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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; R: r# [4 z4 e( S8 [
这功能其实很好用，比如选择面，自动显示面的法线等等。

* H! {% s9 D+ |# H; Z' O  Ostatic void do_UGopen_api(void)
{
  double pt1[3] = {0.0, 0.0, 0.0};
. ~7 [+ |4 ]% E) e* P3 |1 ~& ~  double pt2[3] = {2.0, 2.0, 2.0};
  double pt3[3] = {-2.0,-2.0,-2.0};
/ r( q+ P+ i' b1 _, \  double vect1[3] = {1.0, 1.0, 1.0};
  UF_DISP_conehead_attrb_s attrb;
) z% |1 `( h3 n; V) l  UF_DISP_conehead(UF_DISP_ALL_ACTIVE_VIEWS,
$ [/ o3 V% A  a. d9 ?! b% j                   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
  Q; ^) x8 c2 O      away from the origin
   */
  UF_DISP_conehead(UF_DISP_ALL_ACTIVE_VIEWS,
                   pt2, vect1, 0);
  UF_DISP_labeled_conehead(UF_DISP_ALL_ACTIVE_VIEWS,
                           pt3, vect1, 0, "Normal");
# g& z* G  G0 Z9 x8 f  UF_DISP_get_conehead_attrb(&attrb);
! W0 P) }4 o1 H/ m) E2 a; p  /* Use color index three */
  attrb.color = 3;
  /* Update the current attribute settings */
9 {" c" s" B( `( O/ _% ^& }  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);
$ {4 @2 i: C) a9 k$ `  printf("\tRadius of Cone Base: %g\n", attrb.cone_radius);
  printf("\TColor Index: %d\n", attrb.color);
4 I) R  {0 d& k# J- a& z1 G  printf("\tFont Index: %d\n", attrb.font);
+ D! J" n/ m7 }, i& z6 P  printf("\tDensity Index: %d\n", attrb.density);
/ ~. b) h! \8 x4 ~}