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;
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using std::endl;
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using std::ends;
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using std::cerr;1 n7 Z+ F8 y. r$ o) Z
#else6 V7 y* k7 L1 ~6 |( W
# include <strstream.h>, F9 h, l7 |0 m7 a" v: Q
# include <iostream.h>$ T- I. @! d7 Y7 _" p/ e2 M
#endif
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#include <uf.h>9 C# B+ [8 f3 e
#include <ug_session.hxx>' x: g) d7 Q* t* }6 n) P
#include <UG_exception.hxx>
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#include <uf_defs.h>( e. t+ {# V! B8 V& e4 K
/*Your Code*/
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#include <NXOpen/NXException.hxx>
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#include <NXOpen/Session.hxx>9 c* d" p2 Z7 ?& b; _. c' z' V) f ^
#include <NXOpen/BasePart.hxx>0 P/ O9 p5 k' b8 Q" N& J
#include <NXOpen/Builder.hxx>7 D& w% D, G* v1 @* g$ a6 I
#include <NXOpen/Features_Feature.hxx># x2 H& v3 T3 P' g1 p8 t J7 j; J
#include <NXOpen/Features_FeatureBuilder.hxx>5 _- J7 [' V" F; ]3 M% T+ _, q7 J- [
#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>
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#include <NXOpen/PartSaveStatus.hxx>
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#include <NXOpen/Point.hxx>0 s6 I: A1 f) _1 E
#include <NXOpen/PointCollection.hxx>
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#include <NXOpen/Preferences_PartModeling.hxx>" H7 y+ e" ]6 R4 D w
#include <NXOpen/Preferences_PartPreferences.hxx>
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#include <NXOpen/Session.hxx>3 L, a; ~' B4 w8 {, k. p" I7 q
#include <NXOpen/Spline.hxx>. [" s6 t- I4 R p2 |
#include <NXOpen/Update.hxx>
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using namespace NXOpen;
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/* Main routine */
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extern void main( char argc, char *argv[] )- H/ H3 }. I" U' l
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Session *theSession = Session::GetSession();) Q) S8 E# H2 c8 B! L
NXOpen::NXString partName = "NXcurve.prt";' Q& d+ N7 x* I d
Part *workPart = theSession->;Parts()->NewDisplay(partName, NXOpen::Part::UnitsInches);
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/*创建Studio Spline*/
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Point3d coordinates1(-60.9672168874869, -85.3444953331698, -16.2564577575515);, K4 u9 m3 C }/ n6 d
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;1 S( H/ @# i8 R4 p5 g
point3 = workPart->;Points()->CreatePoint(coordinates3);# A8 z. @( U, P$ H
Point3d coordinates4(50.4956319822501, 34.6877235376336, -42.6348609113142);" `1 F7 E/ R8 E4 B) W) c6 ]! B) `4 R
Point *point4;$ w$ j$ w" s: O
point4 = workPart->;Points()->CreatePoint(coordinates4);' w5 H; ^" Q& m# l9 D! S. _3 l
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Features::StudioSpline *nullFeatures_StudioSpline(NULL);
Features::StudioSplineBuilder *studioSplineBuilder1;* r1 R) h* M" n) Y
studioSplineBuilder1 = workPart->Features()->CreateStudioSplineBuilder(nullFeatures_StudioSpline);1 o- S2 l1 O8 s
studioSplineBuilder1->SetInputCurveOption(Features::StudioSplineBuilder::CurveOptionRetain);
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studioSplineBuilder1->SetSplineMethod(Features::StudioSplineBuilder::MethodByPoles);3 w- T- @2 u' ^; X: [
studioSplineBuilder1->SetDegree(3);
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studioSplineBuilder1->SetPeriodic(false);2 g6 I9 ]; s& E* n& w3 U/ v
std::vector<double> knots1(0);- e* V, w5 k+ M+ h6 e) ?' k: M$ O
studioSplineBuilder1->SetKnots(knots1);; h1 b [' e9 W6 }6 J% f) C: ?" t5 U
std::vector<double> parameters1(0);
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studioSplineBuilder1->SetParameters(parameters1);7 a% c+ l8 c' T% ?
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Features::GeometricConstraintData *geometricConstraintData1;# l6 \5 o0 X3 m! f$ ^
geometricConstraintData1 = studioSplineBuilder1->ConstraintManager()->CreateGeometricConstraintData();4 R& X4 H$ f2 y
geometricConstraintData1->SetPoint(point1);' `6 A7 Z( M) C8 n$ O' g' R& _. U/ r
geometricConstraintData1->SetAutomaticConstraintDirection(Features::GeometricConstraintData::ParameterDirectionIso);0 |: r7 v* n8 r2 w5 D5 Y+ @" R
geometricConstraintData1->SetAutomaticConstraintType(Features::GeometricConstraintData::AutoConstraintTypeNone);6 N8 m6 b" Q* T6 P2 D
Direction *nullDirection(NULL);. k5 N# M/ ^3 C$ }# ~* W
geometricConstraintData1->SetTangentDirection(nullDirection);
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Scalar *nullScalar(NULL);
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geometricConstraintData1->SetTangentMagnitude(nullScalar);; X' R5 T7 i! I% J. J
Offset *nullOffset(NULL);! O a4 j+ d, ^% B
geometricConstraintData1->SetCurvature(nullOffset);$ ~3 P0 P9 m# S1 t
geometricConstraintData1->SetCurvatureDerivative(nullOffset);
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geometricConstraintData1->SetHasSymmetricModelingConstraint(false);7 ~4 t6 g; b D9 w: _) U$ L$ G
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Features::GeometricConstraintData *geometricConstraintData2;1 [- G2 r3 {2 r: K- D7 }9 l
geometricConstraintData2 = studioSplineBuilder1->ConstraintManager()->CreateGeometricConstraintData();1 J" K7 R2 N* Q6 f( d# O# D* b& `' Y) k$ z
geometricConstraintData2->SetPoint(point2);+ B' ~- e& i! p. Y6 s6 C6 y
geometricConstraintData2->SetAutomaticConstraintDirection(Features::GeometricConstraintData::ParameterDirectionIso);: s; j- H# n c
geometricConstraintData2->SetAutomaticConstraintType(Features::GeometricConstraintData::AutoConstraintTypeNone);$ e" m! p1 F, x6 Y# E# s$ j6 {4 V
geometricConstraintData2->SetTangentDirection(nullDirection);
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geometricConstraintData2->SetTangentMagnitude(nullScalar);
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geometricConstraintData2->SetCurvature(nullOffset);
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geometricConstraintData2->SetCurvatureDerivative(nullOffset);$ a% A; }+ @7 J
geometricConstraintData2->SetHasSymmetricModelingConstraint(false);/ l1 j! i' x; b7 @3 k" h
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Features::GeometricConstraintData *geometricConstraintData3;6 ^2 o/ P9 a) ^1 v; O
geometricConstraintData3 = studioSplineBuilder1->ConstraintManager()->CreateGeometricConstraintData();
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geometricConstraintData3->SetPoint(point3);
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geometricConstraintData3->SetAutomaticConstraintDirection(Features::GeometricConstraintData::ParameterDirectionIso);3 X' w S; o6 G9 \" G, q7 `5 Q/ [
geometricConstraintData3->SetAutomaticConstraintType(Features::GeometricConstraintData::AutoConstraintTypeNone);, U; u. C+ h w' K8 O
geometricConstraintData3->SetTangentDirection(nullDirection);
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geometricConstraintData3->SetTangentMagnitude(nullScalar);9 { P/ p" I: t. s% i
geometricConstraintData3->SetCurvature(nullOffset);; ^: J2 ^: U$ ~. ]3 a
geometricConstraintData3->SetCurvatureDerivative(nullOffset);
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geometricConstraintData3->SetHasSymmetricModelingConstraint(false);: v: H( |8 L9 @# H+ s' z
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Features::GeometricConstraintData *geometricConstraintData4;$ g' u6 V4 u8 R1 S u( K
geometricConstraintData4 = studioSplineBuilder1->ConstraintManager()->CreateGeometricConstraintData();
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geometricConstraintData4->SetPoint(point4);3 y+ \2 i2 [# k! m
geometricConstraintData4->SetAutomaticConstraintDirection(Features::GeometricConstraintData::ParameterDirectionIso);. F- x+ n( V ~( |" x
geometricConstraintData4->SetAutomaticConstraintType(Features::GeometricConstraintData::AutoConstraintTypeNone);; f/ E5 \ V, M, N0 U; B; v
geometricConstraintData4->SetTangentDirection(nullDirection);1 u/ A7 N0 i5 s% r% M, [6 a
geometricConstraintData4->SetTangentMagnitude(nullScalar);
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geometricConstraintData4->SetCurvature(nullOffset);
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geometricConstraintData4->SetCurvatureDerivative(nullOffset);
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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;
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constraints1[2] = geometricConstraintData3;$ [" b6 G c* |; h O
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;) ~) Q4 O9 u6 c! H' L p
spline1 = studioSplineBuilder1->Curve();
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studioSplineBuilder1->Destroy();
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/*Save*/
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NXOpen::PartSaveStatus *partSaveStatus;3 |* } }5 v/ I& w- l
workPart->Save(NXOpen::Part::SaveComponentsTrue, NXOpen::Part::CloseAfterSaveTrue, &partSaveStatus);( v) w5 ], Z8 B* E) I7 Z
}

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

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