用NX Open C++画Studio Spline的访问冲突中断

p36288 · 发表于 2010-9-10 22:55:33

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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.)。请高手指教。
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 */
#if ! defined ( __hp9000s800 ) && ! defined ( __sgi ) && ! defined ( __sun )
# include <strstream>
# include <iostream>
using std::ostrstream;
using std::endl;
using std::ends;
using std::cerr;
#else
# include <strstream.h>
# include <iostream.h>
#endif
#include <uf.h>
#include <ug_session.hxx>
#include <ug_exception.hxx>
#include <uf_defs.h>
/*Your Code*/
#include <NXOpen/NXException.hxx>
#include <NXOpen/Session.hxx>
#include <NXOpen/BasePart.hxx>
#include <NXOpen/Builder.hxx>
#include <NXOpen/Features_Feature.hxx>
#include <NXOpen/Features_FeatureBuilder.hxx>
#include <NXOpen/Features_FeatureCollection.hxx>
#include <NXOpen/Features_GeometricConstraintData.hxx>
#include <NXOpen/Features_GeometricConstraintDataManager.hxx>
#include <NXOpen/Features_StudioSplineBuilder.hxx>
#include <NXOpen/Part.hxx>
#include <NXOpen/PartCollection.hxx>
#include <NXOpen/PartSaveStatus.hxx>
#include <NXOpen/Point.hxx>
#include <NXOpen/PointCollection.hxx>
#include <NXOpen/Preferences_PartModeling.hxx>
#include <NXOpen/Preferences_PartPreferences.hxx>
#include <NXOpen/Session.hxx>
#include <NXOpen/Spline.hxx>
#include <NXOpen/Update.hxx>
using namespace NXOpen;
/* Main routine */
extern void main( char argc, char *argv[] )
{
Session *theSession = Session::GetSession();
NXOpen::NXString partName = "NXcurve.prt";
Part *workPart = theSession->Parts()->NewDisplay(partName, NXOpen::Part::UnitsInches);
/*创建Studio Spline*/
Point3d coordinates1(-60.9672168874869, -85.3444953331698, -16.2564577575515);
Point *point1;
point1 = workPart->Points()->CreatePoint(coordinates1);
Point3d coordinates2(-36.7798197522759, -26.6915553863001, 28.8322080982988);
Point *point2;
point2 = workPart->Points()->CreatePoint(coordinates2);
Point3d coordinates3(-3.3110308509701, -13.9095206113823, -15.3362809033505);
Point *point3;
point3 = workPart->Points()->CreatePoint(coordinates3);
Point3d coordinates4(50.4956319822501, 34.6877235376336, -42.6348609113142);
Point *point4;
point4 = workPart->Points()->CreatePoint(coordinates4);
Features::StudioSpline *nullFeatures_StudioSpline(NULL);
Features::StudioSplineBuilder *studioSplineBuilder1;
studioSplineBuilder1 = workPart->Features()->CreateStudioSplineBuilder(nullFeatures_StudioSpline);
studioSplineBuilder1->SetInputCurveOption(Features::StudioSplineBuilder::CurveOptionRetain);
studioSplineBuilder1->SetSplineMethod(Features::StudioSplineBuilder::MethodByPoles);
studioSplineBuilder1->SetDegree(3);
studioSplineBuilder1->SetPeriodic(false);
std::vector<double> knots1(0);
studioSplineBuilder1->SetKnots(knots1);
std::vector<double> parameters1(0);
studioSplineBuilder1->SetParameters(parameters1);
Features::GeometricConstraintData *geometricConstraintData1;
geometricConstraintData1 = studioSplineBuilder1->ConstraintManager()->CreateGeometricConstraintData();
geometricConstraintData1->SetPoint(point1);
geometricConstraintData1->SetAutomaticConstraintDirection(Features::GeometricConstraintData::ParameterDirectionIso);
geometricConstraintData1->SetAutomaticConstraintType(Features::GeometricConstraintData::AutoConstraintTypeNone);
Direction *nullDirection(NULL);
geometricConstraintData1->SetTangentDirection(nullDirection);
Scalar *nullScalar(NULL);
geometricConstraintData1->SetTangentMagnitude(nullScalar);
Offset *nullOffset(NULL);
geometricConstraintData1->SetCurvature(nullOffset);
geometricConstraintData1->SetCurvatureDerivative(nullOffset);
geometricConstraintData1->SetHasSymmetricModelingConstraint(false);
Features::GeometricConstraintData *geometricConstraintData2;
geometricConstraintData2 = studioSplineBuilder1->ConstraintManager()->CreateGeometricConstraintData();
geometricConstraintData2->SetPoint(point2);
geometricConstraintData2->SetAutomaticConstraintDirection(Features::GeometricConstraintData::ParameterDirectionIso);
geometricConstraintData2->SetAutomaticConstraintType(Features::GeometricConstraintData::AutoConstraintTypeNone);
geometricConstraintData2->SetTangentDirection(nullDirection);
geometricConstraintData2->SetTangentMagnitude(nullScalar);
geometricConstraintData2->SetCurvature(nullOffset);
geometricConstraintData2->SetCurvatureDerivative(nullOffset);
geometricConstraintData2->SetHasSymmetricModelingConstraint(false);
Features::GeometricConstraintData *geometricConstraintData3;
geometricConstraintData3 = studioSplineBuilder1->ConstraintManager()->CreateGeometricConstraintData();
geometricConstraintData3->SetPoint(point3);
geometricConstraintData3->SetAutomaticConstraintDirection(Features::GeometricConstraintData::ParameterDirectionIso);
geometricConstraintData3->SetAutomaticConstraintType(Features::GeometricConstraintData::AutoConstraintTypeNone);
geometricConstraintData3->SetTangentDirection(nullDirection);
geometricConstraintData3->SetTangentMagnitude(nullScalar);
geometricConstraintData3->SetCurvature(nullOffset);
geometricConstraintData3->SetCurvatureDerivative(nullOffset);
geometricConstraintData3->SetHasSymmetricModelingConstraint(false);
Features::GeometricConstraintData *geometricConstraintData4;
geometricConstraintData4 = studioSplineBuilder1->ConstraintManager()->CreateGeometricConstraintData();
geometricConstraintData4->SetPoint(point4);
geometricConstraintData4->SetAutomaticConstraintDirection(Features::GeometricConstraintData::ParameterDirectionIso);
geometricConstraintData4->SetAutomaticConstraintType(Features::GeometricConstraintData::AutoConstraintTypeNone);
geometricConstraintData4->SetTangentDirection(nullDirection);
geometricConstraintData4->SetTangentMagnitude(nullScalar);
geometricConstraintData4->SetCurvature(nullOffset);
geometricConstraintData4->SetCurvatureDerivative(nullOffset);
geometricConstraintData4->SetHasSymmetricModelingConstraint(false);
std::vector<Features::GeometricConstraintData *> constraints1(4);
constraints1[0] = geometricConstraintData1;
constraints1[1] = geometricConstraintData2;
constraints1[2] = geometricConstraintData3;
constraints1[3] = geometricConstraintData4;
studioSplineBuilder1->ConstraintManager()->SetContents(constraints1);
Features::Feature *feature1;
feature1 = studioSplineBuilder1->CommitFeature();
Spline *spline1;
spline1 = studioSplineBuilder1->Curve();
studioSplineBuilder1->Destroy();
/*Save*/
NXOpen::PartSaveStatus *partSaveStatus;
workPart->Save(NXOpen::Part::SaveComponentsTrue, NXOpen::Part::CloseAfterSaveTrue, &partSaveStatus);
}

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本帖最后由 p36288 于 2010-9-10 23:01 编辑

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

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