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) f" b Y. Y" \【NX二次开发源码分享】Specify Circle 指定一个圆选择屏幕点. Q: i4 c6 V$ p
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[mw_shl_code=c,true]static void map_arc_center_from_abs(UF_CURVE_arc_t *adata)1 n5 T, r+ \9 I5 a) \
{
3 T8 A% H0 @0 z* d* o int
' Y0 {! A1 {$ O: Q& { irc;: ?1 y) b/ q; }( ^6 l; D# @
double
! ~* T& [# |5 t6 V; H; c z abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 },0 i2 W( e! h+ ?4 c+ a
csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},( Z7 T- E8 F! @! [8 E, E
mx[12];( w) [* }9 m o$ O
, m6 }0 p+ O1 y UF_CALL(UF_CSYS_ask_matrix_values(adata->matrix_tag, &csys[3]));5 [2 Z' b0 L D$ x4 A# L
FTN(uf5940)(abs_mx, csys, mx, &irc);
, m6 |$ n/ ]8 x FTN(uf5941)(adata->arc_center, mx);
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) l# W" k: \ k9 Q* T1 Ustatic void map_point_to_matrix(tag_t matrix, double *pos)
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x. Z8 b! }9 C d int
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double
/ l9 g- H3 S% c& D( F, e abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 },
/ h |8 I8 T& } Q% H: N: q: c. k csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},. I! Z7 B% W% L$ z6 t3 H
mx[12];
6 {# B$ D1 N. {. d r$ [
1 \$ w; i, w7 @+ P UF_CALL(UF_CSYS_ask_matrix_values(matrix, &csys[3]));/ ]) r* m X) g0 @0 x
FTN(uf5940)(abs_mx, csys, mx, &irc);
, c: M' C, D, Q e) w6 v& p0 ? FTN(uf5941)(pos, mx);
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/* This motion callback emulates the rubberbanding circle seen when
) b8 q- K9 `0 q8 N7 D2 N using the interactive option Insert->Curve->Basic Curves...->Circle */
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static void rubberband_circle_cb(double *screen_pos,
) o- g7 q, u$ |3 K5 c$ Z UF_UI_motion_cb_data_p_t motion_cb_data, void *client_data)! {# k/ T. i6 w* ~
{
0 R l. f7 C, ?3 r( f double
: f" i2 b0 _# z axes[9];
8 }* b1 `# a- F UF_CURVE_arc_p_t
9 z0 k3 T. |- o$ b5 l my_data = (UF_CURVE_arc_p_t) client_data;
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- \: i- Z' G& K, y- J O0 U map_point_to_matrix(my_data->matrix_tag, screen_pos);
) y# [. w% }) G: ~6 a" e* L UF_VEC3_distance(my_data->arc_center, screen_pos, &my_data->radius);9 X6 _6 p' d. U: x' I! X
; B: j! Z, Y( ^& A/ B" m f' b if (my_data->radius > 0)/ O3 T8 B+ p1 j7 l
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UF_CALL(UF_CSYS_ask_matrix_values(my_data->matrix_tag, axes));
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UF_CALL(UF_DISP_display_ogp_circle(motion_cb_data->view_tag,
i& n' K2 a0 c: d8 g: |/ T/ K" G axes, my_data->arc_center, my_data->radius));
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& J. [( x% }0 @" B$ \static logical specify_circle(char *prompt, UF_CURVE_arc_p_t the_data)
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resp;
1 N* \0 F2 l% j( {3 K4 r tag_t; q7 D, J& L6 U1 _8 E5 c4 y
view;
# w5 Q s+ |% k- k# q0 c char {; d% Q1 F3 m
msg[133];
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on_arc[3];/ x; T$ H/ N; A' v. o
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sprintf(msg, "%s center", prompt);$ [9 P& w U( ~. c
UF_CALL(UF_UI_specify_screen_position(msg, NULL, NULL,
4 F$ |# D+ l6 E$ B3 K. }4 _. p the_data->arc_center, &view, &resp));( Q$ n& Z5 v4 I$ r/ x# l# t5 ]% J6 m
if (resp != UF_UI_PICK_RESPONSE) return FALSE;
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9 w9 U$ G9 S. h8 `/ A" d2 E the_data->matrix_tag = ask_wcs_matrix_tag();( w3 `9 k1 c/ y8 O6 h
map_arc_center_from_abs(the_data);
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! n/ f9 `1 p" e sprintf(msg, "%s point on arc", prompt);
5 N- M p0 d3 K UF_CALL(UF_UI_specify_screen_position(msg, rubberband_circle_cb,
- y% G" v2 `! \1 {% E (void *)the_data, on_arc, &view, &resp));8 S5 N* S+ n( Y" b( P( E
if (resp != UF_UI_PICK_RESPONSE) return FALSE;- v& R4 Y8 e& P& w% V S; m5 \) G
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map_point_to_matrix(the_data->matrix_tag, on_arc);& P; E: _/ i3 }( u7 z$ j- m: v
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UF_VEC3_distance(the_data->arc_center, on_arc, &the_data->radius);* K) t* @' s! n ^& ^8 E2 F
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return TRUE;
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