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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2 i4 ^( J% H6 A& d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();
5 l- }5 t1 p, r& Q! W  Q        UI         *theUI = UI        ::GetUI();
        Part *workPart (theSession->Parts()->Work());
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        // initialize the select
0 ^# x5 y+ E! Y/ i0 M% {        std::vector <Selection::MaskTriple> masks(1);
( t  S1 Z: p8 z1 O. N8 M        Selection::MaskTriple mask;
- V# O+ E2 V* S2 T* r; ?        mask.Type=UF_feature_type;
) |- k, Q5 h8 j1 u! {: @* w, H0 g% k        mask.Subtype =0;
5 S$ R1 Q4 y, `+ ?        mask.SolidBodySubtype=0;
% ~4 U( B/ F9 ~% U- r        masks.push_back(mask);
        //masks[0] = {{UF_feature_type,0,0}};
  @* S; c# @8 d        TaggedObject *object;
        std::stringstream ss;
        Point3d cursor;
! \: Q3 a- p/ F        Selection::SelectionScope scope =  Selection::SelectionScopeUseDefault;
3 y& w# }  n( u9 X        Selection::SelectionAction action = Selection::SelectionActionClearAndEnableSpecific;
        Selection::Response res;
6 X+ {( |( [- O5 S        Features::Feature * getFeature = NULL;
        res = theUI->SelectionManager()->SelectTaggedObject("select a feature:","feature select",scope,action,false,false,masks,&object,&cursor);
        if(res == Selection::ResponseObjectSelected || res == Selection::ResponseObjectSelectedByName)
+ J( L6 x3 S# }                {
7 h6 ]3 y* I- G  A1 D. ^; |2 t5 [                        // get the information
! d8 o" {" _1 k6 P6 P                         getFeature = dynamic_cast<Features::Feature *>(object);

* x5 ^( q. c- T+ z+ i: H          theSession->ListingWindow()->WriteLine("the select feature type is : " +getFeature->FeatureType() + "\n");
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                 if (!strcmp(getFeature->FeatureType().GetUTF8Text(),"SPHERE"))
                 {
* r1 }0 w- R6 q9 A) h. g                         Features::Sphere *getSphere = dynamic_cast<Features::Sphere *>(getFeature);
0 G5 i( l/ m. e" ]                         std::vector<Expression *> exp =  getSphere->GetExpressions();
  J% t6 ]) q/ p* q% V1 I                         ss << exp.size() <<endl;
                         theSession->ListingWindow()->WriteLine("the expression number is : "  + ss.str() );
                         for(unsigned int i =0 ; i< exp.size();i++)
# I4 Z! {( b1 r% F6 _0 G( ^                         {   
- X9 Y3 t  f4 |+ w5 N" W) J* f                                  theSession->ListingWindow()->WriteLine("The expressions are : " + exp[i]->Equation()+"\n");
                         }
* Q, N, q/ q7 p3 @$ f% f% V' A# S" C& t- [                         Session::UndoMarkId undomark = theSession->SetUndoMark(Session::MarkVisibilityVisible,"change the exp");
5 U$ M8 o- r; _0 f3 D! B                         exp[0]->SetRightHandSide("400");
                         theSession->UpdateManager()->DoUpdate(undomark);
                         theSession->ListingWindow()->WriteLine("The expressions are : " + exp[0]->Equation()+"\n");
, A8 X6 d, f; q+ p8 Q* ~9 b" s: g                 }
& ?& J& t/ n3 K0 |& i3 b2 p2 x) E          }


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