【求助】turb的中心线如何重新定义?盼!

liusonglin

请教各位高手:
在应用UG_function编程中,我做了line1,line2两条线,利用line1做了turb特征,想用line2替换line1重新定义turb的中心线,但使用
UF_MODL_replace_sweep_curve或UF_MODL_edit_sweep_curve无法完成?  Unigraphics Startup
//      This entry point activates the application at Unigraphics startup
extern "C" DllExport void ufsta( char *param, int *returnCode, int rlen )
{
    /* Initialize the API environment */
    int errorCode = UF_initialize();
  
    if ( 0 == errorCode )
    {
        /* TODO: Add your application code here */
    
    tag_t line1,line2;
    UF_CURVE_line_t sline1,sline2;
    sline1.start_point[0]=0;
    sline1.start_point[1]=0;
    sline1.start_point[2]=0;
    sline1.end_point[0]=0;
    sline1.end_point[1]=100;
    sline1.end_point[2]=0;
    UF_CURVE_create_line([$sline1,&line1)]
  
    sline2.start_point[0]=0;
    sline2.start_point[1]=0;
    sline2.start_point[2]=0;
    sline2.end_point[0]=100;
    sline2.end_point[1]=100;
    sline2.end_point[2]=0;
    UF_CURVE_create_line([$sline2,&line2)]
  
    uf_list_p_t path_list, turb_feature_list ;
        char * turb_limit[2]={"13","0"};  
  
        UF_MODL_create_list([$path_list)]  
        UF_MODL_put_list_item(path_list,line1);   
        UF_MODL_create_tube ( path_list,turb_limit,UF_NULLSIGN, [$turb_feature_list )]
  
  int n_eids;
  tag_t *eids  ;
    tag_t turb_feature_id,turb_obj_id;
    UF_MODL_ask_list_item(turb_feature_list,0,[$turb_feature_id)]
    UF_MODL_ask_feat_object (turb_feature_id,[$n_eids,&eids)]
       
    int i;
        
    
    turb_obj_id=eids[0];
  
       int n_pro,n_guid;
    tag_t *pro,*guide;
    UF_MODL_ask_sweep_curves(turb_obj_id,[$n_pro,&pro,&n_guid,&guide)]
  
       for (i=0;i<n_guid;i++)
    {UF_DISP_set_highlight(guide,1);}
    
  
  int rr;
  
  
  rr=  UF_MODL_replace_sweep_strings (turb_feature_id,
                 0,NULL,
                 0,NULL,
                 n_guid,guide,
                   1,[$line2)]
/*rr=UF_MODL_edit_sweep_curves (turb_obj_id,0,NULL,0,NULL,n_guid,guide,n_guid,[$line2)]  */
   
  rr=UF_UI_open_listing_window ( );
  if(rr==0)
    UF_UI_write_listing_window("success\n");
  else
  {UF_UI_write_listing_window("unsuccess\n");
  return;
  }