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()
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{{
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Session *theSession = Session::GetSession();3 v; E7 c- T# j9 [" r" J) i& e
Part *workPart(theSession->Parts()->Work());* p }/ D6 }$ T* d8 i# ~4 G1 n; ^
Part *displayPart(theSession->Parts()->Display());
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Sketch *nullSketch(NULL);
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SketchInPlaceBuilder *sketchInPlaceBuilder1;
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sketchInPlaceBuilder1 = workPart->Sketches()->CreateNewSketchInPlaceBuilder(nullSketch);
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sketchInPlaceBuilder1->Plane()->SetMethod(PlaneTypes::MethodTypeFixedZ);$ Y e6 V% C; h. c9 g
Point3d origin1(0.0, 0.0, 0.0);
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sketchInPlaceBuilder1->Plane()->SetOrigin(origin1); h7 j. C" e7 Q$ }! n/ d) s0 `, o m
sketchInPlaceBuilder1->Plane()->Evaluate(); // set the reference theSession->Preferences()->Sketch()->SetCreateInferredConstraints(true);& P* `8 W4 r0 ?. M G. Y
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theSession->Preferences()->Sketch()->SetContinuousAutoDimensioning(false);" O4 P5 B2 N8 X: V9 g/ K
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theSession->Preferences()->Sketch()->SetDimensionLabel(Preferences::SketchPreferences::DimensionLabelTypeExpression);$ g' ^4 s8 a6 r- b- Q$ v
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theSession->Preferences()->Sketch()->SetTextSizeFixed(true);2 [* T5 \' [6 O2 k+ g+ {/ C
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theSession->Preferences()->Sketch()->SetFixedTextSize(3.0);- E" |4 X4 t3 E* d
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theSession->Preferences()->Sketch()->SetConstraintSymbolSize(3.0);
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theSession->Preferences()->Sketch()->SetDisplayObjectColor(false);3 T D q# J7 M7 W% O! F( m
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theSession->Preferences()->Sketch()->SetDisplayObjectName(true); & ^( }; W% Q2 |- S4 A
NXObject *nXObject1;
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nXObject1 = sketchInPlaceBuilder1->Commit();
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Sketch *sketch1(dynamic_cast<Sketch *>(nXObject1));( h2 `5 N2 } L5 S% n
Features::Feature *feature1;
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feature1 = sketch1->Feature();, |' A! `1 k( O$ |) L- q/ s
sketchInPlaceBuilder1->Destroy();$ }# ]4 ]8 i- q! ~7 q1 @
sketch1->Activate(Sketch::ViewReorientFalse);
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// define the dimensions
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double heigth1 = this->doubleHeight1->GetProperties()->GetDouble("Value");! u2 \3 J& P/ e; _0 P
double heigth2 = this->doubleHeight2->GetProperties()->GetDouble("Value");
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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];8 u/ P; P2 S+ P$ L$ |; U/ f. u
sprintf(msg1,"%f",heigth1);; g0 I4 p& c E- J5 X; V. J2 _6 z
sprintf(msg2,"%f",heigth2);# E% S/ v5 Z$ N) A( I' i' o
sprintf(msg3,"%f",length);
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Expression *height1exp,*height2exp,*lengthexp;! }1 Q4 h# f& ]) p9 i5 c' ^
height1exp= workPart->Expressions()->CreateSystemExpression(msg1);
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height2exp= workPart->Expressions()->CreateSystemExpression(msg2);
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lengthexp= workPart->Expressions()->CreateSystemExpression(msg3);" e# ?* y& ]6 K5 ]& N' x
// these for the dimension position
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Point3d dimOrigin1(-100, heigth1/2, 0.0); / A5 l I# L& ~) w" g9 N( y& q. u
Point3d dimOrigin2(length/2, heigth1+100, 0.0);
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Point3d dimOrigin3(length+100, heigth1-heigth2/2, 0.0); // add curves% L% l, B5 Z9 D- w
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);
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line2 = workPart->Curves()->CreateLine(endPoint1, endPoint2);3 Z& M3 ~* i5 q0 l7 N2 j" h
line3 = workPart->Curves()->CreateLine(endPoint2, endPoint3);9 a, C- o. l' i7 E; h, j
line4 = workPart->Curves()->CreateLine(endPoint3, startPoint1);
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theSession->ActiveSketch()->AddGeometry(line1, Sketch::InferConstraintsOptionInferCoincidentConstraints);
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theSession->ActiveSketch()->AddGeometry(line2, Sketch::InferConstraintsOptionInferCoincidentConstraints);
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theSession->ActiveSketch()->AddGeometry(line3, Sketch::InferConstraintsOptionInferCoincidentConstraints);4 ? G: f% m1 m# N. m
theSession->ActiveSketch()->AddGeometry(line4, Sketch::InferConstraintsOptionInferCoincidentConstraints);+ o# Z2 n p! W0 M, C
// add constraints3 m( W$ D& {# b: b! {' I$ k
//.. i% h6 e9 m3 t
// for line10 c% E* z* w0 M; f% b
Sketch::ConstraintGeometry geopoint1;
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geopoint1.Geometry = line1;
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geopoint1.PointType = Sketch::ConstraintPointTypeStartVertex;, [; P# X, f' P: t% B
geopoint1.SplineDefiningPointIndex = 0;6 D% c' h4 e+ {; U. C3 a$ O
// find the (0,0,0) point
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Sketch::ConstraintGeometry geopoint2;
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Point *pointOriginal;
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pointOriginal = workPart->Points()->CreatePoint(sketch1->Origin());
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geopoint2.Geometry = pointOriginal;# z, F+ Q$ i1 N! {
geopoint2.PointType = Sketch::ConstraintPointTypeStartVertex;2 s" B( x. s8 I$ u% W
geopoint2.SplineDefiningPointIndex = 0;% }* A Z- S9 R* T7 A" E: X" u
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;
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theSession->ActiveSketch()->CreateVerticalConstraint(geoline1);
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//..
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// for line2
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Sketch::ConstraintGeometry geoline2;
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geoline2.Geometry = line2;+ I ^# k3 f$ v5 ]
geoline2.PointType = Sketch::ConstraintPointTypeNone;4 t3 I, \6 T1 M; D7 E, B
geoline2.SplineDefiningPointIndex = 0;4 E) f5 _3 `/ Q j
theSession->ActiveSketch()->CreateHorizontalConstraint(geoline2);2 s/ B. ~/ q' o- ^
//..
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// for line34 r8 f6 w. q( ]
Sketch::ConstraintGeometry geoline3;* w) Q1 m% _. Y1 H: R9 X
geoline3.Geometry = line3;+ k4 A9 u9 M4 Q" n# s3 K
geoline3.PointType = Sketch::ConstraintPointTypeNone;
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geoline3.SplineDefiningPointIndex = 0;( q! N" Q J9 |6 q$ N m2 K9 A' }
theSession->ActiveSketch()->CreateVerticalConstraint(geoline3);9 H2 t1 H0 O! v+ Y6 U6 x% T
// use this method to create the constraints
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/*SketchConstraintBuilder *line3constraint;; }! ^; c: n$ {
line3constraint= workPart->Sketches()->CreateConstraintBuilder();
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line3constraint->GeometryToConstrain()->Add(line3);( D% ~# k/ _ B
line3constraint->SetConstraintType(SketchConstraintBuilder::ConstraintVertical);
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line3constraint->Commit();8 Y6 A& F0 b, J; k2 I- _+ L5 b
line3constraint->Destroy();*/
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// add dimension
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//..
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// for line1! J) S- c+ x: M0 n5 m
Sketch::DimensionGeometry dimobject1_start;
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dimobject1_start.AssocType = Sketch::AssocTypeStartPoint;; [9 ^* }$ Z3 q4 W5 G: [
dimobject1_start.AssocValue = 0;1 m& J* i: k4 I: n, {) B
dimobject1_start.Geometry = line1;
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dimobject1_start.HelpPoint.X = 0 ;
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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;& h1 c, F# t4 g. {% f
dimobject1_end.AssocValue = 0;6 I# k) X m! A) R$ d
dimobject1_end.Geometry = line1;. {$ j5 F2 X, w
dimobject1_end.HelpPoint.X = 0 ;% x0 c/ v( c- r8 |4 h8 ?
dimobject1_end.HelpPoint.Y = 0 ;0 F$ Z! p% g5 u" y+ |* U F! t6 e
dimobject1_end.HelpPoint.Z = 0 ;5 K& O: a2 d0 J/ W( A
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();
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//..- Z, i( t8 p% Y# Y) q/ H
// for line24 Z z" B1 i2 x
Sketch::DimensionGeometry dimobject2_start;
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dimobject2_start.AssocType = Sketch::AssocTypeStartPoint;* D- ?2 p- [6 R N& T# D
dimobject2_start.AssocValue = 0;
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dimobject2_start.Geometry = line2;0 `: p/ `' ~! D- ^6 A7 g5 N2 j
dimobject2_start.HelpPoint.X = 0 ;! Q$ k$ j3 I3 [. C c! [7 V
dimobject2_start.HelpPoint.Y = 0 ;3 o3 |* ]# t1 T' k' p6 i8 f3 i! A
dimobject2_start.HelpPoint.Z = 0 ;
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dimobject2_start.View = nullNXObject1; Sketch::DimensionGeometry dimobject2_end;/ a1 Q. U1 y1 P, u/ W
dimobject2_end.AssocType = Sketch::AssocTypeEndPoint;
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dimobject2_end.AssocValue = 0;
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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;' G% B4 j) c6 Z/ {3 ]# c
dimension2 = sketchDimensionalConstraint2->AssociatedDimension(); // for line3
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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;
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dimobject3_start.HelpPoint.X = 0 ;
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dimobject3_start.HelpPoint.Y = 0 ;
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dimobject3_start.HelpPoint.Z = 0 ;/ s! f" ]: C" o) y( y: G4 Z
dimobject3_start.View = nullNXObject1; Sketch::DimensionGeometry dimobject3_end;7 ?( |$ G9 Z' `9 E3 ], H
dimobject3_end.AssocType = Sketch::AssocTypeEndPoint;
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dimobject3_end.AssocValue = 0;
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dimobject3_end.Geometry = line3;9 o Z# E4 r5 [
dimobject3_end.HelpPoint.X = 0 ;+ M/ V" @3 m5 u. @' _' r7 ?
dimobject3_end.HelpPoint.Y = 0 ;; d0 L- k" G! d
dimobject3_end.HelpPoint.Z = 0 ;" _; n V2 J; 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);
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/* // revolve the body */
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Features::Feature *nullFeatures_Feature(NULL);
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Features::RevolveBuilder *revolveBuilder1;0 ~" }4 Q6 O* ?/ J- l" s
revolveBuilder1 = workPart->Features()->CreateRevolveBuilder(nullFeatures_Feature);
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revolveBuilder1->Limits()->StartExtend()->Value()->SetRightHandSide("0");+ C* L& E r6 [ | [: |
revolveBuilder1->Limits()->EndExtend()->Value()->SetRightHandSide("360");/ Y1 m t6 ~! X1 B( D M# U
revolveBuilder1->SetTolerance(0.01);: n& P3 |" Y9 T4 ~) f
Section *section1;
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section1 = workPart->Sections()->CreateSection(0.0095, 0.01, 0.5);6 n1 L0 G+ S! ~" P" F) p
revolveBuilder1->SetSection(section1);' Q" `. U: S6 e* Q! @3 z
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section1->SetAllowedEntityTypes(Section::AllowTypesOnlyCurves);7 U; x& r1 j4 e
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std::vector<Features::Feature *> features1(1);4 e7 \6 e! s4 e; L( E
features1[0] = feature1;9 l1 l/ G9 e/ e- b$ }
CurveFeatureRule *curveFeatureRule1;2 q; n, F1 i5 i
curveFeatureRule1 = workPart->ScRuleFactory()->CreateRuleCurveFeature(features1);
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section1->AllowSelfIntersection(false);
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std::vector<SelectionIntentRule *> rules1(1);: ?/ e1 R @' m: E3 l% S: D( J
rules1[0] = curveFeatureRule1;
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NXObject *nullNXObject(NULL);
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Point3d helpPoint1(0.0, 0.0, 0.0);! x- E0 K8 w5 m" n6 j7 J$ K
section1->AddToSection(rules1, nullNXObject, nullNXObject, nullNXObject, helpPoint1, Section::ModeCreate, false);8 i' l" g0 p' G7 ]7 h/ C$ b( o
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// define the axis Direction *direction1;) Z) e5 i+ e$ Y, ~, N/ _( A
direction1 = workPart->Directions()->CreateDirection(line2, SenseForward, SmartObject::UpdateOptionWithinModeling);
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Point *nullPoint(NULL);' }/ d+ y8 m* n. s3 m: U- Y. e" {% i
Axis *axis1;
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axis1 = workPart->Axes()->CreateAxis(nullPoint, direction1, SmartObject::UpdateOptionWithinModeling);3 P* X7 w' L; ]9 O& ]
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revolveBuilder1->SetAxis(axis1); // commit feature
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Features::Feature *feature2;
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feature2 = revolveBuilder1->CommitFeature();
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revolveBuilder1->Destroy();
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}}
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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