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2 e; k1 { ^/ B% r! E3 g2 W【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)8 B: A( C( H1 ?& |! S
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int
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double: B' }$ A) ~- B7 S5 z
abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 },: K6 {2 c2 U/ L) a# p3 t# ?
csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},/ z: B. v9 ~- g% w/ d
mx[12];
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' H" O. O" X0 w UF_CALL(UF_CSYS_ask_matrix_values(adata->matrix_tag, &csys[3]));- T, [5 H# P4 C
FTN(uf5940)(abs_mx, csys, mx, &irc);- y" j0 W1 q9 o- z+ e2 L+ i- i
FTN(uf5941)(adata->arc_center, mx);
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- x' c, `) _! ], k- [; L$ h0 x& h- Gstatic void map_point_to_matrix(tag_t matrix, double *pos)
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4 Q0 Q6 s- `0 @ int
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double
( s8 [$ [8 j8 ?4 y" J/ D abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 },4 M1 X) g3 f+ S c; x- T4 N5 g
csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0}, S/ d- ?; S- R$ E
mx[12];
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3 U N: k: Q4 {& _( \: z UF_CALL(UF_CSYS_ask_matrix_values(matrix, &csys[3]));3 X8 I$ i8 V9 V2 b P% V
FTN(uf5940)(abs_mx, csys, mx, &irc);+ L) v: Q0 e: K) D4 V
FTN(uf5941)(pos, mx);/ F& n L) a( ?. }3 k
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) ?4 ]* G# v0 V- ~) b/* This motion callback emulates the rubberbanding circle seen when
& L& X/ Q8 [& x5 O) H using the interactive option Insert->Curve->Basic Curves...->Circle */
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c7 b- f% A+ c& Hstatic void rubberband_circle_cb(double *screen_pos,6 |% T! ]; u) w/ Y6 f
UF_UI_motion_cb_data_p_t motion_cb_data, void *client_data): a0 z! a. }/ m) T
{
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UF_CURVE_arc_p_t
& P! U9 m5 o6 M' |( f my_data = (UF_CURVE_arc_p_t) client_data;
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map_point_to_matrix(my_data->matrix_tag, screen_pos);
- m* |+ P! a7 ], s UF_VEC3_distance(my_data->arc_center, screen_pos, &my_data->radius);, P* T8 U) _6 M0 v/ i- \
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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));( N! ?8 u2 I& b, |" `
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UF_CALL(UF_DISP_display_ogp_circle(motion_cb_data->view_tag,; `+ z5 c% H; V5 Z+ z: u
axes, my_data->arc_center, my_data->radius));
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}
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8 z2 _0 p' S: D( r; X' }static logical specify_circle(char *prompt, UF_CURVE_arc_p_t the_data)
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9 U5 p6 S/ X# m7 S. i9 B/ M! } resp;
( A- |' q H" I& r' j! ] tag_t, t/ u7 E% [/ a6 e8 Y4 q6 j% J' i
view;
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msg[133];
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on_arc[3];2 ^3 `6 k6 D" G: q
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sprintf(msg, "%s center", prompt);
/ v- b; f& a) i/ Z' A; M; [ UF_CALL(UF_UI_specify_screen_position(msg, NULL, NULL,
$ i+ q, p# a9 j% x% n/ i the_data->arc_center, &view, &resp));
$ e6 N6 C7 P c' l1 U$ W if (resp != UF_UI_PICK_RESPONSE) return FALSE;- h$ J- j. N6 U) n/ X, q7 Z
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the_data->matrix_tag = ask_wcs_matrix_tag();$ p, f4 S* z; P( F% w. ` [
map_arc_center_from_abs(the_data);" ?) [8 B* f1 |- [" d% D
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sprintf(msg, "%s point on arc", prompt);
( H E# r+ L2 e; b4 f' U9 `/ } UF_CALL(UF_UI_specify_screen_position(msg, rubberband_circle_cb,. o' C+ S; q$ y+ j, P" i& i8 K
(void *)the_data, on_arc, &view, &resp));
9 s2 S! @" }9 m$ K 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);
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return TRUE;
5 T4 F" T! Q3 ~}[/mw_shl_code]
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