NX二次开发源码：创建草图并通过草图做出回转体

admin · 发表于 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。
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。
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。
仅供参考！

效果如下：

admin · 发表于 2014-2-19 17:07:47

比较乱，仅供参考

void basicFeatures::createSketch()8 C h6 v+ P% v- u# _
{{
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Session *theSession = Session::GetSession();
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Part *workPart(theSession->Parts()->Work());
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Part *displayPart(theSession->Parts()->Display());
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Sketch *nullSketch(NULL);: Y3 B2 t/ c, m
SketchInPlaceBuilder *sketchInPlaceBuilder1;! t3 R9 v0 g y. a5 a9 B
sketchInPlaceBuilder1 = workPart->Sketches()->CreateNewSketchInPlaceBuilder(nullSketch);
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sketchInPlaceBuilder1->Plane()->SetMethod(PlaneTypes::MethodTypeFixedZ);
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Point3d origin1(0.0, 0.0, 0.0);, c( C: F1 F, f/ ^3 n6 s
sketchInPlaceBuilder1->Plane()->SetOrigin(origin1);
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sketchInPlaceBuilder1->Plane()->Evaluate(); // set the reference theSession->Preferences()->Sketch()->SetCreateInferredConstraints(true);
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theSession->Preferences()->Sketch()->SetContinuousAutoDimensioning(false);
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theSession->Preferences()->Sketch()->SetDimensionLabel(Preferences::SketchPreferences::DimensionLabelTypeExpression);8 B; j! w! K- }* [+ u! Z
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theSession->Preferences()->Sketch()->SetTextSizeFixed(true);* v6 f o `2 H4 L
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theSession->Preferences()->Sketch()->SetFixedTextSize(3.0);6 C" O- @2 ? y- T& x8 I3 _. m
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theSession->Preferences()->Sketch()->SetConstraintSymbolSize(3.0);* X, k+ `" c3 v2 N1 X" U
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theSession->Preferences()->Sketch()->SetDisplayObjectColor(false);8 |" e4 U7 A0 w2 V; E* } c$ W
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theSession->Preferences()->Sketch()->SetDisplayObjectName(true);
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NXObject *nXObject1;
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nXObject1 = sketchInPlaceBuilder1->Commit();
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Sketch *sketch1(dynamic_cast<Sketch *>(nXObject1));
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Features::Feature *feature1;
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feature1 = sketch1->Feature();
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sketchInPlaceBuilder1->Destroy();$ {7 [8 Y0 v4 m3 J3 _( O
sketch1->Activate(Sketch::ViewReorientFalse);6 o. L9 s `* \5 g; I: p
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// define the dimensions 2 \- M. t4 ]# n" s5 L3 B2 r
double heigth1 = this->doubleHeight1->GetProperties()->GetDouble("Value");
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double heigth2 = this->doubleHeight2->GetProperties()->GetDouble("Value");5 D9 x" m$ ~3 D( D! Q% }4 z3 ]
double length = this->doubleLength->GetProperties()->GetDouble("Value");
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char msg1[UF_MAX_EXP_BUFSIZE],msg2[UF_MAX_EXP_BUFSIZE],msg3[UF_MAX_EXP_BUFSIZE];/ r( _* Y& w# B, x3 B
sprintf(msg1,"%f",heigth1);1 T; _& m+ [ k" L
sprintf(msg2,"%f",heigth2);
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sprintf(msg3,"%f",length);
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Expression *height1exp,*height2exp,*lengthexp;
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height1exp= workPart->Expressions()->CreateSystemExpression(msg1);
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height2exp= workPart->Expressions()->CreateSystemExpression(msg2);7 E E, ?" ]3 Y* H9 @
lengthexp= workPart->Expressions()->CreateSystemExpression(msg3);
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// these for the dimension position
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Point3d dimOrigin1(-100, heigth1/2, 0.0);
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Point3d dimOrigin2(length/2, heigth1+100, 0.0);
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Point3d dimOrigin3(length+100, heigth1-heigth2/2, 0.0); // add curves
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Point3d startPoint1(0.0, 0.0, 0.0);" ]- Y" t2 E8 ?3 A5 @' W0 M* o
Point3d endPoint1(0.0,heigth1,0.0);8 ?) T1 h0 }% S! n# b4 Z
Point3d endPoint2(length,heigth1,0.0);8 k d E" ?0 r, e
Point3d endPoint3(length,heigth1-heigth2,0.0);7 ]. P5 i/ Q# ?# d4 m) R
Line *line1,*line2,*line3,*line4;1 q$ @" h9 M3 X3 S
line1 = workPart->Curves()->CreateLine(startPoint1, endPoint1);4 D/ J& v+ p s8 v. J3 b7 Q) E
line2 = workPart->Curves()->CreateLine(endPoint1, endPoint2);9 W9 b7 f% z- T. M) P" N# _6 }- x- g
line3 = workPart->Curves()->CreateLine(endPoint2, endPoint3);- U9 q9 U y' z! @
line4 = workPart->Curves()->CreateLine(endPoint3, startPoint1);: {: j* w1 L, H4 H6 o* E
theSession->ActiveSketch()->AddGeometry(line1, Sketch::InferConstraintsOptionInferCoincidentConstraints);& A6 ]8 h: C; \; ]( U
theSession->ActiveSketch()->AddGeometry(line2, Sketch::InferConstraintsOptionInferCoincidentConstraints);7 B1 p R+ H% g4 V( O H
theSession->ActiveSketch()->AddGeometry(line3, Sketch::InferConstraintsOptionInferCoincidentConstraints);
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theSession->ActiveSketch()->AddGeometry(line4, Sketch::InferConstraintsOptionInferCoincidentConstraints);
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// add constraints0 i' o1 j$ V& \- i
//.., K: F/ ]: p, C/ R* R
// for line1) a, C2 {1 ^- d( }% y1 n7 n
Sketch::ConstraintGeometry geopoint1;
geopoint1.Geometry = line1;5 Q8 c* h) H U1 a) g3 o
geopoint1.PointType = Sketch::ConstraintPointTypeStartVertex;7 M( U3 Z& \+ F+ D
geopoint1.SplineDefiningPointIndex = 0;
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// find the (0,0,0) point3 G, Y# n0 v8 {9 ?% i
Sketch::ConstraintGeometry geopoint2; ! [- C' b4 `' r
Point *pointOriginal;2 |) }' P- o) Q" i1 C, Z7 k1 x
pointOriginal = workPart->Points()->CreatePoint(sketch1->Origin());- q* o" v2 b6 z# v9 @; I
geopoint2.Geometry = pointOriginal;/ r* i# K$ p2 V' E) {: G, M) h9 m
geopoint2.PointType = Sketch::ConstraintPointTypeStartVertex;0 ?0 U5 l) T; G5 b& M1 B! O
geopoint2.SplineDefiningPointIndex = 0;/ n' f8 u* I5 \0 [5 a1 V, H
theSession->ActiveSketch()->CreateCoincidentConstraint(geopoint1,geopoint2); Sketch::ConstraintGeometry geoline1;
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geoline1.Geometry = line1;
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geoline1.PointType = Sketch::ConstraintPointTypeNone;
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geoline1.SplineDefiningPointIndex = 0;4 Z9 s* Y1 j- A1 W8 @- Q
theSession->ActiveSketch()->CreateVerticalConstraint(geoline1);
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//... F5 W3 \5 d4 J) D& e
// for line2
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Sketch::ConstraintGeometry geoline2;
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geoline2.Geometry = line2;
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geoline2.PointType = Sketch::ConstraintPointTypeNone;$ k7 j3 m) k) M5 x( c
geoline2.SplineDefiningPointIndex = 0;
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theSession->ActiveSketch()->CreateHorizontalConstraint(geoline2);
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//..
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// for line3
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Sketch::ConstraintGeometry geoline3;$ g" c! m, X: i. B3 X: u6 x# S
geoline3.Geometry = line3;9 J; x& t* V# H
geoline3.PointType = Sketch::ConstraintPointTypeNone;
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geoline3.SplineDefiningPointIndex = 0; V5 \6 T1 t2 e% r# n3 R9 H! w4 l
theSession->ActiveSketch()->CreateVerticalConstraint(geoline3);' m8 [0 r' z+ b% \1 S& m6 j! ]' U
// use this method to create the constraints9 {( C9 }5 A( h. |! y" _
/*SketchConstraintBuilder *line3constraint;8 \# E7 u2 Z/ E7 h- O- B( z
line3constraint= workPart->Sketches()->CreateConstraintBuilder();
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line3constraint->GeometryToConstrain()->Add(line3); H) x7 Z* s& u
line3constraint->SetConstraintType(SketchConstraintBuilder::ConstraintVertical);
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line3constraint->Commit();
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line3constraint->Destroy();*/7 i M0 q3 n5 X9 K
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// add dimension) {' n4 c( J8 T! f) K. F
//..
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// for line1
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Sketch::DimensionGeometry dimobject1_start;/ }. T% Y! \1 x
dimobject1_start.AssocType = Sketch::AssocTypeStartPoint;2 Q, k* g# C; b( U! Z
dimobject1_start.AssocValue = 0;
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dimobject1_start.Geometry = line1;% j0 S! F7 n* z+ c& `' [
dimobject1_start.HelpPoint.X = 0 ;% _2 x/ J. ?! L3 N, b1 V2 r' e
dimobject1_start.HelpPoint.Y = 0 ;
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dimobject1_start.HelpPoint.Z = 0 ;
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NXObject *nullNXObject1(NULL);
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dimobject1_start.View = nullNXObject1; Sketch::DimensionGeometry dimobject1_end;
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dimobject1_end.AssocType = Sketch::AssocTypeEndPoint;
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dimobject1_end.AssocValue = 0;
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dimobject1_end.Geometry = line1;! Q# t; u1 ~$ ^$ b G$ l% y
dimobject1_end.HelpPoint.X = 0 ;
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dimobject1_end.HelpPoint.Y = 0 ;4 P) J7 r1 T% `# b" o! ?6 \
dimobject1_end.HelpPoint.Z = 0 ;
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dimobject1_end.View = nullNXObject1; SketchDimensionalConstraint *sketchDimensionalConstraint1 = theSession->ActiveSketch()->CreateDimension(Sketch::ConstraintTypeVerticalDim,dimobject1_start,dimobject1_end,dimOrigin1,height1exp,Sketch::DimensionOptionCreateAsDriving); Annotations::Dimension *dimension1;5 l5 P+ Q V& {
dimension1 = sketchDimensionalConstraint1->AssociatedDimension();
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//..
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// for line2
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Sketch::DimensionGeometry dimobject2_start;
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dimobject2_start.AssocType = Sketch::AssocTypeStartPoint;" `( b7 h( w) `. ?8 i1 D3 i$ h
dimobject2_start.AssocValue = 0;
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dimobject2_start.Geometry = line2;# y- T# U% m6 u5 x/ k. D3 o
dimobject2_start.HelpPoint.X = 0 ;( V; y2 N! O# O K1 `. d
dimobject2_start.HelpPoint.Y = 0 ;
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dimobject2_start.HelpPoint.Z = 0 ;
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dimobject2_start.View = nullNXObject1; Sketch::DimensionGeometry dimobject2_end;0 ]% ?2 l2 ^9 \! f! g
dimobject2_end.AssocType = Sketch::AssocTypeEndPoint;. i& \. z6 Q, A. n m4 Y8 {3 H
dimobject2_end.AssocValue = 0;& O3 D1 _/ g. a& s/ } I
dimobject2_end.Geometry = line2;
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dimobject2_end.HelpPoint.X = 0 ;
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dimobject2_end.HelpPoint.Y = 0 ;
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dimobject2_end.HelpPoint.Z = 0 ;
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dimobject2_end.View = nullNXObject1; SketchDimensionalConstraint *sketchDimensionalConstraint2 = theSession->ActiveSketch()->CreateDimension(Sketch::ConstraintTypeHorizontalDim,dimobject2_start,dimobject2_end,dimOrigin2,lengthexp,Sketch::DimensionOptionCreateAsDriving); Annotations::Dimension *dimension2;
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dimension2 = sketchDimensionalConstraint2->AssociatedDimension(); // for line3( I* ~, W. \6 J5 c( Y, G
Sketch::DimensionGeometry dimobject3_start;
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dimobject3_start.AssocType = Sketch::AssocTypeStartPoint;
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dimobject3_start.AssocValue = 0;
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dimobject3_start.Geometry = line3;; a9 U9 A& U2 H, ^- i+ B1 u
dimobject3_start.HelpPoint.X = 0 ;
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dimobject3_start.HelpPoint.Y = 0 ;/ d! l' v' y$ Z5 o9 f% t+ G1 u2 q9 t2 O
dimobject3_start.HelpPoint.Z = 0 ;
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dimobject3_start.View = nullNXObject1; Sketch::DimensionGeometry dimobject3_end;. s& t1 H) A5 p& w
dimobject3_end.AssocType = Sketch::AssocTypeEndPoint;
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dimobject3_end.AssocValue = 0;8 p8 S" v7 Z8 H
dimobject3_end.Geometry = line3;
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dimobject3_end.HelpPoint.X = 0 ;
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dimobject3_end.HelpPoint.Y = 0 ;) f' i% U& W0 x/ l
dimobject3_end.HelpPoint.Z = 0 ;
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dimobject3_end.View = nullNXObject1; SketchDimensionalConstraint *sketchDimensionalConstraint3 = theSession->ActiveSketch()->CreateDimension(Sketch::ConstraintTypeVerticalDim,dimobject3_start,dimobject3_end,dimOrigin3,height2exp,Sketch::DimensionOptionCreateAsDriving); Annotations::Dimension *dimension3;
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dimension3 = sketchDimensionalConstraint3->AssociatedDimension(); //workPart->Expressions()->Delete(height1exp); theSession->ActiveSketch()->Update(); theSession->ActiveSketch()->Deactivate(Sketch::ViewReorientFalse,Sketch::UpdateLevelModel);0 `: J+ x4 M7 o) A& p8 J: }6 {
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/* // revolve the body */
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Features::Feature *nullFeatures_Feature(NULL);
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Features::RevolveBuilder *revolveBuilder1;
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revolveBuilder1 = workPart->Features()->CreateRevolveBuilder(nullFeatures_Feature);8 }/ i) x, a8 M6 I8 c$ j: K
revolveBuilder1->Limits()->StartExtend()->Value()->SetRightHandSide("0");; g: E5 q$ g! x9 j+ k
revolveBuilder1->Limits()->EndExtend()->Value()->SetRightHandSide("360");
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revolveBuilder1->SetTolerance(0.01);, ^4 ^. N4 A8 Z! d
Section *section1;& R% T+ X7 ^, x: B$ m: l
section1 = workPart->Sections()->CreateSection(0.0095, 0.01, 0.5);
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revolveBuilder1->SetSection(section1);
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section1->SetAllowedEntityTypes(Section::AllowTypesOnlyCurves);9 O5 K5 N W9 N6 W
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std::vector<Features::Feature *> features1(1);
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features1[0] = feature1;
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CurveFeatureRule *curveFeatureRule1;) q) N* `; w3 W' L; ^
curveFeatureRule1 = workPart->ScRuleFactory()->CreateRuleCurveFeature(features1);$ Z3 B7 _ \! T
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section1->AllowSelfIntersection(false);' E# X$ H1 Z; J' V3 Z% z, [
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std::vector<SelectionIntentRule *> rules1(1);! H: J7 u7 s' l, Y3 n# s2 l
rules1[0] = curveFeatureRule1;
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NXObject *nullNXObject(NULL);4 b1 t6 Y" ^) U) \1 \
Point3d helpPoint1(0.0, 0.0, 0.0);
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section1->AddToSection(rules1, nullNXObject, nullNXObject, nullNXObject, helpPoint1, Section::ModeCreate, false);+ s/ O' w3 h/ a8 s
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// define the axis Direction *direction1;0 ?; ^) {3 r/ J3 ~+ A% o2 y
direction1 = workPart->Directions()->CreateDirection(line2, SenseForward, SmartObject::UpdateOptionWithinModeling);
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Point *nullPoint(NULL);
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Axis *axis1;
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axis1 = workPart->Axes()->CreateAxis(nullPoint, direction1, SmartObject::UpdateOptionWithinModeling);
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revolveBuilder1->SetAxis(axis1); // commit feature
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Features::Feature *feature2;9 t2 z# x+ D" F9 e' ^" c
feature2 = revolveBuilder1->CommitFeature();5 H2 l0 {* }+ f Y
revolveBuilder1->Destroy();) T% t( j" d8 Z# G6 i
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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