NX二次开发培训源码分享： 通过选择指定特征，修改特征...

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创建一个选择feature的功能，当用户选择的是sphere的时候，让用户选择更改球的直径！
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Session *theSession = Session::GetSession();
- t9 ~- b- i; I5 E; U        UI         *theUI = UI        ::GetUI();
        Part *workPart (theSession->Parts()->Work());
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% T: ^8 g3 R1 n# X" b& u7 k        // initialize the select
  G. p+ Q4 Z$ ]  v* t        std::vector <Selection::MaskTriple> masks(1);
        Selection::MaskTriple mask;
        mask.Type=UF_feature_type;
# d1 K+ ~( B8 Q) r+ B7 H+ R        mask.Subtype =0;
8 t" ^; z/ A1 H6 |# s. A0 s8 s1 |( Z        mask.SolidBodySubtype=0;
        masks.push_back(mask);
8 w3 L3 B$ T0 I  W" U        //masks[0] = {{UF_feature_type,0,0}};
5 u+ g$ [7 a, [: u        TaggedObject *object;
        std::stringstream ss;
5 [3 h+ X$ r& P; i, P0 a  Z        Point3d cursor;
+ P, M% ^; o: G8 g: v        Selection::SelectionScope scope =  Selection::SelectionScopeUseDefault;
# S( L' q$ g6 g0 ~3 p        Selection::SelectionAction action = Selection::SelectionActionClearAndEnableSpecific;
        Selection::Response res;
; r" [4 \, B- E: ^        Features::Feature * getFeature = NULL;
8 {  t2 d8 f$ h& d. S        res = theUI->SelectionManager()->SelectTaggedObject("select a feature:","feature select",scope,action,false,false,masks,&object,&cursor);
( j( i- e( d, i4 w7 w. ^% O' v; ?        if(res == Selection::ResponseObjectSelected || res == Selection::ResponseObjectSelectedByName)
" B  W1 c5 h: y. |+ q6 a                {
# X0 v. Y0 z0 i# A4 T                        // get the information
                         getFeature = dynamic_cast<Features::Feature *>(object);

: s# M% O# h; t- W          theSession->ListingWindow()->WriteLine("the select feature type is : " +getFeature->FeatureType() + "\n");

2 A; V1 b9 t4 z; c3 M. _" Y                 if (!strcmp(getFeature->FeatureType().GetUTF8Text(),"SPHERE"))
                 {
) s) ^& Z# W0 y3 s3 T4 U. Y                         Features::Sphere *getSphere = dynamic_cast<Features::Sphere *>(getFeature);
" n( R- E1 c1 \+ y  _                         std::vector<Expression *> exp =  getSphere->GetExpressions();
. n4 l( g8 t7 q! D$ s& {                         ss << exp.size() <<endl;
                         theSession->ListingWindow()->WriteLine("the expression number is : "  + ss.str() );
                         for(unsigned int i =0 ; i< exp.size();i++)
                         {   
                                  theSession->ListingWindow()->WriteLine("The expressions are : " + exp[i]->Equation()+"\n");
                         }
" ~. M8 c5 }; `" M8 o/ {                         Session::UndoMarkId undomark = theSession->SetUndoMark(Session::MarkVisibilityVisible,"change the exp");
                         exp[0]->SetRightHandSide("400");
7 e4 z3 o4 X6 \; H                         theSession->UpdateManager()->DoUpdate(undomark);
2 A" {  V4 }* e) h* P                         theSession->ListingWindow()->WriteLine("The expressions are : " + exp[0]->Equation()+"\n");
                 }
' H2 z1 j* K; u. ^$ J6 Y! W6 K          }

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