NX二次开发-NXOPEN C++方式创建草图,添加约束,标注尺寸

NX9+VS2012   //CreateSketch  // Mandatory UF Includes #include <uf.h> #include <uf_object_types.h>  // Internal Includes #include <NXOpen/ListingWindow.hxx> #include <NXOpen/NXMessageBox.hxx> #include <NXOpen/UI.hxx>  // Internal+External Includes #include <NXOpen/Annotations.hxx> #include <NXOpen/Assemblies_Component.hxx> #include <NXOpen/Assemblies_ComponentAssembly.hxx> #include <NXOpen/Body.hxx> #include <NXOpen/BodyCollection.hxx> #include <NXOpen/Face.hxx> #include <NXOpen/Line.hxx> #include <NXOpen/NXException.hxx> #include <NXOpen/NXObject.hxx> #include <NXOpen/Part.hxx> #include <NXOpen/PartCollection.hxx> #include <NXOpen/Session.hxx>   //头文件 #include <NXOpen/Sketch.hxx> #include <NXOpen/SketchCollection.hxx> #include <NXOpen/SketchInPlaceBuilder.hxx> #include <NXOpen/Plane.hxx> #include <NXOpen/PlaneCollection.hxx> #include <NXOpen/Features_Feature.hxx> #include <NXOpen/Features_FeatureBuilder.hxx> #include <NXOpen/Features_FeatureCollection.hxx> #include <NXOpen/Curve.hxx> #include <NXOpen/CurveCollection.hxx> #include <NXOpen/Line.hxx> #include <NXOpen/LineCollection.hxx> #include <NXOpen/Preferences_SessionPreferences.hxx> #include <NXOpen/Preferences_SessionSketch.hxx> #include <NXOpen/Preferences_SketchPreferences.hxx> #include <NXOpen/Point.hxx> #include <NXOpen/PointCollection.hxx> #include <NXOpen/Expression.hxx> #include <NXOpen/ExpressionCollection.hxx>    // Std C++ Includes #include <iostream> #include <sstream>  using namespace NXOpen; using std::string; using std::exception; using std::stringstream; using std::endl; using std::cout; using std::cerr;   //------------------------------------------------------------------------------ // NXOpen c++ test class  //------------------------------------------------------------------------------ class MyClass {     // class members public:     static Session *theSession;     static UI *theUI;      MyClass();     ~MyClass();      void do_it();     void print(const NXString &);     void print(const string &);     void print(const char*);  private:     Part *workPart, *displayPart;     NXMessageBox *mb;     ListingWindow *lw;     LogFile *lf; };  //------------------------------------------------------------------------------ // Initialize static variables //------------------------------------------------------------------------------ Session *(MyClass::theSession) = NULL; UI *(MyClass::theUI) = NULL;  //------------------------------------------------------------------------------ // Constructor  //------------------------------------------------------------------------------ MyClass::MyClass() {      // Initialize the NX Open C++ API environment     MyClass::theSession = NXOpen::Session::GetSession();     MyClass::theUI = UI::GetUI();     mb = theUI->NXMessageBox();     lw = theSession->ListingWindow();     lf = theSession->LogFile();      workPart = theSession->Parts()->Work();     displayPart = theSession->Parts()->Display();  }  //------------------------------------------------------------------------------ // Destructor //------------------------------------------------------------------------------ MyClass::~MyClass() { }  //------------------------------------------------------------------------------ // Print string to listing window or stdout //------------------------------------------------------------------------------ void MyClass::print(const NXString &msg) {     if(! lw->IsOpen() ) lw->Open();     lw->WriteLine(msg); } void MyClass::print(const string &msg) {     if(! lw->IsOpen() ) lw->Open();     lw->WriteLine(msg); } void MyClass::print(const char * msg) {     if(! lw->IsOpen() ) lw->Open();     lw->WriteLine(msg); }     //------------------------------------------------------------------------------ // Do something //------------------------------------------------------------------------------ void MyClass::do_it() {      // TODO: add your code here      //在任务环境中绘制草图,不加就是直接草图     theSession->BeginTaskEnvironment();      NXOpen::Sketch *nullNXOpen_Sketch(NULL);     //按平面方式创建草图     NXOpen::SketchInPlaceBuilder *sketchInPlaceBuilder1;     sketchInPlaceBuilder1 = workPart->Sketches()->CreateNewSketchInPlaceBuilder(nullNXOpen_Sketch);      //设置平面选项     sketchInPlaceBuilder1->SetPlaneOption(Sketch::PlaneOptionNewPlane);      //创建平面(Z平面)     sketchInPlaceBuilder1->Plane()->SetMethod(PlaneTypes::MethodTypeFixedZ);      //连续自动标注尺寸     theSession->Preferences()->Sketch()->SetContinuousAutoDimensioning(false);      //生成     NXOpen::NXObject *nXObject1;     nXObject1 = sketchInPlaceBuilder1->Commit();      //设置对象属性的名字     nXObject1->SetName("ObjectName");      //转换成Feature     NXOpen::Sketch *sketch1(dynamic_cast<NXOpen::Sketch *>(nXObject1));     NXOpen::Features::Feature *feature1;     feature1 = sketch1->Feature();      //设置草图特征的名字     feature1->SetName("SketchFeatureName");      //销毁     sketchInPlaceBuilder1->Destroy();      //退出任务环境草图,不加就是直接草图     theSession->EndTaskEnvironment();      //激活草图     sketch1->Activate(NXOpen::Sketch::ViewReorientTrue);//参数是否将视图定向到草图      //创建四条直线(做矩形)     Point3d startPoint1(0, 0, 0);     Point3d endPoint1(100, 0, 0);     Line *line1 = workPart->Curves()->CreateLine(startPoint1, endPoint1);      Point3d startPoint2(100, 0, 0);     Point3d endPoint2(100, -100, 0);     Line *line2 = workPart->Curves()->CreateLine(startPoint2, endPoint2);      Point3d startPoint3(100, -100, 0);     Point3d endPoint3(0, -100, 0);     Line *line3 = workPart->Curves()->CreateLine(startPoint3, endPoint3);      Point3d startPoint4(0, -100, 0);     Point3d endPoint4(0, 0, 0);     Line *line4 = workPart->Curves()->CreateLine(startPoint4, endPoint4);      //添加到草图里     sketch1->AddGeometry(line1, Sketch::InferConstraintsOptionInferCoincidentConstraints);//参数二,自动推断出约束     sketch1->AddGeometry(line2, Sketch::InferConstraintsOptionInferCoincidentConstraints);     sketch1->AddGeometry(line3, Sketch::InferConstraintsOptionInferCoincidentConstraints);     sketch1->AddGeometry(line4, Sketch::InferConstraintsOptionInferCoincidentConstraints);      //1.由创建几何约束方法使用,以指示约束应该应用于什么几何     Sketch::ConstraintGeometry geom_line1;     geom_line1.Geometry = line1;//几何对象     geom_line1.PointType = Sketch::ConstraintPointTypeNone;//点的类型     geom_line1.SplineDefiningPointIndex = 0;//忽略,除非点类型是SplineDefiningPoint     //创建一个水平约束     sketch1->CreateHorizontalConstraint(geom_line1);      //2.     Sketch::ConstraintGeometry geom_line2;     geom_line2.Geometry = line2;     geom_line2.PointType = Sketch::ConstraintPointTypeNone;     geom_line2.SplineDefiningPointIndex = 0;     //创建一个垂直约束     sketch1->CreateVerticalConstraint(geom_line2);      //3.     Sketch::ConstraintGeometry geom_line3;     geom_line3.Geometry = line3;     geom_line3.PointType = Sketch::ConstraintPointTypeNone;     geom_line3.SplineDefiningPointIndex = 0;     //创建一个水平约束     sketch1->CreateHorizontalConstraint(geom_line3);      //4.     Sketch::ConstraintGeometry geom_line4;     geom_line4.Geometry = line4;     geom_line4.PointType = Sketch::ConstraintPointTypeNone;     geom_line4.SplineDefiningPointIndex = 0;     //创建一个垂直约束     sketch1->CreateVerticalConstraint(geom_line4);      //1.     Sketch::ConstraintGeometry geom_line1_startPoint;     geom_line1_startPoint.Geometry = line1;//几何对象(直线)     geom_line1_startPoint.PointType = Sketch::ConstraintPointTypeStartVertex;//通过这条线找到它的起始端点     geom_line1_startPoint.SplineDefiningPointIndex = 0;//忽略,除非点类型是SplineDefiningPoint      //得到草图原点坐标     Point3d SketchOri = sketch1->Origin();      //创建一个点     Point *OriPoint = workPart->Points()->CreatePoint(SketchOri);      //2.     Sketch::ConstraintGeometry geom_OriPoint;     geom_OriPoint.Geometry = OriPoint;//几何对象(点)     geom_OriPoint.PointType = Sketch::ConstraintPointTypeNone;//点的类型为空     geom_OriPoint.SplineDefiningPointIndex = 0;//忽略,除非点类型是SplineDefiningPoint      //创建点到点约束     sketch1->CreateCoincidentConstraint(geom_line1_startPoint, geom_OriPoint);      //标注尺寸约束(直线1)     NXObject *nullNXObject(NULL);     Sketch::DimensionGeometry dimLine1_startPoint;     dimLine1_startPoint.Geometry = line1;     dimLine1_startPoint.AssocType = Sketch::AssocTypeStartPoint;//起点     dimLine1_startPoint.AssocValue = 0;     dimLine1_startPoint.HelpPoint.X = 0.0;     dimLine1_startPoint.HelpPoint.Y = 0.0;     dimLine1_startPoint.HelpPoint.Z = 0.0;     dimLine1_startPoint.View = nullNXObject;      Sketch::DimensionGeometry dimLine1_endPoint;     dimLine1_endPoint.Geometry = line1;     dimLine1_endPoint.AssocType = Sketch::AssocTypeEndPoint;//终点     dimLine1_endPoint.AssocValue = 0;     dimLine1_endPoint.HelpPoint.X = 0.0;     dimLine1_endPoint.HelpPoint.Y = 0.0;     dimLine1_endPoint.HelpPoint.Z = 0.0;     dimLine1_endPoint.View = nullNXObject;      Point3d dimOri1(100,15,0);//尺寸位置放置的点     Expression *dimExp1 = workPart->Expressions()->CreateSystemExpression("A1=200");//创建表达式     sketch1->CreateDimension(Sketch::ConstraintTypeParallelDim, dimLine1_startPoint, dimLine1_endPoint, dimOri1, dimExp1, Sketch::DimensionOptionCreateAsDriving);      //标注尺寸约束(直线2)     Sketch::DimensionGeometry dimLine2_startPoint;     dimLine2_startPoint.Geometry = line2;     dimLine2_startPoint.AssocType = Sketch::AssocTypeStartPoint;//起点     dimLine2_startPoint.AssocValue = 0;     dimLine2_startPoint.HelpPoint.X = 0.0;     dimLine2_startPoint.HelpPoint.Y = 0.0;     dimLine2_startPoint.HelpPoint.Z = 0.0;     dimLine2_startPoint.View = nullNXObject;      Sketch::DimensionGeometry dimLine2_endPoint;     dimLine2_endPoint.Geometry = line2;     dimLine2_endPoint.AssocType = Sketch::AssocTypeEndPoint;//终点     dimLine2_endPoint.AssocValue = 0;     dimLine2_endPoint.HelpPoint.X = 0.0;     dimLine2_endPoint.HelpPoint.Y = 0.0;     dimLine2_endPoint.HelpPoint.Z = 0.0;     dimLine2_endPoint.View = nullNXObject;      Point3d dimOri2(210,-100,0);//尺寸位置放置的点     Expression *dimExp2 = workPart->Expressions()->CreateSystemExpression("A2=200");//创建表达式     sketch1->CreateDimension(Sketch::ConstraintTypeParallelDim, dimLine2_startPoint, dimLine2_endPoint, dimOri2, dimExp2, Sketch::DimensionOptionCreateAsDriving);      //完成草图     sketch1->Deactivate(Sketch::ViewReorientTrue, Sketch::UpdateLevelModel);//参数一,不重新定位视图到草图.参数二,更新完整的模型和草图  }  //------------------------------------------------------------------------------ // Entry point(s) for unmanaged internal NXOpen C/C++ programs //------------------------------------------------------------------------------ //  Explicit Execution extern "C" DllExport void ufusr( char *parm, int *returnCode, int rlen ) {     try     {         // Create NXOpen C++ class instance         MyClass *theMyClass;         theMyClass = new MyClass();         theMyClass->do_it();         delete theMyClass;     }     catch (const NXException& e1)     {         UI::GetUI()->NXMessageBox()->Show("NXException", NXOpen::NXMessageBox::DialogTypeError, e1.Message());     }     catch (const exception& e2)     {         UI::GetUI()->NXMessageBox()->Show("Exception", NXOpen::NXMessageBox::DialogTypeError, e2.what());     }     catch (...)     {         UI::GetUI()->NXMessageBox()->Show("Exception", NXOpen::NXMessageBox::DialogTypeError, "Unknown Exception.");     } }   //------------------------------------------------------------------------------ // Unload Handler //------------------------------------------------------------------------------ extern "C" DllExport int ufusr_ask_unload() {     return (int)NXOpen::Session::LibraryUnloadOptionImmediately; }   Caesar卢尚宇 2020年8月15日

代码步骤解析

1.在任务环境中绘制草图(去Session类里)

//在任务环境中绘制草图,不加就是直接草图 theSession->BeginTaskEnvironment();   //退出任务环境草图,不加就是直接草图 theSession->EndTaskEnvironment();

2.找到SketchCollection类,创建Builder,创建草图

NXOpen::Sketch *nullNXOpen_Sketch(NULL); //按平面方式创建草图 NXOpen::SketchInPlaceBuilder *sketchInPlaceBuilder1; sketchInPlaceBuilder1 = workPart->Sketches()->CreateNewSketchInPlaceBuilder(nullNXOpen_Sketch);

只介绍在平面和基于路径两种方式(类里的其他创建方法不做介绍)

在平面上创建草图

基于路径创建草图

3.设置草图参数(定义Builder里的参数)

//设置平面选项 sketchInPlaceBuilder1->SetPlaneOption(Sketch::PlaneOptionNewPlane);  //创建平面(Z平面) sketchInPlaceBuilder1->Plane()->SetMethod(PlaneTypes::MethodTypeFixedZ);

按需定义需要的参数

这里我定义了两个参数

设置平面选项为新建基准平面

这里是个枚举类型

返回指定的基准面

定义枚举(Z平面)

4.定义草图首选项参数(去Session类里)

//连续自动标注尺寸 theSession->Preferences()->Sketch()->SetContinuousAutoDimensioning(false);

5.生成草图(调用Builder->Commit)

//生成 NXOpen::NXObject *nXObject1; nXObject1 = sketchInPlaceBuilder1->Commit();

SketchInPlaceBuilder下没有找到->Commit()方法

去公共成员函数里继承->SetName方法

6.设置对象属性的名字

//设置对象属性的名字 nXObject1->SetName("ObjectName");

7.将NXObject对象强制转换成Feature特征类型

//转换成Feature NXOpen::Sketch *sketch1(dynamic_cast<NXOpen::Sketch *>(nXObject1)); NXOpen::Features::Feature *feature1; feature1 = sketch1->Feature();

8.设置草图特征的名字

//设置草图特征的名字 feature1->SetName("SketchFeatureName");

去公共成员函数里继承->SetName方法

9.销毁Builder

//销毁 sketchInPlaceBuilder1->Destroy();

去公共成员函数里继承->Destroy方法

10.激活草图

//激活草图 sketch1->Activate(NXOpen::Sketch::ViewReorientTrue);//参数是否将视图定向到草图

定义枚举

11.创建直线

//创建四条直线(做矩形) Point3d startPoint1(0, 0, 0); Point3d endPoint1(100, 0, 0); Line *line1 = workPart->Curves()->CreateLine(startPoint1, endPoint1);  Point3d startPoint2(100, 0, 0); Point3d endPoint2(100, -100, 0); Line *line2 = workPart->Curves()->CreateLine(startPoint2, endPoint2);  Point3d startPoint3(100, -100, 0); Point3d endPoint3(0, -100, 0); Line *line3 = workPart->Curves()->CreateLine(startPoint3, endPoint3);  Point3d startPoint4(0, -100, 0); Point3d endPoint4(0, 0, 0); Line *line4 = workPart->Curves()->CreateLine(startPoint4, endPoint4);

12.将曲线或点添加到草图里

//添加到草图里 sketch1->AddGeometry(line1, Sketch::InferConstraintsOptionInferCoincidentConstraints);//参数二,自动推断出约束 sketch1->AddGeometry(line2, Sketch::InferConstraintsOptionInferCoincidentConstraints); sketch1->AddGeometry(line3, Sketch::InferConstraintsOptionInferCoincidentConstraints); sketch1->AddGeometry(line4, Sketch::InferConstraintsOptionInferCoincidentConstraints);

定义枚举

13.创建几何约束(竖直,水平,点到点重合等)

//1.由创建几何约束方法使用,以指示约束应该应用于什么几何 Sketch::ConstraintGeometry geom_line1; geom_line1.Geometry = line1;//几何对象 geom_line1.PointType = Sketch::ConstraintPointTypeNone;//点的类型 geom_line1.SplineDefiningPointIndex = 0;//忽略,除非点类型是SplineDefiningPoint //创建一个水平约束 sketch1->CreateHorizontalConstraint(geom_line1);  //2. Sketch::ConstraintGeometry geom_line2; geom_line2.Geometry = line2; geom_line2.PointType = Sketch::ConstraintPointTypeNone; geom_line2.SplineDefiningPointIndex = 0; //创建一个垂直约束 sketch1->CreateVerticalConstraint(geom_line2);  //3. Sketch::ConstraintGeometry geom_line3; geom_line3.Geometry = line3; geom_line3.PointType = Sketch::ConstraintPointTypeNone; geom_line3.SplineDefiningPointIndex = 0; //创建一个水平约束 sketch1->CreateHorizontalConstraint(geom_line3);  //4. Sketch::ConstraintGeometry geom_line4; geom_line4.Geometry = line4; geom_line4.PointType = Sketch::ConstraintPointTypeNone; geom_line4.SplineDefiningPointIndex = 0; //创建一个垂直约束 sketch1->CreateVerticalConstraint(geom_line4);

//1. Sketch::ConstraintGeometry geom_line1_startPoint; geom_line1_startPoint.Geometry = line1;//几何对象(直线) geom_line1_startPoint.PointType = Sketch::ConstraintPointTypeStartVertex;//通过这条线找到它的起始端点 geom_line1_startPoint.SplineDefiningPointIndex = 0;//忽略,除非点类型是SplineDefiningPoint  //得到草图原点坐标 Point3d SketchOri = sketch1->Origin();  //创建一个点 Point *OriPoint = workPart->Points()->CreatePoint(SketchOri);  //2. Sketch::ConstraintGeometry geom_OriPoint; geom_OriPoint.Geometry = OriPoint;//几何对象(点) geom_OriPoint.PointType = Sketch::ConstraintPointTypeNone;//点的类型为空 geom_OriPoint.SplineDefiningPointIndex = 0;//忽略,除非点类型是SplineDefiningPoint  //创建点到点约束 sketch1->CreateCoincidentConstraint(geom_line1_startPoint, geom_OriPoint);

点进去是个结构体,里面有例子说明(按照说明去定义)

创建水平约束

创建竖直约束

创建点到点约束

如果需要创建其他几何约束,去找对于方法就行了。

14.创建尺寸约束

//标注尺寸约束(直线1) NXObject *nullNXObject(NULL); Sketch::DimensionGeometry dimLine1_startPoint; dimLine1_startPoint.Geometry = line1; dimLine1_startPoint.AssocType = Sketch::AssocTypeStartPoint;//起点 dimLine1_startPoint.AssocValue = 0; dimLine1_startPoint.HelpPoint.X = 0.0; dimLine1_startPoint.HelpPoint.Y = 0.0; dimLine1_startPoint.HelpPoint.Z = 0.0; dimLine1_startPoint.View = nullNXObject;  Sketch::DimensionGeometry dimLine1_endPoint; dimLine1_endPoint.Geometry = line1; dimLine1_endPoint.AssocType = Sketch::AssocTypeEndPoint;//终点 dimLine1_endPoint.AssocValue = 0; dimLine1_endPoint.HelpPoint.X = 0.0; dimLine1_endPoint.HelpPoint.Y = 0.0; dimLine1_endPoint.HelpPoint.Z = 0.0; dimLine1_endPoint.View = nullNXObject;  Point3d dimOri1(100,15,0);//尺寸位置放置的点 Expression *dimExp1 = workPart->Expressions()->CreateSystemExpression("A1=200");//创建表达式 sketch1->CreateDimension(Sketch::ConstraintTypeParallelDim, dimLine1_startPoint, dimLine1_endPoint, dimOri1, dimExp1, Sketch::DimensionOptionCreateAsDriving);  //标注尺寸约束(直线2) Sketch::DimensionGeometry dimLine2_startPoint; dimLine2_startPoint.Geometry = line2; dimLine2_startPoint.AssocType = Sketch::AssocTypeStartPoint;//起点 dimLine2_startPoint.AssocValue = 0; dimLine2_startPoint.HelpPoint.X = 0.0; dimLine2_startPoint.HelpPoint.Y = 0.0; dimLine2_startPoint.HelpPoint.Z = 0.0; dimLine2_startPoint.View = nullNXObject;  Sketch::DimensionGeometry dimLine2_endPoint; dimLine2_endPoint.Geometry = line2; dimLine2_endPoint.AssocType = Sketch::AssocTypeEndPoint;//终点 dimLine2_endPoint.AssocValue = 0; dimLine2_endPoint.HelpPoint.X = 0.0; dimLine2_endPoint.HelpPoint.Y = 0.0; dimLine2_endPoint.HelpPoint.Z = 0.0; dimLine2_endPoint.View = nullNXObject;  Point3d dimOri2(210,-100,0);//尺寸位置放置的点 Expression *dimExp2 = workPart->Expressions()->CreateSystemExpression("A2=200");//创建表达式 sketch1->CreateDimension(Sketch::ConstraintTypeParallelDim, dimLine2_startPoint, dimLine2_endPoint, dimOri2, dimExp2, Sketch::DimensionOptionCreateAsDriving);

定义枚举(尺寸的类型)

定义结构体里的参数,里面有例子参考

创建表达式给尺寸用

设置枚举定义尺寸类型(驱动尺寸还是参考尺寸)

15.完成草图

//完成草图 sketch1->Deactivate(Sketch::ViewReorientTrue, Sketch::UpdateLevelModel);//参数一,不重新定位视图到草图.参数二,更新完整的模型和草图

定义枚举

补充 除了上述方法添加几何约束和尺寸标注外，也可以用单独的Buider方法去创建

SketchConstraintBuilder *sketchConstraintBuilder1;     sketchConstraintBuilder1 = workPart->Sketches()->CreateConstraintBuilder();

SketchRapidDimensionBuilder *sketchRapidDimensionBuilder1;     sketchRapidDimensionBuilder1 = workPart->Sketches()->CreateRapidDimensionBuilder();

Caesar卢尚宇

2020年8月15日