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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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()" F7 ^8 h& T! v- m4 H6 o2 p- \
{{
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Session *theSession = Session::GetSession();
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Part *workPart(theSession->Parts()->Work());2 J! y8 {4 `$ _9 e; n
Part *displayPart(theSession->Parts()->Display());+ B& F8 S0 a0 P* f& T8 Z
Sketch *nullSketch(NULL);( x" M5 \' d; r. W
SketchInPlaceBuilder *sketchInPlaceBuilder1;8 }" F2 Q! V6 L$ ]7 n- r0 {# V3 u2 p
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);
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sketchInPlaceBuilder1->Plane()->SetOrigin(origin1);: T J7 U8 W' q4 F5 ^8 f$ k
sketchInPlaceBuilder1->Plane()->Evaluate(); // set the reference theSession->Preferences()->Sketch()->SetCreateInferredConstraints(true);; H' P% i" }+ y4 ~- ?9 {
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theSession->Preferences()->Sketch()->SetContinuousAutoDimensioning(false);
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theSession->Preferences()->Sketch()->SetDimensionLabel(Preferences::SketchPreferences::DimensionLabelTypeExpression);$ ?, G; Y7 H# @4 J5 H/ s8 t
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theSession->Preferences()->Sketch()->SetTextSizeFixed(true);
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theSession->Preferences()->Sketch()->SetFixedTextSize(3.0); l8 Q1 _7 @# y- d& z
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theSession->Preferences()->Sketch()->SetConstraintSymbolSize(3.0);! ]/ O2 {! N/ f. c8 u+ |
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theSession->Preferences()->Sketch()->SetDisplayObjectColor(false);
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theSession->Preferences()->Sketch()->SetDisplayObjectName(true);
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NXObject *nXObject1;. ?; l r: P( q: N: T: r' @! h! X
nXObject1 = sketchInPlaceBuilder1->Commit();2 \) G3 U6 Z& b: w, m8 D$ e$ z
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Sketch *sketch1(dynamic_cast<Sketch *>(nXObject1));3 ?: m# _0 k9 n1 P3 H
Features::Feature *feature1;- I, J: g# s7 W: |9 m4 M$ I
feature1 = sketch1->Feature();- m" e' N' E& x* F4 R
sketchInPlaceBuilder1->Destroy();" }9 @ V* f( \8 [
sketch1->Activate(Sketch::ViewReorientFalse);0 V2 s$ S7 ^9 ~- a3 p
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// define the dimensions
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double heigth1 = this->doubleHeight1->GetProperties()->GetDouble("Value");2 J5 g6 r( _5 z% H5 P# K b9 X
double heigth2 = this->doubleHeight2->GetProperties()->GetDouble("Value");7 x! ?; ]( f: U K! N6 {' a
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];& @% I$ I; s" i: q* x: o- N
sprintf(msg1,"%f",heigth1);7 C* v: J5 |3 O$ c
sprintf(msg2,"%f",heigth2);, g! X/ Z- t* ]9 C& ]
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);
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lengthexp= workPart->Expressions()->CreateSystemExpression(msg3);
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// these for the dimension position! L# \% {% g. F. _5 d: k' r
Point3d dimOrigin1(-100, heigth1/2, 0.0); 2 K, U$ {7 F& d% n
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);
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Point3d endPoint1(0.0,heigth1,0.0);
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Point3d endPoint2(length,heigth1,0.0);
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Point3d endPoint3(length,heigth1-heigth2,0.0);
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Line *line1,*line2,*line3,*line4;
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line1 = workPart->Curves()->CreateLine(startPoint1, endPoint1);4 ?, c7 d, t1 B- E# J
line2 = workPart->Curves()->CreateLine(endPoint1, endPoint2);3 r, ^9 Z9 B) O& L
line3 = workPart->Curves()->CreateLine(endPoint2, endPoint3);, _. H9 e: I( i& L
line4 = workPart->Curves()->CreateLine(endPoint3, startPoint1);
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theSession->ActiveSketch()->AddGeometry(line1, Sketch::InferConstraintsOptionInferCoincidentConstraints);9 @% q8 b# p( o1 q k8 b; c5 q
theSession->ActiveSketch()->AddGeometry(line2, Sketch::InferConstraintsOptionInferCoincidentConstraints);+ X( U. o% h5 a! x% v, C1 q+ t
theSession->ActiveSketch()->AddGeometry(line3, Sketch::InferConstraintsOptionInferCoincidentConstraints);4 o8 ` a! B7 o' Y# c- x
theSession->ActiveSketch()->AddGeometry(line4, Sketch::InferConstraintsOptionInferCoincidentConstraints);0 `- i! F# Y; H, [# V
// add constraints0 j) n* |. v* F7 Z' Q% `
//..9 Y; j( ?% M" s+ A$ M) F
// for line15 ?1 V. o1 D) B7 s! G4 h& c
Sketch::ConstraintGeometry geopoint1;
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geopoint1.Geometry = line1;
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geopoint1.PointType = Sketch::ConstraintPointTypeStartVertex;
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geopoint1.SplineDefiningPointIndex = 0;
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// find the (0,0,0) point/ n0 F- H) {6 o& y9 u
Sketch::ConstraintGeometry geopoint2;
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Point *pointOriginal;$ a. \7 S0 L4 r& b7 o3 S) Y
pointOriginal = workPart->Points()->CreatePoint(sketch1->Origin());
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geopoint2.Geometry = pointOriginal;
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geopoint2.PointType = Sketch::ConstraintPointTypeStartVertex;
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geopoint2.SplineDefiningPointIndex = 0;" f H/ U0 q: G K% S
theSession->ActiveSketch()->CreateCoincidentConstraint(geopoint1,geopoint2); Sketch::ConstraintGeometry geoline1;3 H9 s& Z" J# t3 z, I
geoline1.Geometry = line1;5 D) @( \* V4 N% \( t: q
geoline1.PointType = Sketch::ConstraintPointTypeNone;
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geoline1.SplineDefiningPointIndex = 0;
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theSession->ActiveSketch()->CreateVerticalConstraint(geoline1);
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//..# b3 k1 R- y4 P% N6 P* C+ x# N
// for line24 z% [# D9 R" W/ U; Z! q' n
Sketch::ConstraintGeometry geoline2;: G/ h$ O7 X+ e" N O
geoline2.Geometry = line2;
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geoline2.PointType = Sketch::ConstraintPointTypeNone;
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geoline2.SplineDefiningPointIndex = 0;
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theSession->ActiveSketch()->CreateHorizontalConstraint(geoline2);0 V/ t4 e' S1 g' E- w
//..
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// for line37 N: u* |* d9 N E9 C
Sketch::ConstraintGeometry geoline3;3 e b% P- }' _) x* X
geoline3.Geometry = line3;4 y- e" s6 r" j2 m
geoline3.PointType = Sketch::ConstraintPointTypeNone;
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geoline3.SplineDefiningPointIndex = 0;
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theSession->ActiveSketch()->CreateVerticalConstraint(geoline3);
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// use this method to create the constraints3 |5 j0 ^% B9 K/ A
/*SketchConstraintBuilder *line3constraint;
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line3constraint= workPart->Sketches()->CreateConstraintBuilder();! S* B7 N8 g2 Y0 j
line3constraint->GeometryToConstrain()->Add(line3);& G7 z7 J0 A0 m9 D* H2 K
line3constraint->SetConstraintType(SketchConstraintBuilder::ConstraintVertical);. \ o' E' | O$ v
line3constraint->Commit();8 }5 N# o: o g. F$ v) Q6 v- I+ @
line3constraint->Destroy();*/5 y# i T! {. a# R5 e U
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// add dimension0 [, ~- L- D0 y! b
//..6 J- e9 j% j% i5 e3 n6 ]& \9 s
// for line1: s4 q m' k4 t, t% C; D+ E* H
Sketch::DimensionGeometry dimobject1_start;
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dimobject1_start.AssocType = Sketch::AssocTypeStartPoint;
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dimobject1_start.AssocValue = 0;; V( ?6 Q _, ?( Q
dimobject1_start.Geometry = line1;6 b2 P/ v/ j/ D6 _4 L1 |* A
dimobject1_start.HelpPoint.X = 0 ;
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dimobject1_start.HelpPoint.Y = 0 ;
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dimobject1_start.HelpPoint.Z = 0 ;4 ^ w/ y" i6 ?$ y& S
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;, f6 e6 F N% j" D4 x$ g3 d
dimobject1_end.Geometry = line1;
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dimobject1_end.HelpPoint.X = 0 ;1 T, F' a$ V1 U0 E
dimobject1_end.HelpPoint.Y = 0 ;1 A) G# L9 X! a/ R r
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;
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dimension1 = sketchDimensionalConstraint1->AssociatedDimension();4 ?3 a4 o7 }+ x/ J9 {
//..
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// for line2
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Sketch::DimensionGeometry dimobject2_start;( A4 }. W( G; K5 a, U6 w
dimobject2_start.AssocType = Sketch::AssocTypeStartPoint; v; ]+ W$ ?8 l+ U: k2 F, x
dimobject2_start.AssocValue = 0;8 f. c- [/ V# R
dimobject2_start.Geometry = line2;
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dimobject2_start.HelpPoint.X = 0 ;- i' C# h! j0 c2 @, ~& h$ L
dimobject2_start.HelpPoint.Y = 0 ;! F$ H8 U' I% z2 {9 c9 o9 D5 J
dimobject2_start.HelpPoint.Z = 0 ;
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dimobject2_start.View = nullNXObject1; Sketch::DimensionGeometry dimobject2_end;6 ?/ X. q V3 m
dimobject2_end.AssocType = Sketch::AssocTypeEndPoint;
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dimobject2_end.AssocValue = 0;+ ^1 Z1 u/ a' k4 _7 O
dimobject2_end.Geometry = line2;
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dimobject2_end.HelpPoint.X = 0 ;
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dimobject2_end.HelpPoint.Y = 0 ;. {( o+ \) s/ k) u& r9 B" n6 [
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
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Sketch::DimensionGeometry dimobject3_start;
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dimobject3_start.AssocType = Sketch::AssocTypeStartPoint;$ j) u3 U& m& [. f" X
dimobject3_start.AssocValue = 0;
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dimobject3_start.Geometry = line3;- ^- Z) \+ e1 d ?8 e
dimobject3_start.HelpPoint.X = 0 ;9 ? {! o( }, h3 H7 e/ M
dimobject3_start.HelpPoint.Y = 0 ;7 a9 c! E; d- f' r
dimobject3_start.HelpPoint.Z = 0 ;+ J# @& ^+ W% O. H
dimobject3_start.View = nullNXObject1; Sketch::DimensionGeometry dimobject3_end;
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dimobject3_end.AssocType = Sketch::AssocTypeEndPoint;5 o2 p+ x1 l- A# g
dimobject3_end.AssocValue = 0;
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dimobject3_end.Geometry = line3;$ K% `$ c4 r) s |8 O2 k
dimobject3_end.HelpPoint.X = 0 ;
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dimobject3_end.HelpPoint.Y = 0 ;
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dimobject3_end.HelpPoint.Z = 0 ;1 ^1 [3 ^6 E5 q. W* [5 V& D
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);9 x. W2 k- [# v! c7 \
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/* // revolve the body */6 {! F @1 B% }5 D4 `- d3 x
Features::Feature *nullFeatures_Feature(NULL);
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Features::RevolveBuilder *revolveBuilder1;
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revolveBuilder1 = workPart->Features()->CreateRevolveBuilder(nullFeatures_Feature);
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revolveBuilder1->Limits()->StartExtend()->Value()->SetRightHandSide("0");
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revolveBuilder1->Limits()->EndExtend()->Value()->SetRightHandSide("360");1 ~! p/ W5 u0 i. M! M% U9 u: f, \& Z M' z6 E
revolveBuilder1->SetTolerance(0.01);' q- m" s1 y8 n, H' |: G4 }' V
Section *section1;
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section1 = workPart->Sections()->CreateSection(0.0095, 0.01, 0.5); s+ i: O% R& ]1 ~8 p2 h( t
revolveBuilder1->SetSection(section1);8 e5 c; m) `: I) f* i
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section1->SetAllowedEntityTypes(Section::AllowTypesOnlyCurves);" {" h% `2 i& U4 |9 V! A @) L; ^
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std::vector<Features::Feature *> features1(1);
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features1[0] = feature1;
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CurveFeatureRule *curveFeatureRule1;
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curveFeatureRule1 = workPart->ScRuleFactory()->CreateRuleCurveFeature(features1);; ]7 B |+ Y% u+ O( |4 j
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section1->AllowSelfIntersection(false);
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std::vector<SelectionIntentRule *> rules1(1);
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rules1[0] = curveFeatureRule1;" B1 w3 P" i7 Z; C2 E+ t
NXObject *nullNXObject(NULL);: V# g; R" B- f8 J6 @. k
Point3d helpPoint1(0.0, 0.0, 0.0);7 M, |& n* v- m- m% |
section1->AddToSection(rules1, nullNXObject, nullNXObject, nullNXObject, helpPoint1, Section::ModeCreate, false);
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// define the axis Direction *direction1;
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direction1 = workPart->Directions()->CreateDirection(line2, SenseForward, SmartObject::UpdateOptionWithinModeling);
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Point *nullPoint(NULL);9 ]8 D* z6 L' i0 j9 R# D
Axis *axis1;; f. o0 r9 b1 B, P6 Q" A& @
axis1 = workPart->Axes()->CreateAxis(nullPoint, direction1, SmartObject::UpdateOptionWithinModeling);9 D: U0 z8 T- [- j
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revolveBuilder1->SetAxis(axis1); // commit feature
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Features::Feature *feature2;1 `" f9 i5 q- q- G! b, k
feature2 = revolveBuilder1->CommitFeature();" b( w. e* _0 v( e, M6 v: E/ G c3 e
revolveBuilder1->Destroy();: y" o8 D; U% z! A4 H3 p* u
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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