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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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+ i3 B3 L) n3 |9 v[mw_shl_code=c,true]static void map_arc_center_from_abs(UF_CURVE_arc_t *adata)
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irc;8 B1 h( P# a* l% f
double
- x3 C u" J( y0 k abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 }," B; A+ _, u0 O. D
csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},1 Q6 `% X; O+ Y9 y/ s4 w
mx[12];
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UF_CALL(UF_CSYS_ask_matrix_values(adata->matrix_tag, &csys[3]));
. I$ D- o2 [2 B# K; l2 K3 I @ FTN(uf5940)(abs_mx, csys, mx, &irc);. z& |6 _. @7 k
FTN(uf5941)(adata->arc_center, mx);
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static void map_point_to_matrix(tag_t matrix, double *pos)! U9 |- t+ G1 ~& q% q8 o1 c# _
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irc;
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abs_mx[9] = { 0,0,0, 1,0,0, 0,1,0 },/ u4 u7 x. w( ^; u. j
csys[12] = { 0,0,0,0,0,0,0,0,0,0,0,0},
4 d8 F" E: L/ v mx[12];
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5 w9 @" Q. C& E1 } UF_CALL(UF_CSYS_ask_matrix_values(matrix, &csys[3]));7 N( l& k' W& z4 n {
FTN(uf5940)(abs_mx, csys, mx, &irc);
; P; ^# h+ I; b FTN(uf5941)(pos, mx);
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& V; h; M* o; q$ J9 j1 n. s/* This motion callback emulates the rubberbanding circle seen when. b! {$ e6 V' P
using the interactive option Insert->Curve->Basic Curves...->Circle */0 d- [/ |. t( \7 q" z0 C
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static void rubberband_circle_cb(double *screen_pos," y1 J; _2 \! \
UF_UI_motion_cb_data_p_t motion_cb_data, void *client_data)
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UF_CURVE_arc_p_t
3 h5 E7 i8 e _1 {& \8 I my_data = (UF_CURVE_arc_p_t) client_data;& @8 b: g6 s) R4 T
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map_point_to_matrix(my_data->matrix_tag, screen_pos);
- p' N9 G$ j; G1 O D( u5 i UF_VEC3_distance(my_data->arc_center, screen_pos, &my_data->radius);5 f# i. w; w9 w) m
& F7 e; z* T8 G6 v) w if (my_data->radius > 0)
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9 t B& s- f+ d3 X UF_CALL(UF_CSYS_ask_matrix_values(my_data->matrix_tag, axes));) D% ?5 d9 B0 D- s; X1 @. i3 Q6 y
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UF_CALL(UF_DISP_display_ogp_circle(motion_cb_data->view_tag," c) \' R( L0 _& q. e; `: J
axes, my_data->arc_center, my_data->radius));, R- S& \& t3 A; |
}
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static logical specify_circle(char *prompt, UF_CURVE_arc_p_t the_data)2 |; u i8 g( f5 X% O
{
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tag_t
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char5 w; s5 c% ^& `) R
msg[133];
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) ~: a) m& q" c: I on_arc[3];. a" J+ n; Q8 S" u9 c7 O) J
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sprintf(msg, "%s center", prompt);' z/ O# s% S7 |. |; |& `( b
UF_CALL(UF_UI_specify_screen_position(msg, NULL, NULL,. b l* N' f6 L7 N, d7 n
the_data->arc_center, &view, &resp));2 L7 U5 \* C8 ?% {0 p N8 s
if (resp != UF_UI_PICK_RESPONSE) return FALSE;
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- ]) k a8 Z/ }. M. {- t h the_data->matrix_tag = ask_wcs_matrix_tag();. h; j# X$ o& ]+ w& }2 ^3 Q
map_arc_center_from_abs(the_data);
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! X. ?+ b7 z% ~+ i& l! t1 ^ sprintf(msg, "%s point on arc", prompt);
/ n d* ~( c8 y; D: T% M* z S UF_CALL(UF_UI_specify_screen_position(msg, rubberband_circle_cb,- F* Q& {# p: X/ F! x. S
(void *)the_data, on_arc, &view, &resp));
% F& R3 L7 W) B; z) [ if (resp != UF_UI_PICK_RESPONSE) return FALSE;% O0 N3 g! u1 ^; u9 F
; U, R0 J- y, e map_point_to_matrix(the_data->matrix_tag, on_arc);. h" L" F9 U) ^& B7 E
: t% }. U' ?' S L4 r/ | UF_VEC3_distance(the_data->arc_center, on_arc, &the_data->radius);7 z4 ?, }! v- t) I6 }0 Q
8 ^: {' y/ B, f3 B/ O+ N; v return TRUE;% m& ]: Y* ~8 f6 @+ R/ g
}[/mw_shl_code]" {# ^* A2 W, C1 g- ]& t. T
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