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& n1 G9 R* T" a8 p% K: ^% N【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): C$ @8 |- U+ G K+ d
{
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irc;
: V9 n8 [; J; l7 w- i; j3 n double
/ I P0 r: z8 J9 T+ _ abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 },* u2 g6 Y6 q5 P& W' ~% k4 V" J
csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},
. a" w- {, X/ }& {* t/ d mx[12];
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1 y3 y, _& m2 l+ @0 T, x UF_CALL(UF_CSYS_ask_matrix_values(adata->matrix_tag, &csys[3]));
~7 |$ W' S; T. Y& Z FTN(uf5940)(abs_mx, csys, mx, &irc);; F/ @7 m6 i5 w0 _2 C
FTN(uf5941)(adata->arc_center, mx);
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static void map_point_to_matrix(tag_t matrix, double *pos)
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irc;( y9 C1 x) @$ Y9 |9 L
double
- F. i8 C2 G8 n7 p: G* \' a5 s Q# Z5 _ abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 },* ?9 c+ @& r7 `, J4 @9 X2 Z
csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},
$ t6 R8 d& C4 j* S2 m mx[12];$ f! v! \2 @. k) p, j3 B
$ h3 a4 c/ N/ J! K, ?& z UF_CALL(UF_CSYS_ask_matrix_values(matrix, &csys[3]));
' K; V w" A, E- y4 m0 F FTN(uf5940)(abs_mx, csys, mx, &irc);
* U- R4 a7 l. v* r FTN(uf5941)(pos, mx);
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' H; K8 D! G; \/* This motion callback emulates the rubberbanding circle seen when; c# k% O. u7 B
using the interactive option Insert->Curve->Basic Curves...->Circle */4 N/ J- k& t5 J6 K: k, T
; H: \' l! Q9 ]3 nstatic void rubberband_circle_cb(double *screen_pos,2 x0 |- ? d; q1 K' K
UF_UI_motion_cb_data_p_t motion_cb_data, void *client_data)
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double Z. l5 X, q+ i" l. f; K5 V
axes[9];& j3 W" L7 @# E3 K9 d
UF_CURVE_arc_p_t5 c, B, n8 E6 d
my_data = (UF_CURVE_arc_p_t) client_data;. _8 d0 J# T" {
" @0 L# U5 Y/ ] map_point_to_matrix(my_data->matrix_tag, screen_pos);# z% ^5 }( F. b$ n* M
UF_VEC3_distance(my_data->arc_center, screen_pos, &my_data->radius);" A$ X) z1 l8 ]9 H6 ?6 Q6 P
0 M. B- P2 B/ r; ~, i0 G3 \ if (my_data->radius > 0)4 H# n, C- ~4 I
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UF_CALL(UF_CSYS_ask_matrix_values(my_data->matrix_tag, axes));, A% ~6 e" B: p# N a" ^
Q7 \3 }' ?" o: Q! e UF_CALL(UF_DISP_display_ogp_circle(motion_cb_data->view_tag,
) ?" K/ y* B* h axes, my_data->arc_center, my_data->radius));7 Y; j+ [1 n7 G
}
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static logical specify_circle(char *prompt, UF_CURVE_arc_p_t the_data)" N& H. T" q5 x6 Z
{
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resp;
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view;
' l1 C! T4 B2 f char
$ S5 Q: h% ^$ \+ Y% Y msg[133];
9 o+ H' Y* [: i9 l/ c }0 G double, b8 f- N( u" C
on_arc[3];5 E+ Y1 R) b l. E- X* Y8 R: I
( R2 |/ h- g% T! |* G, \1 V1 ^ sprintf(msg, "%s center", prompt);2 ]! o' W8 e3 b7 Y2 z
UF_CALL(UF_UI_specify_screen_position(msg, NULL, NULL,7 n1 {& m1 A. Q% |
the_data->arc_center, &view, &resp));
( C4 @ \; W7 K* }3 f q if (resp != UF_UI_PICK_RESPONSE) return FALSE;/ h1 r$ N6 O# j7 Z
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the_data->matrix_tag = ask_wcs_matrix_tag();
' u5 T2 j! C" k' c# j map_arc_center_from_abs(the_data);
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: x% o. ` f5 o# s, ^9 X+ M9 u G" A sprintf(msg, "%s point on arc", prompt);' t! Y. k* A1 q& Q
UF_CALL(UF_UI_specify_screen_position(msg, rubberband_circle_cb,
/ l' v3 M6 h9 i" q (void *)the_data, on_arc, &view, &resp));
3 H: W ~8 o0 ]' w7 F2 p if (resp != UF_UI_PICK_RESPONSE) return FALSE;
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map_point_to_matrix(the_data->matrix_tag, on_arc);& _8 D! i$ v; k5 A8 ~
7 M) a O5 C- t. d UF_VEC3_distance(the_data->arc_center, on_arc, &the_data->radius);
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return TRUE;* ~* f, A! D% `( f9 D* N+ v& m* g
}[/mw_shl_code]
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