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j2 g# k8 U& y# w8 s$ B/ }$ d, @【NX二次开发源码分享】Specify Circle 指定一个圆选择屏幕点2 v# U' J3 i! s2 P, b1 a
- M+ k! G5 N3 A |7 s8 |4 p8 C[mw_shl_code=c,true]static void map_arc_center_from_abs(UF_CURVE_arc_t *adata)9 |$ O7 M3 c* Z* \0 x4 i
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int
! n/ I& k g" O: _0 X4 o+ z% J irc;0 F; J. h! s$ X# C6 \
double
J! | C6 u: q& { abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 },
5 D1 a$ K" ~1 _$ s0 v# R' K- O csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},
; C3 d- g K( o mx[12];; _1 _" z. W9 v' A; q
; z8 O) k _! Q& C- d UF_CALL(UF_CSYS_ask_matrix_values(adata->matrix_tag, &csys[3]));% y; X' ~4 p2 K, h R, a6 o3 k2 B7 r& Z
FTN(uf5940)(abs_mx, csys, mx, &irc);/ Z3 @! \7 ~) L
FTN(uf5941)(adata->arc_center, mx);4 Y( d( R6 q0 t4 ?$ T! H
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static void map_point_to_matrix(tag_t matrix, double *pos)6 \9 `" G, ? N. n% w4 Q% L+ x- T
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int; G- r; m! M8 Z3 ^* `$ [
irc;2 q. z T0 K4 ^* P: A" i9 W; `
double, M+ S; r. m1 g/ x
abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 },
7 B2 K* O6 M6 V( U% ], I+ s* h csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},
: s- j6 y; X7 s) R, T# ? mx[12];( A# j4 I, M D* H% z
+ |4 U4 n" f, |. y W3 g6 Q0 }
UF_CALL(UF_CSYS_ask_matrix_values(matrix, &csys[3])); e$ T" z4 u: ~4 C& o/ ?
FTN(uf5940)(abs_mx, csys, mx, &irc);0 r2 F, r e8 ^/ E6 i( ]2 V
FTN(uf5941)(pos, mx);
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/* This motion callback emulates the rubberbanding circle seen when
0 d1 X( g2 Z& z% b! L using the interactive option Insert->Curve->Basic Curves...->Circle */& l n5 b' C$ I T* c. J
6 c: O% b& P0 [( |' z2 E6 lstatic void rubberband_circle_cb(double *screen_pos,
: \4 @3 w! t2 r1 i( B: ^7 t4 h/ s UF_UI_motion_cb_data_p_t motion_cb_data, void *client_data)
) c) f; O7 T, E" Z' @7 P" N9 c{
+ Q: W1 \, z( w. D0 v b' E double9 ^! p0 {+ K2 F- F0 a
axes[9];0 _0 {4 E: ~1 f5 @! ]
UF_CURVE_arc_p_t+ L- R) M8 ` L
my_data = (UF_CURVE_arc_p_t) client_data;
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map_point_to_matrix(my_data->matrix_tag, screen_pos);2 a: b( Q4 }; o, f9 V; r) K
UF_VEC3_distance(my_data->arc_center, screen_pos, &my_data->radius);
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6 P, `% Q& G. A( a! @$ o if (my_data->radius > 0) ^$ `9 T$ ]; j7 C* s5 j
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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,6 F6 F# ~) D1 C4 i" X
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)8 b6 D5 P* f! }& e
{
; G# W. L% c7 H: z) l; O% | int
2 z& _5 b3 L( S2 Q- r/ } resp;/ f6 Y% A" m5 T7 }9 x# _5 p
tag_t+ T9 `4 L$ s3 D
view;
& D( `; A7 P% w$ z3 `5 R char
7 x- R) q7 S& D1 t2 g' W msg[133];6 e) t. Y. W+ I2 l, k: C% J7 C8 E
double& ]4 g0 c( o. s0 f
on_arc[3];0 u/ L$ v2 D( f* f
" |' ^! {( C7 H; w7 T sprintf(msg, "%s center", prompt);6 e* t: Q2 E: i2 h
UF_CALL(UF_UI_specify_screen_position(msg, NULL, NULL,+ H% G$ L( {( y( B, g( c: f) |5 R
the_data->arc_center, &view, &resp));5 T9 H) d0 r" ]& }2 O, X* @, I
if (resp != UF_UI_PICK_RESPONSE) return FALSE;
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the_data->matrix_tag = ask_wcs_matrix_tag();
* K, y; _ r( V' B6 e$ H4 V map_arc_center_from_abs(the_data);: ^: S4 S- J$ x
s! \4 t+ W8 }+ u sprintf(msg, "%s point on arc", prompt);
; Q& @, q x5 {5 a UF_CALL(UF_UI_specify_screen_position(msg, rubberband_circle_cb,8 E/ b! m5 R' }) G
(void *)the_data, on_arc, &view, &resp));; c% F8 Z& D" f( @
if (resp != UF_UI_PICK_RESPONSE) return FALSE;
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map_point_to_matrix(the_data->matrix_tag, on_arc);8 d: d/ s- P) \& D
4 U6 u6 e3 k8 R; u) T6 e UF_VEC3_distance(the_data->arc_center, on_arc, &the_data->radius);) x8 M1 a$ m$ R8 y- K7 U9 E N
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return TRUE;
* K. M, \& W' G1 X# b9 B}[/mw_shl_code]5 Q: R! f) v2 L0 B( `
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