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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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6 b+ w5 c. }$ j6 pSession *theSession = Session::GetSession();. c# Q+ s, n2 Y- f4 S
UI *theUI = UI ::GetUI();
! n, h; ]* m4 _4 H4 m E Part *workPart (theSession->Parts()->Work());
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// initialize the select 4 q( [3 V1 p9 v2 C, o
std::vector <Selection::MaskTriple> masks(1);
* L& O; C. I1 T& ~ Selection::MaskTriple mask;3 e0 q/ [% A) K6 ]0 d
mask.Type=UF_feature_type;
& q7 I/ }. z; d; R: \6 y mask.Subtype =0;
/ D) v! M8 J6 T0 Y mask.SolidBodySubtype=0;7 x3 P! H6 }, A; A" f, j; w
masks.push_back(mask);
) C: Y7 U# ]. D6 \+ m5 R! a4 D //masks[0] = {{UF_feature_type,0,0}};9 j' {+ d% e N9 \8 b8 P O
TaggedObject *object;
# H. `" V) A) B- K: w1 E+ L8 W& f std::stringstream ss;( s5 z$ O% a) ~, p s9 @0 O+ p
Point3d cursor;
7 Z& X- G) i. e9 w5 J Selection::SelectionScope scope = Selection::SelectionScopeUseDefault;, I L' J% o' I4 o
Selection::SelectionAction action = Selection::SelectionActionClearAndEnableSpecific;
1 W ~' n: c& Y: \ N0 e" { Selection::Response res;
4 R$ y- u7 m+ N' N8 ?2 f+ b1 c Features::Feature * getFeature = NULL;1 ^# {! a( y4 E
res = theUI->SelectionManager()->SelectTaggedObject("select a feature:","feature select",scope,action,false,false,masks,&object,&cursor);$ g) h# Q0 g0 e7 m
if(res == Selection::ResponseObjectSelected || res == Selection::ResponseObjectSelectedByName), B8 L$ g# q1 Z8 p7 |9 h) y
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// get the information+ W6 P5 R" L9 w" y9 o+ |) W# b2 h
getFeature = dynamic_cast<Features::Feature *>(object);, N. W V' d$ |1 I
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theSession->ListingWindow()->WriteLine("the select feature type is : " +getFeature->FeatureType() + "\n");# X9 \8 K: Q1 g5 b
; ?7 b1 a( |- }% k' u9 m: O if (!strcmp(getFeature->FeatureType().GetUTF8Text(),"SPHERE"))/ T6 V( U3 B: v: Y) G
{
' n0 Z. k. t% p1 S Features::Sphere *getSphere = dynamic_cast<Features::Sphere *>(getFeature);
' @: `7 y* R' D% f8 q/ K! z5 x1 i std::vector<Expression *> exp = getSphere->GetExpressions();# ?, @0 t' s! v5 Y2 v+ E5 D
ss << exp.size() <<endl;8 f: j" g; A( Z
theSession->ListingWindow()->WriteLine("the expression number is : " + ss.str() );
# _, F$ `% G1 S: o" h0 E5 D: t for(unsigned int i =0 ; i< exp.size();i++)& Z3 S2 [" J9 Z- q9 W2 I
{
6 g9 i; u. }4 |3 J theSession->ListingWindow()->WriteLine("The expressions are : " + exp[i]->Equation()+"\n");
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4 |8 F& m2 b# G: I6 @7 R Session::UndoMarkId undomark = theSession->SetUndoMark(Session::MarkVisibilityVisible,"change the exp");
0 \; n1 C/ G- w4 y6 [9 b. d7 B exp[0]->SetRightHandSide("400");! d# l f# m- k G
theSession->UpdateManager()->DoUpdate(undomark);$ Y7 l. J7 E+ A |- E/ d
theSession->ListingWindow()->WriteLine("The expressions are : " + exp[0]->Equation()+"\n");, `5 X1 r5 m! S$ I
}
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