1、CATIA二次开发CAA技术基础学习知识之零件设计第五章零件设计5.1零件设计环境图5.1零件设计环境零件设计环境中,MyPart1中包含参考平面(包括XY平面、YZ平面、ZX平面)、轴系、参数、几何图形集、有序几何图形集、零件几何体、几何体、集合中的几何体等节点。几何图形集是无序建模,一般全曲面建模就是他比较管用;有序几何图形集,他里面可以包含集合中的几何体,几何图形集,几何特征,但建模方式是有序的;几何体是直接插入零件环境下,他里面可以包含几何图形集,有序几何图形,几何特征,但建模方式是有序的;集合中的几何体在插入前会询问用户,他可以放在树的根目录下也可以放在有序几何图形集里面,还可以在插
2、入的同时把有序几何图形集里的特征集合到(集合中的几何体)里面。5.2零件设计接口介绍5.2.1操纵零件的一般步骤图5.2操纵零件的主要接口及步骤5.2.2获得CATIPrtPart参考代码如下:CATIPrtContainer_var spPrtContainer=spContainer;CATIPrtPart_varspPrtPart=spPrtContainer-GetPart();5.2.3获得零件下所有节点方法一:利用CATIDescendants接口CATIDescendants_var spDescendantsOnPart=spPrtPart;CATListValCATISpec
3、Object_varspSpecObjects;piDescendantsOnPart-GetAllChildren(CATISpecObject,spSpecObjects);方法二:利用CATContainer中的ListMembersHere方法SEQUENCE(CATBaseUnknown_ptr)ListObj;longNbObj=piRootContainer-ListMembersHere(CATISpecObject,ListObj);for(intj=0;jGetReferencePlanes();注意:spReferencePlanes为包含三个元素的数组,数组元素依次为x
4、y平面,yz平面和zx平面。如果要使用yz平面,则参考代码如下:CATISpecObject_var spyzPlane=spReferencePlanes2;5.2.5获得轴系参考代码如下:CATIMf3DAxisSystemManager_varspAxisSystem=NULL_var;spPrtPart-QueryInterface(IID_CATIMf3DAxisSystemManager,(void*)&spAxisSystem);/得到的所有轴系CATLISTV(CATIMf3DAxisSystem_var)oAxisSystemList;spAxisSystem-GetAxis
5、Systems(oAxisSystemList);5.2.6获得参数方法一:利用CATIDescendants接口CATIDescendants_var spDescendantsOnPart=spPrtPart;CATListValCATISpecObject_varspSpecObjects;piDescendantsOnPart-GetAllChildren(CATICkeParm,spSpecObjects);方法二:利用CATIParmPublisher中接口CATIParmPublisher_var spParmPublisher=spPrtPart;CATListValCATIS
6、pecObject_varListFound;spParmPublisher-GetAllChildren(CATICkeParm,ListFound);方法三:利用CATContainer中的ListMembersHere方法SEQUENCE(CATBaseUnknown_ptr)ListObj;longNbObj=spContainer-ListMembersHere(CATICkeParm,ListObj);for(intj=0;jNbObj;j+)/注意从0开始CATIAlias_varspAlias=ListObjj;coutGetAlias()QueryInterface(IID_
7、CATIPartRequest,(void*)&pIPartRequest);if(SUCCEEDED(rc)CATLISTV(CATBaseUnknow_var)ListBodies;/所有几何体CATUnicodeStringViewContext=MfDefault3DView;rc=pIPartRequest-GetSolidBodies(ViewContext,ListBodies);例2:获得零件中的所有有序几何图形集的代码如下。CATIDescendants_var spDescendantsOnPart=spPrtPart;CATListValCATISpecObject_va
8、rspSpecOGSs;/所有有序几何图形集piDescendantsOnPart-GetAllChildren(CATIMmiOrderedGeometricalSet,spSpecOGSs);例3:获得零件几何体的代码如下。CATBaseUnknow_varspMainBody;/零件几何体pIPartRequest-GetMainBody(ViewContext,spMainBody);例4:获得CATBody的代码如下。CATIBodyRequest*pIBodyRequest=NULL;spMainBody-QueryInterface(IID_CATIBodyRequest,(vo
9、id*)&pIBodyRequest);CATLISTV(CATBaseUnknown_var)ListResult;pIBodyRequest-GetResults(,ListResult);CATIGeometricalElement*pIGeometricalElement=NULL;for(inti=1;iQueryInterface(IID_CATIGeometricalElement,(void*)&pIGeometricalElement);CATBody_varspBodyResult=pIGeometricalElement-GetBodyResult();5.2.8创建轴系
10、/首先初始化工厂CATIMf3DAxisSystemFactory*pIMf3DAxisSystemFactoryOnFeatCont=spContainer;CATMathPointOrigin(150.0,.0,.0);CATMathVectorX(1.0,.0,.0);CATMathVectorY(0.0,1.0,.0);CATIMf3DAxisSystem_varNewAxisSystemStd;/创建的轴系pIMf3DAxisSystemFactoryOnFeatCont-CreateAxisSystem(Origin,X,Y,NewAxisSystemStd);/对轴系的X、Y方向
11、进行修改NewAxisSystemStd-SetAxisDirection(CATAxisSystemXNumber,pVectorX);NewAxisSystemStd-SetAxisDirection(CATAxisSystemYNumber,pVectorY);5.2.9创建参数和公式1创建参数/初始化CATICkeParmFactory工厂CATICkeParmFactory_varspParmFactory=spContainer;CATICkeParm_varspParam1=spParmFactory-CreateLength(Base,0.1);CATICkeParm_vars
12、pParam2=spParmFactory-CreateLength(Width,0.15);/长度单位为米CATICkeParm_varspParam3=spParmFactory-CreateLength(Height,0.2);/创建长度参数/CATIParmPublisher与CATICkeFunctionFactory功能为将所有参数显示在结构树中CATIParmPublisher_var spParmPublisher=NULL_var;CATICkeFunctionFactory_varspFuncFactory=CATCkeGlobalFunctions:GetFunction
13、Factory();spParmPublisher=spFuncFactory-GetCurrentSet(CATICkeFunctionFactory:Parameter,spPrtPart,CATCke:True);spParmPublisher.Append(spParam1);spParmPublisher.Append(spParam2);spParmPublisher.Append(spParam3);2创建公式/创建参数列表CATCkeListOfParmpList;pList-Append(spParam1);pList-Append(spParam2);pList-Appen
14、d(spParam3);/创建公式Height=Width+BaseCATICkeRelation_var spFormula1 = spParmFactory-CreateFormula(Formula,spParam3,pList,Width+Base,spParmPublisher,CATCke:True);spFuncFactory-AddToCurrentRelationSet(spFormula1,spParmPublisher);/修改参数进行测试spParam1-Valuate(0.5);5.2.10创建几何图形集等节点/初始化CATIMechanicalRootFactory
15、工厂CATIMechanicalRootFactory_varspMechanicalRootFactory=spContainer;/创建几何图形集virtualHRESULTCreateGeometricalSet(constCATUnicodeString&iUserName,constCATISpecObject_var&iDestination,CATISpecObject_var &oGeomSet,intiPosition=-1)=0;函数说明如下表5.1所示:iDestination为零件节点iDestination为其他节点iPosition=-1几何图形集位于零件最后几何图
16、形集与iDestination在同一父节点下,且在iDestination节点后iPosition=0几何图形集位于零件最后几何图形集位于iDestination中的最后0iPositionCreateHole();CATINewHole_varspNewHole=spHole;spNewHole-SetHoleType(1);/设置孔类型为简单孔spNewHole-SetBottomType(1);/设置孔底面类型为平底spNewHole-SetDiameter(5)/设置直径spNewHole-SetLimit(1)/设置为盲孔CATIHoleLimit_varspHoleLimit=sp
17、Hole;spHoleLimit-SetOffset(5);/设置孔的深度3将孔添加在结构树中spHole-Update();CATIGSMProceduralView_varispProcView=spHole;if(NULL_var!=ispProcView)HResultrc=ispProcView-InsertInProceduralView();5.2.12创建零件设计表/初始化CATICkeParmFactory工厂CATICkeParmFactory_varspParmFactory=spContainer;/创建设计表的函数如下CATIDesignTable_varCreate
18、DesignTable(constCATUnicodeString&iRelationName,constCATUnicodeString& iComment,constCATUnicodeString& iFilePath,int orientation=1,intsheetWithoutFile=0);函数说明:iRelationName为设计表的名字,iComment为设计表的说明,iFilePath为创建表的路径。创建零件族的步骤如下:1.创建参数CATICkeParm_varspPp1=spFact-CreateInteger(Column1,0);CATICkeParm_varsp
19、Pp2=spFact-CreateReal(r,0.0);CATICkeParm_varspPp3=spFact-CreateString(s,);CATICkeParm_varspPp4=spFact-CreateBoolean(b,CATCke:True);CATICkeParm_varspPp5=spFact-CreateLength(l,0);CATICkeParm_varspPp6=spFact-CreateAngle(a,0);2.将参数显示在结构树上CATIPrtContainer_varspPrtCont=spContainer;CATIParmPublisher_varspP
20、ubroot=spPrtCont-GetPart();CATICkeFunctionFactory_varfact=CATCkeGlobalFunctions:GetFunctionFactory();CATISpecObject_varspParameterSet=NULL_var;spParameterSet=fact-GetCurrentSet(CATICkeFunctionFactory:Parameter,spPubroot,CATCke:True);CATIParmPublisher_varspParmPublisher=spParameterSet;spParmPublisher
21、-Append(spPp1);spParmPublisher-Append(spPp2);spParmPublisher-Append(spPp3);spParmPublisher-Append(spPp4);spParmPublisher-Append(spPp5);spParmPublisher-Append(spPp6);3.创建设计表CATIDesignTable_varspDesignTable=spFact-CreateDesignTable();4.将设计表显示在结构树上CATISpecObject_varspRelationSet=fact-GetCurrentSet(CATICkeFunctionFactory:Relation,spPu
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