UGNX二次开发源码分享：关于显示UG NX临时箭头功能

admin

7 |- q* u& s/ R# m- ]- j
. T: m7 m/ ~: I( ~# g3 W
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)
  V6 z9 B, N4 [/ d% u/ @: L{
: \, v# x% P0 d/ ?: Z. K( M  double pt1[3] = {0.0, 0.0, 0.0};
  double pt2[3] = {2.0, 2.0, 2.0};
  double pt3[3] = {-2.0,-2.0,-2.0};
: R/ e5 l1 y9 M" s* p, p  double vect1[3] = {1.0, 1.0, 1.0};
  UF_DISP_conehead_attrb_s attrb;
  UF_DISP_conehead(UF_DISP_ALL_ACTIVE_VIEWS,
9 H0 L- G' J% e! U& M7 ?, i/ d                   pt1, vect1, 1);
( s( W0 R' k# O) ^4 h) }0 R   /* Example to draw the vector with the base of its staff
% i  A9 M9 g" z9 a" ?      anchored at the origin so that the vector appears to point
      away from the origin
   */
  UF_DISP_conehead(UF_DISP_ALL_ACTIVE_VIEWS,
, v( L+ F# O# f4 g0 e- ]$ ^                   pt2, vect1, 0);
; j3 V( p- F. A) C  g1 p  UF_DISP_labeled_conehead(UF_DISP_ALL_ACTIVE_VIEWS,
; v3 N- B; g( `+ S+ l                           pt3, vect1, 0, "Normal");
  UF_DISP_get_conehead_attrb(&attrb);
  /* Use color index three */
  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);
; _3 i% _/ V* ?# E" y8 m& H0 c# n3 _# O  printf("\tFont Index: %d\n", attrb.font);
4 s! p" r: [7 e9 W' y. c% {  printf("\tDensity Index: %d\n", attrb.density);
}
5 e# m' O. n* d
9 K4 q4 j7 {/ U7 \& R# N# W