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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, e8 Q! R% t" L/ q" G3 V
内容：! a( [9 e: h* f! `" z6 q2 G5 @
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。( U W- e& F9 C! z- y
目的：" n3 r' ]" U% ?& t
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。6 ], m: t" a* R8 C- Y6 X
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& c/ |( \ r/ x+ o e
31 NXOpen C++创建基本特征-草图的创建(2)UI设计( A" b# r7 z5 _) R& G5 `" X+ Y4 }
31 NXOpen C++创建基本特征-草图的创建(3)项目创建
+ p2 x+ L) i" i. s$ W, e1 Y 31 NXOpen C++创建基本特征-草图的创建(4)草图特征创建, V: R; d ]; n- `; R$ {6 D
31 NXOpen C++创建基本特征-草图的创建(5)添加几何到草图/ ^4 t2 w5 e, U9 v4 e" E
31 NXOpen C++创建基本特征-草图的创建(6)添加草图几何约束0 d5 a+ g: x `. X4 c
31 NXOpen C++创建基本特征-草图的创建(7)添加草图尺寸约束. X9 Q. H9 [% Y" Z% E
31 NXOpen C++创建基本特征-草图的创建(8)尺寸和UI关联! O) B0 H. v8 T' i& Y b' I# D
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: L/ I; P2 a5 Z( X关键代码分享：3 f r7 k' j! w5 S9 f6 S' w. \! @( @. T
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- void lesson31_createSkeTCh::createIPSketch()
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- Sketch *nullSketch(NULL);
2 v! |4 r8 |6 f' `8 d - SketchInPlaceBuilder *sketchInPlaceBuilder1;2 ~, V( |0 N3 d7 ~: j2 ~
- sketchInPlaceBuilder1 = workPart->Sketches()->CreateNewSketchInPlaceBuilder(nullSketch);
, W ]* V6 e# U5 I7 A+ N( k - sketchInPlaceBuilder1->SetPlaneOption(Sketch::PlaneOptionNewPlane);' Q+ p6 [7 ~9 }! r+ P
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- //sketchInPlaceBuilder1->Plane()->SetMethod(PlaneTypes::MethodTypeFixedZ);
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' p) ? y) `6 e, N2 P) d: K2 _- // add preference
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* @9 B6 [7 X, ]0 z; L# `- theSession->Preferences()->Sketch()->SetContinuousAutoDimensioning(false);
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+ M7 ^5 x5 M7 A" j* M- Drafting::PreferencesBuilder *preferencesBuilder1;) I% x: N0 m1 F, f6 x1 Y
- preferencesBuilder1 = workPart->SettingsManager()->CreatePreferencesBuilder();
/ a r2 \, e) r9 D/ n: y$ ] A; e - preferencesBuilder1->AnnotationStyle()->DimensionStyle()->SetAngularDimensionValuePrecision(3);) H0 Y" \8 @; F' N, M4 j
- preferencesBuilder1->AnnotationStyle()->DimensionStyle()->SetDimensionValuePrecision(3);2 p% K% E1 r: L) `/ C, n
- preferencesBuilder1->Commit();5 G: X. ^! o) w' I" C
; `# A4 a# i" k# P9 h* a, @. O- preferencesBuilder1->Destroy();
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- NXObject *nXObject1;
' Q7 W( ]6 r; e; M - nXObject1 = sketchInPlaceBuilder1->Commit();9 d% p j; F% V: u$ j
! |- ?- D/ T) v k- Sketch *sketch1(dynamic_cast<Sketch *>(nXObject1));
) T: N* d p" B) H( P - Features::Feature *feature1;& N0 L4 p" F& {$ m$ m: J# T
- feature1 = sketch1->Feature();3 b, A; j& Y5 `& b$ ]
- feature1->SetName("XY-Plane-Sketch");
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4 `; r* _# P" f2 b' [ - sketchInPlaceBuilder1->Destroy();) [/ L& M$ b$ ~9 G: y
3 X9 P( ~3 M9 V+ W- //1 active sketch 5 b/ S! x ^7 V
* F2 c+ g" L# `2 Q* a- sketch1->Activate(Sketch::ViewReorientFalse);$ n1 Y7 h6 H1 E* W/ ]0 x
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7 w0 Q" q d# m, n) j2 t8 L/ O - double height1 = this->expressionHeight1->GetProperties()->GetDouble("Value");7 A, E, \: ^1 R
- double height2 = this->expressionHeight2->GetProperties()->GetDouble("Value");, e0 G- `6 c- |
- double length = this->expressionLength->GetProperties()->GetDouble("Value");
7 X8 s G0 H1 S( _6 P$ a: T - // 2.1 create geometry' L0 O0 @+ h# I& H! K$ C
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- Point3d startPoint1(0.0, 0.0, 0.0);
$ v9 w7 n7 m7 k7 r - Point3d endPoint1(0, height1, 0.0);6 ~/ U4 Z5 G+ A( D2 y2 m& S
- Point3d endPoint2(length, height1, 0.0);
3 m1 A. L) k8 }6 }# w- J" K - Point3d endPoint3(length, height1-height2, 0.0);
/ m/ \) z' ^" T6 B1 a4 C - Point3d origin = sketch1->Origin();! G8 D5 O+ I$ V5 j4 q$ e1 T
- Point *originPoint = workPart->Points()->CreatePoint(origin);
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7 Q0 B; r& N: Z6 G' a$ c2 R- Line *line1,*line2,*line3,*line4;) m2 F# k) k: w. {9 H3 }
- line1 = workPart->Curves()->CreateLine(startPoint1, endPoint1);
5 t0 y2 B2 m8 E3 o) I" K - line2 = workPart->Curves()->CreateLine(endPoint1, endPoint2);8 E$ ~( i: D, H! h' Z
- line3 = workPart->Curves()->CreateLine(endPoint2, endPoint3);
- U& \2 n. [+ u% B/ t5 P! D' X - line4 = workPart->Curves()->CreateLine(endPoint3, startPoint1);
$ ~; h. Z1 M6 n. M - // 2.2 add geometry, M) h& d9 ^3 _$ d
- r& K8 n) Y) n% q6 P) _5 k% J- sketch1->AddGeometry(line1,Sketch::InferConstraintsOptionInferCoincidentConstraints);. C' ^! R0 }; }0 \6 g
- sketch1->AddGeometry(line2,Sketch::InferConstraintsOptionInferCoincidentConstraints);
# \. M9 l3 H% ]& K" e" c0 P1 k - sketch1->AddGeometry(line3,Sketch::InferConstraintsOptionInferCoincidentConstraints);
& h# D$ k: r2 [' ~ - sketch1->AddGeometry(line4,Sketch::InferConstraintsOptionInferCoincidentConstraints);$ l: d0 f8 S) w% ]( u& j# G
2 h' e/ Q2 T' @ j" b- //3 add constraints ( gemo)
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6 E0 ?7 o( E ?8 e% Z7 v5 V- Sketch::ConstraintGeometry geomline1;# H4 X! X/ v1 B0 R
- geomline1.Geometry = line1;
$ m2 F1 x; P4 N7 G( @" d! t - geomline1.PointType = Sketch::ConstraintPointTypeNone;
. w- }! N- _7 z8 |2 n# }! s - geomline1.SplineDefiningPointIndex = 0;* E: c% d; C2 `# W4 C& ^! y
- sketch1->CreateVerticalConstraint(geomline1);: J# h# H% y$ s* ^) _2 w! {
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- Sketch::ConstraintGeometry geomline2;
! l5 b3 B- z5 i/ d( K/ K; @& C - geomline2.Geometry = line2; k% g& E/ J( J" m
- geomline2.PointType = Sketch::ConstraintPointTypeNone;' s9 O* Y4 o2 o
- geomline2.SplineDefiningPointIndex = 0;9 |# j: l# A: |, e
- sketch1->CreateHorizontalConstraint(geomline2);
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- Sketch::ConstraintGeometry geomline3;( S. y0 [8 H9 G2 ?; V; V
- geomline3.Geometry = line3;2 c& | K; c! u; D0 A* _
- geomline3.PointType = Sketch::ConstraintPointTypeNone;
7 v" H1 U( y6 i2 |, m - geomline3.SplineDefiningPointIndex = 0;7 T5 n8 q; w( ], O" x) u
- sketch1->CreateVerticalConstraint(geomline3);7 d- T7 e3 w' }( W0 [ e# x9 Z
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- Sketch::ConstraintGeometry geomline1_startPoint;
& R) y" r' q# r' z2 Y - geomline1_startPoint.Geometry = line1;0 U+ b3 V1 `& D7 r9 Y) L
- geomline1_startPoint.PointType = Sketch::ConstraintPointTypeStartVertex;
% i- X; A, v& I6 E7 s6 a - geomline1.SplineDefiningPointIndex = 0;8 E/ k$ Z8 a7 L! c
- Sketch::ConstraintGeometry geomline2_originPoint;
# w7 W0 R1 X5 ?% |, ^ - geomline2_originPoint.Geometry = originPoint;
- k& [; Z/ n2 r3 B0 ]+ E) y9 c# I - geomline2_originPoint.PointType = Sketch::ConstraintPointTypeNone;
/ @- @+ m g3 P2 n$ `" O3 { - geomline2_originPoint.SplineDefiningPointIndex = 0;& b5 l, I P7 l
- sketch1->CreateCoincidentConstraint(geomline1_startPoint,geomline2_originPoint);$ E$ r* L$ W3 W% @5 W
% j1 r2 e8 o z) |) j5 ?! {7 x- //4 add constraints (dimension)$ U% U# V; h' {/ {4 O3 s% x5 |! N/ I; L
/ E+ N* ~2 t( i& N1 W2 a- NXObject *nullNXObject(NULL);5 C9 i3 G* Y/ l3 h9 |) t* Q
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9 |+ t/ q- k8 L, `- stringstream s_height1,s_height2,s_length;, K$ c0 S1 D, }* t+ M: Z
- s_height1 <<height1;
4 L, `3 _9 x7 R3 l1 d8 Q - s_height2 <<height2;
2 j2 X( [. l j. u4 N c4 n2 Y' B$ y - s_length <<length;& T4 l- i0 m- l% q/ I* d
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- Expression *expression1,*expression2,*expression3;4 W+ R; u p( J2 x5 g
- expression1 = workPart->Expressions()->CreateSystemExpression(s_height1.str());# t" Y- w- A' X/ N
- expression2 = workPart->Expressions()->CreateSystemExpression(s_length.str());
. h8 g! Z/ a! ~2 H - expression3 = workPart->Expressions()->CreateSystemExpression(s_height2.str());% n" |; p& _( H2 [- x
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- // line1 dimension
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5 q' Y; V B. C- Sketch::DimensionGeometry dimLine1_startPoint;
0 {4 R8 G8 @: O5 ~+ P - dimLine1_startPoint.Geometry = line1;
0 l' _! j' B( l' b& V: N - dimLine1_startPoint.AssocType = Sketch::AssocTypeStartPoint;
. r) l& q/ Q# ?+ ^' V6 F" ] - dimLine1_startPoint.AssocValue = 0;) P2 w4 X" q' t! P; \
- dimLine1_startPoint.HelpPoint.X = 0.0;
/ a9 S' V0 j. W+ h: U - dimLine1_startPoint.HelpPoint.Y = 0.0;
( P9 l: z6 v2 S5 p: i9 T) J - dimLine1_startPoint.HelpPoint.Z = 0.0;
) u) F+ L: Z7 V1 h# p' q2 f - dimLine1_startPoint.View = nullNXObject;, A& _; t$ ^3 Q
" y# W' T% q9 U0 f" q$ ]- Sketch::DimensionGeometry dimLine1_endPoint;* g5 }# R$ I: I3 h, Y- t: @7 r
- dimLine1_endPoint.Geometry = line1;% Z# x5 S w z% ^# @$ k# }6 w5 ^
- dimLine1_endPoint.AssocType = Sketch::AssocTypeEndPoint;
2 _& p- q ^) ?& w" z( a/ A' J - dimLine1_endPoint.AssocValue = 0;. V' k5 n; z! E
- dimLine1_endPoint.HelpPoint.X = 0.0;4 {2 R. L# w; m' W5 a! g
- dimLine1_endPoint.HelpPoint.Y = 0.0;2 |- u% m1 \5 O: y$ Z$ ^7 i
- dimLine1_endPoint.HelpPoint.Z = 0.0;
7 G$ P4 L! K3 T- C. {- B, A2 I) l - dimLine1_endPoint.View = nullNXObject;, W- I% B! M, x5 x- O# k
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- Point3d dimOrigin1(-100, height1/2, 0.0);
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! r& R& G) o: X* P8 E" A4 ~- sketch1->CreateDimension(Sketch::ConstraintTypeParallelDim, dimLine1_startPoint, dimLine1_endPoint, dimOrigin1, expression1, Sketch::DimensionOptionCreateAsDriving);
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( n# m5 v4 f* U# B, d - // line2 dimension 7 x" _/ k' J* q1 P6 ]# j7 B
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- Sketch::DimensionGeometry dimLine2_startPoint;
O8 D9 f6 n# X - dimLine2_startPoint.Geometry = line2;
* L+ [. r- P' r5 K! F2 x1 k - dimLine2_startPoint.AssocType = Sketch::AssocTypeStartPoint;6 o" W6 T0 v* S8 { j$ J
- dimLine2_startPoint.AssocValue = 0;0 I$ e" F/ e, n
- dimLine2_startPoint.HelpPoint.X = 0.0;; `/ |& n' p' G2 n
- dimLine2_startPoint.HelpPoint.Y = 0.0;
$ H* V- c% F1 g/ f6 [/ w5 E6 P4 N - dimLine2_startPoint.HelpPoint.Z = 0.0;
6 \. p, V- I! R' [5 @ - dimLine2_startPoint.View = nullNXObject;3 f0 x; S% h( Q
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- Sketch::DimensionGeometry dimLine2_endPoint;
- Q w5 e4 {: Q- ~' e( O* F - dimLine2_endPoint.Geometry = line2;& [8 B* D. r: u {1 l% B1 x
- dimLine2_endPoint.AssocType = Sketch::AssocTypeEndPoint;$ Z2 b8 k0 o4 ~! q
- dimLine2_endPoint.AssocValue = 0;! `% @9 A1 N _" _
- dimLine2_endPoint.HelpPoint.X = 0.0;. C! C& p9 I8 Q4 O; Q" V
- dimLine2_endPoint.HelpPoint.Y = 0.0;
( d2 ?7 j7 f' K% A9 L# B! f. h - dimLine2_endPoint.HelpPoint.Z = 0.0;! Y; E2 t5 o- G5 |; l6 Y
- dimLine2_endPoint.View = nullNXObject;( L) y2 G6 }) s9 n7 U# F
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- Point3d dimOrigin2(length /2,100 + height1, 0.0);
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- sketch1->CreateDimension(Sketch::ConstraintTypeParallelDim, dimLine2_startPoint, dimLine2_endPoint, dimOrigin2, expression2, Sketch::DimensionOptionCreateAsDriving);- ]2 |% o* ?& D2 Q6 `5 A
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: L* M ~& Q: ~+ Q+ }& D O - // line3 dimension
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- Sketch::DimensionGeometry dimLine3_startPoint;5 d* W+ U# L/ e: N* R
- dimLine3_startPoint.Geometry = line3;; R. p- S0 z& A3 Q B. N# L# p
- dimLine3_startPoint.AssocType = Sketch::AssocTypeStartPoint;4 q2 Y+ S3 H( i! x; W$ J
- dimLine3_startPoint.AssocValue = 0;2 |; O: x8 D" D T
- dimLine3_startPoint.HelpPoint.X = 0.0;. W7 T F. r& ?& A; _% }* u
- dimLine3_startPoint.HelpPoint.Y = 0.0;% i3 ^% o! c$ w1 K$ A
- dimLine3_startPoint.HelpPoint.Z = 0.0;% [& z/ x7 Q' {4 Y$ g. T
- dimLine3_startPoint.View = nullNXObject;$ K, T Z4 j: r2 y) X
" w. Z* q/ ?, I! J" s- Sketch::DimensionGeometry dimLine3_endPoint;
/ ]1 n9 ~3 O0 Q3 ~+ _ - dimLine3_endPoint.Geometry = line3;4 V7 v. Z3 ^3 m2 M B7 a7 |; i+ Y8 l% @
- dimLine3_endPoint.AssocType = Sketch::AssocTypeEndPoint;
: x) G5 _! m6 `: o. }9 \ - dimLine3_endPoint.AssocValue = 0;8 ^/ }& ^0 w8 T3 P" r% c0 W
- dimLine3_endPoint.HelpPoint.X = 0.0;) ? Z! i+ c7 E: ~" r9 H& O
- dimLine3_endPoint.HelpPoint.Y = 0.0;" N7 P! E$ u$ x9 M' P$ O& G# y0 y
- dimLine3_endPoint.HelpPoint.Z = 0.0; M1 c& g! V, p' e
- dimLine3_endPoint.View = nullNXObject;
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. s0 t8 v2 \, ~6 }- Point3d dimOrigin3( 100 + length, height1-height2+ height2 /2 , 0.0);
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: ]- Y7 C2 |2 ~. C7 ^& l t- x - sketch1->CreateDimension(Sketch::ConstraintTypeParallelDim, dimLine3_startPoint, dimLine3_endPoint, dimOrigin3, expression3, Sketch::DimensionOptionCreateAsDriving);
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- //5 update & deactive
5 W# d4 Z# F4 @) K - sketch1->Update();" H. r- z" B+ d K
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- sketch1->Deactivate(Sketch::ViewReorientFalse,Sketch::UpdateLevelModel);
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- delete expression1;
$ {0 y3 d+ ]9 ~! J - delete expression2;
- A& C+ z5 D' `2 V6 L m) e - delete expression3;9 S$ w/ Z5 }- a1 g1 G
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老大，您的教程很给力哟，什么时候才能膜拜呢？？
