【求助】函数UF_MODL_ask_sweep_curves的用法

my_dear2002

目的获取拉伸对象的拉伸曲线调用UF_MODL_ask_sweep_curves函数怎么老出错
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  拾取对象
  tag_t three_element;
  opts.other_options=0;
  opts.reserved=NULL;
  opts.num_mask_triples=1;
  opts.mask_triples=&mask;
  opts.mask_triples->object_type=UF_solid_type;//UF_face_type;
  opts.mask_triples->object_subtype=UF_solid_body_subtype;//UF_bounded_plane_subtype;
  opts.mask_triples->solid_type=UF_UI_SEL_FEATURE_BODY;//UF_UI_SEL_FEATURE_ANY_FACE;
  opts.scope=UF_UI_SEL_SCOPE_WORK_PART;//UF_UI_SEL_SCOPE_ANY_IN_ASSEMBLY;
  irc=UF_UI_select_single(message,&opts,&response,&three_element,cursor,&view);
  UF_DISP_set_highlight(three_element,0);
  获取对象所属特征tag值
  tag_t three_feature_tag;
  uf_list_t * feature_tag_list;
  irc=UF_MODL_create_list(&feature_tag_list);
  irc=UF_MODL_ask_body_feats(three_element,&feature_tag_list);
  tag_t list_item;
  irc=UF_MODL_ask_list_item(feature_tag_list,0,&list_item);
  获取拉伸曲线
  int pro_number;
  int gui_number;
  tag_t* pro_tag;
  tag_t* gui_tag;
  irc=UF_MODL_ask_sweep_curves(list_item,&pro_number,&pro_tag,&gui_number,&gui_tag);
//////////////////////////////////

my_dear2002