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[二次开发源码] NX二次开发源码: 创建草图并通过草图做出回转体

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2014-2-19 17:07:47 4972 1

admin 发表于 2014-2-19 17:06:32 |阅读模式

admin 楼主

2014-2-19 17:06:32

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x
通过NX开发进行草图的创建,创建草图过程包括基本曲线的创建以及约束。) Q. g2 m% x% P8 v6 \
草图的约束分为几何约束和尺寸约束,通过代码的约束使得草图完全约束。
* c+ H% e; x# Z% K8 }) p草图完成后,可以通过回转体进行旋转,此处直接做出简单的例子。3 i! n8 w3 D, f
仅供参考!
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效果如下:6 O' e6 A0 B, g* w- u

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创建草图

创建草图

生成

生成
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admin 发表于 2014-2-19 17:07:47

admin 沙发

2014-2-19 17:07:47

比较乱,仅供参考
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  1. <p>void basicFeatures::createSketch()
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  2. {</p><p>{
    6 D6 ?; ?" y/ C, W  e0 h
  3.     Session *theSession = Session::GetSession();
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  4.     Part *workPart(theSession->Parts()->Work());- X5 j: Y1 |/ V5 y. ]. e  _
  5.     Part *displayPart(theSession->Parts()->Display());( x" j# W& z/ i  v5 A
  6.     Sketch *nullSketch(NULL);5 v6 j! `: R2 C3 w4 E# ]
  7.     SketchInPlaceBuilder *sketchInPlaceBuilder1;
    / [9 z1 [1 b7 B" ^2 T& A' P  h' ^0 l: o
  8.     sketchInPlaceBuilder1 = workPart->Sketches()->CreateNewSketchInPlaceBuilder(nullSketch);' A# n2 W' D/ H  }
  9.     sketchInPlaceBuilder1->Plane()->SetMethod(PlaneTypes::MethodTypeFixedZ);
    : `9 X9 |9 B* c& G
  10.     Point3d origin1(0.0, 0.0, 0.0);
    ) S) E- k0 q" _' W, V+ x6 E
  11.     sketchInPlaceBuilder1->Plane()->SetOrigin(origin1);& @8 c2 N" t' {" L
  12.     sketchInPlaceBuilder1->Plane()->Evaluate();</p><p> // set the reference</p><p> theSession->Preferences()->Sketch()->SetCreateInferredConstraints(true);5 t: j* o5 O( B
  13.    
    . A( b) {  W0 G% _/ u2 t
  14.     theSession->Preferences()->Sketch()->SetContinuousAutoDimensioning(false);0 U( Z/ U9 F; A. w$ [6 Y# p
  15.     ) ]) b6 n" J' o4 A2 m4 n
  16.     theSession->Preferences()->Sketch()->SetDimensionLabel(Preferences::SketchPreferences::DimensionLabelTypeExpression);. d& L) ]. u% A& Y6 R
  17.     / |& Y- Z. A/ G; G
  18.     theSession->Preferences()->Sketch()->SetTextSizeFixed(true);
    + x8 O% ]' b: y
  19.    
    : h! H) S2 Z9 G
  20.     theSession->Preferences()->Sketch()->SetFixedTextSize(3.0);% E3 b0 p6 g1 I4 ]6 G5 n9 y
  21.    
    ! Z9 O7 ]$ Q, m5 B; ?  q
  22.     theSession->Preferences()->Sketch()->SetConstraintSymbolSize(3.0);
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  23.     ' f: d9 |9 O/ {
  24.     theSession->Preferences()->Sketch()->SetDisplayObjectColor(false);
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  25.    
    2 v2 J  g" x0 X7 T4 T
  26.     theSession->Preferences()->Sketch()->SetDisplayObjectName(true);</p><p>   9 t) I7 `. u% |+ c- d8 u
  27.     NXObject *nXObject1;
    % S$ T7 l( [2 P9 Y
  28.     nXObject1 = sketchInPlaceBuilder1->Commit();
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  29.    
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  30.     Sketch *sketch1(dynamic_cast<Sketch *>(nXObject1));8 U8 N( Z8 S$ S0 s) o$ n+ i7 b
  31.     Features::Feature *feature1;
    + T/ |( j! T3 O/ O4 \* ?
  32.     feature1 = sketch1->Feature();</p><p>1 [, Y1 D3 u* z- P
  33.     sketchInPlaceBuilder1->Destroy();</p><p>
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  34. sketch1->Activate(Sketch::ViewReorientFalse);* d" X; O* B% P, z# s6 t! S& r

  35. 9 q; ?8 S1 m  |3 F
  36. // define the dimensions - D* e6 T" E* c9 y3 E5 X1 D+ ~4 B
  37.     double heigth1 = this->doubleHeight1->GetProperties()->GetDouble("Value");7 Y4 h( ?/ Y' a& o
  38. double heigth2 = this->doubleHeight2->GetProperties()->GetDouble("Value");
    5 j% [0 ^, t: A  G
  39. double length = this->doubleLength->GetProperties()->GetDouble("Value");
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  40. char msg1[UF_MAX_EXP_BUFSIZE],msg2[UF_MAX_EXP_BUFSIZE],msg3[UF_MAX_EXP_BUFSIZE];
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  41. sprintf(msg1,"%f",heigth1);
    9 S6 H; u% b" B
  42. sprintf(msg2,"%f",heigth2);: H# n5 |  x- k6 N# l4 o/ c8 s
  43. sprintf(msg3,"%f",length);
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  44. Expression *height1exp,*height2exp,*lengthexp;
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  45. height1exp= workPart->Expressions()->CreateSystemExpression(msg1);
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  46. height2exp= workPart->Expressions()->CreateSystemExpression(msg2);% P- Q$ j# ?# e1 D
  47. lengthexp= workPart->Expressions()->CreateSystemExpression(msg3);) d  W% H* M5 v  X: M8 c* v
  48. // these for the dimension position! J4 _$ ?' I, a% ~
  49. Point3d dimOrigin1(-100, heigth1/2, 0.0); 7 o- O% Z: G/ k( N8 `+ N* g4 i
  50. Point3d dimOrigin2(length/2, heigth1+100, 0.0);
    : ^3 x$ O  `" R% d/ D) D
  51. Point3d dimOrigin3(length+100, heigth1-heigth2/2, 0.0);</p><p>  // add curves! Y. f! \% ~" L8 A1 z1 o
  52.     Point3d startPoint1(0.0, 0.0, 0.0);
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  53. Point3d endPoint1(0.0,heigth1,0.0);
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  54. Point3d endPoint2(length,heigth1,0.0);" R% P8 W8 k5 D- I
  55. Point3d endPoint3(length,heigth1-heigth2,0.0);
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  56.     Line *line1,*line2,*line3,*line4;
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  57.     line1 = workPart->Curves()->CreateLine(startPoint1, endPoint1);
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  58. line2 = workPart->Curves()->CreateLine(endPoint1, endPoint2);/ ^0 M0 \- o% X7 B& v, }
  59. line3 = workPart->Curves()->CreateLine(endPoint2, endPoint3);9 t( O5 r% P( T
  60. line4 = workPart->Curves()->CreateLine(endPoint3, startPoint1);
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  61. theSession->ActiveSketch()->AddGeometry(line1, Sketch::InferConstraintsOptionInferCoincidentConstraints);
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  62. theSession->ActiveSketch()->AddGeometry(line2, Sketch::InferConstraintsOptionInferCoincidentConstraints);3 y% M5 Z  w5 y- O, M9 Q
  63. theSession->ActiveSketch()->AddGeometry(line3, Sketch::InferConstraintsOptionInferCoincidentConstraints);5 A% D/ Z3 a7 s8 ~' b/ O. ^
  64. theSession->ActiveSketch()->AddGeometry(line4, Sketch::InferConstraintsOptionInferCoincidentConstraints);
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  65.    </p><p> // add constraints
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  66. //..
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  67. // for line1" V8 U7 y1 _8 C8 V9 [
  68. Sketch::ConstraintGeometry geopoint1;
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  69. geopoint1.Geometry = line1;" `  r0 n6 t$ j+ s; j% p
  70. geopoint1.PointType = Sketch::ConstraintPointTypeStartVertex;, q$ M. W4 U/ c* v8 H! l
  71. geopoint1.SplineDefiningPointIndex = 0;0 n' @  g$ a0 n% E# m4 Q3 L, d
  72. // find the (0,0,0) point7 L' T1 I' c" J3 {
  73. Sketch::ConstraintGeometry geopoint2;
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  74. Point *pointOriginal;4 ]6 C7 V# Z) t& H( L$ O; @
  75. pointOriginal = workPart->Points()->CreatePoint(sketch1->Origin());  e$ j+ l- A) p. J9 r, N. \+ W
  76. geopoint2.Geometry = pointOriginal;
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  77. geopoint2.PointType = Sketch::ConstraintPointTypeStartVertex;/ ^5 P$ j- Y+ }
  78. geopoint2.SplineDefiningPointIndex = 0;
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  79. theSession->ActiveSketch()->CreateCoincidentConstraint(geopoint1,geopoint2);</p><p> Sketch::ConstraintGeometry geoline1;  X; @3 e+ j% F/ e0 I
  80. geoline1.Geometry = line1;% Z& `9 y2 M& K, }! u" H
  81. geoline1.PointType = Sketch::ConstraintPointTypeNone;/ \: `$ s) F, N! B: j) ~
  82. geoline1.SplineDefiningPointIndex = 0;4 v* J4 i$ o+ Q* H- y0 Z  q" G
  83. theSession->ActiveSketch()->CreateVerticalConstraint(geoline1);$ c  y& f$ v9 b4 d3 E
  84. //..% V: K; O' F, P# I
  85. // for line29 b' R. A1 F! A- T
  86. Sketch::ConstraintGeometry geoline2;8 t! Y, o; ]) P9 C7 R. N
  87. geoline2.Geometry = line2;  p' _/ b) j( [% c
  88. geoline2.PointType = Sketch::ConstraintPointTypeNone;* ~  G) a* H$ `  o
  89. geoline2.SplineDefiningPointIndex = 0;9 X) }- S/ a+ r7 L+ l
  90. theSession->ActiveSketch()->CreateHorizontalConstraint(geoline2);
    5 f) Y; a( @+ K- a/ z% L  c
  91. //..
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  92. // for line3- M; P; b# R# P7 G& J
  93. Sketch::ConstraintGeometry geoline3;
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  94. geoline3.Geometry = line3;+ t2 @4 t) z/ Q
  95. geoline3.PointType = Sketch::ConstraintPointTypeNone;
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  96. geoline3.SplineDefiningPointIndex = 0;- z4 V- Y+ ~( ?+ v/ a: H0 ?7 b9 L
  97. theSession->ActiveSketch()->CreateVerticalConstraint(geoline3);1 t  H) g1 T7 ?0 y2 Q/ u+ {
  98. // use this method to create the constraints  P9 C5 Q! Z: m: I5 v
  99. /*SketchConstraintBuilder *line3constraint;
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  100. line3constraint= workPart->Sketches()->CreateConstraintBuilder();7 u8 X1 Y+ ^7 i
  101. line3constraint->GeometryToConstrain()->Add(line3);" J* W, N/ N* R$ \1 o8 f  w+ V
  102. line3constraint->SetConstraintType(SketchConstraintBuilder::ConstraintVertical);
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  103. line3constraint->Commit();+ T/ q; M7 ]  y$ {  x- w7 y9 L
  104.     line3constraint->Destroy();*/
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  105.    
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  106. // add dimension
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  107. //..
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  108. // for line13 R1 l# }; ^: P- i$ g) O0 o
  109. Sketch::DimensionGeometry dimobject1_start;
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  110. dimobject1_start.AssocType = Sketch::AssocTypeStartPoint;
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  111. dimobject1_start.AssocValue = 0;: p9 K- C, u; `. C# y
  112. dimobject1_start.Geometry = line1;
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  113. dimobject1_start.HelpPoint.X = 0 ;0 i6 z, b! @9 |. w6 T4 K
  114. dimobject1_start.HelpPoint.Y = 0 ;9 @8 S: N: x  k  G/ a
  115. dimobject1_start.HelpPoint.Z = 0 ;
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  116. NXObject *nullNXObject1(NULL);( }3 t0 v$ m& G
  117. dimobject1_start.View = nullNXObject1;</p><p> Sketch::DimensionGeometry dimobject1_end;4 x) Y, `9 c$ e2 I7 ?3 ?7 q
  118. dimobject1_end.AssocType = Sketch::AssocTypeEndPoint;
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  119. dimobject1_end.AssocValue = 0;
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  120. dimobject1_end.Geometry = line1;
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  121. dimobject1_end.HelpPoint.X = 0 ;" ]  C' U% @6 H: H5 ]/ m+ W
  122. dimobject1_end.HelpPoint.Y = 0 ;
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  123. dimobject1_end.HelpPoint.Z = 0 ;+ y( u3 A2 o* D/ k! h) a9 |  m' D
  124. dimobject1_end.View = nullNXObject1;</p><p> SketchDimensionalConstraint *sketchDimensionalConstraint1 = theSession->ActiveSketch()->CreateDimension(Sketch::ConstraintTypeVerticalDim,dimobject1_start,dimobject1_end,dimOrigin1,height1exp,Sketch::DimensionOptionCreateAsDriving);</p><p>    Annotations::Dimension *dimension1;7 i) F/ H. T% Z% A0 H6 x
  125.     dimension1 = sketchDimensionalConstraint1->AssociatedDimension();</p><p>( J% W: m# H0 l( d0 L2 s3 O' m
  126. //..
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  127. // for line2/ v# i& ?: G5 M* B3 L6 `
  128. Sketch::DimensionGeometry dimobject2_start;
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  129. dimobject2_start.AssocType = Sketch::AssocTypeStartPoint;' c& m9 s6 E4 I8 h* q9 J
  130. dimobject2_start.AssocValue = 0;
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  131. dimobject2_start.Geometry = line2;
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  132. dimobject2_start.HelpPoint.X = 0 ;; d4 @4 `* f% I/ F/ a6 Y! E
  133. dimobject2_start.HelpPoint.Y = 0 ;8 r) [9 Z4 r0 J
  134. dimobject2_start.HelpPoint.Z = 0 ;
    3 R- a! a) Q. Y! J+ p
  135. dimobject2_start.View = nullNXObject1;</p><p> Sketch::DimensionGeometry dimobject2_end;
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  136. dimobject2_end.AssocType = Sketch::AssocTypeEndPoint;
    . V- J' C& l; V. c
  137. dimobject2_end.AssocValue = 0;
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  138. dimobject2_end.Geometry = line2;; m: ^& S; }8 P2 s8 Q# J8 }; M
  139. dimobject2_end.HelpPoint.X = 0 ;
      \+ H$ q3 s: C& @. A
  140. dimobject2_end.HelpPoint.Y = 0 ;3 H# [  q7 b" k+ ?0 O1 X3 ^
  141. dimobject2_end.HelpPoint.Z = 0 ;
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  142. dimobject2_end.View = nullNXObject1;</p><p> SketchDimensionalConstraint *sketchDimensionalConstraint2 = theSession->ActiveSketch()->CreateDimension(Sketch::ConstraintTypeHorizontalDim,dimobject2_start,dimobject2_end,dimOrigin2,lengthexp,Sketch::DimensionOptionCreateAsDriving);</p><p>    Annotations::Dimension *dimension2;7 G$ b1 ^/ C/ a2 @( U
  143.     dimension2 = sketchDimensionalConstraint2->AssociatedDimension();</p><p> // for line3
    $ Z. V$ k  C8 z  B
  144. Sketch::DimensionGeometry dimobject3_start;) d8 A7 C" A0 {0 g7 S
  145. dimobject3_start.AssocType = Sketch::AssocTypeStartPoint;
    3 B! C4 J+ ~. m( ^) Q$ f5 h2 e
  146. dimobject3_start.AssocValue = 0;3 M8 [# g: z0 d5 ]) |& U
  147. dimobject3_start.Geometry = line3;. K- E5 Y/ U; {# C5 T1 b, I
  148. dimobject3_start.HelpPoint.X = 0 ;  P& T  P) H0 u1 a: @' g1 B4 T
  149. dimobject3_start.HelpPoint.Y = 0 ;7 j/ Y9 d0 f9 i3 J, _
  150. dimobject3_start.HelpPoint.Z = 0 ;
    * P7 A3 L& Q& E4 i1 j. \
  151. dimobject3_start.View = nullNXObject1;</p><p> Sketch::DimensionGeometry dimobject3_end;
    5 M0 w* b5 ^. G. b  ~( X! H& K
  152. dimobject3_end.AssocType = Sketch::AssocTypeEndPoint;
    ( `" e) \+ V/ ?1 s) E7 y2 A8 c. J
  153. dimobject3_end.AssocValue = 0;1 \' h( p" B" J* _' }
  154. dimobject3_end.Geometry = line3;; u0 L$ k6 M5 R, E
  155. dimobject3_end.HelpPoint.X = 0 ;
    % d- _/ G) x' n. E* I6 f
  156. dimobject3_end.HelpPoint.Y = 0 ;
    / y" ]; y  p* j
  157. dimobject3_end.HelpPoint.Z = 0 ;0 q0 Y" I4 n! t: I! H
  158. dimobject3_end.View = nullNXObject1;</p><p> SketchDimensionalConstraint *sketchDimensionalConstraint3 = theSession->ActiveSketch()->CreateDimension(Sketch::ConstraintTypeVerticalDim,dimobject3_start,dimobject3_end,dimOrigin3,height2exp,Sketch::DimensionOptionCreateAsDriving);</p><p>    Annotations::Dimension *dimension3;  z" G+ b3 a6 V2 ?' y% Y
  159.     dimension3 = sketchDimensionalConstraint3->AssociatedDimension();</p><p> //workPart->Expressions()->Delete(height1exp);</p><p> theSession->ActiveSketch()->Update();</p><p> theSession->ActiveSketch()->Deactivate(Sketch::ViewReorientFalse,Sketch::UpdateLevelModel);9 k* K# j6 k  f
  160. 6 t: _3 y2 t' |' \" o
  161. /*</p><p> // revolve the body</p><p> */
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  162. Features::Feature *nullFeatures_Feature(NULL);
    % a. f$ t! I: ~, m+ }
  163. Features::RevolveBuilder *revolveBuilder1;# e+ m4 a- \9 ]' F7 F4 x% h  h
  164.     revolveBuilder1 = workPart->Features()->CreateRevolveBuilder(nullFeatures_Feature);4 m" g8 [- a8 p6 b$ h3 E: r) G
  165.     revolveBuilder1->Limits()->StartExtend()->Value()->SetRightHandSide("0");" h1 ~9 \* L+ l: |
  166.     revolveBuilder1->Limits()->EndExtend()->Value()->SetRightHandSide("360");
    6 m! b8 {, A6 K  h' T$ t2 Y7 B
  167.     revolveBuilder1->SetTolerance(0.01);
    + [$ B0 {/ {, i
  168. Section *section1;& D! [: z( o& a: [8 h- i
  169.     section1 = workPart->Sections()->CreateSection(0.0095, 0.01, 0.5);" y, D* q7 S/ w$ K
  170.     revolveBuilder1->SetSection(section1);
    3 c! G$ W' {6 l
  171.    
    % Y# s0 p" L# e6 G6 J! @* g
  172. section1->SetAllowedEntityTypes(Section::AllowTypesOnlyCurves);
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  173.    
    2 n' q3 |+ e+ u$ N  h, @, B4 q+ s
  174. std::vector<Features::Feature *> features1(1);
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  175.     features1[0] = feature1;! C+ p* c* F: w
  176.     CurveFeatureRule *curveFeatureRule1;
    ) O( ], d7 C6 \0 Y
  177.     curveFeatureRule1 = workPart->ScRuleFactory()->CreateRuleCurveFeature(features1);
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  178.     2 U; A9 u9 }: n& ~, u
  179.     section1->AllowSelfIntersection(false);
    4 d! V+ U% [% I9 N* x  e) _
  180.     7 f9 y: u9 O( T# U" Y
  181.     std::vector<SelectionIntentRule *> rules1(1);
    $ _9 h4 c2 u5 r8 S7 b
  182.     rules1[0] = curveFeatureRule1;* _0 Q- c% O8 ^1 j+ W. [
  183.     NXObject *nullNXObject(NULL);) O& Z$ R( o0 }0 K
  184.     Point3d helpPoint1(0.0, 0.0, 0.0);
    5 q7 X, K3 t+ X7 B3 r: _* v
  185.     section1->AddToSection(rules1, nullNXObject, nullNXObject, nullNXObject, helpPoint1, Section::ModeCreate, false);
    " f6 i  z4 m9 P3 ~- ]" T

  186. 1 n# j/ C7 V' ?
  187. // define the axis</p><p>    Direction *direction1;$ `; D. `  T4 y/ C5 z
  188.     direction1 = workPart->Directions()->CreateDirection(line2, SenseForward, SmartObject::UpdateOptionWithinModeling);
    ! p, {( \" u" J
  189.     " L0 _8 w  S; Q3 k
  190.     Point *nullPoint(NULL);) l, _9 r/ U# G0 I6 V
  191.     Axis *axis1;
    / W' O* T- O# E7 d3 G- K( s0 f
  192.     axis1 = workPart->Axes()->CreateAxis(nullPoint, direction1, SmartObject::UpdateOptionWithinModeling);
    / N+ Z! H; [# _, c; {
  193. ) t* C  I6 ^+ A& O  a: U9 F9 j% A
  194. revolveBuilder1->SetAxis(axis1);</p><p> // commit feature
    $ H" Z2 }3 [" X4 a$ n. G( U8 ^  k: x
  195. Features::Feature *feature2;2 {9 K" c" [0 w4 S
  196.     feature2 = revolveBuilder1->CommitFeature();+ F" L5 O8 e! }. N5 U' d8 ^  ^, a
  197. revolveBuilder1->Destroy();+ i& V" t6 h& s9 W/ G' p
  198. }</p><p>}% L5 m" e  t$ H6 j
  199. </p><p> </p>
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