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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 4966 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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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。0 A; p& n& b* T1 }$ a% @
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  C0 r/ [' E9 \8 c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。
6 }4 O5 a5 t- C7 N. R; l仅供参考!; z+ R$ V% s6 E- z* e

* |* ]; C. X! S; g效果如下:6 ?! Z+ n5 s3 d4 L

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$ S4 Q2 H3 t; {; J) ~

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()- W+ B1 f( Y' o* |
  2. {</p><p>{
    " v3 S9 W0 Y. r/ x6 u
  3.     Session *theSession = Session::GetSession();
    0 I# \) J5 D' D  ]$ v5 [
  4.     Part *workPart(theSession->Parts()->Work());
    7 ~+ B0 z9 j  V
  5.     Part *displayPart(theSession->Parts()->Display());
    : i# N  C. T2 b
  6.     Sketch *nullSketch(NULL);
    3 a- w' |" |+ g/ Y9 W0 H
  7.     SketchInPlaceBuilder *sketchInPlaceBuilder1;) ?" s' z$ W' @6 Y6 t
  8.     sketchInPlaceBuilder1 = workPart->Sketches()->CreateNewSketchInPlaceBuilder(nullSketch);% k1 ~$ p/ W9 U5 t+ u( a, T
  9.     sketchInPlaceBuilder1->Plane()->SetMethod(PlaneTypes::MethodTypeFixedZ);! ~3 k# W  O% y8 |
  10.     Point3d origin1(0.0, 0.0, 0.0);% d9 j( e! C6 `9 G
  11.     sketchInPlaceBuilder1->Plane()->SetOrigin(origin1);
    # a+ T( R, W' E( b2 o
  12.     sketchInPlaceBuilder1->Plane()->Evaluate();</p><p> // set the reference</p><p> theSession->Preferences()->Sketch()->SetCreateInferredConstraints(true);5 |* w0 O6 r4 Y( P
  13.    
    * V3 q; }0 {8 q- _% L( B
  14.     theSession->Preferences()->Sketch()->SetContinuousAutoDimensioning(false);( W- w) D# F: w8 M; s
  15.    
    , |* z: [; \/ R" y, e5 t# v  {7 z+ R
  16.     theSession->Preferences()->Sketch()->SetDimensionLabel(Preferences::SketchPreferences::DimensionLabelTypeExpression);
    2 N1 S6 k4 D$ E$ E0 j
  17.    
    ! F% u" q( v" E# }+ S4 [8 ~9 {) H
  18.     theSession->Preferences()->Sketch()->SetTextSizeFixed(true);0 Z3 J4 ]0 ]' n( y% ?9 u' _
  19.     / F% q/ i8 Y; v; f9 n% \+ F
  20.     theSession->Preferences()->Sketch()->SetFixedTextSize(3.0);& z% _6 H+ `% F
  21.    
    7 F' i, r. F* h
  22.     theSession->Preferences()->Sketch()->SetConstraintSymbolSize(3.0);+ M. `. z5 E  Z
  23.    
    , s6 p4 [* T$ S' w* z
  24.     theSession->Preferences()->Sketch()->SetDisplayObjectColor(false);' R7 I: S6 X( K4 Z" B9 P0 y
  25.     9 x# Q0 }! R5 s% M- E3 v
  26.     theSession->Preferences()->Sketch()->SetDisplayObjectName(true);</p><p>   ; z1 Y9 l) \1 D3 x4 d; H
  27.     NXObject *nXObject1;
    % R) j  x1 w+ w$ ^9 }& J# M
  28.     nXObject1 = sketchInPlaceBuilder1->Commit();" R) Q$ ?8 S5 t( x$ Z7 C0 O0 U, T. |
  29.    
    8 B/ r- K) E7 k5 Q. v2 O; t# F
  30.     Sketch *sketch1(dynamic_cast<Sketch *>(nXObject1));+ L2 H, v+ ^/ ~8 o
  31.     Features::Feature *feature1;& G' d, F6 G8 c: k
  32.     feature1 = sketch1->Feature();</p><p>
    ; x" R( ?# x  G" @0 f
  33.     sketchInPlaceBuilder1->Destroy();</p><p>1 T3 h( V; g- P+ Q# \/ ^- A4 h  C
  34. sketch1->Activate(Sketch::ViewReorientFalse);
    - T  A& F% c' f* }
  35. % u- ~+ h- j* ?
  36. // define the dimensions
    . i  e( Q0 p3 ^: @6 G, |' s% O
  37.     double heigth1 = this->doubleHeight1->GetProperties()->GetDouble("Value");
    : z; O* K7 q7 [) d7 n) p7 Y
  38. double heigth2 = this->doubleHeight2->GetProperties()->GetDouble("Value");  \  C$ z. h) Z& H" Z6 x* k; n
  39. double length = this->doubleLength->GetProperties()->GetDouble("Value");
    $ S* l3 S! G7 {! P1 f
  40. char msg1[UF_MAX_EXP_BUFSIZE],msg2[UF_MAX_EXP_BUFSIZE],msg3[UF_MAX_EXP_BUFSIZE];  g) ?: T) P' V( o, m. V
  41. sprintf(msg1,"%f",heigth1);
    , ]  n: ]( p& Z2 u8 m0 f; }
  42. sprintf(msg2,"%f",heigth2);
    6 Z- V* z1 I* R; [, u% O
  43. sprintf(msg3,"%f",length);& x1 K' x1 h7 C5 U) y9 g7 H) p
  44. Expression *height1exp,*height2exp,*lengthexp;- \, H! g6 y4 s% }) P
  45. height1exp= workPart->Expressions()->CreateSystemExpression(msg1);# d! d7 q8 e, P" e1 C
  46. height2exp= workPart->Expressions()->CreateSystemExpression(msg2);: l7 [6 G2 E% c5 ]/ R" c3 {+ S; b9 _
  47. lengthexp= workPart->Expressions()->CreateSystemExpression(msg3);2 |( d0 b% g8 o+ ?7 Z  S( A5 R1 ]
  48. // these for the dimension position
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  49. Point3d dimOrigin1(-100, heigth1/2, 0.0); % u6 p$ T9 Y4 P7 d! n
  50. Point3d dimOrigin2(length/2, heigth1+100, 0.0);
    - P( [1 H% b  i- [
  51. Point3d dimOrigin3(length+100, heigth1-heigth2/2, 0.0);</p><p>  // add curves
    - g( f* s4 @; w+ G. B/ @& I7 h
  52.     Point3d startPoint1(0.0, 0.0, 0.0);$ s- q3 ?4 A; {0 N" r
  53. Point3d endPoint1(0.0,heigth1,0.0);( \% z( q: ]" x/ ]7 L) c2 B- z
  54. Point3d endPoint2(length,heigth1,0.0);
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  55. Point3d endPoint3(length,heigth1-heigth2,0.0);
    & x. C+ }+ ?+ u& [# O
  56.     Line *line1,*line2,*line3,*line4;
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  57.     line1 = workPart->Curves()->CreateLine(startPoint1, endPoint1);
      a! A. {: U6 {
  58. line2 = workPart->Curves()->CreateLine(endPoint1, endPoint2);
    " s1 M9 _5 }' R  u; i
  59. line3 = workPart->Curves()->CreateLine(endPoint2, endPoint3);5 Z! m0 D& U1 V" j0 Q& W( U# [
  60. line4 = workPart->Curves()->CreateLine(endPoint3, startPoint1);
    - \  V' q% ]  {3 w; \$ H4 ]
  61. theSession->ActiveSketch()->AddGeometry(line1, Sketch::InferConstraintsOptionInferCoincidentConstraints);
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  62. theSession->ActiveSketch()->AddGeometry(line2, Sketch::InferConstraintsOptionInferCoincidentConstraints);9 C9 h' w3 E4 v+ Z, S
  63. theSession->ActiveSketch()->AddGeometry(line3, Sketch::InferConstraintsOptionInferCoincidentConstraints);
    - ?" }! u* P; S( P& ~3 v7 R  v: m, y
  64. theSession->ActiveSketch()->AddGeometry(line4, Sketch::InferConstraintsOptionInferCoincidentConstraints);
    - ^' u  C* I5 }* q
  65.    </p><p> // add constraints
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  66. //..) ~" g  ]( I: l% N! V; \" x8 @
  67. // for line1
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  68. Sketch::ConstraintGeometry geopoint1;
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  69. geopoint1.Geometry = line1;( A% V: X2 R* ^) D6 L+ E: e
  70. geopoint1.PointType = Sketch::ConstraintPointTypeStartVertex;
    8 M, f7 ~3 q: v+ A
  71. geopoint1.SplineDefiningPointIndex = 0;4 X7 @+ A5 t: N
  72. // find the (0,0,0) point" w, {! P  L2 C1 F) E0 t
  73. Sketch::ConstraintGeometry geopoint2; # i' T- C; ?) E
  74. Point *pointOriginal;7 H# N% k0 w" O0 {$ Z
  75. pointOriginal = workPart->Points()->CreatePoint(sketch1->Origin());7 T9 V+ {" ~% P( t6 h' {0 r0 |5 G
  76. geopoint2.Geometry = pointOriginal;3 J6 F' }, H0 }9 n
  77. geopoint2.PointType = Sketch::ConstraintPointTypeStartVertex;! f, M8 R' ~5 B& z  s
  78. geopoint2.SplineDefiningPointIndex = 0;; e2 G7 x4 d  I3 N' ~
  79. theSession->ActiveSketch()->CreateCoincidentConstraint(geopoint1,geopoint2);</p><p> Sketch::ConstraintGeometry geoline1;, A% \4 `0 y  c  U" \! T& X; N
  80. geoline1.Geometry = line1;  S6 L8 i0 n$ G& N0 b0 Q
  81. geoline1.PointType = Sketch::ConstraintPointTypeNone;' d( t: o; A6 Z- h  X' G. r2 |, w
  82. geoline1.SplineDefiningPointIndex = 0;- w% j$ w6 k- p/ a5 L
  83. theSession->ActiveSketch()->CreateVerticalConstraint(geoline1);
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  84. //..
      {6 M. K5 w, c# q8 X
  85. // for line2
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  86. Sketch::ConstraintGeometry geoline2;& E# P. k8 r8 F/ n+ ?4 X
  87. geoline2.Geometry = line2;9 y6 Q& A6 `5 W* X7 p# F3 t
  88. geoline2.PointType = Sketch::ConstraintPointTypeNone;" S8 d. F. V) b$ E6 |
  89. geoline2.SplineDefiningPointIndex = 0;; d+ b( L6 R, S* l, Q0 p1 e  }; R
  90. theSession->ActiveSketch()->CreateHorizontalConstraint(geoline2);
    ! b  q% ?+ K9 y- K# J
  91. //..& Y  a' f( C7 a4 ]7 Z
  92. // for line3! J# J& D5 T% A; G/ O: u3 S0 `' h
  93. Sketch::ConstraintGeometry geoline3;
    % l  i9 p# s( t9 X6 T# s
  94. geoline3.Geometry = line3;
    # m6 y3 p; p1 l) ?. p% E
  95. geoline3.PointType = Sketch::ConstraintPointTypeNone;
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  96. geoline3.SplineDefiningPointIndex = 0;
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  97. theSession->ActiveSketch()->CreateVerticalConstraint(geoline3);
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  98. // use this method to create the constraints
    + t% i& W8 D% @2 l$ Y0 o
  99. /*SketchConstraintBuilder *line3constraint;) n% ?: `' ?$ V
  100. line3constraint= workPart->Sketches()->CreateConstraintBuilder();* g4 F+ r9 |# E, L5 X% @2 I  R
  101. line3constraint->GeometryToConstrain()->Add(line3);
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  102. line3constraint->SetConstraintType(SketchConstraintBuilder::ConstraintVertical);
    , g: {6 }8 b0 w, p
  103. line3constraint->Commit();, f5 X7 D2 H8 U. o! d4 O
  104.     line3constraint->Destroy();*/% b$ I* `& t- O: l
  105.     4 i# V* J8 i6 U
  106. // add dimension
    3 _6 G& q% e8 x1 K4 p. A) P
  107. //..& y0 Y8 Z2 b: N$ D$ |- J+ S
  108. // for line1
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  109. Sketch::DimensionGeometry dimobject1_start;) [, Y) [5 k' u5 w( _, M7 {: R
  110. dimobject1_start.AssocType = Sketch::AssocTypeStartPoint;
    / b4 L! c& X& ]  R# ]
  111. dimobject1_start.AssocValue = 0;* x# B7 c6 t0 Q( E% Y2 W
  112. dimobject1_start.Geometry = line1;
    0 ?% U2 y4 V7 t8 j3 E1 T& l8 \. y5 T
  113. dimobject1_start.HelpPoint.X = 0 ;1 O9 B# S7 F+ a, ^+ F2 ]
  114. dimobject1_start.HelpPoint.Y = 0 ;( x* G" s/ }$ q' x1 E: `% X
  115. dimobject1_start.HelpPoint.Z = 0 ;4 U! f8 a- `  j$ v: _& [) H+ [
  116. NXObject *nullNXObject1(NULL);9 J+ g9 D" S: g9 ~. \# ~! M
  117. dimobject1_start.View = nullNXObject1;</p><p> Sketch::DimensionGeometry dimobject1_end;
    - S' a, ~: E7 _1 q  Z
  118. dimobject1_end.AssocType = Sketch::AssocTypeEndPoint;  p& l  M( [3 L( ^
  119. dimobject1_end.AssocValue = 0;5 k* q* o* T" }/ q3 x
  120. dimobject1_end.Geometry = line1;
    " C# V! s( {0 M$ H6 V
  121. dimobject1_end.HelpPoint.X = 0 ;
    + l0 C% Q4 Z2 `+ a9 U5 r' O4 K
  122. dimobject1_end.HelpPoint.Y = 0 ;3 W* z) ~  f$ f  H  {$ [- s' ~
  123. dimobject1_end.HelpPoint.Z = 0 ;
    ( Z. l$ a. n3 t1 T, I! y
  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;
      L& \  ^- ]; t" O/ R/ G1 g# m
  125.     dimension1 = sketchDimensionalConstraint1->AssociatedDimension();</p><p>
    5 t7 _0 e% x3 j4 x9 Z& B3 l
  126. //.., d- A: Y1 A$ Y0 {" m# s
  127. // for line29 ^0 F3 G& o7 ]/ O* H0 `
  128. Sketch::DimensionGeometry dimobject2_start;& N4 ]- ~! @* \
  129. dimobject2_start.AssocType = Sketch::AssocTypeStartPoint;( _. k$ t  h* |: |  D% U
  130. dimobject2_start.AssocValue = 0;' Z% m2 |& w. o- }7 W
  131. dimobject2_start.Geometry = line2;
    # b, i' h6 u4 N$ u- p
  132. dimobject2_start.HelpPoint.X = 0 ;- N4 e8 i; H6 M* l* r. g1 ]) G9 b
  133. dimobject2_start.HelpPoint.Y = 0 ;3 B6 T  v. Y0 B* l5 U
  134. dimobject2_start.HelpPoint.Z = 0 ;- f& ?2 n! S$ {# ~$ r
  135. dimobject2_start.View = nullNXObject1;</p><p> Sketch::DimensionGeometry dimobject2_end;/ o) L. b! Q# o# L4 [0 Q; |
  136. dimobject2_end.AssocType = Sketch::AssocTypeEndPoint;' S1 o. u$ F2 p/ S
  137. dimobject2_end.AssocValue = 0;
    2 a" z+ D% C- m( b+ _+ U
  138. dimobject2_end.Geometry = line2;. C1 `1 H2 h6 z0 o
  139. dimobject2_end.HelpPoint.X = 0 ;# x% F! s! [. n$ t" Y
  140. dimobject2_end.HelpPoint.Y = 0 ;- A6 U; i5 z; j: _& ~8 e( ~
  141. dimobject2_end.HelpPoint.Z = 0 ;
    - f9 t0 w/ M7 }: y7 f/ ?
  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;4 V3 k& c' l! f, K3 n
  143.     dimension2 = sketchDimensionalConstraint2->AssociatedDimension();</p><p> // for line3( f7 p: g7 O" Z. |
  144. Sketch::DimensionGeometry dimobject3_start;
    - m( {% V+ s! N' h- t. ]
  145. dimobject3_start.AssocType = Sketch::AssocTypeStartPoint;- |4 N; g* P7 r$ U2 H8 m6 v, o  Y
  146. dimobject3_start.AssocValue = 0;
    % k% \" l! i& y+ z: p2 n
  147. dimobject3_start.Geometry = line3;
      d% m5 l& Q9 b3 P& |, i- i4 |
  148. dimobject3_start.HelpPoint.X = 0 ;
    5 u! H6 v" O8 Z/ n3 w. v6 f
  149. dimobject3_start.HelpPoint.Y = 0 ;
    . d& ]1 F% W7 x6 C
  150. dimobject3_start.HelpPoint.Z = 0 ;$ T1 h& \# ]  b
  151. dimobject3_start.View = nullNXObject1;</p><p> Sketch::DimensionGeometry dimobject3_end;
    0 N5 o6 s! n4 w" p( Q6 N7 {
  152. dimobject3_end.AssocType = Sketch::AssocTypeEndPoint;
    ' g$ j0 i- A! b& Q
  153. dimobject3_end.AssocValue = 0;# C6 J% F5 c$ @# P8 H  }  f
  154. dimobject3_end.Geometry = line3;# r" ]: m0 s8 O
  155. dimobject3_end.HelpPoint.X = 0 ;
    0 \, {# x+ y( f( n7 M  Z& Z
  156. dimobject3_end.HelpPoint.Y = 0 ;
      N: ^4 E9 k* P( ]  Q/ Z. {; Z
  157. dimobject3_end.HelpPoint.Z = 0 ;
    8 q/ a5 f  D: D+ Z$ K
  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;
    2 o7 p) H* {( A4 o7 J
  159.     dimension3 = sketchDimensionalConstraint3->AssociatedDimension();</p><p> //workPart->Expressions()->Delete(height1exp);</p><p> theSession->ActiveSketch()->Update();</p><p> theSession->ActiveSketch()->Deactivate(Sketch::ViewReorientFalse,Sketch::UpdateLevelModel);7 n. O" n' g/ ~' B( _+ u1 g( e

  160. $ `$ `4 M1 ]* f( n# X
  161. /*</p><p> // revolve the body</p><p> */
    6 E1 i  ?1 p% e
  162. Features::Feature *nullFeatures_Feature(NULL);) S# p, E) d7 ^4 |/ e2 u7 f9 _
  163. Features::RevolveBuilder *revolveBuilder1;
    + @$ C+ H" p3 G# \- m0 _, p
  164.     revolveBuilder1 = workPart->Features()->CreateRevolveBuilder(nullFeatures_Feature);; B$ e2 I5 [" [( v
  165.     revolveBuilder1->Limits()->StartExtend()->Value()->SetRightHandSide("0");
    3 e2 W0 I3 s& q* g* a, A- K7 h( Q
  166.     revolveBuilder1->Limits()->EndExtend()->Value()->SetRightHandSide("360");
    , }( h* L: g' G
  167.     revolveBuilder1->SetTolerance(0.01);
    ! B! o1 m* P7 |& P! i. s% m
  168. Section *section1;  x  E% {- D: S( d
  169.     section1 = workPart->Sections()->CreateSection(0.0095, 0.01, 0.5);: F0 I6 j# ~6 W+ t, B7 }- N
  170.     revolveBuilder1->SetSection(section1);
    8 ~# c( U) D9 a: \% ]* ~
  171.    
    ) L; k$ u5 V( M9 P  u, \& {. B! }
  172. section1->SetAllowedEntityTypes(Section::AllowTypesOnlyCurves);
    # u: n) D2 x" b/ V; k( \
  173.     0 n  J2 q' \7 v( `0 \% L/ M
  174. std::vector<Features::Feature *> features1(1);7 P2 Z" a' ~. Z& l* {
  175.     features1[0] = feature1;
    $ p" n2 {- X0 m; T* A
  176.     CurveFeatureRule *curveFeatureRule1;
    2 r* s+ L5 h, Q7 A5 _0 X
  177.     curveFeatureRule1 = workPart->ScRuleFactory()->CreateRuleCurveFeature(features1);
    7 W% n4 L* y$ C! x
  178.    
    # ?% g8 V' b. N9 B& _
  179.     section1->AllowSelfIntersection(false);" H/ E* j( l% A) ~: p* P9 Y# d
  180.    
    $ I) Z; Z3 [, G+ p$ K
  181.     std::vector<SelectionIntentRule *> rules1(1);
    + q8 s9 [0 x0 \. Q) M
  182.     rules1[0] = curveFeatureRule1;* j* ?  ]1 m& y  C
  183.     NXObject *nullNXObject(NULL);# P$ ^6 D$ e, O4 L2 w3 }
  184.     Point3d helpPoint1(0.0, 0.0, 0.0);
    ) Q7 k6 o* `& z' ~' N
  185.     section1->AddToSection(rules1, nullNXObject, nullNXObject, nullNXObject, helpPoint1, Section::ModeCreate, false);8 ]' h! O( U+ L3 ?' U. g
  186. % x5 j0 B! q0 x% w- F
  187. // define the axis</p><p>    Direction *direction1;+ p7 t! j+ [, ]1 p  b
  188.     direction1 = workPart->Directions()->CreateDirection(line2, SenseForward, SmartObject::UpdateOptionWithinModeling);: _9 i9 O* l: ~2 ^1 F7 ~8 Z
  189.    
    $ ?% c, r, P+ g/ M$ _# w
  190.     Point *nullPoint(NULL);2 v3 ^$ {% Q% n9 |
  191.     Axis *axis1;
    / O9 ^, j$ b3 e$ _0 n
  192.     axis1 = workPart->Axes()->CreateAxis(nullPoint, direction1, SmartObject::UpdateOptionWithinModeling);$ ^4 u5 s/ k8 f

  193. - j7 Y0 O+ O3 k, t
  194. revolveBuilder1->SetAxis(axis1);</p><p> // commit feature- A& Q) |. n- U, p! O1 N
  195. Features::Feature *feature2;
    " V( w3 i* _% R7 p$ b% Y& y6 e
  196.     feature2 = revolveBuilder1->CommitFeature();1 |& g* b+ V: Y
  197. revolveBuilder1->Destroy();" n% f) t4 U" x  G. h" f0 g, _4 C$ }
  198. }</p><p>}
    ( R2 I$ Y* ]. c" O% g6 B7 d
  199. </p><p> </p>
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