【NX二次开发】创建有界平面UF_MODL_create_bplane

先准备几条曲线如下图所示，我们用这几条线来创建一个有界平面：

效果:

 源码：

//有界平面
extern DllExport void ufusr(char *param, int *returnCode, int rlen)
{
    UF_initialize();
    uc1601("有界平面", 1);
    tag_t tagLine[6] = { 45888,46337,46215,46015,45057,45256 };

    UF_STRING_t generator;
    UF_STRING_p_t ge = &generator;
    UF_MODL_init_string_list(ge);
    int iqy = 2;//闭合环数量
    int iby = 6;//边缘总数
    UF_MODL_create_string_list(iqy, iby, ge);

    ge->id[0] = tagLine[0];
    ge->id[1] = tagLine[1];
    ge->id[2] = tagLine[2];
    ge->id[3] = tagLine[3];
    ge->id[4] = tagLine[4];
    ge->string[0] = 5;//第1条环有几条边
    ge->dir[0] = 1;   //方向1、-1意义不大

    ge->id[5] = tagLine[5];
    ge->string[1] = 1; //第2条环有几条边
    ge->dir[1] = 1;

    double tol[3];        //公差
    tol[0] = 0.001;
    tol[1] = 0.5 * (PI / 180);
    tol[2] = 0.02;

    tag_t tagFace1 = 0;
    UF_MODL_create_bplane(ge, tol, &tagFace1);//有界平面

    UF_terminate();
}

extern int ufusr_ask_unload(void)
{
    return (UF_UNLOAD_IMMEDIATELY);
}

---

下面还有一个官方例子，我们先看效果：

 源码：

//有界平面
#include <stdio.h>
#include <string.h>
#include <uf.h>
#include <uf_modl.h>
#include <uf_curve.h>
#include <uf_part.h>
#include <uf_csys.h>

#define UF_CALL(X) (report( __FILE__, __LINE__, #X, (X)))

static int report(char *file, int line, char *call, int irc)
{
    if (irc)
    {
        char    messg[133];
        printf("%s, line %d:  %s\n", file, line, call);
        (UF_get_fail_message(irc, messg)) ?
            printf("    returned a %d\n", irc) :
            printf("    returned error %d:  %s\n", irc, messg);
    }
    return(irc);
}

static void do_ugopen_api(void)
{
    //有界平面边公差
    double tol[3];
    /* data points for objects in loops */
    static double points[45] = { 4.,-2.,0.,4.,4.,0.,-4.,4.,0.,-4.,
        -4.,0.,0.,-2.,0.,-2.,3.,0.,-3.,3.,0.,-3.,2.,0.,
        -2.,2.,0.,-2.,-1.,0.,2.,3.,0.,3.,3.,0.,3.,2.,0.,
        2.,2.,0.,2.,3.,0. };
    static double startang = 0.0;
    static double endang = 6.28318530717958648;
    static double arcrad = 1.0;
    char prtnam[133];
    int loops[4];
    int numlps = 4;
    int units = 2;
    int arc = 1;
    int k, total;
    tag_t bpobj;
    tag_t part;
    tag_t objarray1[4];
    tag_t objarray2[3];
    tag_t objarray3, wcs_tag;
    tag_t objarray4[4];
    UF_STRING_t generator;
    UF_STRING_p_t ge = &generator;

    UF_CURVE_line_t line1;
    UF_CURVE_line_t line2;
    UF_CURVE_line_t line3;
    UF_CURVE_line_t line4;
    UF_CURVE_line_t line5;
    UF_CURVE_line_t line6;
    UF_CURVE_line_t line7;
    UF_CURVE_line_t line8;
    UF_CURVE_line_t line9;
    UF_CURVE_arc_t arc1;

    line1.start_point[0] = points[3];
    line1.start_point[1] = points[4];
    line1.start_point[2] = points[5];
    line1.end_point[0] = points[0];
    line1.end_point[1] = points[1];
    line1.end_point[2] = points[2];

    line2.start_point[0] = points[6];
    line2.start_point[1] = points[7];
    line2.start_point[2] = points[8];
    line2.end_point[0] = points[3];
    line2.end_point[1] = points[4];
    line2.end_point[2] = points[5];

    line3.start_point[0] = points[9];
    line3.start_point[1] = points[10];
    line3.start_point[2] = points[11];
    line3.end_point[0] = points[6];
    line3.end_point[1] = points[7];
    line3.end_point[2] = points[8];

    line4.start_point[0] = points[15];
    line4.start_point[1] = points[16];
    line4.start_point[2] = points[17];
    line4.end_point[0] = points[18];
    line4.end_point[1] = points[19];
    line4.end_point[2] = points[20];

    line5.start_point[0] = points[18];
    line5.start_point[1] = points[19];
    line5.start_point[2] = points[20];
    line5.end_point[0] = points[21];
    line5.end_point[1] = points[22];
    line5.end_point[2] = points[23];

    line6.start_point[0] = points[30];
    line6.start_point[1] = points[31];
    line6.start_point[2] = points[32];
    line6.end_point[0] = points[33];
    line6.end_point[1] = points[34];
    line6.end_point[2] = points[35];

    line7.start_point[0] = points[33];
    line7.start_point[1] = points[34];
    line7.start_point[2] = points[35];
    line7.end_point[0] = points[36];
    line7.end_point[1] = points[37];
    line7.end_point[2] = points[38];

    line8.start_point[0] = points[36];
    line8.start_point[1] = points[37];
    line8.start_point[2] = points[38];
    line8.end_point[0] = points[39];
    line8.end_point[1] = points[40];
    line8.end_point[2] = points[41];

    line9.start_point[0] = points[39];
    line9.start_point[1] = points[40];
    line9.start_point[2] = points[41];
    line9.end_point[0] = points[42];
    line9.end_point[1] = points[43];
    line9.end_point[2] = points[44];

    arc1.start_angle = startang;
    arc1.end_angle = endang;
    arc1.arc_center[0] = points[27];
    arc1.arc_center[1] = points[28];
    arc1.arc_center[2] = points[29];
    arc1.radius = arcrad;

    strcpy(prtnam, "bplane");
    uc1601("创建部件bplane.prt", 1);
    UF_CALL(UF_PART_new(prtnam, units, &part));
    UF_CALL(UF_CSYS_ask_wcs(&wcs_tag));
    UF_CALL(UF_CSYS_ask_matrix_of_object(wcs_tag, &arc1.matrix_tag));

    //为有界平面创建几何图形
    //1个外围回路和3个孔回路
    //创建外围边界环路 -- 3条线和1条弧线
    uc1601("创建外围环", 1);
    loops[0] = 4;
    UF_CALL(UF_CURVE_create_line(&line1, &objarray1[0]));
    UF_CALL(UF_CURVE_create_line(&line2, &objarray1[1]));
    UF_CALL(UF_CURVE_create_line(&line3, &objarray1[2]));
    //通过三个点创建一个弧
    uf5063(&arc, points, &points[12], &points[9], &objarray1[3]);

    //创建孔边界环路1 -- 2条线和1条弧线
    uc1601("创建内环1", 1);
    loops[1] = 3;
    UF_CALL(UF_CURVE_create_line(&line4, &objarray2[0]));
    UF_CALL(UF_CURVE_create_line(&line5, &objarray2[1]));
    (uf5063)(&arc, &points[21], &points[24], &points[15], &objarray2[2]);

    //创建孔边界环路2 -- 1个圆弧
    uc1601("创建内环2", 1);
    loops[2] = 1;
    UF_CALL(UF_CURVE_create_arc(&arc1, &objarray3));

    //创建孔边界环路2 -- 4条线
    uc1601("创建内环3", 1);
    loops[3] = 4;
    UF_CALL(UF_CURVE_create_line(&line6, &objarray4[0]));
    UF_CALL(UF_CURVE_create_line(&line7, &objarray4[1]));
    UF_CALL(UF_CURVE_create_line(&line8, &objarray4[2]));
    UF_CALL(UF_CURVE_create_line(&line9, &objarray4[3]));

    UF_MODL_init_string_list(ge);
    UF_MODL_create_string_list(numlps, 12, ge);

    //将数据存储到字符串列表结构中
    total = 0;
    ge->string[0] = loops[0];
    ge->dir[0] = 1;
    for (k = 0; k < loops[0]; k++) ge->id[total++] = objarray1[k];
    ge->string[1] = loops[1];
    ge->dir[1] = -1;
    for (k = 0; k < loops[1]; k++) ge->id[total++] = objarray2[k];
    ge->string[2] = loops[2];
    ge->dir[2] = 1;
    ge->id[total++] = objarray3;
    ge->string[3] = loops[3];
    ge->dir[3] = -1;
    for (k = 0; k < loops[3]; k++) ge->id[total++] = objarray4[k];
    if (total != 12) printf("Error in total value!\n");
    tol[0] = .001;
    tol[1] = .5 * (PI / 180);
    tol[2] = .02;

    //创建有界平面
    uc1601("创建有界平面1", 1);
    UF_CALL(UF_MODL_create_bplane(ge, tol, &bpobj));
    UF_MODL_free_string_list(ge);

}

void ufusr(char *param, int *retcode, int paramLen)
{
    if (!UF_CALL(UF_initialize()))
    {
        do_ugopen_api();
        UF_CALL(UF_terminate());
    }
}

int ufusr_ask_unload(void)
{
    return (UF_UNLOAD_IMMEDIATELY);
}