PLM之家-NX9.0 二次开发实例视频31 NXOpen C++创建草图基本特征

admin · 发表于 2014-2-19 20:30:21

请使用QQ关联注册PLM之家，学习更多关于内容，更多精彩原创视频供你学习！

您需要登录才可以下载或查看，没有账号？注册

x

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
内容：
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。
目的：
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。

NXOpen C++创建草图基本特征

31 NXOpen C++创建基本特征-草图的创建(1)项目介绍
31 NXOpen C++创建基本特征-草图的创建(2)UI设计
31 NXOpen C++创建基本特征-草图的创建(3)项目创建
31 NXOpen C++创建基本特征-草图的创建(4)草图特征创建
31 NXOpen C++创建基本特征-草图的创建(5)添加几何到草图
31 NXOpen C++创建基本特征-草图的创建(6)添加草图几何约束
31 NXOpen C++创建基本特征-草图的创建(7)添加草图尺寸约束
31 NXOpen C++创建基本特征-草图的创建(8)尺寸和UI关联6 M) V' L5 K* c# K# ~" w* ?

. V% ^! W6 N" a2 R; P2 T

) D- u0 j0 T9 [" @$ @

关键代码分享：

6 m! ~ u$ f2 [2 @1 G% x- D0 s* \
void lesson31_createSkeTCh::createIPSketch()0 u: Z- l& v# d* b
{
, Q( y: |& a) G$ n5 {
+ L- m' {: g% u) F- K' d
Sketch *nullSketch(NULL);
1 u: P. h" e0 ~
SketchInPlaceBuilder *sketchInPlaceBuilder1;1 Y! m* ?5 z3 t8 J& p! Z+ {
sketchInPlaceBuilder1 = workPart->Sketches()->CreateNewSketchInPlaceBuilder(nullSketch);5 g, {2 X9 o) v! j# b& G
sketchInPlaceBuilder1->SetPlaneOption(Sketch::PlaneOptionNewPlane);6 S1 ?" S. ]0 W& j) Z
: k; A" b. J' T H6 |# {
//sketchInPlaceBuilder1->Plane()->SetMethod(PlaneTypes::MethodTypeFixedZ);
. c1 Q3 {2 N1 }1 P% v4 v' `( l
; M2 s7 h# x/ O2 N
" P% r, l8 v& J3 y, ?- u5 M
// add preference. `# d8 [9 B ^, j8 Q/ Q
. I% J, R8 Y. p4 A) `# o- w
theSession->Preferences()->Sketch()->SetContinuousAutoDimensioning(false);. V% N6 Q/ Z( I! ]
3 F1 Y5 ~9 R& Z( o( s; b1 @
Drafting::PreferencesBuilder *preferencesBuilder1;
$ v; d$ k; c# n- ^- U$ u" Y, y D
preferencesBuilder1 = workPart->SettingsManager()->CreatePreferencesBuilder();, Z! m/ p5 A1 i1 @) K' [
preferencesBuilder1->AnnotationStyle()->DimensionStyle()->SetAngularDimensionValuePrecision(3);$ j) @4 r2 G/ w2 J: I0 ], V) K
preferencesBuilder1->AnnotationStyle()->DimensionStyle()->SetDimensionValuePrecision(3);
; Z$ i- E0 p( N0 i
preferencesBuilder1->Commit();0 q! a; v+ b7 m. j
x* g( r2 ^! L+ \* W+ Q* a: [
preferencesBuilder1->Destroy();
: o, N, | d7 t/ a" _
' Y7 ]1 J# g% i& S' {
7 B- M! P( I0 R3 K7 w& J' I
NXObject *nXObject1;
7 _, L# C; s/ N6 l' u: @1 Q8 m6 J
nXObject1 = sketchInPlaceBuilder1->Commit();& i! \. D& F/ t- i" {
; Y8 J7 m7 o; o; V8 V% i8 n4 \
Sketch *sketch1(dynamic_cast<Sketch *>(nXObject1));
( e$ }; a) s1 X' D# a0 @* B
Features::Feature *feature1;
8 Z- y" K2 o8 w+ c$ ~
feature1 = sketch1->Feature();* m, J- h& X6 k; }9 R
feature1->SetName("XY-Plane-Sketch");* f7 q4 W5 z' {% W& x3 U, x
/ c: v1 W; T, d
sketchInPlaceBuilder1->Destroy();
/ W: b" v0 U* l
6 e: E0 T' `& j8 \
//1 active sketch , G) _' W ], e; g$ |
, r7 C3 H* y) `7 @1 t0 {3 ~: D
sketch1->Activate(Sketch::ViewReorientFalse);2 P* P, D/ ]+ `8 W* m! k
, U, b$ O2 Z w; g6 t* a
double height1 = this->expressionHeight1->GetProperties()->GetDouble("Value");
9 o! r( h) Y7 H
double height2 = this->expressionHeight2->GetProperties()->GetDouble("Value"); @; Y) \7 n0 W8 D w R" F' _1 C
double length = this->expressionLength->GetProperties()->GetDouble("Value");: n( z8 E" t$ J. A
// 2.1 create geometry
% Z: I- i4 D" [1 N& ]
6 ?" C9 P9 }3 C
Point3d startPoint1(0.0, 0.0, 0.0); V# G! J; @; y9 E$ @ n
Point3d endPoint1(0, height1, 0.0);$ e4 i$ e1 D" y9 f% v$ z! Q5 k
Point3d endPoint2(length, height1, 0.0);" L' U5 w7 I3 h
Point3d endPoint3(length, height1-height2, 0.0);) ^& S$ x4 t3 M; U/ `$ g
Point3d origin = sketch1->Origin();' U/ j& e2 b6 |/ m
Point *originPoint = workPart->Points()->CreatePoint(origin);! u& P$ C4 p9 D* O8 O
! G' J( l5 \% G$ N
Line *line1,*line2,*line3,*line4;
$ S" ^) X o5 L0 ^& O
line1 = workPart->Curves()->CreateLine(startPoint1, endPoint1);
@8 b& w: b3 T0 Q
line2 = workPart->Curves()->CreateLine(endPoint1, endPoint2);
8 V! E8 _+ M; Q+ L' F4 {. X
line3 = workPart->Curves()->CreateLine(endPoint2, endPoint3);1 Q+ A. v* u+ Z" b6 W
line4 = workPart->Curves()->CreateLine(endPoint3, startPoint1);
8 v8 e7 J1 z9 T3 V
// 2.2 add geometry
5 X* O+ @' I1 w3 y
1 a2 c4 i# q( |5 `
sketch1->AddGeometry(line1,Sketch::InferConstraintsOptionInferCoincidentConstraints);# W% j' l M4 {6 q# R( ]# j! T5 x
sketch1->AddGeometry(line2,Sketch::InferConstraintsOptionInferCoincidentConstraints);( c3 ?: C1 b4 `9 }" W
sketch1->AddGeometry(line3,Sketch::InferConstraintsOptionInferCoincidentConstraints);
$ W, P$ g- K& K, \( X# n1 }# n
sketch1->AddGeometry(line4,Sketch::InferConstraintsOptionInferCoincidentConstraints);
2 Y- T/ q/ ~9 k; ~+ K9 _: @: r7 }
/ T, N7 ~2 b3 a) j, }; C' V* f
//3 add constraints ( gemo)( x1 D: \# c, b/ r& C3 O
( W( W2 u, F- J# v0 g5 \
Sketch::ConstraintGeometry geomline1;, ~2 h; g$ `3 D. H' F& \
geomline1.Geometry = line1;1 ?: D. P+ F( R0 H
geomline1.PointType = Sketch::ConstraintPointTypeNone;
( L* E. G3 A/ f" W1 m" Q6 N5 F
geomline1.SplineDefiningPointIndex = 0;5 K* }- ~* N9 [* ]- O
sketch1->CreateVerticalConstraint(geomline1);% I+ T9 p3 D6 k0 b. y9 R d$ [
0 r3 Q$ p( N, p: `$ T$ }3 u7 R( M3 {
Sketch::ConstraintGeometry geomline2;( A3 o& q3 s7 j% q4 m( j# E0 ~5 W
geomline2.Geometry = line2;# V0 X# F7 I2 Q8 @5 h" J* ]
geomline2.PointType = Sketch::ConstraintPointTypeNone;
, i" F! a! g' i+ o2 D; O' x
geomline2.SplineDefiningPointIndex = 0;' B9 i5 Q$ p% n. `6 H! w% m2 c
sketch1->CreateHorizontalConstraint(geomline2);) m* K0 ^0 c6 I7 F3 A
0 e+ h% W; Y- ^) w; |) C
Sketch::ConstraintGeometry geomline3;
9 w4 j+ T! x2 {& F
geomline3.Geometry = line3;6 c1 k' b% w j, d2 ] u/ b
geomline3.PointType = Sketch::ConstraintPointTypeNone;9 s, _9 \6 `) o5 J6 y. ~9 L. @
geomline3.SplineDefiningPointIndex = 0;4 d( V+ t' A) g" f& O9 v$ c" _, N1 H
sketch1->CreateVerticalConstraint(geomline3);
1 L/ Z% [# p! V* C. q1 g" m9 q
+ [4 p8 o4 Z H& u. W/ c
Sketch::ConstraintGeometry geomline1_startPoint;
+ b' w0 \. n4 y6 v9 n) Q
geomline1_startPoint.Geometry = line1;
6 T9 D2 O; K7 z f+ i, A7 ]- P
geomline1_startPoint.PointType = Sketch::ConstraintPointTypeStartVertex;3 a; g' t) y8 N1 s4 [; X3 W9 r
geomline1.SplineDefiningPointIndex = 0;
( z# e8 M# g: B$ {" d
Sketch::ConstraintGeometry geomline2_originPoint;
, g+ W9 {$ C- T! V: f' i Q @8 Y
geomline2_originPoint.Geometry = originPoint;
5 j# c" n( p6 I/ j4 h, w$ d y
geomline2_originPoint.PointType = Sketch::ConstraintPointTypeNone;8 p9 s' z. `) h5 t0 H1 X+ O. j) `
geomline2_originPoint.SplineDefiningPointIndex = 0;. H7 ?' i# O" G. Q0 t( r1 d
sketch1->CreateCoincidentConstraint(geomline1_startPoint,geomline2_originPoint);2 W; R9 s. M( [. c
. M5 A4 ?0 R7 h
//4 add constraints (dimension)
* C9 W1 D* T; Z' U
* }; \( T) k, t% n: E) K
NXObject *nullNXObject(NULL);
& Y* ?0 J- F. t
( d" j4 i+ X$ d: o
1 e4 I% G! p; _. Y
stringstream s_height1,s_height2,s_length;0 F: |. Y5 q5 O: i
s_height1 <<height1;
( _# e1 a8 O5 B: N8 i" T1 p
s_height2 <<height2;
8 @/ m. c( `% r0 {
s_length <<length;/ `3 j& W! a6 \$ V, W, a/ K0 r
9 \) n' }! h* l# M0 z3 [7 ]2 E+ r9 o
Expression *expression1,*expression2,*expression3;
9 [6 V. A' V9 F$ n: P/ p
expression1 = workPart->Expressions()->CreateSystemExpression(s_height1.str());3 k! o% ]; M# H: h: ~/ u( _" w
expression2 = workPart->Expressions()->CreateSystemExpression(s_length.str());- \- I5 R5 p1 F( N" R/ y% X
expression3 = workPart->Expressions()->CreateSystemExpression(s_height2.str());8 k! V' q8 x. _
' q2 @( ^! d. M8 C2 }
// line1 dimension 9 e8 C: K7 b. D" x
% ~) q ^, q/ z0 {/ ~8 u
Sketch::DimensionGeometry dimLine1_startPoint;4 w1 \% H! s& y3 ~. a; E
dimLine1_startPoint.Geometry = line1;: S: y- C- [! _
dimLine1_startPoint.AssocType = Sketch::AssocTypeStartPoint;8 U1 W% r9 Y( C. s% S8 J' U- i
dimLine1_startPoint.AssocValue = 0;! H/ A9 H) a- [6 U
dimLine1_startPoint.HelpPoint.X = 0.0;
- ?+ ]8 G0 q* v+ Y. \; z5 S% Y
dimLine1_startPoint.HelpPoint.Y = 0.0;
9 h/ c I+ i9 r3 X5 T
dimLine1_startPoint.HelpPoint.Z = 0.0;
/ ^1 i; P. @& v- |0 @' E$ Q
dimLine1_startPoint.View = nullNXObject;3 t% k, k+ O& p- X s
- {9 Q$ U" R( B* ?( J* j) N
Sketch::DimensionGeometry dimLine1_endPoint;
6 P- l# n% M, ]! X6 u# A' {( Q/ C7 ?
dimLine1_endPoint.Geometry = line1;
- o$ `* r0 T( a( D% x
dimLine1_endPoint.AssocType = Sketch::AssocTypeEndPoint;
S+ t, v7 k$ d: P
dimLine1_endPoint.AssocValue = 0;
: }* k( v) E+ k" F5 {# \
dimLine1_endPoint.HelpPoint.X = 0.0;$ Y$ g, Z5 W* R9 Q |% @# j
dimLine1_endPoint.HelpPoint.Y = 0.0;
4 i" }6 V# \3 N0 g
dimLine1_endPoint.HelpPoint.Z = 0.0;9 [; ]3 ]6 Z6 X7 F- D- q! x# f; i
dimLine1_endPoint.View = nullNXObject;, K- ]2 ^, M' z) Y7 |& E# F
. m/ {# p. G; W$ W8 i% Q+ `
Point3d dimOrigin1(-100, height1/2, 0.0);+ g: y7 }$ b8 D5 I( A# I$ L
% E8 i8 R K2 c
sketch1->CreateDimension(Sketch::ConstraintTypeParallelDim, dimLine1_startPoint, dimLine1_endPoint, dimOrigin1, expression1, Sketch::DimensionOptionCreateAsDriving);
. [* k# }. ]4 M) V$ z5 b, \% a
5 d o+ d6 B# I$ n! j/ ^6 D4 N
1 `' r7 F8 U; T) n
9 g. ^' f5 T' R- D1 b. y
// line2 dimension
( T$ d7 c5 s' z0 t" B' K
, j5 b+ n! Y1 |- f) {
Sketch::DimensionGeometry dimLine2_startPoint;8 f& L; S* W0 n4 d& u
dimLine2_startPoint.Geometry = line2;8 n5 ]6 k5 x# t' J6 ~
dimLine2_startPoint.AssocType = Sketch::AssocTypeStartPoint;( o0 e8 c6 f+ S3 L
dimLine2_startPoint.AssocValue = 0;! g& K* j4 O; }5 {! e4 C c3 P
dimLine2_startPoint.HelpPoint.X = 0.0;
) Z: n. T. ~+ r7 N9 u4 ?. p- O4 r
dimLine2_startPoint.HelpPoint.Y = 0.0;
+ e# X5 Y, V0 R3 y. ^: w. l! M- S6 B
dimLine2_startPoint.HelpPoint.Z = 0.0;) E' r3 q, W2 v
dimLine2_startPoint.View = nullNXObject;6 j9 D6 j/ I/ i, p
, s5 t9 V5 ~, @4 ~9 d" Z
Sketch::DimensionGeometry dimLine2_endPoint;( @9 q8 \7 y+ Y3 p! }. u
dimLine2_endPoint.Geometry = line2;# g: r S1 ~+ L3 B
dimLine2_endPoint.AssocType = Sketch::AssocTypeEndPoint;: E# `7 p$ m) T* V
dimLine2_endPoint.AssocValue = 0;
3 r4 g3 b. y: ?
dimLine2_endPoint.HelpPoint.X = 0.0;
) K/ M6 t, w [, E% k( g
dimLine2_endPoint.HelpPoint.Y = 0.0;
- D! m! Y- Z) G" L2 W: _
dimLine2_endPoint.HelpPoint.Z = 0.0;* o8 |. P, c$ }! @
dimLine2_endPoint.View = nullNXObject;6 q0 o- B- ^: e$ }
' W, \- k9 |$ ?4 U% ~) ^
Point3d dimOrigin2(length /2,100 + height1, 0.0);
* @3 I. T6 T! t* k- o$ }
1 P0 E% A% S/ g N8 n* l: R' g
sketch1->CreateDimension(Sketch::ConstraintTypeParallelDim, dimLine2_startPoint, dimLine2_endPoint, dimOrigin2, expression2, Sketch::DimensionOptionCreateAsDriving);
; y' Q: E& q9 s$ A2 j# V$ a
3 B- H+ T* ]. H3 d3 [6 K
) m. S2 B5 H2 M0 z; R
) q2 x% N! Q. g s$ A' d+ A
// line3 dimension , v7 z6 A0 S+ ]
# T4 W" N a8 I' C, N, l- }
Sketch::DimensionGeometry dimLine3_startPoint;
6 m' N) U: r7 N2 l9 h0 h
dimLine3_startPoint.Geometry = line3;
) u ^3 P' D) j; Q& G5 `8 O7 V& ^
dimLine3_startPoint.AssocType = Sketch::AssocTypeStartPoint;9 P) l* p5 W& K" O1 u
dimLine3_startPoint.AssocValue = 0;
. I4 w5 o7 I6 y/ d9 ]
dimLine3_startPoint.HelpPoint.X = 0.0;, V& M8 O. F0 R; _+ s
dimLine3_startPoint.HelpPoint.Y = 0.0;, P& Z& ?% n2 u0 h# @) o+ D8 i
dimLine3_startPoint.HelpPoint.Z = 0.0;- S# r9 E. Q5 y/ w
dimLine3_startPoint.View = nullNXObject;
' ]; d" J$ M/ q
! l2 i y" A: e3 `
Sketch::DimensionGeometry dimLine3_endPoint;
' ]' H/ ~2 ~: o9 E; U, y3 e
dimLine3_endPoint.Geometry = line3;* H* H6 x; d0 y5 O; X
dimLine3_endPoint.AssocType = Sketch::AssocTypeEndPoint;
2 p5 z; w5 C" s3 G7 Y! `# ^
dimLine3_endPoint.AssocValue = 0;
) ~1 [; J+ s, w _4 i4 Y
dimLine3_endPoint.HelpPoint.X = 0.0;5 Z! F2 y7 J! e: G5 n7 B3 j; l
dimLine3_endPoint.HelpPoint.Y = 0.0;
' o" ~& n) v! [& s; ]0 T
dimLine3_endPoint.HelpPoint.Z = 0.0;5 `" z" g& ?( o. H6 u( l7 u/ l
dimLine3_endPoint.View = nullNXObject;: m2 a+ D: _. d
9 j! Y& N( Z' {; C7 E
Point3d dimOrigin3( 100 + length, height1-height2+ height2 /2 , 0.0);
6 z0 ~, W7 _( M5 `& ]7 M& Q5 q
2 d2 j- {( P# U! X3 ~) v
sketch1->CreateDimension(Sketch::ConstraintTypeParallelDim, dimLine3_startPoint, dimLine3_endPoint, dimOrigin3, expression3, Sketch::DimensionOptionCreateAsDriving);
# P* Z9 C, n J" G4 l6 ~
' o; b( y2 z1 M4 Y# _! g1 L
4 N6 B. X3 i; m
W M# I, e& F. W% J
//5 update & deactive# R. D: }3 K0 q
sketch1->Update();+ }4 I+ k/ s) N9 D6 h8 ?0 f- h. f
2 t) @6 {( u$ U: z( B2 A [
sketch1->Deactivate(Sketch::ViewReorientFalse,Sketch::UpdateLevelModel);
& f' _9 O- C2 c
U) G. d( R* z B, l3 S
delete expression1;
5 [3 e' O u2 [
delete expression2;' N$ {; G+ \/ F/ N, Z3 D% n- r( K5 @! V
delete expression3;) R" d+ O, W8 [) p% i' \
3 W( d9 Z4 n. k- U" i9 L
}/ x& ?5 j S& x- D/ r3 t