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% Y. z/ x# Z) N; k1 g【NX二次开发源码分享】Specify Circle 指定一个圆选择屏幕点. c) w( \5 V; O; |+ V' Z
7 H7 [8 t1 P) e[mw_shl_code=c,true]static void map_arc_center_from_abs(UF_CURVE_arc_t *adata)3 A$ j* g) P# i% f4 |
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int/ h( A; u8 G9 X: g' T' w
irc;
: D. t! o7 J6 [ double( D9 J/ H+ ]8 ~3 G; i3 X$ t* \
abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 },% m; P# _# _$ n; V7 R! [" F$ j* v
csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},
1 U* B3 c/ b) C: [, Y% G mx[12];3 e# j% V- `/ U/ b4 u4 j
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UF_CALL(UF_CSYS_ask_matrix_values(adata->matrix_tag, &csys[3]));3 F6 I6 P4 B* f; v( K; B6 I
FTN(uf5940)(abs_mx, csys, mx, &irc);! s$ E1 @' |( j
FTN(uf5941)(adata->arc_center, mx);$ q/ ?, @2 }; h0 ~! S ^
}; o; l& z) a) [. S! ~
6 ?2 n, Q; E5 ^0 Jstatic void map_point_to_matrix(tag_t matrix, double *pos)1 H# t8 q0 }3 w# W H
{
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irc;
. A1 \4 ?7 e* G0 q, j- t double) I+ ]" k/ j/ _% W( t5 {3 m& L
abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 },; g. ]8 |2 q) ^' E! ~/ j
csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},3 o4 p/ v' B a4 P
mx[12];7 T: a/ L- g4 ~9 Z: ?' p0 D7 B
' e9 t: C% d7 g4 q9 y { UF_CALL(UF_CSYS_ask_matrix_values(matrix, &csys[3]));
+ I" N% v+ N. R8 f4 J7 o m FTN(uf5940)(abs_mx, csys, mx, &irc);/ L8 a& P+ ? [" b% `
FTN(uf5941)(pos, mx);" R' [5 m3 I0 N+ j, `0 g
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/* This motion callback emulates the rubberbanding circle seen when
2 q& [5 H2 W( P5 K v+ N using the interactive option Insert->Curve->Basic Curves...->Circle */8 O1 P( p, \' J9 D) e7 P+ y- C$ M
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static void rubberband_circle_cb(double *screen_pos,
& h1 f" E$ _% p, _ UF_UI_motion_cb_data_p_t motion_cb_data, void *client_data)
( {4 n+ Y* v; O4 n$ {{
" {3 X, }0 `, }8 `; }" f/ _* k double. U0 C3 b% _4 Z2 P' O
axes[9];
5 E- J- i5 a. k7 D. k UF_CURVE_arc_p_t U% ?( k; z+ F# r
my_data = (UF_CURVE_arc_p_t) client_data;; z) w5 {9 a& r/ h) z' G7 v
. T& E; B) R% V/ _& ` map_point_to_matrix(my_data->matrix_tag, screen_pos);, A- M9 M' |6 g d% m7 B
UF_VEC3_distance(my_data->arc_center, screen_pos, &my_data->radius);
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1 ^2 b. C4 ]( k if (my_data->radius > 0)
2 U& f e( k- K, I+ w {
# \' ` q3 ]8 g+ }" v( p UF_CALL(UF_CSYS_ask_matrix_values(my_data->matrix_tag, axes));; v* @! H/ [$ Z- Y0 o/ J8 e
3 [0 W3 w p2 {/ M7 m; r, B: _5 Y UF_CALL(UF_DISP_display_ogp_circle(motion_cb_data->view_tag,% @0 H) ]. Q! m( b2 V' C; M1 R
axes, my_data->arc_center, my_data->radius));4 d1 }& h" ?: g3 O$ a' S
}
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static logical specify_circle(char *prompt, UF_CURVE_arc_p_t the_data)1 |0 l) g+ E" Q O4 U3 F7 D
{
4 d; [& X: V! V4 `) Z int
& S. H: v' L. ~# L3 q1 b resp;5 M: `* p$ a( x0 z
tag_t+ x# ~$ s; ^8 O+ y# R7 D/ r
view;7 A$ U8 _; u; r3 } W+ W
char
- b: p9 U7 b; k4 N' @ msg[133];
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on_arc[3];
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sprintf(msg, "%s center", prompt);
5 \$ V1 a% \4 m% ` UF_CALL(UF_UI_specify_screen_position(msg, NULL, NULL,
+ W( U* Q: w+ U% C! @ the_data->arc_center, &view, &resp)); j8 y0 i1 v0 \1 Q2 {, r
if (resp != UF_UI_PICK_RESPONSE) return FALSE;
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5 C, y$ M' H% G: d the_data->matrix_tag = ask_wcs_matrix_tag();3 p" w) h2 C/ s( _
map_arc_center_from_abs(the_data);+ J+ P ~: q2 S7 a% ?+ p5 E
! E/ U; z" t# G) W% D3 H sprintf(msg, "%s point on arc", prompt);' o& G5 {! d) {2 P' P
UF_CALL(UF_UI_specify_screen_position(msg, rubberband_circle_cb,' T/ j! ~+ y* ^ M
(void *)the_data, on_arc, &view, &resp));
6 j; h6 m; v; B1 K if (resp != UF_UI_PICK_RESPONSE) return FALSE;
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map_point_to_matrix(the_data->matrix_tag, on_arc);5 I% U; I- ^: @6 u2 J+ O8 J! M
, L+ e- ~/ q- M# K0 B UF_VEC3_distance(the_data->arc_center, on_arc, &the_data->radius);
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return TRUE;
5 x$ z; X2 ]9 i& T+ B R$ a}[/mw_shl_code]( O( a3 e: G- ]+ m7 ?0 ^, g& I4 n1 {
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