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 */7 F. Q" f8 |4 I! l z
#if ! defined ( __hp9000s800 ) && ! defined ( __sgi ) && ! defined ( __sun )1 ?. w t" A' Y1 O" K+ d. O
# include <strstream>
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# include <iostream>
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using std::ostrstream; T v% i, G' y: @
using std::endl; 2 B. |, B* q, l- Y: }
using std::ends;+ A2 |9 w. n, I9 D6 O# U$ Z2 C! Z7 q
using std::cerr;3 l5 a7 F6 x$ s4 u
#else4 S+ R; u% T/ ^3 L7 q1 [6 q, f- a1 o
# include <strstream.h>
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# include <iostream.h>& h* B9 G+ M d! x% v6 ]' P
#endif4 S6 `( K7 S" b6 Q
#include <uf.h>: f3 k: m' s$ o- z7 P4 O
#include <ug_session.hxx>' k M* Z4 E+ H+ f: U% u6 L- y
#include <UG_exception.hxx>
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#include <uf_defs.h>( A: f& Z& M) J5 p
/*Your Code*/
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#include <NXOpen/NXException.hxx>* D9 K k7 l2 L
#include <NXOpen/Session.hxx>
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#include <NXOpen/BasePart.hxx>1 r- S5 x( I6 H; q& x2 ?( A
#include <NXOpen/Builder.hxx>
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#include <NXOpen/Features_Feature.hxx>7 L- S) M+ p$ |$ ?8 ?' D
#include <NXOpen/Features_FeatureBuilder.hxx>
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#include <NXOpen/Features_FeatureCollection.hxx>
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#include <NXOpen/Features_GeometricConstraintData.hxx>
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#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>9 B+ {, N; n' h: \* X: Z6 A* J
#include <NXOpen/PartSaveStatus.hxx>
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#include <NXOpen/Point.hxx>
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#include <NXOpen/PointCollection.hxx>
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#include <NXOpen/Preferences_PartModeling.hxx>$ F+ T8 D- P# T4 g6 Y# D
#include <NXOpen/Preferences_PartPreferences.hxx>
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#include <NXOpen/Session.hxx>
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#include <NXOpen/Spline.hxx>9 y0 \3 O* U, Q- W, i; b2 F
#include <NXOpen/Update.hxx>
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using namespace NXOpen;6 S# K6 s) q/ \
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/* Main routine */
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extern void main( char argc, char *argv[] )
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Session *theSession = Session::GetSession();: a: X4 a$ o' H) Q" q2 b) Y- a
NXOpen::NXString partName = "NXcurve.prt";& e6 L2 y8 `, d# N( m: D7 J9 S
Part *workPart = theSession->;Parts()->NewDisplay(partName, NXOpen::Part::UnitsInches);3 U" j5 J# Y9 V( f; N! j
/*创建Studio Spline*/
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Point3d coordinates1(-60.9672168874869, -85.3444953331698, -16.2564577575515);
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Point *point1;1 K( [/ h+ X: W9 a8 Q2 N
point1 = workPart->;Points()->CreatePoint(coordinates1);2 W, B% ^# k* m' z" O' U- u) E4 z
Point3d coordinates2(-36.7798197522759, -26.6915553863001, 28.8322080982988);
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Point *point2;
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point2 = workPart->;Points()->CreatePoint(coordinates2);; M+ e* Z+ Y Y. L: z! A. n3 W: y$ B
Point3d coordinates3(-3.3110308509701, -13.9095206113823, -15.3362809033505);
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Point *point3;
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point3 = workPart->;Points()->CreatePoint(coordinates3);
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Point3d coordinates4(50.4956319822501, 34.6877235376336, -42.6348609113142);
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Point *point4; k4 g; J0 _; P$ {; |; C4 _5 E
point4 = workPart->;Points()->CreatePoint(coordinates4);, P8 L+ o8 C5 f9 @
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Features::StudioSpline *nullFeatures_StudioSpline(NULL);
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Features::StudioSplineBuilder *studioSplineBuilder1;
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studioSplineBuilder1 = workPart->Features()->CreateStudioSplineBuilder(nullFeatures_StudioSpline);& Z; E/ I5 H1 s( A
studioSplineBuilder1->SetInputCurveOption(Features::StudioSplineBuilder::CurveOptionRetain);
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studioSplineBuilder1->SetSplineMethod(Features::StudioSplineBuilder::MethodByPoles);6 r2 p$ z: b% W. Q' H
studioSplineBuilder1->SetDegree(3);# P3 b. H/ h$ Z7 D: b
studioSplineBuilder1->SetPeriodic(false);
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std::vector<double> knots1(0);
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studioSplineBuilder1->SetKnots(knots1);
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std::vector<double> parameters1(0);' X! |% O) \$ z) M3 i; o3 W3 K7 P3 }- M
studioSplineBuilder1->SetParameters(parameters1);
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Features::GeometricConstraintData *geometricConstraintData1;
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geometricConstraintData1 = studioSplineBuilder1->ConstraintManager()->CreateGeometricConstraintData();
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geometricConstraintData1->SetPoint(point1);4 S: A( U6 o9 @0 s; S
geometricConstraintData1->SetAutomaticConstraintDirection(Features::GeometricConstraintData::ParameterDirectionIso);
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geometricConstraintData1->SetAutomaticConstraintType(Features::GeometricConstraintData::AutoConstraintTypeNone);+ x& P! }% O$ C6 x* M5 v
Direction *nullDirection(NULL);
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geometricConstraintData1->SetTangentDirection(nullDirection);& w# r$ `" w) I
Scalar *nullScalar(NULL);
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geometricConstraintData1->SetTangentMagnitude(nullScalar);8 m$ |3 ?3 o/ E& w* t" {, C3 b
Offset *nullOffset(NULL);
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geometricConstraintData1->SetCurvature(nullOffset);
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geometricConstraintData1->SetCurvatureDerivative(nullOffset);2 f2 O" E! \0 ^7 z: W
geometricConstraintData1->SetHasSymmetricModelingConstraint(false);
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Features::GeometricConstraintData *geometricConstraintData2;
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geometricConstraintData2 = studioSplineBuilder1->ConstraintManager()->CreateGeometricConstraintData();7 M: d2 V7 P3 Z# i6 u1 @
geometricConstraintData2->SetPoint(point2);
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geometricConstraintData2->SetAutomaticConstraintDirection(Features::GeometricConstraintData::ParameterDirectionIso);) B; G% F9 |0 x1 \: t' T4 \
geometricConstraintData2->SetAutomaticConstraintType(Features::GeometricConstraintData::AutoConstraintTypeNone);
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geometricConstraintData2->SetTangentDirection(nullDirection);
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geometricConstraintData2->SetTangentMagnitude(nullScalar);8 H) T, X; A9 F2 B% j5 ~# z
geometricConstraintData2->SetCurvature(nullOffset); H6 X! S2 l Z0 `; n' l8 Z5 \
geometricConstraintData2->SetCurvatureDerivative(nullOffset);
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geometricConstraintData2->SetHasSymmetricModelingConstraint(false);
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Features::GeometricConstraintData *geometricConstraintData3;, ^+ b2 k+ m; b* r& d# E
geometricConstraintData3 = studioSplineBuilder1->ConstraintManager()->CreateGeometricConstraintData();
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geometricConstraintData3->SetPoint(point3);
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geometricConstraintData3->SetAutomaticConstraintDirection(Features::GeometricConstraintData::ParameterDirectionIso);
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geometricConstraintData3->SetAutomaticConstraintType(Features::GeometricConstraintData::AutoConstraintTypeNone);
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geometricConstraintData3->SetTangentDirection(nullDirection);
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geometricConstraintData3->SetTangentMagnitude(nullScalar);
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geometricConstraintData3->SetCurvature(nullOffset);5 o6 G" S- ^2 k- @; `% u
geometricConstraintData3->SetCurvatureDerivative(nullOffset);1 E ]* K" b) [2 o9 u3 q
geometricConstraintData3->SetHasSymmetricModelingConstraint(false);
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Features::GeometricConstraintData *geometricConstraintData4;) Z1 f$ @3 \7 p
geometricConstraintData4 = studioSplineBuilder1->ConstraintManager()->CreateGeometricConstraintData();
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geometricConstraintData4->SetPoint(point4);2 X: f5 z; p+ y5 M9 _+ H
geometricConstraintData4->SetAutomaticConstraintDirection(Features::GeometricConstraintData::ParameterDirectionIso);
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geometricConstraintData4->SetAutomaticConstraintType(Features::GeometricConstraintData::AutoConstraintTypeNone);0 X+ c* C; o& x1 o: G
geometricConstraintData4->SetTangentDirection(nullDirection);# W6 q( V6 H' e
geometricConstraintData4->SetTangentMagnitude(nullScalar);. }5 S8 J( T+ M6 L% d
geometricConstraintData4->SetCurvature(nullOffset);
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geometricConstraintData4->SetCurvatureDerivative(nullOffset);* k2 O+ z9 Z* ` d9 N z
geometricConstraintData4->SetHasSymmetricModelingConstraint(false);
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std::vector<Features::GeometricConstraintData *> constraints1(4);
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constraints1[0] = geometricConstraintData1;
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constraints1[1] = geometricConstraintData2;& M: A9 H4 h# r$ _; J& q
constraints1[2] = geometricConstraintData3;
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constraints1[3] = geometricConstraintData4;4 D+ _* ]$ B5 ]$ \) O
studioSplineBuilder1->ConstraintManager()->SetContents(constraints1);
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Features::Feature *feature1;! p6 |3 r: X7 T+ L
feature1 = studioSplineBuilder1->CommitFeature();) Y" k6 Q, \5 V$ } Q4 q! o! v
Spline *spline1;( L6 S2 C) n, d5 r5 f. V
spline1 = studioSplineBuilder1->Curve();! x3 |2 \7 t/ J/ N: }
studioSplineBuilder1->Destroy();0 _ V9 N9 U$ U% R2 b
/*Save*/, n6 [) |% m4 R( {) T
NXOpen::PartSaveStatus *partSaveStatus;
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workPart->Save(NXOpen::Part::SaveComponentsTrue, NXOpen::Part::CloseAfterSaveTrue, &partSaveStatus);+ u' y* c/ B0 K8 b0 n6 L
}

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[疑难] 用NX Open C++画Studio Spline的访问冲突中断

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