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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. Y/ c; E) ]! {- q' E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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& J4 _% b" G4 E/ J! ]" m8 FSession *theSession = Session::GetSession();
& a) C: R- A( G0 c) R" O        UI         *theUI = UI        ::GetUI();
        Part *workPart (theSession->Parts()->Work());
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8 ~7 B3 q% l1 s1 n- P2 u. F        // initialize the select
        std::vector <Selection::MaskTriple> masks(1);
        Selection::MaskTriple mask;
        mask.Type=UF_feature_type;
        mask.Subtype =0;
        mask.SolidBodySubtype=0;
, k; B) H# v" c1 b. g* I8 d7 i        masks.push_back(mask);
        //masks[0] = {{UF_feature_type,0,0}};
        TaggedObject *object;
* z, E4 f9 w; w1 N4 O- g9 i        std::stringstream ss;
2 g! \: i8 ~  o2 _" J* [        Point3d cursor;
3 {4 v: g  [. ^7 f6 _        Selection::SelectionScope scope =  Selection::SelectionScopeUseDefault;
& C2 X: J7 Z# ?" [9 i# p# [" e        Selection::SelectionAction action = Selection::SelectionActionClearAndEnableSpecific;
        Selection::Response res;
) w+ k1 l$ T, s2 Q# k. q. a- b" o$ u- `        Features::Feature * getFeature = NULL;
1 L. B: r4 V/ u        res = theUI->SelectionManager()->SelectTaggedObject("select a feature:","feature select",scope,action,false,false,masks,&object,&cursor);
/ p5 C3 N, \7 D2 }5 i3 P6 @        if(res == Selection::ResponseObjectSelected || res == Selection::ResponseObjectSelectedByName)
* f; D, k( f- T6 ]' M                {
# S8 O' E1 Z. U9 V$ ?/ P                        // get the information
                         getFeature = dynamic_cast<Features::Feature *>(object);
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          theSession->ListingWindow()->WriteLine("the select feature type is : " +getFeature->FeatureType() + "\n");

                 if (!strcmp(getFeature->FeatureType().GetUTF8Text(),"SPHERE"))
                 {
                         Features::Sphere *getSphere = dynamic_cast<Features::Sphere *>(getFeature);
, ^- l7 }, A$ K5 R                         std::vector<Expression *> exp =  getSphere->GetExpressions();
' O- E" A. ^& o- o* Q                         ss << exp.size() <<endl;
6 T' ~1 p) E! G; Q: l" g- ]                         theSession->ListingWindow()->WriteLine("the expression number is : "  + ss.str() );
                         for(unsigned int i =0 ; i< exp.size();i++)
                         {   
/ v& z* B1 P- k  |4 S/ U3 m                                  theSession->ListingWindow()->WriteLine("The expressions are : " + exp[i]->Equation()+"\n");
                         }
- X  o! K$ M/ W+ c                         Session::UndoMarkId undomark = theSession->SetUndoMark(Session::MarkVisibilityVisible,"change the exp");
. f7 W: M4 Y9 G" n& K                         exp[0]->SetRightHandSide("400");
9 h1 g/ j( m' l, b                         theSession->UpdateManager()->DoUpdate(undomark);
6 l" ?/ ?/ _& z; [  }                         theSession->ListingWindow()->WriteLine("The expressions are : " + exp[0]->Equation()+"\n");
' ~7 G% u1 L* `; S                 }
          }
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