实例开发-NX二次开发选平面快速分割实体工具

本实例非博主原创，是从大神的视频课程中学习的。

• 版本：

NX9+VS2012

• 演示：

• 源代码：

//SplitBody

// 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 <uf.h>
#include <uf_ui.h>
#include <uf_disp.h>
#include <uf_modl.h>

// 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);
}


static int init_proc(UF_UI_selection_p_t select, void* user_data)
{
    int errorCode = 0;
    int num_triples = 1;
    UF_UI_mask_t mask_triples[1] = { {UF_face_type, 0, 0}//定义选择面类型
    };
    errorCode = UF_UI_set_sel_mask(select, 
        UF_UI_SEL_MASK_CLEAR_AND_ENABLE_SPECIFIC,
        num_triples,
        mask_triples);
    if (errorCode == 0)
    {
        return UF_UI_SEL_SUCCESS;
    }
    else
    {
        return UF_UI_SEL_FAILURE;
    }
 }


//------------------------------------------------------------------------------
// Do something
//------------------------------------------------------------------------------
void MyClass::do_it()
{

    // TODO: add your code here

L10:

    //打开单对象选择对话框
    char sCue[] = "请选择实体的平面";
    char sTitle[] = "选择平面";
    int iScope = UF_UI_SEL_SCOPE_WORK_PART;
    int iResponse = 0;
    tag_t tObject = NULL_TAG;
    double adCursor[3];
    tag_t tView = NULL_TAG;
    UF_UI_select_with_single_dialog(sCue, sTitle, iScope, init_proc, NULL, &iResponse, &tObject, adCursor, &tView);
    if (iResponse == UF_UI_OK || iResponse == UF_UI_OBJECT_SELECTED || iResponse == UF_UI_OBJECT_SELECTED_BY_NAME)
    {
        //取消高亮
        UF_DISP_set_highlight(tObject, 0);

        //获得面的类型
        int face_type = 0;
        UF_MODL_ask_face_type(tObject,&face_type);
        if (face_type != UF_MODL_PLANAR_FACE)
        {
            uc1601("请选择平面!", 1);
            goto L10;//跳转回去重新选
        }

        //创建基准平面
        tag_t object_tags[3] = {tObject, NULL_TAG, NULL_TAG};
        int point_select[3];
        char* offset_string = "0";
        int num_dplanes = 0;
        tag_t dplane_tag[2];
        UF_MODL_create_relative_dplane(1, object_tags, point_select, 1,NULL, NULL, offset_string, &num_dplanes, dplane_tag );

        //从基准平面特征里拿到对象tag
        int n_eids = 0;
        tag_t* eids;
        UF_MODL_ask_feat_object(dplane_tag[0], &n_eids, &eids);
        tag_t dp_plane_tag = eids[0];

        //面找体tag
        tag_t body_obj_id = NULL_TAG;
        UF_MODL_ask_face_body(tObject, &body_obj_id); 

        //创建分割实体
        tag_t bodies[1] = {body_obj_id};
        int num_split_bodies = 0;
        tag_t* split_bodies = NULL_TAG;
        UF_MODL_split_body(1, bodies, dp_plane_tag, &num_split_bodies, &split_bodies);

        goto L10;//跳转回去重新选
    }

}

//------------------------------------------------------------------------------
// Entry point(s) for unmanaged internal NXOpen C/C++ programs
//------------------------------------------------------------------------------
//  Explicit Execution
extern "C" DllExport void ufusr( char *parm, int *returnCode, int rlen )
{
    UF_initialize();//初始化

    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.");
    }

    UF_terminate();//终止
}


//------------------------------------------------------------------------------
// Unload Handler
//------------------------------------------------------------------------------
extern "C" DllExport int ufusr_ask_unload()
{
    return (int)NXOpen::Session::LibraryUnloadOptionImmediately;
}

Caesar卢尚宇

2021年2月13日