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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();0 a8 \4 m V+ L2 d. L( g3 ~
UI *theUI = UI ::GetUI(); R9 n$ u# d" F) ?% \* r/ v% a# V
Part *workPart (theSession->Parts()->Work());
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# C4 R8 V( l. ~1 V0 h3 q // initialize the select
* y7 a# |% i, n# i& {7 e std::vector <Selection::MaskTriple> masks(1);% v% t" y S! r/ P/ |
Selection::MaskTriple mask;
% |% j. O: b7 _. i+ l& U# ~ mask.Type=UF_feature_type;2 ~8 o9 l1 N/ y+ y' n0 d. {; v
mask.Subtype =0;
) v. p" p3 P$ t. n. \: d" J mask.SolidBodySubtype=0;
7 h8 D% y* Y; F4 M7 d+ I masks.push_back(mask);$ y. [" V; \* h) T, H& W* w' P
//masks[0] = {{UF_feature_type,0,0}};& P5 ~( f p& k8 F0 g- h
TaggedObject *object;
# N2 t, |/ y/ o c; Y std::stringstream ss;0 q, ^6 `0 J z S/ C t4 E3 I
Point3d cursor;; W. s8 m. I6 g+ H9 z: E
Selection::SelectionScope scope = Selection::SelectionScopeUseDefault;
- A3 p+ q L* @ Selection::SelectionAction action = Selection::SelectionActionClearAndEnableSpecific;% |- T# Z7 W" z T. Z0 K- {/ n
Selection::Response res;
& I( h: B$ k( Q6 O Features::Feature * getFeature = NULL;9 b$ c6 \" e/ O( J- B5 t
res = theUI->SelectionManager()->SelectTaggedObject("select a feature:","feature select",scope,action,false,false,masks,&object,&cursor);
# b' R) c7 V$ Q7 v; T if(res == Selection::ResponseObjectSelected || res == Selection::ResponseObjectSelectedByName)9 z+ \# f+ c. u8 \0 q- h. ^! m
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// get the information2 V0 i; { g& I* }' I0 s! U- z6 D
getFeature = dynamic_cast<Features::Feature *>(object);
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theSession->ListingWindow()->WriteLine("the select feature type is : " +getFeature->FeatureType() + "\n");4 Q+ a. B4 H3 k" S/ h* t; t
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if (!strcmp(getFeature->FeatureType().GetUTF8Text(),"SPHERE"))5 x* ?: p* m& j$ ?# x5 x7 c9 r
{
8 [& ]% h& P& ?% u# v0 Q& u4 Y6 \) w Features::Sphere *getSphere = dynamic_cast<Features::Sphere *>(getFeature);
) [( d- t; \, z1 {& o std::vector<Expression *> exp = getSphere->GetExpressions();
" Z3 Z4 d( B: y, {" w' Y ss << exp.size() <<endl;' @$ Y2 j& K( s6 V
theSession->ListingWindow()->WriteLine("the expression number is : " + ss.str() );& a- j5 |1 a N5 j1 x2 K: k
for(unsigned int i =0 ; i< exp.size();i++), } f0 g- c* p" q! C
{
3 j/ F$ y: Y* o. a" P theSession->ListingWindow()->WriteLine("The expressions are : " + exp[i]->Equation()+"\n");
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Session::UndoMarkId undomark = theSession->SetUndoMark(Session::MarkVisibilityVisible,"change the exp");) Z4 w5 L' h% H, K( Y
exp[0]->SetRightHandSide("400");: f/ s3 F9 d, A# t+ \! k' K
theSession->UpdateManager()->DoUpdate(undomark);2 e9 b" Y# o9 }; c
theSession->ListingWindow()->WriteLine("The expressions are : " + exp[0]->Equation()+"\n");
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