【求助】函数UF_MODL_ask_sweep_curves的用法

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【求助】函数UF_MODL_ask_sweep_curves的用法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
2 Z/ c; Q( W8 M3 ^6 c- b( A/ N/////////////////////////////
2 E7 s1 A" y9 y% E9 _' m9 p  拾取对象
7 H4 B/ w9 Z7 O+ |- Y  tag_t three_element;
  opts.other_options=0;
  opts.reserved=NULL;
  opts.num_mask_triples=1;
# A3 ~* M9 o, c" b! J  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;
( i* U- Y$ O) o% h: s# P  irc=UF_UI_select_single(message,&opts,&response,&three_element,cursor,&view);
  UF_DISP_set_highlight(three_element,0);
& J- N$ n* |6 b/ ]  获取对象所属特征tag值
3 |6 N8 m6 Q- W9 v  tag_t three_feature_tag;
: f( h4 W8 D* P+ M( D8 _+ G: D  uf_list_t * feature_tag_list;
- \( G3 C6 u; c! _2 Q9 P  irc=UF_MODL_create_list(&feature_tag_list);
& B3 O; J2 V5 i  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;
/ o* W  j/ Q1 p, B  int gui_number;
  tag_t* pro_tag;
0 _% ^7 A/ r0 V; U3 N' k& W& Z  tag_t* gui_tag;
& w$ E* j2 O* x, l. w( [6 h  irc=UF_MODL_ask_sweep_curves(list_item,&pro_number,&pro_tag,&gui_number,&gui_tag);
& F9 b) h  y+ h6 Y9 c! t2 @//////////////////////////////////