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 )- u6 x, F9 _+ l) l
# include <strstream>
# a/ n* N5 s) v9 D: O
# include <iostream>
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using std::ostrstream;; n& N- B4 d. `( D2 ^" _/ g# }, ^
using std::endl;
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using std::ends;
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using std::cerr;% B0 s2 `: l2 f5 i7 C% }9 l$ L
#else" a3 G" T& s5 j0 J6 }
# include <strstream.h>) [, T' M4 C! H0 ~& L& @' u8 d/ N/ i
# include <iostream.h>+ A6 e3 ?4 a) n \8 V/ x+ p- z: Q
#endif+ w/ |- e! F2 X( F% a
#include <uf.h>
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#include <ug_session.hxx>; |3 h& \. N+ [" H, S! C
#include <UG_exception.hxx>
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#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>9 {! ~$ t4 m6 b
#include <NXOpen/Features_Feature.hxx>+ F5 G8 X) y2 C2 s9 [4 n1 ?9 n1 y
#include <NXOpen/Features_FeatureBuilder.hxx>
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#include <NXOpen/Features_FeatureCollection.hxx>+ D) |8 }3 ]% ^' v" o+ S
#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>" F, N3 S# k0 r4 b6 M
#include <NXOpen/PartCollection.hxx>
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#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>
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#include <NXOpen/Preferences_PartPreferences.hxx>
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#include <NXOpen/Session.hxx>" j) S( z: v/ U# B0 J* F8 @
#include <NXOpen/Spline.hxx>& U4 \4 i9 A! E4 C1 U
#include <NXOpen/Update.hxx>
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using namespace NXOpen;( ^/ g) m l0 X% p6 w! o
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/* Main routine */3 V, {' N5 z: u4 _6 F4 H0 Y
extern void main( char argc, char *argv[] )
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Session *theSession = Session::GetSession();9 {3 e6 U# v! l8 J w9 @: Y+ G; W
NXOpen::NXString partName = "NXcurve.prt";
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Part *workPart = theSession->;Parts()->NewDisplay(partName, NXOpen::Part::UnitsInches);1 f2 v' y7 |/ h) \% E
/*创建Studio Spline*/5 A; V# {0 y; g" q/ g8 l1 m# t
Point3d coordinates1(-60.9672168874869, -85.3444953331698, -16.2564577575515);
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Point *point1;
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point1 = workPart->;Points()->CreatePoint(coordinates1); `$ {: v0 r. G k0 L3 O2 }; k8 j
Point3d coordinates2(-36.7798197522759, -26.6915553863001, 28.8322080982988);
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Point *point2;
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point2 = workPart->;Points()->CreatePoint(coordinates2);" R' Y8 O' H7 t+ [
Point3d coordinates3(-3.3110308509701, -13.9095206113823, -15.3362809033505);0 O4 i$ s B% W, `0 E
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;
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point4 = workPart->;Points()->CreatePoint(coordinates4);9 d& P, ]3 j$ R: Y: ^2 e1 }# L5 `7 m B
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Features::StudioSpline *nullFeatures_StudioSpline(NULL);
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Features::StudioSplineBuilder *studioSplineBuilder1;) y1 e$ a2 K9 i3 ?7 X7 ^
studioSplineBuilder1 = workPart->Features()->CreateStudioSplineBuilder(nullFeatures_StudioSpline);
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studioSplineBuilder1->SetInputCurveOption(Features::StudioSplineBuilder::CurveOptionRetain);
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studioSplineBuilder1->SetSplineMethod(Features::StudioSplineBuilder::MethodByPoles);
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studioSplineBuilder1->SetDegree(3);
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studioSplineBuilder1->SetPeriodic(false);; c# S. ?2 `( m* V7 x
std::vector<double> knots1(0);
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studioSplineBuilder1->SetKnots(knots1);0 ^/ X. {7 i R
std::vector<double> parameters1(0);; L3 J$ {5 m4 H1 U/ i
studioSplineBuilder1->SetParameters(parameters1);# A" B4 V- A- z: {3 m. Z
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Features::GeometricConstraintData *geometricConstraintData1;
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geometricConstraintData1 = studioSplineBuilder1->ConstraintManager()->CreateGeometricConstraintData();. v' B4 E1 F6 j+ W/ y8 ~
geometricConstraintData1->SetPoint(point1);
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geometricConstraintData1->SetAutomaticConstraintDirection(Features::GeometricConstraintData::ParameterDirectionIso);& W+ _; l& h1 y9 J: W+ r
geometricConstraintData1->SetAutomaticConstraintType(Features::GeometricConstraintData::AutoConstraintTypeNone);7 N. r8 i3 S8 k. ~
Direction *nullDirection(NULL);
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geometricConstraintData1->SetTangentDirection(nullDirection);
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Scalar *nullScalar(NULL);
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geometricConstraintData1->SetTangentMagnitude(nullScalar);
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Offset *nullOffset(NULL);! e" f7 y5 J! t8 i+ _* @
geometricConstraintData1->SetCurvature(nullOffset);
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geometricConstraintData1->SetCurvatureDerivative(nullOffset);" c- k X& o; H+ \
geometricConstraintData1->SetHasSymmetricModelingConstraint(false);
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Features::GeometricConstraintData *geometricConstraintData2;0 V' V+ H2 ]7 D7 x" Z. g6 X# f5 y
geometricConstraintData2 = studioSplineBuilder1->ConstraintManager()->CreateGeometricConstraintData();
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geometricConstraintData2->SetPoint(point2);
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geometricConstraintData2->SetAutomaticConstraintDirection(Features::GeometricConstraintData::ParameterDirectionIso);3 N$ P2 ]& o3 T/ M
geometricConstraintData2->SetAutomaticConstraintType(Features::GeometricConstraintData::AutoConstraintTypeNone);0 d* x: R) N# K2 O! y
geometricConstraintData2->SetTangentDirection(nullDirection);
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geometricConstraintData2->SetTangentMagnitude(nullScalar);
geometricConstraintData2->SetCurvature(nullOffset);
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geometricConstraintData2->SetCurvatureDerivative(nullOffset);
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geometricConstraintData2->SetHasSymmetricModelingConstraint(false);/ m) u. h. p: u. o& s) R4 B: u
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Features::GeometricConstraintData *geometricConstraintData3;
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geometricConstraintData3 = studioSplineBuilder1->ConstraintManager()->CreateGeometricConstraintData();6 f( q7 _8 P( E3 E: Q! _
geometricConstraintData3->SetPoint(point3);2 R b3 O' ^, V
geometricConstraintData3->SetAutomaticConstraintDirection(Features::GeometricConstraintData::ParameterDirectionIso);
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geometricConstraintData3->SetAutomaticConstraintType(Features::GeometricConstraintData::AutoConstraintTypeNone);
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geometricConstraintData3->SetTangentDirection(nullDirection);5 B, K& w. E ?
geometricConstraintData3->SetTangentMagnitude(nullScalar);
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geometricConstraintData3->SetCurvature(nullOffset);
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geometricConstraintData3->SetCurvatureDerivative(nullOffset);( Z1 t9 J4 Y$ u7 B
geometricConstraintData3->SetHasSymmetricModelingConstraint(false);
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Features::GeometricConstraintData *geometricConstraintData4;0 C$ S3 H: v; J, p0 z! Q
geometricConstraintData4 = studioSplineBuilder1->ConstraintManager()->CreateGeometricConstraintData();
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geometricConstraintData4->SetPoint(point4);0 V& e2 o9 Y" T8 v
geometricConstraintData4->SetAutomaticConstraintDirection(Features::GeometricConstraintData::ParameterDirectionIso);) z: u( ~, M! f+ {# ~ X
geometricConstraintData4->SetAutomaticConstraintType(Features::GeometricConstraintData::AutoConstraintTypeNone);
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geometricConstraintData4->SetTangentDirection(nullDirection);
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geometricConstraintData4->SetTangentMagnitude(nullScalar);
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geometricConstraintData4->SetCurvature(nullOffset);
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geometricConstraintData4->SetCurvatureDerivative(nullOffset);4 k. K/ y# K: y4 _0 q
geometricConstraintData4->SetHasSymmetricModelingConstraint(false);% ~8 l4 `6 y: [% c
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std::vector<Features::GeometricConstraintData *> constraints1(4);
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constraints1[0] = geometricConstraintData1;! A0 n ~ \% a6 S8 I; C
constraints1[1] = geometricConstraintData2;5 Z7 z1 J" e* U9 P; I0 w
constraints1[2] = geometricConstraintData3;
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constraints1[3] = geometricConstraintData4;
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studioSplineBuilder1->ConstraintManager()->SetContents(constraints1);
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Features::Feature *feature1;, |, n5 G) s! ?. Q0 t- D4 o2 S! ~
feature1 = studioSplineBuilder1->CommitFeature();
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Spline *spline1;
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spline1 = studioSplineBuilder1->Curve();8 a3 }9 }% A! |9 S2 ?" U
studioSplineBuilder1->Destroy();; ]1 F, C( C6 `
/*Save*/8 K3 ^. y5 I8 t& M
NXOpen::PartSaveStatus *partSaveStatus;
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workPart->Save(NXOpen::Part::SaveComponentsTrue, NXOpen::Part::CloseAfterSaveTrue, &partSaveStatus); w) w+ M. g1 K- G0 y3 i* I
}

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