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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2 e4 p. ^! F$ h) H这功能其实很好用，比如选择面，自动显示面的法线等等。

: G+ A9 t; ^& g/ A. m0 [! E. V. x: Jstatic void do_UGopen_api(void)
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; e6 d  \; \1 ]* \, g& x& _  double pt1[3] = {0.0, 0.0, 0.0};
' Y5 k: ]( `$ S& L; W  double pt2[3] = {2.0, 2.0, 2.0};
  double pt3[3] = {-2.0,-2.0,-2.0};
& w% p6 P. X. i  double vect1[3] = {1.0, 1.0, 1.0};
  UF_DISP_conehead_attrb_s attrb;
2 H' n/ _; z4 c! j. |7 z  x5 F  UF_DISP_conehead(UF_DISP_ALL_ACTIVE_VIEWS,
                   pt1, vect1, 1);
7 ^$ T( A/ Z. R   /* Example to draw the vector with the base of its staff
& d  L( A# T1 P8 A      anchored at the origin so that the vector appears to point
5 }: w" b3 K, J      away from the origin
   */
  UF_DISP_conehead(UF_DISP_ALL_ACTIVE_VIEWS,
5 ?5 D1 M% {. [                   pt2, vect1, 0);
  UF_DISP_labeled_conehead(UF_DISP_ALL_ACTIVE_VIEWS,
3 F8 a5 @; @3 S0 ]( Y. ?* O, ?                           pt3, vect1, 0, "Normal");
  UF_DISP_get_conehead_attrb(&attrb);
1 f5 }; P6 R2 M* t, H8 _4 K* x  /* Use color index three */
  attrb.color = 3;
  /* Update the current attribute settings */
  UF_DISP_set_conehead_attrb(&attrb);
  printf("\nCurrent conhead display settings:\n");
, T; _& }, |$ D7 `$ X$ J2 O* I  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);
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