【求助】ugopen如何选择一条线

使用如下方式,可以选择面  
  UF_UI_selection_options_t opts;
  UF_UI_mask_t mask;
  int response;
  tag_t object, view;
  opts.other_options=0;
  opts.reserved=NULL;
  opts.num_mask_triples=1;
  opts.mask_triples=[$mask]
  
  opts.mask_triples->object_type=UF_face_type;
  
  opts.mask_triples->object_subtype=UF_all_subtype;
opts.mask_triples->solid_type=UF_UI_SEL_FEATURE_ANY_FACE;
  
    opts.scope=UF_UI_SEL_SCOPE_ANY_IN_ASSEMBLY;
int irc=UF_UI_select_single(message, [$opts, &response, &object, cursor, &view)]
  
使用同样的方法,将opts.mask_triples->object_type=UF_face_type;
改为opts.mask_triples->object_type=UF_line_type;
  
来选择线,就不行.请问,改如何才能选到线?

UF_Line_type
UF_SPline_type
...

好像不行了阿。

UG自带的例子，好好看看
  
void ufusr(char *param, int *retcod, int param_len)
{
int irc = 0;
char *message = "Select Object";
UF_UI_selection_options_t opts;
UF_UI_mask_t mask;
int response;
tag_t object, view;
double cursor[3];
char error[133];
int unhighlight=0;
  
UF_initialize();
opts.other_options = 0;
opts.reserved = NULL;
opts.num_mask_triples = 1;
opts.mask_triples = [$mask]
/* set up selectable type, subtype, solid type */
opts.mask_triples->object_type = UF_solid_type;
opts.mask_triples->object_subtype = 0;
opts.mask_triples->solid_type = UF_UI_SEL_FEATURE_BODY;
/* set selection scope to be work part */
opts.scope = UF_UI_SEL_SCOPE_WORK_PART;
irc = UF_UI_select_single(message,&opts,&response,
                          [$object,cursor,&view)]
/* if no error, print information about selected object */
if (!irc)
{
  printf("response= %d, object tag= %d, view tag= %d, cursor
    position= %f %f %f\n", response, object, view, cursor[0],
    cursor[1],cursor[2]);
  /* unhighlight selected object */
  FTN(uf1640)([$object,&unhighlight)]
}
else  /* else get error message */
{
  UF_get_fail_message(irc,error);
  printf("ERROR: %s\n",error);
}
UF_terminate();
}

UF_line_type和UF_spline_type？中间两个字母应该小写吧

这些都没有问题啊,可是为什么我设置了还是不可以啊?
  
  UF_UI_selection_options_t opts;  
  UF_UI_mask_t mask;  
  int response;  
  tag_t object, view;  
  opts.other_options=0;  
  opts.reserved=NULL;  
  opts.num_mask_triples=1;  
  opts.mask_triples=[$mask]  
  
  opts.mask_triples->object_type=UF_edge_type;  
  
  opts.mask_triples->object_subtype=UF_all_subtype;  
opts.mask_triples->solid_type=UF_UI_SEL_FEATURE_ANY_EDGE;  
  
    opts.scope=UF_UI_SEL_SCOPE_ANY_IN_ASSEMBLY;  
int irc=UF_UI_select_single(message, [$opts, &response, &object, cursor, &view)]

直接用UF_edge_type, 0, 0吧。

opts.mask_triples->solid_type=UF_UI_SEL_FEATURE_ANY_EDGE
！！！错误，solid_type只用在solid  type上，其它为0。

能不能将你的那个选择面的程序给我看看，详细的，完整的？谢谢！

十分感谢