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【NX二次开发源码分享】Specify Circle 指定一个圆选择屏幕点
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[mw_shl_code=c,true]static void map_arc_center_from_abs(UF_CURVE_arc_t *adata)- _$ g. u" {( G7 ]( P
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int5 E6 l7 F# t) X* `
irc;8 ~$ E' Z2 D( c5 i1 J, d: ?8 n3 h
double2 z3 j* ?! }4 x% \& D6 v
abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 },
; H- h6 f: ~" A- ^) s) ^# [ csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},
+ u# F6 }# _+ \) e! h+ x" z. p mx[12];
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$ i4 g5 }6 P4 G UF_CALL(UF_CSYS_ask_matrix_values(adata->matrix_tag, &csys[3]));, `3 w1 |4 X0 Q! i- v
FTN(uf5940)(abs_mx, csys, mx, &irc);, ~7 [& n h" n
FTN(uf5941)(adata->arc_center, mx);
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static void map_point_to_matrix(tag_t matrix, double *pos)+ z1 t" @. e7 D( m2 ~
{
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double
+ W4 }- h% y6 l0 i! B+ v/ i0 v/ q abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 },
/ G" G8 r$ i1 M8 ~; q csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},
! A5 @9 q2 S. V+ i mx[12];% C( a5 j, `# G* c# ]8 A! y
3 S4 x' j+ V ^7 ?6 I) B! _4 k+ a UF_CALL(UF_CSYS_ask_matrix_values(matrix, &csys[3]));
2 U6 V, G; x! k& r2 y3 n5 s FTN(uf5940)(abs_mx, csys, mx, &irc);
8 y* a5 n# m2 A, m+ q9 A) c, q FTN(uf5941)(pos, mx);. `9 L0 Y; X* Q! d2 f6 C
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/* This motion callback emulates the rubberbanding circle seen when# I$ c: o4 K% [: M0 ]% S; a4 r
using the interactive option Insert->Curve->Basic Curves...->Circle *// ]2 n+ F1 W% H: I ]: H* k; b0 _, Z
5 F. N; K2 |# }3 |7 x! ^" i2 s% c% jstatic void rubberband_circle_cb(double *screen_pos,, P0 X; F, @5 s$ o
UF_UI_motion_cb_data_p_t motion_cb_data, void *client_data): Q9 R4 [) n, j" G" T5 r6 ~" ]6 L
{
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UF_CURVE_arc_p_t& @1 s7 {) }5 b% E* L; M
my_data = (UF_CURVE_arc_p_t) client_data;5 F% a; }- h* a" z$ D0 t' f
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map_point_to_matrix(my_data->matrix_tag, screen_pos);- o* e) V5 U9 x& W6 c1 @
UF_VEC3_distance(my_data->arc_center, screen_pos, &my_data->radius);
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% ?% `) M! n. ?( w2 |, x; @ if (my_data->radius > 0)
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0 p/ u! }0 H$ ]8 r5 {& m7 R# d6 L UF_CALL(UF_CSYS_ask_matrix_values(my_data->matrix_tag, axes));
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/ a! m- L7 L7 p9 ~" C; K1 { UF_CALL(UF_DISP_display_ogp_circle(motion_cb_data->view_tag,0 z0 a9 [& }5 |' D
axes, my_data->arc_center, my_data->radius));5 o8 P' k6 w; e! I
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static logical specify_circle(char *prompt, UF_CURVE_arc_p_t the_data)4 H% e. @+ A2 i- c
{
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6 |) y" \ Q. M. w/ M& | tag_t2 s* v A" _: q0 U9 g3 e D
view;6 o0 `% F0 |5 v# [$ @1 E
char
, M! }+ P9 }. Z9 b& a3 ]- L msg[133];" s9 m$ Q+ T( s- M
double
3 O! X& d+ r4 v; f% |/ ?5 \ on_arc[3];: v" b1 Q# B, w4 k: o" V" {3 k
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sprintf(msg, "%s center", prompt);. _. Q8 x9 K1 s8 O! \& |
UF_CALL(UF_UI_specify_screen_position(msg, NULL, NULL,8 N6 ]! d& w+ B Y- N" J3 w
the_data->arc_center, &view, &resp));; }, ~* G* P# [/ o# q6 T
if (resp != UF_UI_PICK_RESPONSE) return FALSE;
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the_data->matrix_tag = ask_wcs_matrix_tag();
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sprintf(msg, "%s point on arc", prompt);0 u _0 }( t* _
UF_CALL(UF_UI_specify_screen_position(msg, rubberband_circle_cb,
& H: ?- R8 R/ b: L6 M (void *)the_data, on_arc, &view, &resp));! U& o0 v k$ G" n! f7 j
if (resp != UF_UI_PICK_RESPONSE) return FALSE;
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# H4 Y% Q+ E* Q) t& e map_point_to_matrix(the_data->matrix_tag, on_arc);7 H4 x; S/ _( W( ~
5 M# F# W7 D1 G: D, | UF_VEC3_distance(the_data->arc_center, on_arc, &the_data->radius);
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return TRUE;4 a# _1 U8 G6 N) v
}[/mw_shl_code]# _8 Y3 o( [* ^5 r6 K
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