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 )# J% ^1 ?/ C& T( B
# include <strstream>8 M1 R- b, W1 _% t+ _8 d( H
# include <iostream>/ r+ A; _& i' d9 \) u
using std::ostrstream;/ u& H; x- [# w0 p* A' i
using std::endl; 1 v5 x8 D9 I% u
using std::ends;
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using std::cerr;
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#else
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# include <strstream.h>' M5 D U8 y% v1 B
# include <iostream.h>, N# ? h6 ~0 C# d
#endif
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#include <uf.h>
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#include <ug_session.hxx>1 p$ E2 y% c+ K9 p& h2 }3 `7 Q
#include <UG_exception.hxx>3 Z8 v, o! h) e6 f* b/ e
#include <uf_defs.h>
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/*Your Code*/+ f9 M6 H& P' x, ?% z
#include <NXOpen/NXException.hxx>
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#include <NXOpen/Session.hxx>
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#include <NXOpen/BasePart.hxx>
#include <NXOpen/Builder.hxx>* t/ N( U( d: t7 v$ j
#include <NXOpen/Features_Feature.hxx>
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#include <NXOpen/Features_FeatureBuilder.hxx>& r8 k3 s5 H& E8 s+ a
#include <NXOpen/Features_FeatureCollection.hxx>
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#include <NXOpen/Features_GeometricConstraintData.hxx>8 Y% w7 G% t4 W* X) t
#include <NXOpen/Features_GeometricConstraintDataManager.hxx>; N9 z5 ~# ^) f* b( o
#include <NXOpen/Features_StudioSplineBuilder.hxx>, P! g4 R% a0 s7 G9 p+ I( f9 N
#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>
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#include <NXOpen/PointCollection.hxx>" d" z- W! M& [* r9 H
#include <NXOpen/Preferences_PartModeling.hxx>
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#include <NXOpen/Preferences_PartPreferences.hxx>
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#include <NXOpen/Session.hxx>
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#include <NXOpen/Spline.hxx>8 W& T p7 f* l# |( p8 p7 I- e8 n
#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[] )
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Session *theSession = Session::GetSession();
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NXOpen::NXString partName = "NXcurve.prt";$ n) t8 t0 ^ D$ Y- S
Part *workPart = theSession->;Parts()->NewDisplay(partName, NXOpen::Part::UnitsInches);
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/*创建Studio Spline*/3 |8 G5 O: R+ ^- T3 A# x' X; P$ 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;3 j5 D8 E& c2 U7 E: V d. B+ l0 Y
point2 = workPart->;Points()->CreatePoint(coordinates2);! t, z/ y: W. n+ C* H9 D
Point3d coordinates3(-3.3110308509701, -13.9095206113823, -15.3362809033505);" F$ t$ f- r% e; M6 F9 g& o* [& a* C* p
Point *point3;+ @1 o$ Q9 I/ R6 ?6 J( `
point3 = workPart->;Points()->CreatePoint(coordinates3);
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Point3d coordinates4(50.4956319822501, 34.6877235376336, -42.6348609113142);
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Point *point4;) y2 H4 ]" r, S, z! a
point4 = workPart->;Points()->CreatePoint(coordinates4);! R8 H, f4 `$ R; W9 B! J4 I6 @6 _
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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);8 L$ _3 \# Y! M; t( S* N
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);: l* J- ~7 R3 a3 V: ], K
std::vector<double> knots1(0);
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studioSplineBuilder1->SetKnots(knots1);# {" H# O, X- g) Z
std::vector<double> parameters1(0);
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studioSplineBuilder1->SetParameters(parameters1);# K5 q/ u" {) u
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Features::GeometricConstraintData *geometricConstraintData1;; V, @ O$ j9 y* l3 r
geometricConstraintData1 = studioSplineBuilder1->ConstraintManager()->CreateGeometricConstraintData();
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geometricConstraintData1->SetPoint(point1);
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geometricConstraintData1->SetAutomaticConstraintDirection(Features::GeometricConstraintData::ParameterDirectionIso);
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geometricConstraintData1->SetAutomaticConstraintType(Features::GeometricConstraintData::AutoConstraintTypeNone);
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Direction *nullDirection(NULL);' J- n) B+ I% A- ~. R: L" X2 M3 B
geometricConstraintData1->SetTangentDirection(nullDirection);
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Scalar *nullScalar(NULL);
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geometricConstraintData1->SetTangentMagnitude(nullScalar);
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Offset *nullOffset(NULL);
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geometricConstraintData1->SetCurvature(nullOffset);6 F: e; D! T; O6 c' z W ?
geometricConstraintData1->SetCurvatureDerivative(nullOffset);$ f! t# ~1 o. f3 B" N( {3 t
geometricConstraintData1->SetHasSymmetricModelingConstraint(false);
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Features::GeometricConstraintData *geometricConstraintData2;
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geometricConstraintData2 = studioSplineBuilder1->ConstraintManager()->CreateGeometricConstraintData();% A: ^9 \2 P; s7 ` b* H
geometricConstraintData2->SetPoint(point2);# ]: C- b2 C5 x6 T* u
geometricConstraintData2->SetAutomaticConstraintDirection(Features::GeometricConstraintData::ParameterDirectionIso);
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geometricConstraintData2->SetAutomaticConstraintType(Features::GeometricConstraintData::AutoConstraintTypeNone);
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geometricConstraintData2->SetTangentDirection(nullDirection);
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geometricConstraintData2->SetTangentMagnitude(nullScalar);* w/ C. x& d* Q; V' m: |+ x) t$ G
geometricConstraintData2->SetCurvature(nullOffset);- n+ p! f+ A5 h4 O0 n/ u
geometricConstraintData2->SetCurvatureDerivative(nullOffset);
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geometricConstraintData2->SetHasSymmetricModelingConstraint(false);: w6 Y3 k! H# T3 ? r
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Features::GeometricConstraintData *geometricConstraintData3;- h/ b$ N! q1 U! M" E$ [* T. T
geometricConstraintData3 = studioSplineBuilder1->ConstraintManager()->CreateGeometricConstraintData();8 u9 ? z& K3 F/ G
geometricConstraintData3->SetPoint(point3);
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geometricConstraintData3->SetAutomaticConstraintDirection(Features::GeometricConstraintData::ParameterDirectionIso);
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geometricConstraintData3->SetAutomaticConstraintType(Features::GeometricConstraintData::AutoConstraintTypeNone);( ^! V* w3 v1 l) h0 B& k, b
geometricConstraintData3->SetTangentDirection(nullDirection);7 a3 Y u7 u3 n6 b4 c
geometricConstraintData3->SetTangentMagnitude(nullScalar);* G! T/ J" O' u% j6 d& n# d- ]
geometricConstraintData3->SetCurvature(nullOffset);4 X+ u7 w3 k U
geometricConstraintData3->SetCurvatureDerivative(nullOffset);
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geometricConstraintData3->SetHasSymmetricModelingConstraint(false);
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Features::GeometricConstraintData *geometricConstraintData4;7 }, _- Z( k, m3 R- Z
geometricConstraintData4 = studioSplineBuilder1->ConstraintManager()->CreateGeometricConstraintData();
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geometricConstraintData4->SetPoint(point4);
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geometricConstraintData4->SetAutomaticConstraintDirection(Features::GeometricConstraintData::ParameterDirectionIso);
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geometricConstraintData4->SetAutomaticConstraintType(Features::GeometricConstraintData::AutoConstraintTypeNone);
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geometricConstraintData4->SetTangentDirection(nullDirection);
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geometricConstraintData4->SetTangentMagnitude(nullScalar);' V! X7 T3 d/ K% c$ S5 } G# O
geometricConstraintData4->SetCurvature(nullOffset);
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geometricConstraintData4->SetCurvatureDerivative(nullOffset);" w# G7 t! |6 f/ v1 C, D1 B
geometricConstraintData4->SetHasSymmetricModelingConstraint(false);: h6 B$ Z$ r' i
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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;
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constraints1[3] = geometricConstraintData4;
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studioSplineBuilder1->ConstraintManager()->SetContents(constraints1);! b$ w6 a, N3 F% ?
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Features::Feature *feature1;
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feature1 = studioSplineBuilder1->CommitFeature();2 O% O% q1 W) S2 Y9 @
Spline *spline1;
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spline1 = studioSplineBuilder1->Curve();
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studioSplineBuilder1->Destroy();9 g+ Z4 j0 G# L1 g
/*Save*/
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NXOpen::PartSaveStatus *partSaveStatus;
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workPart->Save(NXOpen::Part::SaveComponentsTrue, NXOpen::Part::CloseAfterSaveTrue, &partSaveStatus);
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}

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