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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
/ K! H% m* O0 k7 Y0 t C内容：
0 j7 ^( }- G7 o, C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。
2 _7 Q5 t# ^5 T# r, y2 `目的：
* }- P9 X4 `2 i% @7 K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。: e! U( i% s7 C4 O
NXOpen C++创建草图基本特征
4 v [& V5 D3 |! j& T2 a+ U 31 NXOpen C++创建基本特征-草图的创建(1)项目介绍
" g( K) S$ u% F' j, L) L 31 NXOpen C++创建基本特征-草图的创建(2)UI设计7 v5 F: o( c9 X7 R
31 NXOpen C++创建基本特征-草图的创建(3)项目创建' l" v- a) L! ^: ^! {3 z. R" ?6 Q
31 NXOpen C++创建基本特征-草图的创建(4)草图特征创建* u8 \, m8 O$ v" f# ]8 R
31 NXOpen C++创建基本特征-草图的创建(5)添加几何到草图
3 U3 P* x& i% V' |9 X* R- j 31 NXOpen C++创建基本特征-草图的创建(6)添加草图几何约束& r, {4 q5 P$ Z
31 NXOpen C++创建基本特征-草图的创建(7)添加草图尺寸约束8 r0 O7 e, J' {% L
31 NXOpen C++创建基本特征-草图的创建(8)尺寸和UI关联; Q5 K0 V! | _+ j. S7 B2 y
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$ `8 ~2 {; Z. m4 {关键代码分享：0 }5 v1 C; c* n1 H6 ^: E
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, V, x2 N, f0 d2 q- void lesson31_createSkeTCh::createIPSketch()( q, k$ {9 j0 G) u$ y) X) l
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- Sketch *nullSketch(NULL);
8 t* B3 u Q3 y# i) ]3 l c$ f% `+ j - SketchInPlaceBuilder *sketchInPlaceBuilder1;; L; n5 V' p3 J+ t" q+ y) ?/ l
- sketchInPlaceBuilder1 = workPart->Sketches()->CreateNewSketchInPlaceBuilder(nullSketch);
' c' A" [8 U! ~3 Q* x - sketchInPlaceBuilder1->SetPlaneOption(Sketch::PlaneOptionNewPlane);( a7 a' }2 p* ^* A
" _$ b1 w. g. C: \2 L- //sketchInPlaceBuilder1->Plane()->SetMethod(PlaneTypes::MethodTypeFixedZ);8 ]9 T3 K3 H" j( s% v$ Z8 {
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" q! C- Q1 d: e9 L9 p- // add preference4 L6 `, C+ E8 I( E0 N, @
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- theSession->Preferences()->Sketch()->SetContinuousAutoDimensioning(false);) c' ~* T$ o- i- O. [: K& ]
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- Drafting::PreferencesBuilder *preferencesBuilder1;5 |. _! d" Y2 e7 g ?& P# C
- preferencesBuilder1 = workPart->SettingsManager()->CreatePreferencesBuilder();
3 C8 h9 V, l0 j7 v/ I- M - preferencesBuilder1->AnnotationStyle()->DimensionStyle()->SetAngularDimensionValuePrecision(3);
: z1 u1 F: R4 ?" i - preferencesBuilder1->AnnotationStyle()->DimensionStyle()->SetDimensionValuePrecision(3);! ~& h2 ]& X$ e9 q& H
- preferencesBuilder1->Commit();# N g1 k9 u7 R% g7 m! _
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- preferencesBuilder1->Destroy();
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- NXObject *nXObject1;
( r* v) z6 s% [- l% f6 M - nXObject1 = sketchInPlaceBuilder1->Commit();" X4 Y' s8 W% w$ ?" X7 y, w
" d, l, u1 N% Q/ H" f- Sketch *sketch1(dynamic_cast<Sketch *>(nXObject1));! P( P+ t+ f. G) w/ E# I
- Features::Feature *feature1;
# ^5 S7 o% w- u& q - feature1 = sketch1->Feature();" n. n1 T, c! G) M
- feature1->SetName("XY-Plane-Sketch");
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/ Y8 @/ ]1 h% M% F7 w* w. F/ r - sketchInPlaceBuilder1->Destroy();
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- //1 active sketch
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- sketch1->Activate(Sketch::ViewReorientFalse);
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- double height1 = this->expressionHeight1->GetProperties()->GetDouble("Value");. a5 H5 _' t- K# f
- double height2 = this->expressionHeight2->GetProperties()->GetDouble("Value");
; e; L8 U! @2 b* L5 G - double length = this->expressionLength->GetProperties()->GetDouble("Value");$ y5 ?6 h- | l2 e# n+ c) P/ y
- // 2.1 create geometry$ f5 {& x/ j4 g- U
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- Point3d startPoint1(0.0, 0.0, 0.0);
- i4 N) @/ A `) }! U - Point3d endPoint1(0, height1, 0.0);. S, E# s( Y4 Y5 S3 N% T5 _/ W
- Point3d endPoint2(length, height1, 0.0);
' h, W, t6 _: R' n: N0 j - Point3d endPoint3(length, height1-height2, 0.0);. I$ {7 l, Q0 E, p4 g: S
- Point3d origin = sketch1->Origin();: s& c7 Q- p l) z7 I/ ~9 Q
- Point *originPoint = workPart->Points()->CreatePoint(origin);
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- Line *line1,*line2,*line3,*line4;
3 V; K# n7 V+ b, O" L) Q+ \( J4 J - line1 = workPart->Curves()->CreateLine(startPoint1, endPoint1);5 K" c+ a+ ?* ^ B! a8 ]9 Z. A
- line2 = workPart->Curves()->CreateLine(endPoint1, endPoint2);! N3 G- ?0 u. `! W4 y
- line3 = workPart->Curves()->CreateLine(endPoint2, endPoint3);
6 \9 G; X5 H- \" a3 S: Q - line4 = workPart->Curves()->CreateLine(endPoint3, startPoint1);! Q2 G9 @. y0 ?: H; J* P
- // 2.2 add geometry4 Z3 y# S" C4 [1 F% b6 l
: Y! E# e& g( W9 F1 P3 b- sketch1->AddGeometry(line1,Sketch::InferConstraintsOptionInferCoincidentConstraints);! N8 ~( j9 c# C
- sketch1->AddGeometry(line2,Sketch::InferConstraintsOptionInferCoincidentConstraints);
' z1 I- ] {# z - sketch1->AddGeometry(line3,Sketch::InferConstraintsOptionInferCoincidentConstraints);
9 i& C+ {3 W; N8 ^ - sketch1->AddGeometry(line4,Sketch::InferConstraintsOptionInferCoincidentConstraints);: F% l1 ]! `9 g/ u# M* ]9 x
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- //3 add constraints ( gemo)
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- Sketch::ConstraintGeometry geomline1;
0 B' Q3 S1 ? x" G - geomline1.Geometry = line1;
' a7 ^) l h' W1 E9 f - geomline1.PointType = Sketch::ConstraintPointTypeNone;
) Q8 b& g! _, j5 ~0 L2 f+ q, l - geomline1.SplineDefiningPointIndex = 0;
6 d1 [/ m( T- H- p! E/ t: n4 v' k* f* ^ - sketch1->CreateVerticalConstraint(geomline1);2 z3 h% g& |5 x. M6 [1 \5 _7 N
1 r4 _1 R+ J4 w) I K- Sketch::ConstraintGeometry geomline2;- F4 r, f; ]$ X6 q1 J4 P" m# v( Y
- geomline2.Geometry = line2;6 k+ R# O( `# B0 Q; Y$ K8 J! r5 U
- geomline2.PointType = Sketch::ConstraintPointTypeNone;
% W% Y1 `; B7 E. W7 N - geomline2.SplineDefiningPointIndex = 0;+ e4 `' H% ?1 J* ^ i
- sketch1->CreateHorizontalConstraint(geomline2);- @9 B t6 I" @8 Q) {
6 a/ A- u# ^- l9 C# K \- Sketch::ConstraintGeometry geomline3; `4 o t8 a% T' {. j& F
- geomline3.Geometry = line3;% G) z) S" F! p: @! Z/ T
- geomline3.PointType = Sketch::ConstraintPointTypeNone;
4 S& M4 g# x# `- l" g0 ` - geomline3.SplineDefiningPointIndex = 0;8 O( b2 U) l1 {/ p% }
- sketch1->CreateVerticalConstraint(geomline3);6 ~ L) t8 J7 H
9 C2 N7 A% n& D; j7 o* m- Sketch::ConstraintGeometry geomline1_startPoint;
# ?8 n! w5 x. f# Q - geomline1_startPoint.Geometry = line1;3 M- T* i. z, t/ i' \- P
- geomline1_startPoint.PointType = Sketch::ConstraintPointTypeStartVertex; l) G# x1 ^. U% b# @
- geomline1.SplineDefiningPointIndex = 0;
. j1 I# y% y+ g1 v - Sketch::ConstraintGeometry geomline2_originPoint;) |. k& i! B9 O$ S" l9 p
- geomline2_originPoint.Geometry = originPoint;
4 f3 X. T, {; ]- c: l - geomline2_originPoint.PointType = Sketch::ConstraintPointTypeNone;
6 G# D% W2 U% N/ M% E( o - geomline2_originPoint.SplineDefiningPointIndex = 0;
$ t; t7 V' Y0 s1 ?& z/ p$ y4 C5 J5 D - sketch1->CreateCoincidentConstraint(geomline1_startPoint,geomline2_originPoint);: p, X. I$ E3 F: p5 w
) }2 Y6 I+ X; k- //4 add constraints (dimension)
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; ]2 l& ~5 ]7 P- NXObject *nullNXObject(NULL);' n( i& V( J1 Z) i
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) l& R! I" C. y9 z3 D! t5 r- stringstream s_height1,s_height2,s_length;
, _7 [/ }9 ]" ~+ w- P - s_height1 <<height1;9 ?4 @$ U( m' _: O, b+ U$ H% d
- s_height2 <<height2;# c( r0 ~4 C. T- l8 a) v
- s_length <<length;! G/ r1 [" N$ L7 {9 z1 a- Y/ W. z
: B1 m& }( z9 c' v) Q3 a( q5 G- Expression *expression1,*expression2,*expression3;( `% x8 C# X! j: ^% v" \
- expression1 = workPart->Expressions()->CreateSystemExpression(s_height1.str());& A5 w- z2 ]# k, Y
- expression2 = workPart->Expressions()->CreateSystemExpression(s_length.str());
( r' U; f6 c" E - expression3 = workPart->Expressions()->CreateSystemExpression(s_height2.str());& J2 I3 C$ M' S, Y/ E6 Q4 @
5 D' |) D( a" R2 i: @4 I- // line1 dimension
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2 C% O& v+ {' K* H- Sketch::DimensionGeometry dimLine1_startPoint;
5 X5 U- R- E9 {; H6 F - dimLine1_startPoint.Geometry = line1;
7 M" w, a: [( V( A9 [: x2 X- [ - dimLine1_startPoint.AssocType = Sketch::AssocTypeStartPoint;1 h$ [# ~- t4 k8 s' M
- dimLine1_startPoint.AssocValue = 0;
/ E& h9 s9 E: [2 A - dimLine1_startPoint.HelpPoint.X = 0.0;
) B4 |* S3 j* ]0 ]# ?) ^ - dimLine1_startPoint.HelpPoint.Y = 0.0;
0 D; [9 u% D4 ]/ j1 [1 }( k9 A7 ` - dimLine1_startPoint.HelpPoint.Z = 0.0;
/ }5 o" {$ ~% D6 p! U - dimLine1_startPoint.View = nullNXObject;! Y! `3 y j' T. f
6 Q$ o8 d8 j3 j/ ]- b- Sketch::DimensionGeometry dimLine1_endPoint;
( a( d' v: B" U& ^) ]1 e - dimLine1_endPoint.Geometry = line1;
, {, D" i6 e. R7 B; c! E& H - dimLine1_endPoint.AssocType = Sketch::AssocTypeEndPoint;+ |3 N6 ]+ ?3 n) j' p. l( r
- dimLine1_endPoint.AssocValue = 0;* v( K$ s; m% y* t& p
- dimLine1_endPoint.HelpPoint.X = 0.0;
' ~2 E( ^/ ]# k* i3 L0 P" L - dimLine1_endPoint.HelpPoint.Y = 0.0;
/ s" A4 b! K% Y [2 T4 R# G: x( U" N - dimLine1_endPoint.HelpPoint.Z = 0.0;
# P# _8 v% M- X X6 r2 ] - dimLine1_endPoint.View = nullNXObject;& q' G- n; G2 G+ M! P1 m
' Y0 w+ J8 \: z) q# C C% [- Point3d dimOrigin1(-100, height1/2, 0.0);% `. R2 r- P" `& l# v* v
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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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1 T" C. t$ q% K5 O, S4 R- Sketch::DimensionGeometry dimLine2_startPoint;! r9 l! j: t4 Z; l
- dimLine2_startPoint.Geometry = line2;
6 U4 _1 @( T* M - dimLine2_startPoint.AssocType = Sketch::AssocTypeStartPoint;
$ T, i3 r2 `6 q& p, b5 w4 J i, u+ d - dimLine2_startPoint.AssocValue = 0;. |9 Z3 H. X) N( {& O6 Y
- dimLine2_startPoint.HelpPoint.X = 0.0;
+ W$ i- i2 |7 V1 X - dimLine2_startPoint.HelpPoint.Y = 0.0;
& r% m R; L% G. X6 r9 o2 S7 u H - dimLine2_startPoint.HelpPoint.Z = 0.0;
1 l3 E8 v! I9 Y! M, G, F5 o) i - dimLine2_startPoint.View = nullNXObject;! u+ R N& _+ ~4 e& e* V, L
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- Sketch::DimensionGeometry dimLine2_endPoint;
8 O( u( M) u& Y7 V+ ]$ L) R( |0 Q - dimLine2_endPoint.Geometry = line2;
* e2 _" Y8 S* B6 v3 @+ e! x1 }/ A - dimLine2_endPoint.AssocType = Sketch::AssocTypeEndPoint;/ X/ t6 p8 v }
- dimLine2_endPoint.AssocValue = 0;
) H0 h5 e5 A2 Z$ p7 Q/ k4 ~: ] - dimLine2_endPoint.HelpPoint.X = 0.0;
) j1 }, d' E2 S% s1 z* }- r" Z - dimLine2_endPoint.HelpPoint.Y = 0.0;
+ @2 {3 u+ s( s/ i - dimLine2_endPoint.HelpPoint.Z = 0.0;
0 ?# G! f( a7 L1 t0 w7 Q - dimLine2_endPoint.View = nullNXObject;3 c1 C0 G {9 n
6 _( k/ Q; {5 w5 m- Point3d dimOrigin2(length /2,100 + height1, 0.0);6 Q" q8 P- a0 h7 ~
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- sketch1->CreateDimension(Sketch::ConstraintTypeParallelDim, dimLine2_startPoint, dimLine2_endPoint, dimOrigin2, expression2, Sketch::DimensionOptionCreateAsDriving);
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' h e u' V# v2 t- C# F - // line3 dimension
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- Sketch::DimensionGeometry dimLine3_startPoint;% Z* ~! F! u8 U C- \; ~% r8 m
- dimLine3_startPoint.Geometry = line3;( \. C7 t4 Z/ L! A
- dimLine3_startPoint.AssocType = Sketch::AssocTypeStartPoint;1 s0 t2 Z( ~3 K' u" H: b+ B6 ~4 f8 H
- dimLine3_startPoint.AssocValue = 0;
6 I& I( u6 A& K% x' d9 w4 [ - dimLine3_startPoint.HelpPoint.X = 0.0;8 ?! S6 M! p4 p+ S: m v
- dimLine3_startPoint.HelpPoint.Y = 0.0;/ E+ y h' f% f( Z0 g7 w
- dimLine3_startPoint.HelpPoint.Z = 0.0;
[% }% Y7 k$ x/ y$ _# H: c# R - dimLine3_startPoint.View = nullNXObject;: m6 O: }7 w2 C$ B( S" v
: v' G% w n6 |5 ?, f% A* ]- Sketch::DimensionGeometry dimLine3_endPoint;
. ?! \) H$ H3 n6 s3 A: @ - dimLine3_endPoint.Geometry = line3;
8 b, v, m }+ ^1 r& {6 e7 u - dimLine3_endPoint.AssocType = Sketch::AssocTypeEndPoint;
" a( m- r" y& ~3 R4 {* n5 \; O - dimLine3_endPoint.AssocValue = 0;
$ [/ G$ u4 \7 t* t - dimLine3_endPoint.HelpPoint.X = 0.0;2 `" \7 t4 o8 i: X5 O. k& a; ]
- dimLine3_endPoint.HelpPoint.Y = 0.0;$ Z7 S; g5 ]; N8 A& j8 e
- dimLine3_endPoint.HelpPoint.Z = 0.0;
4 t: {1 q0 R5 e* f+ j' J - dimLine3_endPoint.View = nullNXObject;! F& N; Y8 k8 t3 y( Z" W
* v2 N5 O3 X& J3 _- 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);
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4 M% }, w# K R: B a# X8 P8 T- //5 update & deactive
- d- K p2 E' c7 ]; Q C - sketch1->Update();
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$ C% k* O! e) N' P/ l- sketch1->Deactivate(Sketch::ViewReorientFalse,Sketch::UpdateLevelModel);# L! a/ D' u$ Y" _! p
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- delete expression1;$ {/ A; ?7 z" Y0 l" [4 P
- delete expression2;0 L0 j+ g% h; x, U. G# {
- delete expression3;; q/ j5 B6 @$ p7 p8 @
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老大，您的教程很给力哟，什么时候才能膜拜呢？？
