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/ ~$ u( z, @6 s$ c6 Z. U【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)0 s" ?& X) {. j2 d% i) l; S7 g2 _
{
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- w' O1 M* P9 Z9 E2 ]( j# l3 { irc;( ?( g" [* L2 z J
double! |% B8 Q2 e' k, q. ]$ K; C+ y% `
abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 },) ]& f4 ]/ A$ q u
csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},
% t7 U- H) O# L. N7 [% g mx[12];; q& i6 E x, F: u! u# X
5 I1 y6 y! ]0 j UF_CALL(UF_CSYS_ask_matrix_values(adata->matrix_tag, &csys[3]));1 G4 V( t4 Q1 v
FTN(uf5940)(abs_mx, csys, mx, &irc);3 b4 f/ H+ {! ^" p; C: A
FTN(uf5941)(adata->arc_center, mx);
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static void map_point_to_matrix(tag_t matrix, double *pos)
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double
{) G2 x; T8 n1 W/ S) q abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 }, c9 Y" G$ f! ~, C3 f+ R
csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},3 L: o) n) ?' J, I2 q& I9 H
mx[12];
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: X! f' ?- h6 X UF_CALL(UF_CSYS_ask_matrix_values(matrix, &csys[3]));
; G* c1 X6 R+ u: T) R3 i7 i9 u FTN(uf5940)(abs_mx, csys, mx, &irc);
6 j3 U$ ? n* t1 J5 l9 J FTN(uf5941)(pos, mx);
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6 j1 D/ V& ]' I/ A$ a9 h: B3 u/* This motion callback emulates the rubberbanding circle seen when
/ Y; @5 C9 A6 R8 [2 h3 C ? using the interactive option Insert->Curve->Basic Curves...->Circle *// w ~3 w% @( w8 J& L7 I& y
( s; u& H8 _1 [5 Y/ Y0 }' t* cstatic void rubberband_circle_cb(double *screen_pos,! ?8 p7 ? ~: b; i
UF_UI_motion_cb_data_p_t motion_cb_data, void *client_data), M- S) ]" @+ E: J% X
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double- x8 i. A8 W- K/ _
axes[9];
! y4 P6 W; P& Z UF_CURVE_arc_p_t
8 ~1 f3 y5 q" a2 W8 l1 }! e$ n9 S ` my_data = (UF_CURVE_arc_p_t) client_data;
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" v. h1 D: o$ j3 l& t# T! M6 c) T map_point_to_matrix(my_data->matrix_tag, screen_pos);: z5 @& {* e4 T |3 r' k2 k y
UF_VEC3_distance(my_data->arc_center, screen_pos, &my_data->radius);6 ]: [# w6 c7 M+ B$ |4 _3 |( L& X
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if (my_data->radius > 0)% e$ m! C- B* u! Z' Q
{% t' X# F/ r. z' S: Q4 K( b8 g# R
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,
1 n% _* n; A) V2 f0 M4 G axes, my_data->arc_center, my_data->radius));! C+ K6 A* b. Q% V) ?
}
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static logical specify_circle(char *prompt, UF_CURVE_arc_p_t the_data)
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int
+ S7 y: a4 L, V8 v1 b3 `9 w resp;( ^2 v9 M. i1 ]+ Q2 X) H2 a
tag_t
" `4 r1 I4 J/ i. E* ]6 t$ {3 y view;, h" G( R" a8 k5 ]
char
: k$ d3 e1 O% _& e7 y5 B% q# H5 l msg[133];; m8 M1 A3 @! H' l' P C
double( V: c3 y& x( \
on_arc[3];
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. n* B6 S. x* Q5 e; Q3 A7 a4 n sprintf(msg, "%s center", prompt);$ X3 y, P9 j3 d3 j ]
UF_CALL(UF_UI_specify_screen_position(msg, NULL, NULL,( k! ^; z: Z* Q& ~3 K- C
the_data->arc_center, &view, &resp));
5 _$ t U1 ^; w, g0 E* f3 P1 P8 e if (resp != UF_UI_PICK_RESPONSE) return FALSE;
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, B- g5 P; x, M- f( \# _8 w the_data->matrix_tag = ask_wcs_matrix_tag();
4 O. v7 T. _% |/ Q& c5 I map_arc_center_from_abs(the_data);
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sprintf(msg, "%s point on arc", prompt);
; r% h k. c. Q& P: e UF_CALL(UF_UI_specify_screen_position(msg, rubberband_circle_cb,* ^9 X9 @+ {, T& t$ }
(void *)the_data, on_arc, &view, &resp));' v' u% }# t+ b3 t' @
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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6 h4 N' J$ l" k9 n5 }/ l UF_VEC3_distance(the_data->arc_center, on_arc, &the_data->radius);
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return TRUE;; V8 b1 d: Z& d3 N$ q2 f; e
}[/mw_shl_code] j, M4 X4 ?" S
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