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8 D; o# j* `- X2 J1 U【NX二次开发源码分享】Specify Circle 指定一个圆选择屏幕点8 J/ C5 v% p/ p; C
' N. F* ?* x! K9 A5 p+ v[mw_shl_code=c,true]static void map_arc_center_from_abs(UF_CURVE_arc_t *adata)
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4 u9 i* E9 l& g( q int
0 ]) C) l/ D! h2 c irc;+ m% f; R, @/ t2 Z/ K& y
double9 M" T" @/ |# L2 f
abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 },; ?0 Z! H5 [ \! v1 Z- b
csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},
7 \. `. N; o' W mx[12];
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UF_CALL(UF_CSYS_ask_matrix_values(adata->matrix_tag, &csys[3]));' z6 c( U" d h/ E- @. A) \0 Y
FTN(uf5940)(abs_mx, csys, mx, &irc);1 o D% S7 o1 v2 k
FTN(uf5941)(adata->arc_center, mx);
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4 z5 z. j2 m7 U$ O3 g) X7 D# Bstatic void map_point_to_matrix(tag_t matrix, double *pos)
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irc;
8 M/ ~6 t S. V, X1 B double
) y( G. P' X, d& Q! c- ~, U1 M abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 }," x/ g& Q8 k* [) l1 a
csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},
" T0 l7 J- Q c* c5 z mx[12];5 L3 W, I- a3 u# ~8 A
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UF_CALL(UF_CSYS_ask_matrix_values(matrix, &csys[3]));. |& N! b: L" I' W, \) w
FTN(uf5940)(abs_mx, csys, mx, &irc);
% o1 {: i9 G+ _7 F FTN(uf5941)(pos, mx);
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/* This motion callback emulates the rubberbanding circle seen when- n: [2 J0 p! q |
using the interactive option Insert->Curve->Basic Curves...->Circle *// a( ?: ~# N+ H/ X# I* ?
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static void rubberband_circle_cb(double *screen_pos,
! t, w% x, G( @6 W/ R+ t9 }0 A" E UF_UI_motion_cb_data_p_t motion_cb_data, void *client_data). d; T' ]% q, w3 x: o& F/ t
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double+ @9 o, d3 A& S8 ~# k, B
axes[9];* Y' t7 z, L: b$ E' }* T2 G
UF_CURVE_arc_p_t
+ U- I4 m1 m2 c my_data = (UF_CURVE_arc_p_t) client_data;
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) B% l- P9 @: q/ e }% O) @) F map_point_to_matrix(my_data->matrix_tag, screen_pos);
) |. M! g9 g5 e6 c% V2 F UF_VEC3_distance(my_data->arc_center, screen_pos, &my_data->radius);; [3 | q) [ _! o
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if (my_data->radius > 0): ]. S& g( G# k% ?$ K
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UF_CALL(UF_CSYS_ask_matrix_values(my_data->matrix_tag, axes));, p) q( d5 q' [* F# `3 ?) q C3 g! A
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UF_CALL(UF_DISP_display_ogp_circle(motion_cb_data->view_tag,
! B/ j, [3 I6 J O# r& _ axes, my_data->arc_center, my_data->radius));
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static logical specify_circle(char *prompt, UF_CURVE_arc_p_t the_data)- h9 }8 _* `) E9 ~& c
{% @- F$ K" ?; v, A+ ^
int% i4 @+ N6 T& E- G1 H( T
resp;5 B6 y* N2 O- }1 S# k/ n9 P; w, P) ~, W
tag_t8 \! x: y2 x& x' K- \
view;
6 ]: V% u8 R: n" Q char
$ Q" g! D5 |8 q" R S( f4 t* {5 t msg[133];! `9 @, _( |2 z6 W1 L4 g
double
# H; O7 v8 j& }5 |" q) W on_arc[3];
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sprintf(msg, "%s center", prompt);
* T$ D. w( C* ] i Q" z# _7 `4 g UF_CALL(UF_UI_specify_screen_position(msg, NULL, NULL,
/ U7 k0 T5 x+ T* i' Q) j i the_data->arc_center, &view, &resp));
" k. B: R: g0 a if (resp != UF_UI_PICK_RESPONSE) return FALSE;5 l3 S- H3 e5 R2 l. s/ _: H
# W) v( y; T1 M# w& T9 Y- q the_data->matrix_tag = ask_wcs_matrix_tag();9 o" _% R/ U) s1 A$ ~4 b" f
map_arc_center_from_abs(the_data);
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. a, ^' n9 c2 t( U6 V sprintf(msg, "%s point on arc", prompt);
* s8 w6 ~! F1 A2 Y/ l& a# t: c4 S UF_CALL(UF_UI_specify_screen_position(msg, rubberband_circle_cb,
" o {/ D7 {/ ^. ^7 k1 k! a( \ (void *)the_data, on_arc, &view, &resp));
" e9 X' S+ p' H$ S1 p. A4 [ if (resp != UF_UI_PICK_RESPONSE) return FALSE;4 n+ `, R4 M& z" K' F
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map_point_to_matrix(the_data->matrix_tag, on_arc);
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5 B1 U( e! _" o& f6 N, ~. m UF_VEC3_distance(the_data->arc_center, on_arc, &the_data->radius);
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: \/ } T- ~+ ]0 y$ O1 c) Q return TRUE;0 t7 n6 @7 i; U( c! E1 v
}[/mw_shl_code]
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