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/ N* w6 ]/ Q$ t, ?! G3 W2 x3 L【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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9 r! j6 ]$ }1 H4 E) C[mw_shl_code=c,true]static void map_arc_center_from_abs(UF_CURVE_arc_t *adata)2 i5 C; ?/ H ?3 Q% r
{
# n* L8 O; W8 d( S9 C int
- ^, d9 n1 v0 g1 L5 e" w7 Z irc;
( q4 h+ W1 a% t# w double
5 K9 s6 g# {7 t abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 },+ @; _) P' a/ r X/ k/ {, A
csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},8 e' }# w, s3 R4 W
mx[12];! d @ u* y5 D
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UF_CALL(UF_CSYS_ask_matrix_values(adata->matrix_tag, &csys[3]));% o: |# X7 y2 m$ Z
FTN(uf5940)(abs_mx, csys, mx, &irc);0 H7 r: H2 O5 o" P3 x! \
FTN(uf5941)(adata->arc_center, mx);
) [5 n7 D: {5 N+ X4 o" M}
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static void map_point_to_matrix(tag_t matrix, double *pos)) C$ L- [& {; g& l1 g3 p) J* S
{+ G$ }* ^8 Y9 P9 p
int
2 k0 n! A$ g! f7 w( o irc;6 S: R, \9 \; v" a6 D" D
double
" A) L& z1 u& P; W abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 },
2 p2 h) g' y* v' f, V csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},* [# |% c* @% Y% t5 I1 j/ Y1 z; n9 Q, s
mx[12];
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UF_CALL(UF_CSYS_ask_matrix_values(matrix, &csys[3]));
1 D: T) | z# _) W FTN(uf5940)(abs_mx, csys, mx, &irc);7 a; Q" W; u) S5 y
FTN(uf5941)(pos, mx);
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/* This motion callback emulates the rubberbanding circle seen when
; q) S' K0 C3 i4 E _6 b3 @8 ^; E using the interactive option Insert->Curve->Basic Curves...->Circle */: _/ w! W+ W( @/ @) Y
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static void rubberband_circle_cb(double *screen_pos,
, t3 N3 q% U& H, ^: l UF_UI_motion_cb_data_p_t motion_cb_data, void *client_data)9 Z5 \1 K$ G. Z) r
{% }8 E! O: Z3 d9 U s- E
double
( F. w! W" P* @& u2 b( ] axes[9];! p6 Q% C/ G4 C
UF_CURVE_arc_p_t
: t) |. w6 o9 }6 e my_data = (UF_CURVE_arc_p_t) client_data;
% q1 }7 k. K1 K% y) S
0 Q ]* W% Z5 O$ Z d* ~$ `+ e map_point_to_matrix(my_data->matrix_tag, screen_pos);
+ n- ~5 r# N, L6 F5 \* ? UF_VEC3_distance(my_data->arc_center, screen_pos, &my_data->radius);0 M7 P2 i0 O# L: `7 ^
1 U. S. e% |# F! I' u# {/ u) _" H if (my_data->radius > 0)
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. N3 e& C1 V- n UF_CALL(UF_CSYS_ask_matrix_values(my_data->matrix_tag, axes));5 B: t9 g+ |4 l; D
1 {* V9 Z, g, y Z( f* N% O$ M UF_CALL(UF_DISP_display_ogp_circle(motion_cb_data->view_tag,: z4 A+ |# H/ T
axes, my_data->arc_center, my_data->radius));
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}
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static logical specify_circle(char *prompt, UF_CURVE_arc_p_t the_data)" i# k5 o8 ^( _
{
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resp;
9 @4 n X* G5 X tag_t
8 r5 p7 I* I1 Q3 Y2 @ view;4 U; C$ C6 j v9 q; G% Q( H
char
y3 B% p0 t5 b msg[133];( O# }, A7 P( a: S
double( L3 J& t2 D$ h$ ^4 z( \# g% z
on_arc[3];4 M, l8 p6 z: ~& r
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sprintf(msg, "%s center", prompt);( T" v' C s# C1 {$ O- `$ D
UF_CALL(UF_UI_specify_screen_position(msg, NULL, NULL,2 V; h* i0 \( T3 P% ]. ]
the_data->arc_center, &view, &resp));. I: g* G* p/ R3 p8 S+ g" W' G+ P0 M
if (resp != UF_UI_PICK_RESPONSE) return FALSE;
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( `( _1 T U) |9 a( [# M the_data->matrix_tag = ask_wcs_matrix_tag();0 k( U& K4 Y5 |4 S* S# P8 @2 S1 v
map_arc_center_from_abs(the_data);2 {7 ]& X4 I0 h r
9 x1 v: C; l8 |2 p) n. K& t% T! \+ z sprintf(msg, "%s point on arc", prompt);. {% S! c2 O) d( u: X4 T
UF_CALL(UF_UI_specify_screen_position(msg, rubberband_circle_cb, A6 X r W0 w# k
(void *)the_data, on_arc, &view, &resp));/ f- E8 X; `1 j( X2 K
if (resp != UF_UI_PICK_RESPONSE) return FALSE;
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7 Q. B, h! e* |+ _7 e' L c map_point_to_matrix(the_data->matrix_tag, on_arc);
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! n0 y/ v; L1 w' ] x3 }$ e2 @7 A UF_VEC3_distance(the_data->arc_center, on_arc, &the_data->radius);
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return TRUE;
& t- \) u; E* W}[/mw_shl_code]
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