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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 4953 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。
9 v4 q- f% O- K  {' |; u' Y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。
8 c3 F$ D7 ?/ n' H6 e$ S" @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。
; h+ h+ R9 E. G仅供参考!% k4 {! f. @: k$ A& _0 T( D  n
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效果如下:
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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()" `2 x" }" L. {0 k5 K
  2. {</p><p>{: e! Y+ i7 T; v8 B" S3 _
  3.     Session *theSession = Session::GetSession();' H( N3 b, q3 l6 k
  4.     Part *workPart(theSession->Parts()->Work());
    , ]- ]3 E' S. s6 A/ o2 N
  5.     Part *displayPart(theSession->Parts()->Display());9 {6 s- d+ a) q- j
  6.     Sketch *nullSketch(NULL);2 D" v% ^$ Y# G9 g
  7.     SketchInPlaceBuilder *sketchInPlaceBuilder1;! |! L2 E! j8 o, Y
  8.     sketchInPlaceBuilder1 = workPart->Sketches()->CreateNewSketchInPlaceBuilder(nullSketch);* _, @8 u5 o, P, F: n' i& E
  9.     sketchInPlaceBuilder1->Plane()->SetMethod(PlaneTypes::MethodTypeFixedZ);
    ; C* B% M1 L2 p) Q
  10.     Point3d origin1(0.0, 0.0, 0.0);6 ?, ^; {8 Q3 U, f
  11.     sketchInPlaceBuilder1->Plane()->SetOrigin(origin1);3 q( h: [6 e5 L" S- U' G
  12.     sketchInPlaceBuilder1->Plane()->Evaluate();</p><p> // set the reference</p><p> theSession->Preferences()->Sketch()->SetCreateInferredConstraints(true);
    $ Z; z9 u" r& [# x3 L
  13.     / U0 t( h" }& f/ \( M8 E2 X
  14.     theSession->Preferences()->Sketch()->SetContinuousAutoDimensioning(false);" ]2 u! Q5 q2 K2 ]! z
  15.     1 E2 g' o, A4 d! c
  16.     theSession->Preferences()->Sketch()->SetDimensionLabel(Preferences::SketchPreferences::DimensionLabelTypeExpression);! q3 C- k, ]" d7 i+ T
  17.     ; \+ K5 ^- s7 e. Y- y
  18.     theSession->Preferences()->Sketch()->SetTextSizeFixed(true);3 f* Y: f/ n4 @/ \
  19.     $ P! f8 E2 g/ {2 Z) x3 [
  20.     theSession->Preferences()->Sketch()->SetFixedTextSize(3.0);7 C, m! J: t! h) P9 W
  21.    
    7 f1 Q" |+ u8 I9 E* z! V8 O, U8 b
  22.     theSession->Preferences()->Sketch()->SetConstraintSymbolSize(3.0);4 g! D+ l. \: @! i+ W
  23.     + i, {) b9 N9 z
  24.     theSession->Preferences()->Sketch()->SetDisplayObjectColor(false);
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  25.     5 f( K+ f1 g% h* {, m7 k. U" N
  26.     theSession->Preferences()->Sketch()->SetDisplayObjectName(true);</p><p>   2 F9 h* s* Y: \7 h
  27.     NXObject *nXObject1;+ c% U- }- V0 S
  28.     nXObject1 = sketchInPlaceBuilder1->Commit();
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  29.    
    7 d. v9 F: W! j  c
  30.     Sketch *sketch1(dynamic_cast<Sketch *>(nXObject1));
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  31.     Features::Feature *feature1;
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  32.     feature1 = sketch1->Feature();</p><p>! I$ _( j, V" B) {4 Y) {. f! M1 G7 z* I' w
  33.     sketchInPlaceBuilder1->Destroy();</p><p>
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  34. sketch1->Activate(Sketch::ViewReorientFalse);
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  35. - R- ~! R, Z8 z2 e& z; d
  36. // define the dimensions
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  37.     double heigth1 = this->doubleHeight1->GetProperties()->GetDouble("Value");
    4 W+ L6 Q" X( d. Z
  38. double heigth2 = this->doubleHeight2->GetProperties()->GetDouble("Value");6 Z( p9 h2 i! S5 a9 j. s
  39. double length = this->doubleLength->GetProperties()->GetDouble("Value");5 _! N1 h$ v3 {# l( t9 g4 J; m
  40. char msg1[UF_MAX_EXP_BUFSIZE],msg2[UF_MAX_EXP_BUFSIZE],msg3[UF_MAX_EXP_BUFSIZE];
    ! [1 M( u6 I* u2 v7 A0 e# h% H
  41. sprintf(msg1,"%f",heigth1);. h7 r. l* |! V6 x
  42. sprintf(msg2,"%f",heigth2);
    7 A1 O( {7 M6 N6 w
  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);
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  47. lengthexp= workPart->Expressions()->CreateSystemExpression(msg3);, C8 u3 ^2 I! E2 ]! @, d
  48. // these for the dimension position8 T! V5 H- A( D6 V
  49. Point3d dimOrigin1(-100, heigth1/2, 0.0); % H) C! T4 ?  p7 G! t4 f: r
  50. Point3d dimOrigin2(length/2, heigth1+100, 0.0);, [5 ~' E# {6 X$ k+ i5 Z  u
  51. Point3d dimOrigin3(length+100, heigth1-heigth2/2, 0.0);</p><p>  // add curves" d" O! c( ]% D" @7 }
  52.     Point3d startPoint1(0.0, 0.0, 0.0);
    : ^" @( f* Y7 y& b# {9 ?9 U
  53. Point3d endPoint1(0.0,heigth1,0.0);, V; ]& N' U7 q& Y; C
  54. Point3d endPoint2(length,heigth1,0.0);
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  55. Point3d endPoint3(length,heigth1-heigth2,0.0);) A3 L/ U0 h) I, Q! z* ^( R0 }6 `; B
  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);  m8 T( T- l7 W; L  e7 I' p. F
  59. line3 = workPart->Curves()->CreateLine(endPoint2, endPoint3);0 J7 W  m. Z' v+ a) V: F- c$ d
  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);
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  63. theSession->ActiveSketch()->AddGeometry(line3, Sketch::InferConstraintsOptionInferCoincidentConstraints);. s' F4 }2 n+ ?; T& t
  64. theSession->ActiveSketch()->AddGeometry(line4, Sketch::InferConstraintsOptionInferCoincidentConstraints);
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  65.    </p><p> // add constraints! F) ]9 }! h- M! \" _; X! O
  66. //..
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  67. // for line1+ C3 [! U$ P! B7 i$ I9 g
  68. Sketch::ConstraintGeometry geopoint1;
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  69. geopoint1.Geometry = line1;
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  70. geopoint1.PointType = Sketch::ConstraintPointTypeStartVertex;
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  71. geopoint1.SplineDefiningPointIndex = 0;
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  72. // find the (0,0,0) point" Q3 a; }. s$ k! i4 N- L+ A7 p4 ^* j
  73. Sketch::ConstraintGeometry geopoint2; 0 _, t/ F1 D! \, c* r7 _, n# U4 q1 Q& Q
  74. Point *pointOriginal;7 \( W4 S' p, j9 T$ B; W
  75. pointOriginal = workPart->Points()->CreatePoint(sketch1->Origin());0 z" H, M( R& H% [
  76. geopoint2.Geometry = pointOriginal;
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  77. geopoint2.PointType = Sketch::ConstraintPointTypeStartVertex;% U* F) B& s, |6 c
  78. geopoint2.SplineDefiningPointIndex = 0;
    ; m: U, Z; ?/ {% |7 i9 H
  79. theSession->ActiveSketch()->CreateCoincidentConstraint(geopoint1,geopoint2);</p><p> Sketch::ConstraintGeometry geoline1;8 \7 R' W9 E. Z. ~7 M* I
  80. geoline1.Geometry = line1;
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  81. geoline1.PointType = Sketch::ConstraintPointTypeNone;
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  82. geoline1.SplineDefiningPointIndex = 0;5 N. Y" ~; H+ \' ]( S' [
  83. theSession->ActiveSketch()->CreateVerticalConstraint(geoline1);) I- i6 b6 O& I' _( g& v' n3 k) e
  84. //..6 x8 t; v! M6 [$ i7 J. `# x3 _
  85. // for line2
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  86. Sketch::ConstraintGeometry geoline2;
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  87. geoline2.Geometry = line2;
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  88. geoline2.PointType = Sketch::ConstraintPointTypeNone;3 x1 y; |1 C) M3 I
  89. geoline2.SplineDefiningPointIndex = 0;% m8 M; e  e' n: s$ w" E: m
  90. theSession->ActiveSketch()->CreateHorizontalConstraint(geoline2);
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  91. //..
    7 o) ]8 a) N* y7 L7 O& O0 K1 ^
  92. // for line3
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  93. Sketch::ConstraintGeometry geoline3;5 B+ E' z9 a' z% X
  94. geoline3.Geometry = line3;
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  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
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  99. /*SketchConstraintBuilder *line3constraint;  z* D4 ^" a! H6 b1 b4 V3 V2 S
  100. line3constraint= workPart->Sketches()->CreateConstraintBuilder();
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  101. line3constraint->GeometryToConstrain()->Add(line3);5 r% [) }! a9 v
  102. line3constraint->SetConstraintType(SketchConstraintBuilder::ConstraintVertical);0 ]% Z5 m3 {' `& G$ V. Z# q
  103. line3constraint->Commit();) A" L7 C8 `1 ~8 V  D% Y9 m) F
  104.     line3constraint->Destroy();*/
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  105.    
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  106. // add dimension
    + G4 [  w" H; T6 p
  107. //..
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  108. // for line1
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  109. Sketch::DimensionGeometry dimobject1_start;0 }* V- U3 G0 N3 G
  110. dimobject1_start.AssocType = Sketch::AssocTypeStartPoint;
      B7 y- e. _7 C0 K8 E2 t
  111. dimobject1_start.AssocValue = 0;6 n+ t4 ~  Y9 U3 y& \# M8 G6 r
  112. dimobject1_start.Geometry = line1;
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  113. dimobject1_start.HelpPoint.X = 0 ;
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  114. dimobject1_start.HelpPoint.Y = 0 ;0 O  k" B' g! S% X0 M9 d( E
  115. dimobject1_start.HelpPoint.Z = 0 ;6 T6 k" v3 M$ t; f
  116. NXObject *nullNXObject1(NULL);
    ) F4 R) `, ]9 T8 p/ k
  117. dimobject1_start.View = nullNXObject1;</p><p> Sketch::DimensionGeometry dimobject1_end;
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  118. dimobject1_end.AssocType = Sketch::AssocTypeEndPoint;
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  119. dimobject1_end.AssocValue = 0;" \% v# d) N7 N# i4 ^" N; E4 }
  120. dimobject1_end.Geometry = line1;
    0 ~6 Q: W* w& h/ V" o9 o
  121. dimobject1_end.HelpPoint.X = 0 ;5 Q" r7 C9 h6 w6 R2 W' l- w, g
  122. dimobject1_end.HelpPoint.Y = 0 ;8 Q- M' H' N6 r' E
  123. dimobject1_end.HelpPoint.Z = 0 ;
    " l4 t9 x) ^9 N
  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;
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  125.     dimension1 = sketchDimensionalConstraint1->AssociatedDimension();</p><p>
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  126. //..+ w) ]2 N. ?! _" F2 e
  127. // for line2
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  128. Sketch::DimensionGeometry dimobject2_start;
    7 I( U& C% A' G+ u
  129. dimobject2_start.AssocType = Sketch::AssocTypeStartPoint;# b5 ~% U/ ^( C
  130. dimobject2_start.AssocValue = 0;
    % e2 m1 s) w# B" s* J; F
  131. dimobject2_start.Geometry = line2;6 d  @4 k# b) E2 K" B
  132. dimobject2_start.HelpPoint.X = 0 ;, ?" c& W+ `4 Y9 B- q
  133. dimobject2_start.HelpPoint.Y = 0 ;
    2 S# B2 @& }" U3 k" |: l
  134. dimobject2_start.HelpPoint.Z = 0 ;5 L3 k% {. k0 b7 H
  135. dimobject2_start.View = nullNXObject1;</p><p> Sketch::DimensionGeometry dimobject2_end;
    2 A+ H$ {& w; \% W
  136. dimobject2_end.AssocType = Sketch::AssocTypeEndPoint;* t% m! {0 l" Q, q; q! f7 Y, z
  137. dimobject2_end.AssocValue = 0;
    4 e; |6 T% F  x2 F% |' D9 n
  138. dimobject2_end.Geometry = line2;' j6 ~1 E" E, }* o7 n4 x
  139. dimobject2_end.HelpPoint.X = 0 ;0 N3 [5 f, Q7 i+ d) b1 f* s
  140. dimobject2_end.HelpPoint.Y = 0 ;
    : X* R' |* A" Q, B* E2 V
  141. dimobject2_end.HelpPoint.Z = 0 ;. g- X( W  _: X  L
  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;
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  143.     dimension2 = sketchDimensionalConstraint2->AssociatedDimension();</p><p> // for line3
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  144. Sketch::DimensionGeometry dimobject3_start;
      i- S1 M' B+ T% |) R' p$ A* L
  145. dimobject3_start.AssocType = Sketch::AssocTypeStartPoint;
    ! N# J( R+ g8 e( @2 a+ O, D, A; ~
  146. dimobject3_start.AssocValue = 0;
    . l8 O- P% @  A( n. y  c! Y* T8 Y0 ?; g
  147. dimobject3_start.Geometry = line3;0 f; e+ Q7 O% f/ G/ h/ E
  148. dimobject3_start.HelpPoint.X = 0 ;
    5 f4 b) y' O1 A0 N2 }
  149. dimobject3_start.HelpPoint.Y = 0 ;1 z4 H' H3 `- M
  150. dimobject3_start.HelpPoint.Z = 0 ;$ S. a" v- b" I! P
  151. dimobject3_start.View = nullNXObject1;</p><p> Sketch::DimensionGeometry dimobject3_end;5 e- o+ [8 n# p
  152. dimobject3_end.AssocType = Sketch::AssocTypeEndPoint;8 L& X# v5 d# @6 E' H
  153. dimobject3_end.AssocValue = 0;
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  154. dimobject3_end.Geometry = line3;7 x+ Y5 h% M1 p+ V3 B
  155. dimobject3_end.HelpPoint.X = 0 ;
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  156. dimobject3_end.HelpPoint.Y = 0 ;
    4 |+ `2 F1 u* i2 k
  157. dimobject3_end.HelpPoint.Z = 0 ;
    5 w0 \4 }5 g3 k: Y( O
  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;
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  159.     dimension3 = sketchDimensionalConstraint3->AssociatedDimension();</p><p> //workPart->Expressions()->Delete(height1exp);</p><p> theSession->ActiveSketch()->Update();</p><p> theSession->ActiveSketch()->Deactivate(Sketch::ViewReorientFalse,Sketch::UpdateLevelModel);
      b1 d, y) Z0 V9 y

  160. 6 ~* c+ k% N( c# {
  161. /*</p><p> // revolve the body</p><p> */
    1 u8 z- ?. Z/ `9 i4 s
  162. Features::Feature *nullFeatures_Feature(NULL);+ u7 B1 e0 Z1 e1 y: k  X* B2 f
  163. Features::RevolveBuilder *revolveBuilder1;/ n5 T9 o8 A* q) l; t  a' b
  164.     revolveBuilder1 = workPart->Features()->CreateRevolveBuilder(nullFeatures_Feature);6 X$ l/ M. a( }. ~! k! o* r* w+ A
  165.     revolveBuilder1->Limits()->StartExtend()->Value()->SetRightHandSide("0");3 n9 _4 e+ U1 t3 F  p& T5 W5 q. P8 w
  166.     revolveBuilder1->Limits()->EndExtend()->Value()->SetRightHandSide("360");
    & P8 Z' p3 s2 ]4 n! z
  167.     revolveBuilder1->SetTolerance(0.01);
    5 x6 m9 u7 z% `4 P3 A2 S7 T* Z/ D
  168. Section *section1;* W6 {' S3 ]3 r3 U" e# R
  169.     section1 = workPart->Sections()->CreateSection(0.0095, 0.01, 0.5);
    & B# t& i0 }# y, e8 `+ m1 y+ l
  170.     revolveBuilder1->SetSection(section1);5 ]. q3 J0 C+ d7 D+ B8 t- u! R
  171.     4 K+ F- v5 X" s2 u
  172. section1->SetAllowedEntityTypes(Section::AllowTypesOnlyCurves);% u, \( {" ]! N7 I  J* L) _: ?% F
  173.    
    ; A& Z/ A7 o8 @0 w1 ]
  174. std::vector<Features::Feature *> features1(1);
    3 \8 J; e5 y9 z+ N( g" y% `
  175.     features1[0] = feature1;" `5 a" A1 p' |* l6 C% w/ i2 N6 g/ d
  176.     CurveFeatureRule *curveFeatureRule1;6 m) v" W& A% l$ S
  177.     curveFeatureRule1 = workPart->ScRuleFactory()->CreateRuleCurveFeature(features1);
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  178.       I' H; k* i& M7 ?
  179.     section1->AllowSelfIntersection(false);
    ! k: _; V4 l# Q: \0 F; F8 g0 ]" o
  180.    
    # A( Y1 _; s7 u4 C: A' f& q5 z. o
  181.     std::vector<SelectionIntentRule *> rules1(1);
    7 Q# J8 I: c/ u: Q+ J+ a6 m. I
  182.     rules1[0] = curveFeatureRule1;# [! S: [0 \. F: m
  183.     NXObject *nullNXObject(NULL);! H6 ?# W3 v( q2 u- C$ M4 b
  184.     Point3d helpPoint1(0.0, 0.0, 0.0);
    . z$ ~' i  |. ~5 V. [
  185.     section1->AddToSection(rules1, nullNXObject, nullNXObject, nullNXObject, helpPoint1, Section::ModeCreate, false);
    $ o. L/ m* x7 j3 @: j+ B, M0 J
  186. 5 m7 p5 I! e7 w+ h7 |# c
  187. // define the axis</p><p>    Direction *direction1;5 ?9 R( L8 C* j# e7 ]
  188.     direction1 = workPart->Directions()->CreateDirection(line2, SenseForward, SmartObject::UpdateOptionWithinModeling);! e& d' |; v" O9 c! `6 \5 I
  189.     9 c4 m6 j4 c4 o4 I0 I
  190.     Point *nullPoint(NULL);
    ; Y4 N/ P  @( L
  191.     Axis *axis1;9 n( T! A3 c' c/ Q4 R# g
  192.     axis1 = workPart->Axes()->CreateAxis(nullPoint, direction1, SmartObject::UpdateOptionWithinModeling);
    - Z. k7 v& M4 o7 ?
  193. 0 b" @1 p4 J; w( `) E3 W0 |
  194. revolveBuilder1->SetAxis(axis1);</p><p> // commit feature
    8 ]5 w+ a+ f9 t; V  w( J4 l- ]; c
  195. Features::Feature *feature2;0 E4 x, v& w% i
  196.     feature2 = revolveBuilder1->CommitFeature();
    ; x! U8 S" M! i( A
  197. revolveBuilder1->Destroy();
    ( P* Z2 J" [9 }$ R; O4 u
  198. }</p><p>}) j. [3 Z, ^2 t0 a3 R# G
  199. </p><p> </p>
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