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7 U& b% U: y. G! m+ o【NX二次开发源码分享】Specify Circle 指定一个圆选择屏幕点0 |5 e/ {, b7 R9 n7 L7 g! d; j
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[mw_shl_code=c,true]static void map_arc_center_from_abs(UF_CURVE_arc_t *adata); h; D6 \( z2 L U" x
{
$ m u* Q; K! d C% l4 l int
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double2 W5 [0 F. l" t* x1 P- `/ m
abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 },0 N( j( ?' L& j2 w, H) \! u
csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},8 g+ I9 Z$ _3 r5 A" L6 K
mx[12];. H0 [6 Y: D3 i; Y1 K- u
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UF_CALL(UF_CSYS_ask_matrix_values(adata->matrix_tag, &csys[3]));+ h V2 r* b5 q( O% d
FTN(uf5940)(abs_mx, csys, mx, &irc);0 {( @# b$ `$ `! e4 p, v( T" O
FTN(uf5941)(adata->arc_center, mx);
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( u. e3 E: O: Z4 { Y; P" Ostatic void map_point_to_matrix(tag_t matrix, double *pos)3 n$ e) @% Y1 B; _
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int
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double
, a' ^ O7 m/ g/ ? abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 },
! y5 N2 t' N8 ~ csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},
% A: U8 k: G1 b& W mx[12];/ o% k) c0 z5 Q& O0 J/ F
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UF_CALL(UF_CSYS_ask_matrix_values(matrix, &csys[3]));
* S" ]- v0 Y. Y1 m FTN(uf5940)(abs_mx, csys, mx, &irc);
9 {" ?7 c! w* _1 F FTN(uf5941)(pos, mx);
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, i+ n+ R+ y% c/ L/ ?# N& q; ?! W* P/* This motion callback emulates the rubberbanding circle seen when( g2 |7 _5 j* @: n/ E
using the interactive option Insert->Curve->Basic Curves...->Circle */* b4 ?- h5 l( X* U7 m
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static void rubberband_circle_cb(double *screen_pos,
% m0 V# H( b* N UF_UI_motion_cb_data_p_t motion_cb_data, void *client_data)
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double
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UF_CURVE_arc_p_t# Z, z9 u4 n% P, s! f
my_data = (UF_CURVE_arc_p_t) client_data;
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map_point_to_matrix(my_data->matrix_tag, screen_pos);, u+ P7 k _* |9 S
UF_VEC3_distance(my_data->arc_center, screen_pos, &my_data->radius);
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if (my_data->radius > 0)
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UF_CALL(UF_CSYS_ask_matrix_values(my_data->matrix_tag, axes));
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7 X0 B' ?. y z: g8 o$ \/ { UF_CALL(UF_DISP_display_ogp_circle(motion_cb_data->view_tag,! M: I; q. c: f d6 |3 y" k* t
axes, my_data->arc_center, my_data->radius));: E" G. t4 A" L% O% }
}
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static logical specify_circle(char *prompt, UF_CURVE_arc_p_t the_data)
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int$ H8 R# Z3 W$ D& B& R* X
resp;
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view;3 Z) `) a- N) x6 W8 V7 D9 U- z
char
' O& G$ C" `5 S6 h# S msg[133];
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on_arc[3];
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sprintf(msg, "%s center", prompt); S1 r! v9 E" Q* t# t9 F
UF_CALL(UF_UI_specify_screen_position(msg, NULL, NULL,/ `# k! _+ \5 S* G0 n. y. m. Z2 }" }
the_data->arc_center, &view, &resp));
, |" K: o2 P9 i; `# _/ S if (resp != UF_UI_PICK_RESPONSE) return FALSE;. N7 K2 n0 B( e( B
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the_data->matrix_tag = ask_wcs_matrix_tag();
. h- [6 J9 }8 n' G- O4 |' S! v3 T map_arc_center_from_abs(the_data);
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' Z& y$ K+ ?! v7 R9 b sprintf(msg, "%s point on arc", prompt);
, H7 Y- ?7 i, X" C" _* y9 K2 j* b& u UF_CALL(UF_UI_specify_screen_position(msg, rubberband_circle_cb,9 N0 H1 M. \; P- D. t
(void *)the_data, on_arc, &view, &resp));
3 C7 C; Q s) h5 P( m% I if (resp != UF_UI_PICK_RESPONSE) return FALSE;
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map_point_to_matrix(the_data->matrix_tag, on_arc);
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- o3 L, f' A; N UF_VEC3_distance(the_data->arc_center, on_arc, &the_data->radius);9 O" V( q. _8 ~. _% n5 G+ B& `
2 z+ \; j' J/ m) h) v& m0 @ return TRUE;
% ~6 B* J1 w, t/ ?# ^3 ^$ B7 J}[/mw_shl_code]
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