用NX Open C++画Studio Spline的访问冲突中断

p36288 · 发表于 2010-9-10 22:35

本帖最后由 p36288 于 2010-9-10 22:39 编辑

我想用NX Open C++编个简单的外部程序生成一条Studio Spline曲线，直接用操作记录稍微改了一下。程序没有报错，但是调试的时候在“studioSplineBuilder1->CommitFeature()”这句（代码倒数第九行）跳出来这个中断：“***.exe 中的 0x2031f7eb 处未处理的异常: 0xC0000005: 读取位置 0x00000000 时发生访问冲突”(Unhandled exception at 0x2031f7eb in test.exe: 0xC0000005: Access violation reading location 0x00000000.)。请大牛指教。
我尝试过生成直线或圆弧，都没有这个问题。
我的邮箱：p36288@gmail.com，用的是NX7.0，中文Visual Studio 2008，系统WinXP。下面是程序原文：

/* Include files */
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#if ! defined ( __hp9000s800 ) && ! defined ( __sgi ) && ! defined ( __sun )
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# include <strstream>
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# include <iostream>
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using std::ostrstream;6 J& o" \- X8 T2 P8 a
using std::endl;
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using std::ends;/ X) }/ M s1 ]( f# Z$ ^
using std::cerr; r4 R. j4 A) @) I( E) c
#else$ A" R' k8 G% I/ y8 @; {, X: J, h
# include <strstream.h>1 ?; l. P/ v' T
# include <iostream.h>, J0 q8 E3 o9 ]* @8 R; S
#endif" F: F' p C M/ y) ?
#include <uf.h>
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#include <ug_session.hxx>: l& e4 g& { T
#include <UG_exception.hxx>8 y) M3 v0 p7 i5 Y
#include <uf_defs.h>
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/*Your Code*/
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#include <NXOpen/NXException.hxx>
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#include <NXOpen/Session.hxx>
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#include <NXOpen/BasePart.hxx>
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#include <NXOpen/Builder.hxx>4 y8 d3 r5 K7 t t) n& Q
#include <NXOpen/Features_Feature.hxx>
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#include <NXOpen/Features_FeatureBuilder.hxx>* I5 W6 U. y' ~; t% `5 m5 l4 |" U1 k
#include <NXOpen/Features_FeatureCollection.hxx>
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#include <NXOpen/Features_GeometricConstraintData.hxx>+ a: e }7 j) E3 n' Y0 v( N
#include <NXOpen/Features_GeometricConstraintDataManager.hxx>
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#include <NXOpen/Features_StudioSplineBuilder.hxx>
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#include <NXOpen/Part.hxx>
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#include <NXOpen/PartCollection.hxx>8 I2 z. ~+ H+ y9 b0 _5 ^
#include <NXOpen/PartSaveStatus.hxx>
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#include <NXOpen/Point.hxx>* d2 v' d: h9 @' S, o# F( t! I8 m7 y
#include <NXOpen/PointCollection.hxx>
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#include <NXOpen/Preferences_PartModeling.hxx>1 c/ c( H6 \, i- @9 s
#include <NXOpen/Preferences_PartPreferences.hxx>. L$ ]: L* `! h N$ l" D
#include <NXOpen/Session.hxx>
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#include <NXOpen/Spline.hxx>/ E9 D7 A5 B! F5 e1 t) N* |
#include <NXOpen/Update.hxx>
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using namespace NXOpen;) a- T6 m( u% q* I9 p7 F
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/* Main routine */4 L8 z! x9 c: F- Y: V8 B$ m( i& [& k
extern void main( char argc, char *argv[] )% g. f) q( V: E/ R/ e
{
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Session *theSession = Session::GetSession();
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NXOpen::NXString partName = "NXcurve.prt";
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Part *workPart = theSession->;Parts()->NewDisplay(partName, NXOpen::Part::UnitsInches);4 R+ m: \4 M1 ?3 A, c
/*创建Studio Spline*/! g( l' @8 e, R" J1 {3 ~2 o4 a
Point3d coordinates1(-60.9672168874869, -85.3444953331698, -16.2564577575515);
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Point *point1;
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point1 = workPart->;Points()->CreatePoint(coordinates1);
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Point3d coordinates2(-36.7798197522759, -26.6915553863001, 28.8322080982988);
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Point *point2;
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point2 = workPart->;Points()->CreatePoint(coordinates2);
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Point3d coordinates3(-3.3110308509701, -13.9095206113823, -15.3362809033505);
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Point *point3;% w& ~6 e/ j9 q/ ~% d4 `
point3 = workPart->;Points()->CreatePoint(coordinates3); I O( e# h& u. P/ a
Point3d coordinates4(50.4956319822501, 34.6877235376336, -42.6348609113142);
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Point *point4;6 g1 n$ r& K! [/ B7 D. Y. v
point4 = workPart->;Points()->CreatePoint(coordinates4);
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Features::StudioSpline *nullFeatures_StudioSpline(NULL);
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Features::StudioSplineBuilder *studioSplineBuilder1;3 f: e# M% V, a8 U: `) p6 t% ]# L
studioSplineBuilder1 = workPart->Features()->CreateStudioSplineBuilder(nullFeatures_StudioSpline);$ N _ ]7 J: p' y
studioSplineBuilder1->SetInputCurveOption(Features::StudioSplineBuilder::CurveOptionRetain);! ]. ^; c; t* S9 @/ p# g% D9 C
studioSplineBuilder1->SetSplineMethod(Features::StudioSplineBuilder::MethodByPoles);) Q! F- r% w5 \
studioSplineBuilder1->SetDegree(3);
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studioSplineBuilder1->SetPeriodic(false);4 j" y5 m, j' e) N; K
std::vector<double> knots1(0);1 T9 i: M2 j% X
studioSplineBuilder1->SetKnots(knots1);: K, @& ^& ?6 X( K m) R3 o6 p6 G
std::vector<double> parameters1(0);( A" l$ B1 z* q: u
studioSplineBuilder1->SetParameters(parameters1); ~1 B- j1 y' d
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Features::GeometricConstraintData *geometricConstraintData1;; g( K0 p9 e4 [; K$ \; I0 r' f
geometricConstraintData1 = studioSplineBuilder1->ConstraintManager()->CreateGeometricConstraintData();4 @# x6 o* t, Q1 q
geometricConstraintData1->SetPoint(point1);
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geometricConstraintData1->SetAutomaticConstraintDirection(Features::GeometricConstraintData::ParameterDirectionIso);5 I. g: B3 V2 Y# }* Z
geometricConstraintData1->SetAutomaticConstraintType(Features::GeometricConstraintData::AutoConstraintTypeNone);( f7 s' W' m% o4 w; L
Direction *nullDirection(NULL);
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geometricConstraintData1->SetTangentDirection(nullDirection);6 l% h* _# U' D- J
Scalar *nullScalar(NULL);. w( a+ \+ `" K! ~
geometricConstraintData1->SetTangentMagnitude(nullScalar);
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Offset *nullOffset(NULL);
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geometricConstraintData1->SetCurvature(nullOffset);
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geometricConstraintData1->SetCurvatureDerivative(nullOffset);, O' e. y# L `6 R. J
geometricConstraintData1->SetHasSymmetricModelingConstraint(false);
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Features::GeometricConstraintData *geometricConstraintData2;
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geometricConstraintData2 = studioSplineBuilder1->ConstraintManager()->CreateGeometricConstraintData();; H: s; w2 e' D# S/ i
geometricConstraintData2->SetPoint(point2);; Y7 A0 B& H. d; Y
geometricConstraintData2->SetAutomaticConstraintDirection(Features::GeometricConstraintData::ParameterDirectionIso);
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geometricConstraintData2->SetAutomaticConstraintType(Features::GeometricConstraintData::AutoConstraintTypeNone);. t9 B) U8 d0 w3 l6 Q* G+ n
geometricConstraintData2->SetTangentDirection(nullDirection);
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geometricConstraintData2->SetTangentMagnitude(nullScalar);1 `' W+ @+ S2 `! B) ?" @. e
geometricConstraintData2->SetCurvature(nullOffset);' V' e' z9 X: Q
geometricConstraintData2->SetCurvatureDerivative(nullOffset);
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geometricConstraintData2->SetHasSymmetricModelingConstraint(false);& h9 F: Q4 ]0 Q2 ~ G2 Q1 {0 ~& Q
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Features::GeometricConstraintData *geometricConstraintData3;& t5 N+ t) {% D" R; z
geometricConstraintData3 = studioSplineBuilder1->ConstraintManager()->CreateGeometricConstraintData();
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geometricConstraintData3->SetPoint(point3);
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geometricConstraintData3->SetAutomaticConstraintDirection(Features::GeometricConstraintData::ParameterDirectionIso);3 d) S8 B+ ~ e& ^' q- N
geometricConstraintData3->SetAutomaticConstraintType(Features::GeometricConstraintData::AutoConstraintTypeNone);
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geometricConstraintData3->SetTangentDirection(nullDirection);7 w8 q- v7 {. m+ q
geometricConstraintData3->SetTangentMagnitude(nullScalar);
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geometricConstraintData3->SetCurvature(nullOffset);/ k7 s1 P+ o' r4 y M, d
geometricConstraintData3->SetCurvatureDerivative(nullOffset);! ^; L2 f# [& m- X7 u/ l, r
geometricConstraintData3->SetHasSymmetricModelingConstraint(false);
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Features::GeometricConstraintData *geometricConstraintData4;
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geometricConstraintData4 = studioSplineBuilder1->ConstraintManager()->CreateGeometricConstraintData();( U2 d: E2 ~5 v! d- t" X
geometricConstraintData4->SetPoint(point4);- ?2 d' d* [$ P
geometricConstraintData4->SetAutomaticConstraintDirection(Features::GeometricConstraintData::ParameterDirectionIso);
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geometricConstraintData4->SetAutomaticConstraintType(Features::GeometricConstraintData::AutoConstraintTypeNone);9 F! {! N( |2 D0 N( e" F
geometricConstraintData4->SetTangentDirection(nullDirection);' _ q8 {# \( b! m8 m! ^
geometricConstraintData4->SetTangentMagnitude(nullScalar);
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geometricConstraintData4->SetCurvature(nullOffset);8 k8 j P$ c0 Z8 h
geometricConstraintData4->SetCurvatureDerivative(nullOffset);9 O& d7 y9 L2 e0 I" |
geometricConstraintData4->SetHasSymmetricModelingConstraint(false);
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std::vector<Features::GeometricConstraintData *> constraints1(4);
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constraints1[0] = geometricConstraintData1;6 I& k# z- r( Z/ V9 L
constraints1[1] = geometricConstraintData2;, P q" J) x. B# |1 B
constraints1[2] = geometricConstraintData3;1 G5 t7 r" |. J( J- j0 w. Y9 K
constraints1[3] = geometricConstraintData4;
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studioSplineBuilder1->ConstraintManager()->SetContents(constraints1);
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Features::Feature *feature1;
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feature1 = studioSplineBuilder1->CommitFeature();
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Spline *spline1;
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spline1 = studioSplineBuilder1->Curve();
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studioSplineBuilder1->Destroy();. R8 a) S, F' y; t& z% p
/*Save*/" _3 \5 D, y! [6 T$ x) C5 @1 x
NXOpen::PartSaveStatus *partSaveStatus;
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workPart->Save(NXOpen::Part::SaveComponentsTrue, NXOpen::Part::CloseAfterSaveTrue, &partSaveStatus);* o' v8 C6 b# }! ], _) M
}

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