UGNX二次开发源码分享：关于显示UG NX临时箭头功能

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3 A) K( O' [# q& r9 M4 h7 M2 h* y


8 E8 a) D: I' K. p/ |这功能其实很好用，比如选择面，自动显示面的法线等等。

static void do_UGopen_api(void)
  ]% i9 b+ n  R! A) w' o* X{
  double pt1[3] = {0.0, 0.0, 0.0};
  double pt2[3] = {2.0, 2.0, 2.0};
2 R, ^0 y& s' d! P4 h  double pt3[3] = {-2.0,-2.0,-2.0};
  double vect1[3] = {1.0, 1.0, 1.0};
7 y) z: u, K$ {& L$ H% e* V4 t  UF_DISP_conehead_attrb_s attrb;
  UF_DISP_conehead(UF_DISP_ALL_ACTIVE_VIEWS,
                   pt1, vect1, 1);
   /* Example to draw the vector with the base of its staff
      anchored at the origin so that the vector appears to point
* D9 E; X0 `; \. }2 J# @6 e      away from the origin
   */
3 B+ j% I7 x6 x  UF_DISP_conehead(UF_DISP_ALL_ACTIVE_VIEWS,
8 G6 i+ @3 |( p( C                   pt2, vect1, 0);
1 G4 h' K. ]: d4 `; y  UF_DISP_labeled_conehead(UF_DISP_ALL_ACTIVE_VIEWS,
* M+ ~9 n8 E9 t/ r8 R, g8 \$ D1 _                           pt3, vect1, 0, "Normal");
  UF_DISP_get_conehead_attrb(&attrb);
' \) K8 F4 p4 D; v$ n  /* Use color index three */
$ y* n1 S  c- _$ b4 p2 @1 D7 c  attrb.color = 3;
  /* Update the current attribute settings */
  UF_DISP_set_conehead_attrb(&attrb);
  printf("\nCurrent conhead display settings:\n");
  printf("\tLength of Staff: %g\n", attrb.staff_length);
  printf("\tTotal Length: %g\n", attrb.total_length);
  printf("\tRadius of Cone Base: %g\n", attrb.cone_radius);
  printf("\TColor Index: %d\n", attrb.color);
  printf("\tFont Index: %d\n", attrb.font);
  printf("\tDensity Index: %d\n", attrb.density);
}