NX11+VS2013

     #include <NXOpen/Line.hxx>

     #include <NXOpen/NXException.hxx>

     #include <NXOpen/PartCollection.hxx>

     #include <NXOpen/Session.hxx>

     #include <uf.h>

     #include <uf_curve.h>

     #include <uf_ui.h>

     #include <NXOpen/Edge.hxx>

     #include <NXOpen/NXObjectManager.hxx>

     #include <uf_eval.h>

     NXOpen::Session *theSession = NXOpen::Session::GetSession();

     NXOpen::Part *workPart(theSession->Parts()->Work());

     NXOpen::Part *displayPart(theSession->Parts()->Display());

     UF_initialize();

     //创建一条直线

     UF_CURVE_line_t Line_Coords;

     Line_Coords.start_point[] = 10.0;

     Line_Coords.start_point[] = 0.0;

     Line_Coords.start_point[] = 0.0;

     Line_Coords.end_point[] = 100.0;

     Line_Coords.end_point[] = 0.0;

     Line_Coords.end_point[] = 0.0;

     tag_t LineTag = NULL_TAG;

     UF_CURVE_create_line(&Line_Coords, &LineTag);

     //方法1:UFUN方法

     //获得一条直线两个端点坐标、直线长度、向量方向

     //函数1(UF_CURVE_ask_line_data)

     UF_CURVE_line_t AskLinePoint;

     UF_CURVE_ask_line_data(LineTag, &AskLinePoint);

     double UF1LinePoint1[] = { AskLinePoint.start_point[], AskLinePoint.start_point[], AskLinePoint.start_point[] };//获得直线起点坐标

     double UF1LinePoint2[] = { AskLinePoint.end_point[], AskLinePoint.end_point[], AskLinePoint.end_point[] };//获得直线终点坐标

     //函数2(UF_EVAL_ask_line)

     UF_EVAL_p_t evaluator;

     UF_EVAL_initialize(LineTag, &evaluator);

     UF_EVAL_line_t line;

     UF_EVAL_ask_line(evaluator, &line);

     double UFLineLength = line.length;//获得直线长度

     double UF2LinePoint1[] = { line.start[], line.start[], line.start[] };//获得直线起点坐标

     double UF2LinePoint2[] = { line.end[], line.end[], line.end[] };//获得直线终点坐标

     double UFLineVec[] = { line.unit[], line.unit[], line.unit[] };//获得直线向量方向

     char msg[];

     sprintf_s(msg, "直线的长度为:%.3f\n直线的起点坐标X为:%.3f  直线的起点坐标Y为:%.3f  直线的起点坐标Z为:%.3f\n直线的终点坐标X为%.3f  直线的终点坐标Y为:%.3f 直线的终点坐标Z为:%.3f\n直线的向量方向为:%.0f,%.0f,%.0f",

         UFLineLength, UF2LinePoint1[], UF2LinePoint1[], UF2LinePoint1[], UF2LinePoint2[], UF2LinePoint2[], UF2LinePoint2[], UFLineVec[], UFLineVec[], UFLineVec[]);

     lw->Open();

     lw->WriteLine(msg);

     UF_EVAL_free(evaluator);

     //方法2:NXOpen方法

     //获得一条直线两个端点坐标、直线长度

     std::vector<Line*> LineVector;

     LineVector.push_back(dynamic_cast<Line*>(NXObjectManager::Get(LineTag)));

     for (int i = ; i < LineVector.size(); i++)

     {

         double NXLineLength = LineVector[i]->GetLength();//获得直线长度

         Point3d NXLinePoint1 = LineVector[i]->StartPoint();//获得直线起点坐标

         //char msg[200];

         //sprintf_s(msg, "%.3f,%.3f,%.3f", NXLinePoint1.X, NXLinePoint1.Y, NXLinePoint1.Z);

         //uc1601(msg, 1);

         Point3d NXLinePoint2 = LineVector[i]->EndPoint();//获得直线终点坐标

         //sprintf_s(msg, "%.3f,%.3f,%.3f", NXLinePoint2.X, NXLinePoint2.Y, NXLinePoint2.Z);

         //uc1601(msg, 1);

     }

     UF_terminate();