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PLM之家-NX9.0 二次开发实例视频31 NXOpen C++创建基本特征 <1>-草图的创建
5 }: [" P e% G7 P3 i内容：
$ u3 _- K! s9 D6 v草图作为参数化建模的基础，使用代码实现草图的创建过程，主要是对草图环境的初始化，以及草图约束的添加等问题。; @" K, \0 j8 ~# |) i: n
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在NX中，使用NXOpen C++可以很方便的进行JA的录制，从而发掘草图约束中尺寸约束和几何约束的规律，通过这种方式，可以快速的完成开发。$ y& ^. `# y9 z$ _# I% e/ j
NXOpen C++创建草图基本特征
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31 NXOpen C++创建基本特征-草图的创建(1)项目介绍. k- Q. l3 V' a; g* g! x1 d$ J
31 NXOpen C++创建基本特征-草图的创建(2)UI设计% R6 x) @! I& N1 B, Y! E
31 NXOpen C++创建基本特征-草图的创建(3)项目创建! a0 b% F9 y8 F0 v+ L B# O3 S9 c) A
31 NXOpen C++创建基本特征-草图的创建(4)草图特征创建 x2 X+ a1 f# |" @
31 NXOpen C++创建基本特征-草图的创建(5)添加几何到草图
/ u0 {! U* T z 31 NXOpen C++创建基本特征-草图的创建(6)添加草图几何约束) d2 n* C+ k+ \4 x9 E0 d
31 NXOpen C++创建基本特征-草图的创建(7)添加草图尺寸约束" D: X1 g, H. D( y/ h
31 NXOpen C++创建基本特征-草图的创建(8)尺寸和UI关联" y" N) }* d% G1 t- H/ q5 a
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" H2 U7 y( K) ^0 h: I关键代码分享：: n# E& i; p, |# Z- J/ M
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: V$ A8 H6 P4 h% k U2 l- void lesson31_createSkeTCh::createIPSketch()
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- Sketch *nullSketch(NULL);
, \4 v& Z/ T! R2 c' X' e! m4 C - SketchInPlaceBuilder *sketchInPlaceBuilder1;( h/ P$ N: [( |4 g _
- sketchInPlaceBuilder1 = workPart->Sketches()->CreateNewSketchInPlaceBuilder(nullSketch);
3 y$ X6 a3 Z! Y% {6 O - sketchInPlaceBuilder1->SetPlaneOption(Sketch::PlaneOptionNewPlane);
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- //sketchInPlaceBuilder1->Plane()->SetMethod(PlaneTypes::MethodTypeFixedZ);0 v6 w+ c; G9 i$ A' K) i9 r- M
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- # E8 g5 U! c1 }3 g7 G2 l
- // add preference% X7 ?9 K/ U9 W0 i' S2 g
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- theSession->Preferences()->Sketch()->SetContinuousAutoDimensioning(false);& X B# W3 p Y( H
$ e, i; L w5 J- N/ Q+ T$ @! u8 q- Drafting::PreferencesBuilder *preferencesBuilder1;6 K: e( W5 a1 P9 [# P
- preferencesBuilder1 = workPart->SettingsManager()->CreatePreferencesBuilder();: R( \4 S3 p! f F; Y0 J
- preferencesBuilder1->AnnotationStyle()->DimensionStyle()->SetAngularDimensionValuePrecision(3);' s7 O8 m" a4 P, F
- preferencesBuilder1->AnnotationStyle()->DimensionStyle()->SetDimensionValuePrecision(3);& ~$ @+ w0 S$ p0 k
- preferencesBuilder1->Commit();4 v7 R5 s: |) U( I& b7 q
- ! `% T1 v, I4 ` k I* ], s
- preferencesBuilder1->Destroy();% ?$ L( ]4 c8 h6 p
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- NXObject *nXObject1;
( n7 D2 N- F* y2 f- K - nXObject1 = sketchInPlaceBuilder1->Commit();
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- Sketch *sketch1(dynamic_cast<Sketch *>(nXObject1));
. ]! _! w7 D( Z9 U; R; `+ c5 n6 |6 r - Features::Feature *feature1;( S( s* B4 {7 `7 `7 c8 m
- feature1 = sketch1->Feature();0 U6 ?8 A# x7 x; G* h- p) w* [
- feature1->SetName("XY-Plane-Sketch");. B1 H9 n' o- Y; B4 x
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- sketchInPlaceBuilder1->Destroy();+ C' e8 ?: _3 o
/ `5 N4 e( z3 G- //1 active sketch 7 l- L. U8 z Z4 m
) a$ S: o+ T+ C- sketch1->Activate(Sketch::ViewReorientFalse);
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- double height1 = this->expressionHeight1->GetProperties()->GetDouble("Value");
! W- L3 x1 r- q2 z& u! t+ Q2 t3 _# S1 d - double height2 = this->expressionHeight2->GetProperties()->GetDouble("Value");
9 {% n9 q: Q4 g: S - double length = this->expressionLength->GetProperties()->GetDouble("Value");. {9 y+ H( {6 D- ]" i# g0 a. l% q
- // 2.1 create geometry. w+ S) ` \! s2 ]8 N) T- C
5 V, a9 M5 S6 B3 z- Point3d startPoint1(0.0, 0.0, 0.0);
( t. a" b8 t" v - Point3d endPoint1(0, height1, 0.0);
4 ?, k8 H0 A8 P/ p3 n, ]) \ - Point3d endPoint2(length, height1, 0.0);+ V7 b. j3 U3 v
- Point3d endPoint3(length, height1-height2, 0.0); P- \9 U- t- y4 n* _+ i7 x2 l2 V& |7 n
- Point3d origin = sketch1->Origin();
% q t9 |4 {) y4 _ c - Point *originPoint = workPart->Points()->CreatePoint(origin);, T0 I/ `+ x& r7 A' w& l
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- Line *line1,*line2,*line3,*line4;
4 {& N4 P: A, { - line1 = workPart->Curves()->CreateLine(startPoint1, endPoint1);
! J: o5 K* l& H/ q/ m - line2 = workPart->Curves()->CreateLine(endPoint1, endPoint2);
0 u$ d- O4 v" H, J3 o! j - line3 = workPart->Curves()->CreateLine(endPoint2, endPoint3);$ l# s4 e% D( n6 z0 F- I" T
- line4 = workPart->Curves()->CreateLine(endPoint3, startPoint1);
7 G" d4 ?9 \$ y - // 2.2 add geometry
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- sketch1->AddGeometry(line1,Sketch::InferConstraintsOptionInferCoincidentConstraints);$ p5 q( Q5 { n8 |
- sketch1->AddGeometry(line2,Sketch::InferConstraintsOptionInferCoincidentConstraints);/ y: ` R. d7 U2 |8 w
- sketch1->AddGeometry(line3,Sketch::InferConstraintsOptionInferCoincidentConstraints);
/ {, W9 s& l/ } - sketch1->AddGeometry(line4,Sketch::InferConstraintsOptionInferCoincidentConstraints);6 w8 h0 c0 B9 X0 v u
) o4 n- ^2 Y! g9 Z8 f- //3 add constraints ( gemo)5 a9 }; S) B; @& a# ~
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- Sketch::ConstraintGeometry geomline1;
: J. ]0 g7 D# L8 Q; t: J9 G+ v - geomline1.Geometry = line1;
8 x' i0 T+ w% A8 R, S- M4 h; z - geomline1.PointType = Sketch::ConstraintPointTypeNone;0 r0 H( ?/ l5 n# z- }
- geomline1.SplineDefiningPointIndex = 0;% b1 v7 l5 _1 w, f& f/ [
- sketch1->CreateVerticalConstraint(geomline1);# a3 O2 J6 d5 c6 e5 V$ x+ w
& A. \ g _+ f% Y/ R6 E- Sketch::ConstraintGeometry geomline2;
4 G) L: w8 B4 T; s6 w - geomline2.Geometry = line2;
0 M A9 v: d7 M2 n8 p - geomline2.PointType = Sketch::ConstraintPointTypeNone;
3 M; V P$ O8 } T8 }* E0 ? - geomline2.SplineDefiningPointIndex = 0;
+ H; K" t" Q4 g& ]% O- O( Q - sketch1->CreateHorizontalConstraint(geomline2);
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3 r4 a- U) c; _% V" A- Sketch::ConstraintGeometry geomline3;& z) {) i6 C% w0 c
- geomline3.Geometry = line3;5 j$ E, p" Q: L# c
- geomline3.PointType = Sketch::ConstraintPointTypeNone;
7 E3 ^! ^6 r" l - geomline3.SplineDefiningPointIndex = 0;
, N- l8 ~6 ?1 f2 g; ~0 B - sketch1->CreateVerticalConstraint(geomline3);
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- Sketch::ConstraintGeometry geomline1_startPoint;) a3 K# g7 C- l' C: u
- geomline1_startPoint.Geometry = line1;
( C; o1 t2 @1 H4 i& n3 |; A - geomline1_startPoint.PointType = Sketch::ConstraintPointTypeStartVertex;
6 Z, o! x0 m& U9 R9 q3 ^2 u - geomline1.SplineDefiningPointIndex = 0;
1 [2 r0 C7 ]2 _ - Sketch::ConstraintGeometry geomline2_originPoint;' J$ p$ b' ^5 K6 M
- geomline2_originPoint.Geometry = originPoint;
$ ~6 |& E6 D/ S M - geomline2_originPoint.PointType = Sketch::ConstraintPointTypeNone;! d* X8 @4 W/ y E* b- h( W. t
- geomline2_originPoint.SplineDefiningPointIndex = 0;/ p; Y7 g' p4 ?5 w
- sketch1->CreateCoincidentConstraint(geomline1_startPoint,geomline2_originPoint);
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- //4 add constraints (dimension)
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- NXObject *nullNXObject(NULL);9 r+ w* M$ \; L! C
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- stringstream s_height1,s_height2,s_length;- L. y* H) M1 C2 V* V: F8 f
- s_height1 <<height1;
& l# O7 Z1 B4 r6 g8 f - s_height2 <<height2;
# D' K/ C: U. F w7 Z - s_length <<length;& t' G- L+ |5 o a: ^
+ O( N4 o- P9 m5 }# q- Expression *expression1,*expression2,*expression3;
& J+ r0 i$ _3 ]3 ?/ c3 | - expression1 = workPart->Expressions()->CreateSystemExpression(s_height1.str());
3 J8 G1 _+ ^, O8 g6 D7 m# {! \ - expression2 = workPart->Expressions()->CreateSystemExpression(s_length.str());% w& m" O# q) \2 T4 W9 B7 f
- expression3 = workPart->Expressions()->CreateSystemExpression(s_height2.str());4 M5 U/ H9 X' v( d5 ^; F4 l" W
* I/ p! y8 b9 }5 ~% v9 r8 ]; J) X! G( L- // line1 dimension
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- Sketch::DimensionGeometry dimLine1_startPoint;
. C# W3 r! \. E - dimLine1_startPoint.Geometry = line1;
% L# O3 x0 G8 a7 n - dimLine1_startPoint.AssocType = Sketch::AssocTypeStartPoint;
% M2 L; L& B# v - dimLine1_startPoint.AssocValue = 0;
, [1 [2 Z1 V+ M. F+ @ - dimLine1_startPoint.HelpPoint.X = 0.0;
3 W0 b5 x4 o% g) L4 ^; g+ q% [- ~ - dimLine1_startPoint.HelpPoint.Y = 0.0;
6 ^, Y2 k2 g: Q8 R! h - dimLine1_startPoint.HelpPoint.Z = 0.0;
6 P. F# v$ u s" Z - dimLine1_startPoint.View = nullNXObject;
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- Sketch::DimensionGeometry dimLine1_endPoint;! w5 Z! z1 g: `, p2 v
- dimLine1_endPoint.Geometry = line1;0 i2 F+ `1 M+ D7 ?
- dimLine1_endPoint.AssocType = Sketch::AssocTypeEndPoint;
7 }, s, F; e r! E; P0 P - dimLine1_endPoint.AssocValue = 0;( I4 m( ^8 Y3 i7 \" j
- dimLine1_endPoint.HelpPoint.X = 0.0;
) n. k: @+ ?4 r0 @1 W& w$ Y - dimLine1_endPoint.HelpPoint.Y = 0.0;
0 c% H1 @; q8 ^$ o6 b - dimLine1_endPoint.HelpPoint.Z = 0.0;3 B3 L1 }/ Q) _! a
- dimLine1_endPoint.View = nullNXObject;
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- Point3d dimOrigin1(-100, height1/2, 0.0);- X) Q9 Q4 o/ s6 q, `4 ]/ K
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- sketch1->CreateDimension(Sketch::ConstraintTypeParallelDim, dimLine1_startPoint, dimLine1_endPoint, dimOrigin1, expression1, Sketch::DimensionOptionCreateAsDriving);
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- // line2 dimension
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- Sketch::DimensionGeometry dimLine2_startPoint;, q6 S2 j+ @; }" S
- dimLine2_startPoint.Geometry = line2;& |* e4 J H) R9 r4 u
- dimLine2_startPoint.AssocType = Sketch::AssocTypeStartPoint;9 y5 K9 S7 \& h- O* c3 ~" D0 T, t
- dimLine2_startPoint.AssocValue = 0;
$ W+ N0 D: ?. M5 ~8 @ - dimLine2_startPoint.HelpPoint.X = 0.0;% C+ K$ W! o8 K& q1 C% s
- dimLine2_startPoint.HelpPoint.Y = 0.0;
6 c, g6 p: T* ^( F8 Z - dimLine2_startPoint.HelpPoint.Z = 0.0;4 p0 G$ [2 ~! u/ `1 M$ D+ Y" B
- dimLine2_startPoint.View = nullNXObject;
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- Sketch::DimensionGeometry dimLine2_endPoint;; `" v3 Y; Z- K
- dimLine2_endPoint.Geometry = line2;
) q) O& E. L, L7 N1 s$ x! T - dimLine2_endPoint.AssocType = Sketch::AssocTypeEndPoint;) S2 N7 i$ Q& W* ?
- dimLine2_endPoint.AssocValue = 0;
+ h3 | H* n3 X6 x/ r9 r& T# ` - dimLine2_endPoint.HelpPoint.X = 0.0;! R0 K" o2 M* y2 p: i1 C, v: ]/ n K
- dimLine2_endPoint.HelpPoint.Y = 0.0;4 X2 @5 Y; O, i6 O; k6 q& ?: R; W
- dimLine2_endPoint.HelpPoint.Z = 0.0;
* C; j5 n. z6 X/ f; v9 Q" M1 [9 [3 h# A - dimLine2_endPoint.View = nullNXObject;
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' h" S& K; J3 u: Z8 c$ ?3 K8 d. k- Point3d dimOrigin2(length /2,100 + height1, 0.0);
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4 E- d% W1 u% R+ J7 W/ l) j1 F- sketch1->CreateDimension(Sketch::ConstraintTypeParallelDim, dimLine2_startPoint, dimLine2_endPoint, dimOrigin2, expression2, Sketch::DimensionOptionCreateAsDriving);1 Z, l& v6 a9 a
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- // line3 dimension
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/ o0 b. V3 x2 o0 x$ u0 j1 v; h- Sketch::DimensionGeometry dimLine3_startPoint;
% [5 I, }0 a! f& Z! v9 v, b9 Q- N - dimLine3_startPoint.Geometry = line3;
P: r* O( Q9 q5 ] [ - dimLine3_startPoint.AssocType = Sketch::AssocTypeStartPoint;% k( ^7 Q+ K9 d$ G
- dimLine3_startPoint.AssocValue = 0;! H9 M# ^5 [0 n
- dimLine3_startPoint.HelpPoint.X = 0.0;; ~% N6 Q' U, c3 p( X$ O
- dimLine3_startPoint.HelpPoint.Y = 0.0;
r; u5 ~0 D% k - dimLine3_startPoint.HelpPoint.Z = 0.0;+ g' t) C/ R3 K0 H7 u' L! h
- dimLine3_startPoint.View = nullNXObject;, [6 O. @, v. T. Z$ }
; ?. x" S4 T G! r- k' d- Sketch::DimensionGeometry dimLine3_endPoint;0 E4 q4 Z, k# ]7 A7 a
- dimLine3_endPoint.Geometry = line3;$ i; S! L9 h* }' \) r% I ~- s
- dimLine3_endPoint.AssocType = Sketch::AssocTypeEndPoint;
' N" O3 ^+ e! B, c; C - dimLine3_endPoint.AssocValue = 0;
?- ]) _ I( R8 G3 T7 Q7 c - dimLine3_endPoint.HelpPoint.X = 0.0;
8 U4 {7 Z5 L- V8 l! m& S1 u - dimLine3_endPoint.HelpPoint.Y = 0.0;# }! R$ X8 X9 P$ l6 v7 w( S$ V
- dimLine3_endPoint.HelpPoint.Z = 0.0;
" L. \/ V! H& ^9 e$ X1 j2 W - dimLine3_endPoint.View = nullNXObject;
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+ A. S$ l3 z$ i( u- Point3d dimOrigin3( 100 + length, height1-height2+ height2 /2 , 0.0);
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- sketch1->CreateDimension(Sketch::ConstraintTypeParallelDim, dimLine3_startPoint, dimLine3_endPoint, dimOrigin3, expression3, Sketch::DimensionOptionCreateAsDriving);; e) k- J' X; b2 q* @) M2 N
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- //5 update & deactive
7 [& Z! g/ Y/ M% ]4 } - sketch1->Update();8 P) t% N% n8 j# g+ n' D6 @
- f$ u5 e3 N) L; {- sketch1->Deactivate(Sketch::ViewReorientFalse,Sketch::UpdateLevelModel);
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- delete expression1;5 T6 y& o5 H# F0 r5 O' J
- delete expression2;: Q7 A' {1 O* C0 O6 Q5 S) p: g" ]
- delete expression3;
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老大，您的教程很给力哟，什么时候才能膜拜呢？？
