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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Session *theSession = Session::GetSession();/ o4 G5 R2 E/ M4 @& q
Part *workPart(theSession->Parts()->Work());
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Part *displayPart(theSession->Parts()->Display());
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Sketch *nullSketch(NULL);: ~0 w' V: J. o7 J/ c* C0 h
SketchInPlaceBuilder *sketchInPlaceBuilder1;, }9 Q" }' n1 |# x! T, m
sketchInPlaceBuilder1 = workPart->Sketches()->CreateNewSketchInPlaceBuilder(nullSketch);6 D% J! t- Q! S8 h1 m. J" _1 `
sketchInPlaceBuilder1->Plane()->SetMethod(PlaneTypes::MethodTypeFixedZ);. _( _; O! ~ L
Point3d origin1(0.0, 0.0, 0.0);& T1 G. E4 N2 q9 y8 O5 n+ ^
sketchInPlaceBuilder1->Plane()->SetOrigin(origin1);! i8 T8 Y5 J0 m
sketchInPlaceBuilder1->Plane()->Evaluate(); // set the reference theSession->Preferences()->Sketch()->SetCreateInferredConstraints(true);
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theSession->Preferences()->Sketch()->SetContinuousAutoDimensioning(false);& ^7 N% J& B" _, B7 m
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theSession->Preferences()->Sketch()->SetDimensionLabel(Preferences::SketchPreferences::DimensionLabelTypeExpression);, s2 P+ n1 f7 x& \" U4 y8 V' U
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theSession->Preferences()->Sketch()->SetTextSizeFixed(true);; @# x: j- l! s4 }8 h
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theSession->Preferences()->Sketch()->SetFixedTextSize(3.0);
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theSession->Preferences()->Sketch()->SetConstraintSymbolSize(3.0);
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theSession->Preferences()->Sketch()->SetDisplayObjectColor(false);
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theSession->Preferences()->Sketch()->SetDisplayObjectName(true); 5 t/ y- c. C# G0 I2 j4 B
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();0 e3 P8 U0 A4 H, A0 k
sketchInPlaceBuilder1->Destroy();: G. v2 x9 ~) c
sketch1->Activate(Sketch::ViewReorientFalse);, u$ L; ~+ h( A2 y0 P
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// define the dimensions : O/ ^ N m; t U& @$ e+ k: G
double heigth1 = this->doubleHeight1->GetProperties()->GetDouble("Value");
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double heigth2 = this->doubleHeight2->GetProperties()->GetDouble("Value");2 o7 J3 x$ m7 S* E
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];
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sprintf(msg1,"%f",heigth1);
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sprintf(msg2,"%f",heigth2);2 ?7 L+ P; f5 [5 r
sprintf(msg3,"%f",length);5 X9 a" ?9 @7 V% I' |' Z
Expression *height1exp,*height2exp,*lengthexp;$ g3 c& D4 }# ^" T4 U4 n
height1exp= workPart->Expressions()->CreateSystemExpression(msg1);
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height2exp= workPart->Expressions()->CreateSystemExpression(msg2);! K; n {5 M8 Z. f& S; a$ v
lengthexp= workPart->Expressions()->CreateSystemExpression(msg3);" E- }) k" p, J. b
// these for the dimension position: Q5 D% x* P& c, G# y5 V, I
Point3d dimOrigin1(-100, heigth1/2, 0.0);
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Point3d dimOrigin2(length/2, heigth1+100, 0.0);) B& l! ^+ w6 U6 r0 p$ t
Point3d dimOrigin3(length+100, heigth1-heigth2/2, 0.0); // add curves
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Point3d startPoint1(0.0, 0.0, 0.0);$ R: t/ Q4 P- R2 p1 G) Y, h! j i) K
Point3d endPoint1(0.0,heigth1,0.0);# G5 U5 j. s* {; J& [
Point3d endPoint2(length,heigth1,0.0);
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Point3d endPoint3(length,heigth1-heigth2,0.0);% W9 S+ O5 o5 M7 t. I% \# f
Line *line1,*line2,*line3,*line4;7 Y1 i- h# [; L0 r2 T
line1 = workPart->Curves()->CreateLine(startPoint1, endPoint1);# S( U- C0 q( G$ U1 s i1 ], E# \
line2 = workPart->Curves()->CreateLine(endPoint1, endPoint2);, K3 w0 a3 q; h: y- s a
line3 = workPart->Curves()->CreateLine(endPoint2, endPoint3);4 g1 g+ D3 X {" {9 V# n
line4 = workPart->Curves()->CreateLine(endPoint3, startPoint1);
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theSession->ActiveSketch()->AddGeometry(line1, Sketch::InferConstraintsOptionInferCoincidentConstraints);+ J0 o$ f$ w0 K
theSession->ActiveSketch()->AddGeometry(line2, Sketch::InferConstraintsOptionInferCoincidentConstraints);' V, i8 h7 ^$ C1 W- @5 T* C1 U1 D
theSession->ActiveSketch()->AddGeometry(line3, Sketch::InferConstraintsOptionInferCoincidentConstraints);
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theSession->ActiveSketch()->AddGeometry(line4, Sketch::InferConstraintsOptionInferCoincidentConstraints);
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// add constraints& T! H8 }; F j. |& ~" W7 i. B9 @
//..1 x: `% J. P" ]6 {- t: X
// for line1( a7 \2 B2 p' E0 ?$ R4 A. y' n
Sketch::ConstraintGeometry geopoint1;: D, o. E' z( g1 H% P
geopoint1.Geometry = line1;
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geopoint1.PointType = Sketch::ConstraintPointTypeStartVertex;1 D/ V `+ x3 \. S
geopoint1.SplineDefiningPointIndex = 0;
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// find the (0,0,0) point$ s2 Z* ?8 e$ G
Sketch::ConstraintGeometry geopoint2;
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Point *pointOriginal;$ y7 l# j4 d! W) z8 O
pointOriginal = workPart->Points()->CreatePoint(sketch1->Origin());& Y8 i4 K& a K% R# J9 Q" c( O$ \
geopoint2.Geometry = pointOriginal;" i% _$ `2 D7 ?! @ u5 x/ j
geopoint2.PointType = Sketch::ConstraintPointTypeStartVertex;3 s" {5 D8 f" @5 p/ r7 `: H7 k
geopoint2.SplineDefiningPointIndex = 0;- N2 z0 n9 R% l- E
theSession->ActiveSketch()->CreateCoincidentConstraint(geopoint1,geopoint2); Sketch::ConstraintGeometry geoline1;
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geoline1.Geometry = line1;- M6 A$ H; C5 q7 s, Z' l
geoline1.PointType = Sketch::ConstraintPointTypeNone;
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geoline1.SplineDefiningPointIndex = 0;% D: b! U! _0 H. |4 D" L5 i6 n
theSession->ActiveSketch()->CreateVerticalConstraint(geoline1);: J2 @/ P6 Q; g2 r4 x
//..1 v' d2 I! m5 J8 @- H/ N2 @# X2 O, I
// for line2
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Sketch::ConstraintGeometry geoline2;
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geoline2.Geometry = line2;" n' E0 J+ d$ L2 Y+ u- N1 l5 C
geoline2.PointType = Sketch::ConstraintPointTypeNone;! L% `/ p: T# V. O8 [
geoline2.SplineDefiningPointIndex = 0;' w; t# M) _: M+ j, Z; r
theSession->ActiveSketch()->CreateHorizontalConstraint(geoline2);
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//..# \8 v: D- ?& h# |/ S+ Z
// for line3% J- }6 L j" G" H% ^2 i9 B! d
Sketch::ConstraintGeometry geoline3;
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geoline3.Geometry = line3;3 ]/ p0 p0 o, E4 I( G
geoline3.PointType = Sketch::ConstraintPointTypeNone;* g) z, x7 C# N# y3 d, o+ t
geoline3.SplineDefiningPointIndex = 0;
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theSession->ActiveSketch()->CreateVerticalConstraint(geoline3);" |! u/ U; v; x
// use this method to create the constraints p. ^! @2 I9 u
/*SketchConstraintBuilder *line3constraint;
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line3constraint= workPart->Sketches()->CreateConstraintBuilder();: {9 H3 g- b" Z6 M* K
line3constraint->GeometryToConstrain()->Add(line3);
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line3constraint->SetConstraintType(SketchConstraintBuilder::ConstraintVertical);
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line3constraint->Commit();4 W# T) _" ^7 E" k6 H
line3constraint->Destroy();*/& F- |$ b+ \' K1 S( Z$ `8 C' d/ H6 B
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// add dimension$ O* B3 T- R: \4 A1 D4 g
//..
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// for line14 X; q# j e/ e$ b% {
Sketch::DimensionGeometry dimobject1_start;
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dimobject1_start.AssocType = Sketch::AssocTypeStartPoint;7 `& A8 m: O; d5 {3 i9 g9 W8 @( M
dimobject1_start.AssocValue = 0;! ?* l$ b' |4 u# `4 B9 [
dimobject1_start.Geometry = line1;
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dimobject1_start.HelpPoint.X = 0 ;9 l: U% p" C: f. P, D% t8 ~
dimobject1_start.HelpPoint.Y = 0 ;7 n' f! N$ I* W" } c; u& I2 b
dimobject1_start.HelpPoint.Z = 0 ;
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NXObject *nullNXObject1(NULL);
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dimobject1_start.View = nullNXObject1; Sketch::DimensionGeometry dimobject1_end;4 s. ~! ~) U4 V% @$ n, y
dimobject1_end.AssocType = Sketch::AssocTypeEndPoint;, h4 A0 w( X/ Z% `; Q
dimobject1_end.AssocValue = 0;
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dimobject1_end.Geometry = line1;
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dimobject1_end.HelpPoint.X = 0 ; ^! a- K$ N; P+ y. |
dimobject1_end.HelpPoint.Y = 0 ;. \3 T0 a. q8 ~1 Y9 P5 {6 e
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();$ \" m: R( a/ f/ C3 D
//..9 c, D" ~+ T$ V$ v6 N
// for line2
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Sketch::DimensionGeometry dimobject2_start;
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dimobject2_start.AssocType = Sketch::AssocTypeStartPoint;
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dimobject2_start.AssocValue = 0;
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dimobject2_start.Geometry = line2;
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dimobject2_start.HelpPoint.X = 0 ;
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dimobject2_start.HelpPoint.Y = 0 ;& e0 _7 _/ }5 C" }4 k
dimobject2_start.HelpPoint.Z = 0 ;) w4 M9 r. d, w$ F1 L& E3 ?: e+ w- ]: q$ R
dimobject2_start.View = nullNXObject1; Sketch::DimensionGeometry dimobject2_end;
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dimobject2_end.AssocType = Sketch::AssocTypeEndPoint;3 v, ~3 _5 z! a/ q. J! Y" S- V
dimobject2_end.AssocValue = 0;
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dimobject2_end.Geometry = line2;/ b" q ?) S2 k& c2 v: y
dimobject2_end.HelpPoint.X = 0 ;
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dimobject2_end.HelpPoint.Y = 0 ;/ v& z( f9 P6 S" h
dimobject2_end.HelpPoint.Z = 0 ;0 Q- U% S k* b, Y5 b. n
dimobject2_end.View = nullNXObject1; SketchDimensionalConstraint *sketchDimensionalConstraint2 = theSession->ActiveSketch()->CreateDimension(Sketch::ConstraintTypeHorizontalDim,dimobject2_start,dimobject2_end,dimOrigin2,lengthexp,Sketch::DimensionOptionCreateAsDriving); Annotations::Dimension *dimension2;" X( W) G0 q4 V) Z4 C. P
dimension2 = sketchDimensionalConstraint2->AssociatedDimension(); // for line35 f5 W1 P# l1 s7 |2 m
Sketch::DimensionGeometry dimobject3_start;* ?9 F7 R! I+ B2 [1 F
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 ;) u* M- G X7 e, m! L
dimobject3_start.HelpPoint.Y = 0 ;7 W/ r* U2 B1 Y- T; H; B! \
dimobject3_start.HelpPoint.Z = 0 ;) T7 U% q) }' R7 G" u) }' i
dimobject3_start.View = nullNXObject1; Sketch::DimensionGeometry dimobject3_end;
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dimobject3_end.AssocType = Sketch::AssocTypeEndPoint;: U) }2 ?# e$ V( M0 ^! C
dimobject3_end.AssocValue = 0;% Y+ q: b2 M3 C
dimobject3_end.Geometry = line3;
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dimobject3_end.HelpPoint.X = 0 ;" f2 ?8 ?# q9 m2 ~
dimobject3_end.HelpPoint.Y = 0 ;
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dimobject3_end.HelpPoint.Z = 0 ;. X1 o3 j4 h0 I7 |7 n2 X/ ]( `1 }
dimobject3_end.View = nullNXObject1; SketchDimensionalConstraint *sketchDimensionalConstraint3 = theSession->ActiveSketch()->CreateDimension(Sketch::ConstraintTypeVerticalDim,dimobject3_start,dimobject3_end,dimOrigin3,height2exp,Sketch::DimensionOptionCreateAsDriving); Annotations::Dimension *dimension3;) |( j0 w Q0 |/ ]" L
dimension3 = sketchDimensionalConstraint3->AssociatedDimension(); //workPart->Expressions()->Delete(height1exp); theSession->ActiveSketch()->Update(); theSession->ActiveSketch()->Deactivate(Sketch::ViewReorientFalse,Sketch::UpdateLevelModel);" f, X- p) J6 g' U) j1 h( F& |2 E- z
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/* // revolve the body */$ l5 n& K6 P1 I1 D- h: g
Features::Feature *nullFeatures_Feature(NULL);
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Features::RevolveBuilder *revolveBuilder1;
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revolveBuilder1 = workPart->Features()->CreateRevolveBuilder(nullFeatures_Feature);6 }1 M2 s' M2 Y6 [8 ?1 q, u
revolveBuilder1->Limits()->StartExtend()->Value()->SetRightHandSide("0");
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revolveBuilder1->Limits()->EndExtend()->Value()->SetRightHandSide("360");
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revolveBuilder1->SetTolerance(0.01);
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Section *section1;2 Y) ^# \! H+ P. z6 w$ d% v' w, U
section1 = workPart->Sections()->CreateSection(0.0095, 0.01, 0.5);; b2 y2 c+ ~, X, u
revolveBuilder1->SetSection(section1);2 v; j& P2 i' \- y
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section1->SetAllowedEntityTypes(Section::AllowTypesOnlyCurves);2 x4 ?8 {9 F/ K
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std::vector<Features::Feature *> features1(1);
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features1[0] = feature1;" P3 d2 P$ L$ t9 `2 z7 g- X
CurveFeatureRule *curveFeatureRule1;
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curveFeatureRule1 = workPart->ScRuleFactory()->CreateRuleCurveFeature(features1);
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section1->AllowSelfIntersection(false);
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std::vector<SelectionIntentRule *> rules1(1);
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rules1[0] = curveFeatureRule1;
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NXObject *nullNXObject(NULL);/ ^! m6 u6 ^6 Q2 p& k
Point3d helpPoint1(0.0, 0.0, 0.0);
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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);
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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& `% N: i; |! A9 }- w3 w* O6 f
Features::Feature *feature2;* V" |6 b+ u, r* ~; x5 { c2 W4 S
feature2 = revolveBuilder1->CommitFeature();1 I0 v' s( y0 c6 V$ a
revolveBuilder1->Destroy();2 h8 X+ `" c) C4 V
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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