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【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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; T' |! o/ X. |" y$ c[mw_shl_code=c,true]static void map_arc_center_from_abs(UF_CURVE_arc_t *adata): M, q# v& E; @+ Y1 c+ j. ` ~
{
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irc;5 ]) p& l4 W. s! J: B# ?
double; d0 Y8 u( u0 e4 @% _, p7 q
abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 },
' a/ K. L$ ^+ r2 ` csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},: ~7 g- |, Q) M- L& _7 o
mx[12];
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UF_CALL(UF_CSYS_ask_matrix_values(adata->matrix_tag, &csys[3]));
( c% r4 J* g! W FTN(uf5940)(abs_mx, csys, mx, &irc);
* a: h* n: a8 k F( y) f8 c& `8 x FTN(uf5941)(adata->arc_center, mx);
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static void map_point_to_matrix(tag_t matrix, double *pos) U, b# `! }, t9 o% r/ c
{
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irc;$ E0 S/ i: k" b
double- l" _2 h& x; v' R( U
abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 }," p! T- K+ n; v9 y$ v+ M: K0 U
csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},* ~- A% X2 Y( P5 X1 g
mx[12];
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UF_CALL(UF_CSYS_ask_matrix_values(matrix, &csys[3]));
5 ^* {4 K" t: V+ d. \) j$ x1 a FTN(uf5940)(abs_mx, csys, mx, &irc);
- x' i# V/ N) u FTN(uf5941)(pos, mx);
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q: z( L' n1 r+ e! b- ]/* This motion callback emulates the rubberbanding circle seen when
9 Q$ Y/ w$ b7 D using the interactive option Insert->Curve->Basic Curves...->Circle */, ^1 b/ I, ^; b* a
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static void rubberband_circle_cb(double *screen_pos,( S0 a& F+ u. [1 @5 m% Y
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_t6 x$ {; `6 c& K+ t4 d/ a
my_data = (UF_CURVE_arc_p_t) client_data;) X" p9 i6 D# v& l7 A
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map_point_to_matrix(my_data->matrix_tag, screen_pos);
! V. `& O! k8 { M ~ UF_VEC3_distance(my_data->arc_center, screen_pos, &my_data->radius);: D- K0 g0 h! v( Z" q( Y3 c) Q; W
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if (my_data->radius > 0)
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6 H) D7 m" y& t6 {1 M* @# V5 \, i4 J UF_CALL(UF_CSYS_ask_matrix_values(my_data->matrix_tag, axes));
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! q' H2 o9 h7 f UF_CALL(UF_DISP_display_ogp_circle(motion_cb_data->view_tag,& e7 D7 Z# |% f$ }# C! r& L
axes, my_data->arc_center, my_data->radius));
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}
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/ D6 t8 l) C! N, r4 Ustatic logical specify_circle(char *prompt, UF_CURVE_arc_p_t the_data)% |, A. G4 U$ y" y# X j# [, X
{
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resp;! g5 _& b/ t# V: v' M
tag_t
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char" V+ ~3 @ z* A B. w; x
msg[133];( N& k8 T u. M8 C& `- C
double
! E/ a2 _& k3 z on_arc[3];
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sprintf(msg, "%s center", prompt);
7 r& q7 V" |* N& h Z/ A UF_CALL(UF_UI_specify_screen_position(msg, NULL, NULL,8 x7 _6 U/ w; ^( k0 ^1 r) ^
the_data->arc_center, &view, &resp));
+ K' i$ [/ E# ]+ h \% u if (resp != UF_UI_PICK_RESPONSE) return FALSE;) m# e+ x }/ k) i/ b( D/ z
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the_data->matrix_tag = ask_wcs_matrix_tag();' s2 O* f/ J) j( `- B
map_arc_center_from_abs(the_data);. S& h& |5 G7 k
" E5 W7 h4 ]# g1 Y2 d sprintf(msg, "%s point on arc", prompt);
4 c% Z8 e; j6 K# A3 W UF_CALL(UF_UI_specify_screen_position(msg, rubberband_circle_cb,
) W! ]3 p7 } r7 b6 j t& O (void *)the_data, on_arc, &view, &resp));
9 r$ A$ Q- J) ?5 V& A6 o& ~ if (resp != UF_UI_PICK_RESPONSE) return FALSE;
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" Z5 G: u0 e# x4 h map_point_to_matrix(the_data->matrix_tag, on_arc);( a8 ^. ]5 ]' D
: N& Y, K* o; x1 z. r7 s% O UF_VEC3_distance(the_data->arc_center, on_arc, &the_data->radius);
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# o% O7 w0 f N0 s! ~, e return TRUE;5 F! H) X2 H1 K: z( s" `2 ~7 c% B
}[/mw_shl_code]
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