急问，那位大侠告知怎样在UG用程序创建扫描体？

hustcad

以下是实现的代码，不能创建成功，那位大侠指点一二？？急盼！！！！！
首先，我通过程序画出了5条截面线和3根导线，然后做了一个扫描实体的程序代码，拷贝如下，请各位大虾帮忙找问题：  
  /*----------------------------------------------------------*/  
  /*[说明]:扫描创建实体  
    /*----------------------------------------------------------*/  
     
   
  
  UF_MODL_init_string_list([$s_guide)]  
  UF_MODL_create_string_list(3,3,[$s_guide)]  
  s_guide.num = 3;  
  for(i=0;i<3;i++)  
  {  
    s_guide.string = 1;  
    s_guide.dir = 1;  
    s_guide.id = guideLine_tag;  
  }  
  
  UF_MODL_init_string_list([$s_section)]  
  UF_MODL_create_string_list(5,5,[$s_section)]  
  s_section.num = 5;  
  for(i=0;i<5;i++)  
  {  
    s_section.string = 1;  
    s_section.dir = 1;  
    s_section.id = spline_tag;  
  }   
  alignment = 1;//Alignment method:  
    = Parameter  
    = Arc Length  
  
  inter = 2;//Interpolation method (for s_section->num > 1):  
    = Linear  
    = Cubic  
  
  body_type =0;//Type of body:  
                  = Sheet (Default)  
    = Solid  
  boolean =UF_NULLSIGN;//The sign of the operation to be performed.  
                         // UF_NULLSIGN = create new target solid  
             //UF_POSITIVE = add to target solid  
             //UF_NEGATIVE = subtract from target solid  
             //UF_UNSIGNED = intersect with target solid  
  //Tolerances:  
  tol[0] = 0.025;//[0] = Distance      
  tol[1] = 0.2; //[1] = Angle (in radians)  
  tol[2] = 0.1; //[2] = Intersection  
    
  UF_MODL_create_sweep(&s_guide, //UF_STRING_p_t s_guide,  
     &s_section, //UF_STRING_p_t s_section,  
             NULL, //UF_STRING_p_t s_spine,  
             NULL, //UF_METHOD_p_t orientation,  
             NULL, //UF_METHOD_p_t scaling,               
             &alignment, //int * alignment,  
             &inter, //int * inter,  
             &body_type, //int * body_type,  
             boolean, // UF_FEATURE_SIGN boolean,  
             tol, //double tol[ 3 ],  
             [$body_obj_id)]//tag_t * body_obj_id