)->QueryInterface(IID_CATISpecObject,(void**)&piUserPad);if(FAILED(rc))returnlistSpec;CATISpecAttribute*piProfileAtt=piUserPad->GetAttribute("Profile");if(NULL!=piProfileAtt){CATISpecObject_varspProfile=piProfileAtt->GetSpecObject(1);piProfileAtt->Release();if(NULL_var!=spProfile){spProfile->Release();//Todecrementthereferencecount//Retrievesthesketchassociatedwiththeprofile//Thesketchisaddedinthereturnedlist//CATIPrtProfile_varspPrtProfileOnProfile(spProfile);if(NULL_var!=spPrtProfileOnProfile){CATISpecObject_varspElt=NULL_var;spPrtProfileOnProfile->GetElement(1,spElt);if(NULL_var!=spElt){listSpec.Append(spElt);}}}}piUserPad->Release();returnlistSpec;}[2]判斷是否允許粘貼，允許返回1，不允許返回0。intCAAPriEMechanicalCCP::IsElementValidForPaste(CATPathElement*ispPath)const{intvalid=0;//checkingifthereisasketchinthepathelement//CATBaseUnknown*spiSketchOnElt=ispPath->FindElement(IID_CATISketch);if(NULL!=spiSketchOnElt){spiSketchOnElt->Release();valid=1;}returnvalid;}[3]用來(lái)獲得被拷貝對(duì)象的絕對(duì)坐標(biāo)系CATMathPointCAAPriEMechanicalCCP::GetAnchorPoint()const{//RetrievestheProfileattributeoftheUserPadfeature.//CATMathPointanchorPoint;CATISpecObject*piUserPad=NULL;HRESULTrc=((CATBaseUnknown*)this)->QueryInterface(IID_CATISpecObject,(void**)&piUserPad);if(FAILED(rc))returnanchorPoint;CATISpecAttribute*piProfileAtt=piUserPad->GetAttribute("Profile");if(NULL!=piProfileAtt){CATISpecObject_varspProfile=piProfileAtt->GetSpecObject(1);piProfileAtt->Release();if(NULL_var!=spProfile){spProfile->Release();//Retrievesthesketchassociatedwiththeprofile//Thesketchisaddedinthereturnedlist//CATIPrtProfile_varspPrtProfileOnProfile(spProfile);if(NULL_var!=spPrtProfileOnProfile){intnbElt=spPrtProfileOnProfile->GetElementCount();if(1==nbElt){//Retrievesthesketchassociatedtotheprofile//CATISpecObject_varspElt;spPrtProfileOnProfile->GetElement(1,spElt);CATIMechanicalCCP_varspCCPOnElt(spElt);if(NULL_var!=spCCPOnElt){//DelegatesGetAnchorPointtothesketch//anchorPoint=spCCPOnElt->GetAnchorPoint();}}}}}piUserPad->Release();returnanchorPoint;}[4]獲得特征的法線CATMathDirectionCAAPriEMechanicalCCP::GetReferenceNormal()const{//RetrievestheProfileattributeoftheUserPadfeature.//CATMathDirectionnormal;CATISpecObject*piUserPad=NULL;HRESULTrc=((CATBaseUnknown*)this)->QueryInterface(IID_CATISpecObject,(void**)&piUserPad);if(FAILED(rc))returnnormal;CATISpecAttribute*piProfileAtt=piUserPad->GetAttribute("Profile");if(NULL!=piProfileAtt){CATISpecObject_varspProfile=piProfileAtt->GetSpecObject(1);piProfileAtt->Release();if(NULL_var!=spProfile){spProfile->Release();//Retrievesthesketchassociatedwiththeprofile//Thesketchisaddedinthereturnedlist//CATIPrtProfile_varspPrtProfileOnProfile(spProfile);if(NULL_var!=spPrtProfileOnProfile){intnbElt=spPrtProfileOnProfile->GetElementCount();if(1==nbElt){CATISpecObject_varspElt;spPrtProfileOnProfile->GetElement(1,spElt);CATIMechanicalCCP_varspCCPOnElt(spElt);if(spCCPOnElt!=NULL_var){//DelegatesGetReferenceNormaltothesketch//normal=spCCPOnElt->GetReferenceNormal();}}}}}piUserPad->Release();returnnormal;}[5]用來(lái)判斷一個(gè)特征是否允許被剪切，允許返回1，否則返回值為0。intCAAPriEMechanicalCCP::CanBeDeleted(CATListValCATISpecObject_varList)const{return1;}[6]用來(lái)判斷一個(gè)特征是否允許被拷貝。如果可以被拷貝，返回值為1，否則為0。 intCAAPriEMechanicalCCP::CanBeCopied()const { return1; }通過(guò)接口CATIShapeFeatureProperties的函數(shù)，定義實(shí)體特征的行為。這里共使用了兩個(gè)：GetPolarityGiveMeYourFavoriteSketches復(fù)制、粘貼功能的主函數(shù)介紹程序包括：CAAPriCutCopyPast.m、CAAPriCutCopyPasteMain.m。前者包含了開(kāi)發(fā)中用到的系統(tǒng)方法，后者是程序?qū)崿F(xiàn)的主函數(shù)。CAAPriCutCopyPasteMain.m包含了一個(gè)main函數(shù)，首先創(chuàng)建了一個(gè)part文檔。之后執(zhí)行復(fù)制、粘貼命令。最后將結(jié)果保存在新創(chuàng)建的part文件中。創(chuàng)建進(jìn)程，新建一個(gè)catpart文件。CATSession*pSampleSession=NULL;Create_Session("SampleSession",pSampleSession);CATDocument*pDoc=NULL;CATDocumentServices::New("CATPart",pDoc);對(duì)文檔初始化后，鎖定文檔，防止在執(zhí)行復(fù)制、粘貼、剪切操作時(shí)丟失數(shù)據(jù)，要注意在結(jié)束程序時(shí)，必須解除對(duì)文檔的鎖定。CATInit_varspInitOnDoc(pDoc);CATLockDocument((*pDoc));獲取零件結(jié)構(gòu)樹(shù)的根結(jié)構(gòu)。CATIPrtContainer*spPrtCont=(CATIPrtContainer*)spInitOnDoc->GetRootContainer("CATIPrtContainer"); 調(diào)用SketchFactory草圖模塊，為在PartBody上創(chuàng)建草圖特征做好準(zhǔn)備。CATISketchFactory_varspSketchFactOnPrtCont(spPrtCont);獲取參考平面的鏈表。CATIPrtPart_varspPart;if(spPrtCont)spPart=spPrtCont->GetPart();CATListValCATISpecObject_varspListRefPlanes=spPart->GetReferencePlanes();將XY平面作為草圖工作平面。CATISpecObject_varspSketchPlane=spListRefPlanes[1];CATISketch_varspSketch1=spSketchFactOnPrtCont->CreateSketch(spSketchPlane);定義二維圖Factory，為創(chuàng)建二維圖元素做準(zhǔn)備。CATI2DWFFactory_varspWF2DFactOnSketch1(spSketch1);定義數(shù)組，為創(chuàng)建草圖元素做準(zhǔn)備。doublept1Sk1[2]={10.,5.},pt2Sk1[2]={-10.,5.},pt3Sk1[2]={-10.,-5.},pt4Sk1[2]={10.,-5.};激活結(jié)點(diǎn)，如圖中的“草圖.1”，將進(jìn)入草圖編輯界面，創(chuàng)建相應(yīng)的二維圖元素。spSketch1->OpenEdition();創(chuàng)建直線。 CATISpecObject_varspLine1Sk1=spWF2DFactOnSketch1->CreateLine(pt1Sk1,pt2Sk1);CATISpecObject_varspLine2Sk1=spWF2DFactOnSketch1->CreateLine(pt2Sk1,pt3Sk1);CATISpecObject_varspLine3Sk1=spWF2DFactOnSketch1->CreateLine(pt3Sk1,pt4Sk1);CATISpecObject_varspLine4Sk1=spWF2DFactOnSketch1->CreateLine(pt4Sk1,pt1Sk1);創(chuàng)建曲線兩個(gè)端點(diǎn)。GetStartPoint()和GetEndPoint()可以返回點(diǎn)，也可以創(chuàng)建點(diǎn)。CATI2DCurve_varspCurveOnLine1Sk1(spLine1Sk1);spCurveOnLine1Sk1->GetStartPoint();spCurveOnLine1Sk1->GetEndPoint();CATI2DCurve_varspCurveOnLine2Sk1(spLine2Sk1);spCurveOnLine2Sk1->GetStartPoint();spCurveOnLine2Sk1->GetEndPoint();CATI2DCurve_varspCurveOnLine3Sk1(spLine3Sk1);spCurveOnLine3Sk1->GetStartPoint();spCurveOnLine3Sk1->GetEndPoint();CATI2DCurve_varspCurveOnLine4Sk1(spLine4Sk1);spCurveOnLine4Sk1->GetStartPoint();spCurveOnLine4Sk1->GetEndPoint();結(jié)束草圖編輯。spSketch1->CloseEdition(); 利用剛剛創(chuàng)建的草圖創(chuàng)建凸臺(tái)，通過(guò)Update添加到結(jié)構(gòu)樹(shù)。CATISpecObject_varspUserPad1=CreateUserPad(spPrtCont,spSketch1);spUserPad1->Update();將當(dāng)前結(jié)果保存到文檔1中。HRESULTboolSave=E_FAIL;char*nomPart1=iArgv[1];boolSave=CATDocumentServices::SaveAs(*pDoc,nomPart1);接下來(lái)創(chuàng)建第二個(gè)草圖，完成復(fù)制、剪切等功能。以YZ平面做為參考平面。CATISpecObject_varspSketchPlane2=spListRefPlanes[2];CATISketch_varspSketch2=spSketchFactOnPrtCont->CreateSketch(spSketchPlane2);CATI2DWFFactory_varspWF2DFactOnSketch2(spSketch2);doublept1Sk2[2]={15.,5.},pt2Sk2[2]={25.,5.},pt3Sk2[2]={25.,25.},pt4Sk2[2]={15.,25.};打開(kāi)草圖結(jié)點(diǎn)，進(jìn)入二維圖編輯界面，創(chuàng)建直線。spSketch2->OpenEdition();CATISpecObject_varspLine1Sk2=spWF2DFactOnSketch2->CreateLine(pt1Sk2,pt2Sk2);CATISpecObject_varspLine2Sk2=spWF2DFactOnSketch2->CreateLine(pt2Sk2,pt3Sk2);CATISpecObject_varspLine3Sk2=spWF2DFactOnSketch2->CreateLine(pt3Sk2,pt4Sk2);CATISpecObject_varspLine4Sk2=spWF2DFactOnSketch2->CreateLine(pt4Sk2,pt1Sk2);創(chuàng)建直線的兩個(gè)端點(diǎn)。CATI2DCurve_varspCurveOnLine1Sk2(spLine1Sk2);spCurveOnLine1Sk2->GetStartPoint();spCurveOnLine1Sk2->GetEndPoint();CATI2DCurve_varspCurveOnLine2Sk2(spLine2Sk2);spCurveOnLine2Sk2->GetStartPoint();spCurveOnLine2Sk2->GetEndPoint();CATI2DCurve_varspCurveOnLine3Sk2(spLine3Sk2);spCurveOnLine3Sk2->GetStartPoint();spCurveOnLine3Sk2->GetEndPoint();CATI2DCurve_varspCurveOnLine4Sk2(spLine4Sk2);spCurveOnLine4Sk2->GetStartPoint();spCurveOnLine4Sk2->GetEndPoint();結(jié)束草圖編輯。spSketch2->CloseEdition();檢查基于草圖1的凸臺(tái)，為執(zhí)行拷貝、粘貼做準(zhǔn)備。CATIShapeFeatureProperties*pShapeFeaturePropertiesOnUserPad1=NULL;HRESULThr=spUserPad1->QueryInterface(IID_CATIShapeFeatureProperties,(void**)&pShapeFeaturePropertiesOnUserPad1);if(SUCCEEDED(hr)){intContFeat=pShapeFeaturePropertiesOnUserPad1->IsAContextualFeature();if(1==ContFeat)return5;intFormFeat=pShapeFeaturePropertiesOnUserPad1->IsAFreeFormFeature();if(0==FormFeat)return5;pShapeFeaturePropertiesOnUserPad1->Release();pShapeFeaturePropertiesOnUserPad1=NULL;執(zhí)行拷貝功能，將基于草圖1的數(shù)據(jù)，復(fù)制到草圖2上。CATICutAndPastable_varspStartCAPOnPrtCont(spPrtCont);創(chuàng)建草圖2的PathElement列表，在里面添加所需的元素。CATLISTV(CATBaseUnknown_var)listTargets;if(spSketch2!=NULL_var) {CATPathElement*pathTarget=newCATPathElement((CATISketch*)spSketch2);pathTarget->AddFatherElement(CATISpecObject_var(spSketch2)->GetFather());listTargets.Append(pathTarget);pathTarget->Release(); }將凸臺(tái)1作為拷貝源，添加到列表。CATLISTV(CATBaseUnknown_var)listObjectsToCopy;listObjectsToCopy.Append(spUserPad1);判斷對(duì)象是否可以提取特征用來(lái)執(zhí)行拷貝功能。如果有可提取的對(duì)象，返回值為1；否則為0。CATLISTV(CATBaseUnknown_var)listObjectsAlreadyInBoundary;intresultat=spStartCAPOnPrtCont->BoundaryExtract(listObjectsAlreadyInBoundary,&listObjectsToCopy,NULL);創(chuàng)建粘貼板數(shù)據(jù)。CATBaseUnknown_varspEltCopy=spStartCAPOnPrtCont->Extract(listObjectsAlreadyInBoundary,NULL);在粘貼板的源對(duì)象上，檢測(cè)可以做粘貼操作的對(duì)象列表。CATICutAndPastable_varspCAPOnEltCopy(spEltCopy);CATLISTV(CATBaseUnknown_var)listObjects;intresultat2=spCAPOnEltCopy->BoundaryExtract(listObjects,NULL,NULL);創(chuàng)建執(zhí)行拷貝功能的操作對(duì)象。CATICutAndPastable_varspEndCAPOnPrtCont(spPrtCont);將源對(duì)象拷貝到目標(biāo)對(duì)象。CATLISTV(CATBaseUnknown_var)spFinalObject=spEndCAPOnPrtCont->Paste(listObjects,&listTargets,NULL);更新結(jié)構(gòu)樹(shù)顯示。CATISpecObject_varspSpecOnPart(spPart);if(NULL_var!=spSpecOnPart)spSpecOnPart->Update();對(duì)執(zhí)行了拷貝、粘貼等操作的結(jié)果文件保存在文檔2中。boolSave=E_FAIL;char*nomPart2=iArgv[2];boolSave=CATDocumentServices::SaveAs(*pDoc,nomPart2);解鎖文檔、移除文檔、關(guān)閉進(jìn)程。CATUnLockDocument((*pDoc));boolSave=CATDocumentServices::Remove(*pDoc);pDoc=NULL;boolSave=::Delete_Session("SampleSession");

重點(diǎn)模型之曲面設(shè)計(jì)創(chuàng)建放樣曲面程序模塊的開(kāi)發(fā)目標(biāo)是創(chuàng)建下圖所示的曲面，基本步驟是：首先創(chuàng)建線框元素（Point,Plane,Circle），然后用Sweep,Loft等方法創(chuàng)建外形曲面。運(yùn)行方式：程序需要指定一個(gè)參數(shù)，用于保存生成曲面的part。通過(guò)程序開(kāi)發(fā)，掌握以下知識(shí)：（1）創(chuàng)建part文檔。（2）創(chuàng)建GSMTool并設(shè)置為當(dāng)前狀態(tài)。（3）創(chuàng)建點(diǎn)、線、面、圓、掃掠、放樣。（4）保存part文檔。初始化－－創(chuàng)建進(jìn)程、新文檔在本工程里定義了一個(gè)工具模塊CAAGsiUserTools，有關(guān)曲面設(shè)計(jì)的一些常用工具均在里面定義，使用時(shí)，只需調(diào)用工具模塊的一個(gè)對(duì)象，即可調(diào)用相應(yīng)的設(shè)計(jì)工具。程序首先檢查輸入?yún)?shù)的合法性，然后調(diào)用工具模塊的Init方法，完成：創(chuàng)建進(jìn)程、創(chuàng)建新文檔兩項(xiàng)任務(wù)。intRetCode=0;HRESULTrc=S_OK;char*pPartName=NULL;pPartName=iArgv[1];CAAGsiUserToolsCAAGsiObjTool;char*pSessionName="CAA2SampleSession";rc=CAAGsiObjTool.Init(pSessionName);創(chuàng)建openbody＆GSMTool創(chuàng)建一個(gè)openbody，用于容納新創(chuàng)建的幾何圖形，創(chuàng)建GSM工具并設(shè)置為當(dāng)前對(duì)象，用來(lái)創(chuàng)建所有的特征。CATLISTV(CATISpecObject_var)aObjectParameters;intsetAsCurrent=1;intCreationLocation=0;intTypeOfGeometricalSet=pTypeOfTool;CATIGSMTool_varspTool=CAAGsiObjTool.CreateGSMTool("Nozzle",setAsCurrent,0,TypeOfGeometricalSet);創(chuàng)建幾何特征創(chuàng)建點(diǎn)創(chuàng)建點(diǎn)的工作主要分為四步：（1）創(chuàng)建點(diǎn)的長(zhǎng)度特征，分xyz三部分。（2）將創(chuàng)建的點(diǎn)特征依次加入特征容器（3）調(diào)用中CAAGsiObjTool創(chuàng)建點(diǎn)的方法，根據(jù)特征容器創(chuàng)建點(diǎn)。（4）清空特征容器，為下次執(zhí)行做準(zhǔn)備。 CATISpecObject_varspCurrent=NULL_var;//Point(17,0,0)CAAGsiObjTool.CreateLength("X",17.0,spCurrent);aObjectParameters.Append(spCurrent);CAAGsiObjTool.CreateLength("Y",0.0,spCurrent);aObjectParameters.Append(spCurrent);CAAGsiObjTool.CreateLength("Z",0.0,spCurrent);aObjectParameters.Append(spCurrent);CATISpecObject_varspPoint1=CAAGsiObjTool.CreatePointCoord(aObjectParameters);aObjectParameters.RemoveAll();創(chuàng)建平面創(chuàng)建plane的工作類似于創(chuàng)建點(diǎn)，分為4步：（1）創(chuàng)建平面特征，分ABCD4部分。（2）將創(chuàng)建的平面特征依次加入特征容器（3）調(diào)用中CAAGsiObjTool創(chuàng)建平面方程的方法，根據(jù)特征容器創(chuàng)建平面。（4）清空特征容器，為下次執(zhí)行做準(zhǔn)備。以創(chuàng)建平面Y=15為例，其參數(shù)可如下設(shè)置。//AnalyticplaneY=15CAAGsiObjTool.CreateReal("A",0.0,spCurrent);aObjectParameters.Append(spCurrent);CAAGsiObjTool.CreateReal("B",1.0,spCurrent);aObjectParameters.Append(spCurrent);CAAGsiObjTool.CreateReal("C",0.0,spCurrent);aObjectParameters.Append(spCurrent);CAAGsiObjTool.CreateLength("D",15.0,spCurrent);aObjectParameters.Append(spCurrent);CATISpecObject_varspPlaneY15=CAAGsiObjTool.CreatePlaneEquation(aObjectParameters);aObjectParameters.RemoveAll();創(chuàng)建直線創(chuàng)建直線的工作分為3步：（1）在特征容器中加入兩個(gè)點(diǎn)。（2）調(diào)用中CAAGsiObjTool創(chuàng)建平直線的方法，根據(jù)特征容器創(chuàng)建直線。（3）清空特征容器，為下次執(zhí)行做準(zhǔn)備。下面是在xy平面中創(chuàng)建一條直線。aObjectParameters.Append(spPoint1);aObjectParameters.Append(spPoint3); CATISpecObject_varspLine2=CAAGsiObjTool.CreateLinePtPt(aObjectParameters);aObjectParameters.RemoveAll();創(chuàng)建圓環(huán)創(chuàng)建圓環(huán)的工作分為3步：在特征容器中加入兩個(gè)點(diǎn)。在特征容器中加入?yún)⒖计矫?。?）創(chuàng)建半徑的長(zhǎng)度，并加入特征容器。（3）根據(jù)特征容器中的元素創(chuàng)建圓。（4）清空特征容器，為下次執(zhí)行做準(zhǔn)備。下面是在平面Y＝10中創(chuàng)建半徑為17的通過(guò)點(diǎn)3點(diǎn)4的圓。aObjectParameters.Append(spPoint3);aObjectParameters.Append(spPoint4);aObjectParameters.Append(spPlaneY10);CAAGsiObjTool.CreateLength("Radius",17.0,spCurrent);aObjectParameters.Append(spCurrent);CATISpecObject_varspCircle2=CAAGsiObjTool.CreateCircle2PointsRad(aObjectParameters,FALSE,TRUE);aObjectParameters.RemoveAll();此外還需創(chuàng)建一些圓弧用來(lái)定義導(dǎo)引路徑。通過(guò)圓心、通過(guò)點(diǎn)、參考平面、起始角度、結(jié)束角度創(chuàng)建圓弧的方法如下：aObjectParameters.Append(spPoint11);aObjectParameters.Append(spPoint7);aObjectParameters.Append(spPlaneXY);CAAGsiObjTool.CreateAngle("Angle1",0.0,spCurrent);aObjectParameters.Append(spCurrent);CAAGsiObjTool.CreateAngle("Angle2",-90.0,spCurrent);aObjectParameters.Append(spCurrent);CATISpecObject_varspCircle5=CAAGsiObjTool.CreateCircleCenterRad(aObjectParameters,FALSE);aObjectParameters.RemoveAll();創(chuàng)建分割(Split)創(chuàng)建分割，作為導(dǎo)引線用于限制放樣曲面的范圍。這里采用了兩條圓弧。aObjectParameters.Append(spCircle6);aObjectParameters.Append(spPlaneAngle35);CATISpecObject_varspSplit1=CAAGsiObjTool.CreateSplit(aObjectParameters,TRUE);aObjectParameters.RemoveAll();創(chuàng)建掃掠曲面采用一條導(dǎo)引線的方式創(chuàng)建掃掠曲面，利用前面定義的直線、圓弧，調(diào)用CreateSweepOneGuide方法。aObjectParameters.Append(spLine2);aObjectParameters.Append(spCircle1);CATISpecObject_varspSweep1=CAAGsiObjTool.CreateSweepOneGuide(aObjectParameters);aObjectParameters.RemoveAll();創(chuàng)建放樣曲面根據(jù)放樣曲面的定義，創(chuàng)建所需的構(gòu)造元素。首先創(chuàng)建一個(gè)樣條曲線：利用兩條直線創(chuàng)建端點(diǎn)的切線方向，在特征容器中加入兩個(gè)點(diǎn)，最后調(diào)用CreateSpline方法創(chuàng)建樣條曲線。aObjectParameters.Append(spPoint15);aObjectParameters.Append(spPoint16);CATISpecObject_varspDir1=CAAGsiObjTool.CreateDirection(spLine7);CATISpecObject_varspDir2=CAAGsiObjTool.CreateDirection(spLine8);CATISpecObject_varspSpline=CAAGsiObjTool.CreateSpline(aObjectParameters,spDir1,FALSE,spDir2,TRUE);aObjectParameters.RemoveAll();首先創(chuàng)建一個(gè)比較簡(jiǎn)單的放樣曲面。定義兩個(gè)特征容器，分別放置截面特征、路徑特征，創(chuàng)建放樣曲面。CATLISTV(CATISpecObject_var)aObjectParametersSections;aObjectParametersSections.Append(spCircle2);aObjectParametersSections.Append(spCircle3);aObjectParameters.Append(spLine3);CATISpecObject_varspUnused=NULL_var;CATISpecObject_varspLoft1=CAAGsiObjTool.CreateLoft(aObjectParametersSections,aObjectParameters,spUnused);aObjectParameters.RemoveAll();aObjectParametersSections.RemoveAll();之后創(chuàng)建一個(gè)帶切割特征的較復(fù)雜放樣曲面。aObjectParametersSections.Append(spCircle7);aObjectParametersSections.Append(spCircle4);aObjectParameters.Append(spSplit1);aObjectParameters.Append(spSplit2);CATISpecObject_varspLoft2=CAAGsiObjTool.CreateLoft(aObjectParametersSections,aObjectParameters,spSpline);aObjectParameters.RemoveAll();aObjectParametersSections.RemoveAll();關(guān)閉進(jìn)程，保存文檔調(diào)用CAAGsiObjTool中的方法，將文件保存在由輸入?yún)?shù)指定的路徑中，最后關(guān)閉進(jìn)程，結(jié)束程序。rc=CAAGsiObjTool.Save(pPartName);rc=CAAGsiObjTool.Close(pSessionName);在點(diǎn)、線、面的特征創(chuàng)建中，多次用多了CreateAngleCreateLengthCreateReal方法，用于創(chuàng)建最基本的幾何元素，其區(qū)別是：CreateAngle：創(chuàng)建角度數(shù)值，CreateLength：創(chuàng)建長(zhǎng)度數(shù)值。CreateReal：創(chuàng)建比例數(shù)值。將曲面feature轉(zhuǎn)換為Datum（CAAGsiDatum.m）本用例將完成以下任務(wù)：讀入曲面文件、join所有曲面、將join結(jié)果轉(zhuǎn)換為Datum，Datum不包含子結(jié)構(gòu)，不存在上下文結(jié)構(gòu)，即它的結(jié)構(gòu)是穩(wěn)定的。程序運(yùn)行時(shí)，需輸入：待處理曲面文件、保存結(jié)果文件。類似：CAAGsiDatumE:\tmp\CAAGsiNozzle.CATPartE:\tmp\CAAGsiDatum.CATPart最終的處理結(jié)果，在3D顯示區(qū)和結(jié)構(gòu)樹(shù)上如圖：載入文檔在程序里面定義一些出錯(cuò)原因，供調(diào)試使用：//0successfulexecution//1badnumberofarguments//2problemduringdocumentcreation//3problemduringdocumentdeletion//4problemduringPartSave創(chuàng)建進(jìn)程、打開(kāi)曲面文件。char*pSessionName="SampleSession";CATSession*pSession=NULL;rc=Create_Session(pSessionName,pSession);CATDocument*pDoc=NULL;rc=CATDocumentServices::OpenDocument(InputName,pDoc);CATIPrtContainer*piPartContainer=NULL;CATIPrtPart_varspPrtPart;訪問(wèn)零件結(jié)構(gòu)的特征容器和幾何容器。CATInit*pDocAsInit=NULL;pDoc->QueryInterface(IID_CATInit,(void**)&pDocAsInit);piPartContainer=(CATIPrtContainer*)pDocAsInit->GetRootContainer("CATIPrtContainer");pDocAsInit->Release();pDocAsInit=NULL;if(NULL!=piPartContainer){CATISpecObject_varspPart=piPartContainer->GetPart();spPrtPart=spPart;}獲取GSM接口，為Create元素做數(shù)據(jù)準(zhǔn)備。CATIGSMFactory_varspGsmFact;if(NULL!=piPartContainer){CATIGSMFactory*_pFact=NULL;rc=piPartContainer->QueryInterface(IID_CATIGSMFactory,(void**)&_pFact);if(SUCCEEDED(rc)){spGsmFact=_pFact;if(_pFact)_pFact->Release();_pFact=NULL;}piPartContainer->Release();piPartContainer=NULL;}在當(dāng)前文檔中搜索對(duì)象，通過(guò)曲面的名稱在結(jié)構(gòu)樹(shù)上查找包含的4個(gè)曲面。CATISpecObject_varspSweep1,spSweep2,spLoft1,spLoft2;intiValidatedInput=1;if(NULL_var!=spPrtPart){CATUnicodeStringSweep1Name("Sweep.1");spSweep1=CAAGsiSearchFeatureFromName(spPrtPart,Sweep1Name);CATUnicodeStringSweep2Name("Sweep.2");spSweep2=CAAGsiSearchFeatureFromName(spPrtPart,Sweep2Name);CATUnicodeStringL