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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+ y8 S5 o1 _, t0 N, |4 f& c! D
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[mw_shl_code=c,true]static void map_arc_center_from_abs(UF_CURVE_arc_t *adata)
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irc;5 [: B+ \: U: L2 r
double
4 \( q& a" J8 X4 h5 J/ K' s4 F2 ] abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 },1 q# q1 n6 q& p& F7 C3 f1 k. m4 g' X
csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},* ?5 v" X6 J3 j+ x* R M- \9 r
mx[12];
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! E+ T" ^: { B) e2 ?+ X+ G UF_CALL(UF_CSYS_ask_matrix_values(adata->matrix_tag, &csys[3]));1 D( l% p+ w w! C: I2 H ^
FTN(uf5940)(abs_mx, csys, mx, &irc);9 y- ~6 ]5 B6 Q. u/ t
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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irc;
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abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 },+ c7 y) k( F" ~
csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},: T' i) h0 e' @% g7 |6 C% Z
mx[12];+ v+ v6 b8 Q. x
, X+ _6 ] l, f7 a" f1 m9 J UF_CALL(UF_CSYS_ask_matrix_values(matrix, &csys[3]));
/ n9 G* d; b1 ]) K Y FTN(uf5940)(abs_mx, csys, mx, &irc);0 S F$ k0 {2 a
FTN(uf5941)(pos, mx);/ `* _2 u% k) R7 j. c% P z
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. l* u: L% T1 R/* This motion callback emulates the rubberbanding circle seen when; v1 s2 O- d' [# Z. M
using the interactive option Insert->Curve->Basic Curves...->Circle */
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, J5 ]& O* S" t4 U4 Fstatic void rubberband_circle_cb(double *screen_pos,6 [5 x- E! y9 i. A7 k
UF_UI_motion_cb_data_p_t motion_cb_data, void *client_data)9 R( g" I; W( S+ o' w# G
{
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axes[9];
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6 E& ^! m+ _4 \' z; a my_data = (UF_CURVE_arc_p_t) client_data;
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0 N5 ~6 w$ L# _1 ^3 l map_point_to_matrix(my_data->matrix_tag, screen_pos);
, ^0 K% j0 _ G1 W9 x UF_VEC3_distance(my_data->arc_center, screen_pos, &my_data->radius);/ o& E( F/ ^9 i! {
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if (my_data->radius > 0)6 m1 F/ Q% R) y! M9 V
{
: d0 ?4 r h( f w7 ~) P* c UF_CALL(UF_CSYS_ask_matrix_values(my_data->matrix_tag, axes));
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' @! L& ~# d: y UF_CALL(UF_DISP_display_ogp_circle(motion_cb_data->view_tag,
* }! d2 g9 A& i6 h$ e# ?) I axes, my_data->arc_center, my_data->radius));& B, k( c/ k2 c3 U8 c# ~! q) j
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}
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; w0 i; M9 R# t" _static logical specify_circle(char *prompt, UF_CURVE_arc_p_t the_data)
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int
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tag_t# x Y9 v; c% u5 d; X4 N4 s
view;
! ^+ X: x# r- q7 a" N5 K char
- ^* d/ n, _7 g# m- B+ G3 b+ E msg[133];; F! y! _+ K, h$ T7 s* N
double
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sprintf(msg, "%s center", prompt);
9 _* K1 R$ X6 X0 Y, g UF_CALL(UF_UI_specify_screen_position(msg, NULL, NULL,
+ p) v1 E) |3 s& z+ |! x6 C the_data->arc_center, &view, &resp));; C/ r, J% s: ~4 C% {2 Q. @
if (resp != UF_UI_PICK_RESPONSE) return FALSE;
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2 B2 i+ I' W4 [4 D2 J2 d: ` the_data->matrix_tag = ask_wcs_matrix_tag();
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* `! b6 Y% k% w( [: r$ B* @' X sprintf(msg, "%s point on arc", prompt);! C4 j5 h* d3 Y& V
UF_CALL(UF_UI_specify_screen_position(msg, rubberband_circle_cb,
) r: C' `6 N. x2 D2 y# k2 ~! q( o. T (void *)the_data, on_arc, &view, &resp));
& m, p$ E1 n( l" r9 ^ 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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UF_VEC3_distance(the_data->arc_center, on_arc, &the_data->radius);
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return TRUE;
& k6 o) `8 F' |: y7 i: D}[/mw_shl_code]
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