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/ W& Y1 p* u: Z, r【NX二次开发源码分享】Specify Circle 指定一个圆选择屏幕点; D! Z9 \' a9 V0 ^
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[mw_shl_code=c,true]static void map_arc_center_from_abs(UF_CURVE_arc_t *adata)
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int
3 N2 l( j1 [" X$ } irc;1 g. H% o) x. o6 I4 w2 _$ D
double
8 P, V2 S& E- p abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 },& c0 E3 q1 Z, c. D: M
csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},4 |' w( C2 ^+ @. o
mx[12];
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UF_CALL(UF_CSYS_ask_matrix_values(adata->matrix_tag, &csys[3]));
( u. v; e- r. }8 o' b G; X$ h FTN(uf5940)(abs_mx, csys, mx, &irc);6 ^0 Z }: d# S ]; b t8 ?3 i
FTN(uf5941)(adata->arc_center, mx);. p6 O# ~- _1 r6 _( k3 @
}
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static void map_point_to_matrix(tag_t matrix, double *pos)8 L5 u: y% R( {0 V0 @5 W, ^
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int
1 R5 U0 p; `; [0 ~' b) M) f irc;
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abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 },5 X8 v1 c- h1 S8 o! N4 \
csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},
) s+ I4 Q# F2 s! n2 V mx[12];
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# b/ x0 \; A: F2 M; K UF_CALL(UF_CSYS_ask_matrix_values(matrix, &csys[3]));
; p+ p6 t6 t7 z+ u0 ^ FTN(uf5940)(abs_mx, csys, mx, &irc);1 L. }0 z$ Y( t/ ~* b8 X
FTN(uf5941)(pos, mx);9 _9 T+ H/ ^( h/ I6 N
}
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6 h- N( P4 r+ d" L8 E/* This motion callback emulates the rubberbanding circle seen when0 u9 N0 P5 s3 E( l; K* v- y
using the interactive option Insert->Curve->Basic Curves...->Circle */, ?" @; @% ?- r- P* M8 D
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static void rubberband_circle_cb(double *screen_pos,
5 h, {- X+ U8 z9 O `7 J UF_UI_motion_cb_data_p_t motion_cb_data, void *client_data)
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. Y* R O2 a$ B' o axes[9];
' ]6 M0 f1 R* }! p) J2 [ UF_CURVE_arc_p_t
9 c* t. H$ [7 G0 J my_data = (UF_CURVE_arc_p_t) client_data;3 P4 L- |2 R& r9 j
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map_point_to_matrix(my_data->matrix_tag, screen_pos);
0 L$ Z k0 a8 C8 t/ w/ } UF_VEC3_distance(my_data->arc_center, screen_pos, &my_data->radius);
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% r6 ?- o! e* G. V$ `- [3 f/ @/ X6 ? if (my_data->radius > 0)
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UF_CALL(UF_CSYS_ask_matrix_values(my_data->matrix_tag, axes));4 \$ f9 @, c& O$ M+ D4 W
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UF_CALL(UF_DISP_display_ogp_circle(motion_cb_data->view_tag,1 h3 F6 M! Z! V+ {
axes, my_data->arc_center, my_data->radius));" Q7 C- S6 P2 g9 c0 ?" p, s
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static logical specify_circle(char *prompt, UF_CURVE_arc_p_t the_data); K* R0 V, s+ i) z% E2 O
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resp;6 C9 X$ Z2 }4 a1 m+ p* b: X
tag_t
/ i d- q; c5 f7 ^1 i view;8 |+ d" }/ ?; R+ {- t; ~3 S$ X
char0 M' k/ }$ }# d; x l! t
msg[133];
6 _$ Y P! `& a( ] double
3 y/ H9 g. k2 ]) h on_arc[3];. J |* ?. [; w: _/ q, x* D
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sprintf(msg, "%s center", prompt);
, P1 F' }0 r! B* p UF_CALL(UF_UI_specify_screen_position(msg, NULL, NULL,
2 Q" x6 ?* n6 c2 p* A; \ the_data->arc_center, &view, &resp));& h; n. e- M$ A$ M7 C5 c( l
if (resp != UF_UI_PICK_RESPONSE) return FALSE;) X0 P g6 Z+ m j* v3 D0 R/ @) U
8 K4 G8 y. p1 ^0 r. a the_data->matrix_tag = ask_wcs_matrix_tag();$ Y3 W* N( q! O. Q6 ~
map_arc_center_from_abs(the_data);) y/ v; c8 g I" n' s s$ y
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sprintf(msg, "%s point on arc", prompt);7 F" Z6 U2 q( t; |7 M
UF_CALL(UF_UI_specify_screen_position(msg, rubberband_circle_cb,3 X7 q7 Q; X4 v9 K6 M
(void *)the_data, on_arc, &view, &resp));
5 y' ?: R' Y- Q: W$ u# J: P8 H 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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UF_VEC3_distance(the_data->arc_center, on_arc, &the_data->radius);1 e+ O2 x( B+ b8 o0 Y9 Y0 Z
% l1 y8 B7 z; v2 y3 G) c3 Y X return TRUE;
/ f1 L; A; V4 f" N @' U! s" s4 n}[/mw_shl_code]
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