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NX二次开发源码分享:动态画圆,指定屏幕点和向量相关用法
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: F" j- r- |" Q+ V, [; A这个案例很不错的,分享下,程序运行的结果是指定屏幕,拖拉即可动态绘制圆圈!- r5 u U/ ~; X* V( |( s
$ i/ g+ w4 t& H: `6 _$ o' l#include <stdio.h>
7 Y% e5 d6 a! v) [) \" f#include <uf_defs.h>
1 N& Q/ v+ u/ o$ |: |* h#include <uf.h>
% i0 w, I( d$ G#include <uf_ui.h>
& j6 ~8 J3 ?3 e#include <uf_csys.h>( B M9 ?; S5 o
#include <uf_vec.h>; D! Y) y) x0 [+ e Y) N& X
#include <uf_disp.h>
' p$ W# i6 P0 X8 Z3 m6 ~$ F#include <uf_curve.h>9 d1 ?# z7 g3 x& m# ]8 n @- k
#include <uf_mtx.h>) k7 l) j4 P- |" n/ \! @7 R. ?
#include <uf_obj.h> @. L+ P+ C Q: Z
typedef struct s/ Y+ h: p8 i/ |. z
{ UF_CURVE_arc_t *arc;
5 Z* K4 X9 E* y2 Y6 N/ B8 e. R3 x double abs_ctr[3];
3 i$ p9 i* M7 m0 N5 A7 g double matrix[9];
# F+ g5 w2 L" x3 Y U7 c double x_axis[3];
' P. D- k* ~8 H7 Q& M double y_axis[3];
7 s1 J: l" Q: C$ {, B } my_motion_data_t;. l& x* u6 P# w- q/ g
/* Define a motion callback to render a visual representation of. @% J% W4 c2 |. B- Z* c
* the circle to be created, along with a bounding box around the
& x8 }! ^; l& u2 F7 r# r5 g6 c * circle, an arc of radius 1.0, and a "rubberband" line from the
. Q$ V5 p/ o0 }- B * center to the cursor position.+ ^3 h5 D8 ^4 n4 ]0 v9 @
*/6 ^# r* o0 C5 y9 h# m/ L3 E
static void motion_cb( double *screen_pos,3 T& J, @! I- g2 N
UF_UI_motion_cb_data_p_t motion_cb_data,
2 M6 j" d& k9 ~4 \% F% q my_motion_data_t *my_data )& Y" S8 S2 U2 v N
{
i6 k5 n" }0 V7 a double radius, pos_array[5][3];
8 L. i. J& k' Z. i @" A; d double xrad[3], yrad[3], x_y_vec[3], x_ny_vec[3];
: n _2 A8 D% H# L: B' { /* Calculate the arc radius: the distance from the arc center, R1 o2 I: o/ l6 g5 e
* to the current screen position.; t; b- i3 F0 U; Q+ m
*/" t9 X8 ]; c9 ^4 O; S
UF_VEC3_distance( my_data->abs_ctr, screen_pos, &radius );
+ ~" B9 ?+ v, T. F: ^ /* Map the arc center to the "csys of the arc".* j; I7 A$ L6 }: q. u" E
*/# s5 Y4 X) _% T" ]/ y: x
UF_MTX3_vec_multiply( my_data->abs_ctr,- ?" g# G6 T+ b, e1 M; w3 x3 l6 x
my_data->matrix,: B3 ^* P3 P, l( M5 Q
my_data->arc->arc_center );8 \* w8 i# u- O. f
/* Draw a circle and an arc in the view of the cursor.
! c, J8 h8 |" [- H */
0 W$ Z3 n; }1 ]. i8 F UF_DISP_display_ogp_circle( motion_cb_data->view_tag,6 u* w H W8 ?- Q) [
my_data->matrix,1 F% K- t' B/ \$ ]1 O' f2 A+ j6 a4 V
my_data->arc->arc_center,( H/ W# ?6 K$ s1 g
radius );6 L( ~, x4 ~/ y) t( ^) V' N
UF_DISP_display_ogp_arc( motion_cb_data->view_tag,
; B; [ A) t5 ` my_data->matrix,; s0 ]' p2 y5 p8 b' k
15.0*DEGRA, 345.0*DEGRA,
* ]1 y' W9 A1 m my_data->arc->arc_center,- K: h* v+ c% U V
1.0 );
8 N8 {& L- G6 M- K /* Draw a bounding box around the circle.1 o- u; c9 _8 ^" @ M8 _! H3 {
*/
# y, Q+ f2 K; o+ \! B& H/ E UF_VEC3_scale( radius, my_data->x_axis, xrad );
0 f W7 n0 n% L/ [9 h3 k UF_VEC3_scale( radius, my_data->y_axis, yrad );& P4 c* p) y. q, p( D
UF_VEC3_add( xrad, yrad, x_y_vec );
& N6 ^9 `: E4 h/ _9 ? UF_VEC3_sub( xrad, yrad, x_ny_vec );3 n8 P8 e& T! u7 \7 o$ ]5 [
UF_VEC3_add( my_data->abs_ctr, x_y_vec, pos_array[0] );
# b- l$ U4 B% \" Q$ V4 s UF_VEC3_sub( my_data->abs_ctr, x_ny_vec, pos_array[1] );5 g. J3 L5 n: R: Z. W
UF_VEC3_sub( my_data->abs_ctr, x_y_vec, pos_array[2] );
/ s2 D: E m: w& g UF_VEC3_add( my_data->abs_ctr, x_ny_vec, pos_array[3] );
0 o' A" I$ }3 ~1 L* x UF_VEC3_add( my_data->abs_ctr, x_y_vec, pos_array[4] ); _( Y) W, h* c8 e
UF_DISP_display_ogp_polyline( motion_cb_data->view_tag,' K' N) Y1 Q( P) |. `4 c5 I
pos_array, 5 );
+ w8 r% R. f, ]( c) D /* Draw a "rubberband" line from the circle center to the* Z6 f( [. H! b, R3 n; N
* cursor position./ e$ K0 D! i2 H# L
*/
& s, x$ `+ ~* R+ ]" O# c- g UF_DISP_display_ogp_line( motion_cb_data->view_tag," c: T$ h! i6 |( K8 ^# @/ n* `
my_data->abs_ctr,
( N- r: I* s0 d! F% b* |6 I0 p screen_pos );9 O" z- e2 `2 L( h; V7 q
}
" x+ j/ a% L9 S0 v& }+ i2 l9 S#define UF_CALL(X) (report( __FILE__, __LINE__, #X, (X)))
7 s' Z6 E4 v! \static int report( char *file, int line, char *call, int irc)
5 q" K, |* r* F. o: R0 K{
( g0 y6 S2 {; _- M1 Y if (irc)# c- e* x/ z& E7 J
{) p9 i, N9 H' T5 d
char messg[133];
3 v8 C3 p( ?) _. m3 X( T printf("%s, line %d: %s\n", file, line, call);" G# c( w# R0 M7 a+ t6 p! P8 A4 `7 ]. m
(UF_get_fail_message(irc, messg)) ?( X% g- c# X: r) P4 X5 u4 |9 h+ @
printf(" returned a %d\n", irc) :
% d9 C5 h8 r' L/ E- B+ ~ printf(" returned error %d: %s\n", irc, messg);, w0 Z- ]9 x" q" z6 M
} j( A7 t& O) c1 i
return(irc);
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static void do_UGopen_api(void)
& i5 O3 l: v7 |1 G: G{
/ L4 I; D9 g7 M& l# e int default_plane;
& o; v) a& w! L7 j$ s& t7 {/ s2 g int plane_resp, ctr_resp, pos_resp;
' @ o- J; u% ?1 M D* A3 I/ ^ tag_t plane_tag, saved_wcs, mtx_id, csys_id,
, {7 {% y6 v! c6 j$ `$ w- p3 Q arc_id, view_tag;
t0 L$ n! l/ s+ l5 i& t& M3 t double plane_matrix[9], plane_origin[3],# H6 M/ B1 h+ i9 {5 [* r& X5 Y, `
x_vec[3], y_vec[3], arc_edge_pos[3];
! a" X8 F% l; z double root_origin[3] = {0.0, 0.0, 0.0};
* U! m! r6 @/ r double work_origin[3];
+ V9 u; q5 g* V& L* y" l1 S4 S6 z UF_CURVE_arc_t arc;
- i% q2 M9 P m& Z my_motion_data_t my_data;2 f% K& G$ l. x- I
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my_data.arc = &arc;
8 N) |6 v& g* x# x2 n2 D arc.start_angle = 0.0;* j/ s P2 X! H6 I& \/ v
arc.end_angle = TWOPI; /* Create a full circle. */
8 ^5 g2 v0 ?1 M e5 Y0 x default_plane = 5; /* Default plane = WCS */0 C+ o& d) i+ B1 m7 p- Q8 Q
do% j5 j% ~& C& z( j+ O* E$ V7 r
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/* Specify the plane on which the circle is to be created.1 b6 o) g- N2 Y1 U- i9 t. s3 v
*/
# f6 b" V1 K# t: f# H0 d UF_CALL(UF_UI_specify_plane(* o+ @. n0 N! b% y7 u
"Specify plane for circle creation",. F- \1 ~/ W" V' o" T" U; `
&default_plane,
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&plane_resp,* j3 T$ q' K3 q8 g r
plane_matrix,9 q. T1 \. o3 {& z
plane_origin,5 ^+ |4 Z2 x( ?3 U1 m$ E6 U9 f
&plane_tag ));* G7 _! o1 Q' ~( t5 C, P
if (plane_resp ==3)$ {' C# G) [- t% C# L& P/ K3 a! J
{
5 O* ]9 Q8 @" J4 ` /* Save the current WCS for future restoration.1 J3 O- {& X+ v" P
*/$ U# b. \+ N5 _* w2 R! R
UF_CSYS_ask_wcs( &saved_wcs );
1 a* r, b/ T" C0 L# h3 ~/ K /* Move the WCS to the specified plane. This is
/ z+ `0 q1 y+ b * necessary because the position passed to the motion5 t6 {$ O, X$ a
* callback, and the position returned by
3 P" p) [0 ~: H * UF_UI_specify_screen_position, is the screen8 |4 ^. h7 ]- q7 f7 ^3 B- g
* position projected onto the WCS XY plane.
! c5 M8 @5 R" ]; }5 ]0 } */0 w* v; b. Y- L+ D: v6 Q
if (default_plane != 5)/ y# F+ o. k; X. N; L( f# q
{
8 U3 ~' Y- M+ p/ z UF_CSYS_create_matrix( plane_matrix, &mtx_id );
) P/ B4 A) a) r& K UF_CSYS_create_csys( plane_origin, mtx_id,
0 S- `0 B8 m1 ?$ Q' V! z* Z &csys_id );
& W5 e0 ]$ \& c6 X( d UF_CSYS_set_wcs( csys_id );9 _7 M; m2 q4 T+ I7 Q
}
- u0 U; X D6 N$ l. j \ /* Obtain unit vectors and the arc matrix relative to
4 Z1 S1 `) W. y" T& u3 J * the Work Part coordinate system.
& D3 Q; B1 X: q9 @7 p0 r */& r: ~5 L% N0 N" ^' N" e/ X% O) G
UF_MTX3_x_vec( plane_matrix, x_vec );
+ _' v. Z& k# s( F* G3 g UF_MTX3_y_vec( plane_matrix, y_vec );
4 g, \: f) R. T UF_CSYS_map_point( UF_CSYS_ROOT_COORDS, x_vec,
' }9 w/ X1 G4 k1 `! P UF_CSYS_WORK_COORDS, x_vec );
$ Z+ t0 b9 h7 M9 a! _/ b/ K+ x, ] UF_CSYS_map_point( UF_CSYS_ROOT_COORDS, y_vec,# ]1 ~1 ^0 {2 s& f4 X
UF_CSYS_WORK_COORDS, y_vec );
" k; C, X" U5 r- _$ Q+ A! |3 c# d* f% T6 H UF_CSYS_map_point( UF_CSYS_ROOT_COORDS, root_origin,' G" i/ @( F! d% U4 V8 N$ [0 S
UF_CSYS_WORK_COORDS, work_origin );
4 K( c# b4 U/ Z+ a3 ]( o UF_VEC3_sub( x_vec, work_origin, my_data.x_axis );
4 W% L- q. B& G5 a UF_VEC3_sub( y_vec, work_origin, my_data.y_axis );2 o# K9 u* @3 |: ^0 L: c
UF_MTX3_initialize( my_data.x_axis, my_data.y_axis,
% Y P2 d8 l; @# M4 |2 d my_data.matrix );
" A) g) \" q7 @1 V. {! k UF_CSYS_create_matrix( my_data.matrix,
- r% p" f$ U" R4 {4 {% J' z &arc.matrix_tag );4 E; g, \# O2 j
do9 b0 N0 Y) t' J0 i
{/ Z! `% H1 E M# e R E
UF_CALL(UF_UI_specify_screen_position(
+ x; E) O* g$ `* b, N) V "Specify arc center",
2 Q$ {$ |4 q5 x+ y NULL,
/ S" R/ s9 q6 \+ q9 d NULL,1 a E5 t/ |& j" w
my_data.abs_ctr,# O! E$ ~3 [" G. |% a5 |) P! O% H! k, ^
&view_tag," K% |* a& \6 t8 e6 k. g
&ctr_resp ));& s3 z6 z1 x* e: ]
if (ctr_resp == UF_UI_PICK_RESPONSE)" i# h+ z; x2 r1 J7 K& q
{2 b/ g( S4 h0 x0 `, V' K: c
/* Map the arc center to the arc csys.
4 s% c" P6 V d) Z* X */
! |' [' x0 u. P! C* t# n7 j4 _ UF_MTX3_vec_multiply( my_data.abs_ctr,
* G( I& U. F7 s p- G. y my_data.matrix," X) }2 v- V7 ], Z I) V5 @* u
arc.arc_center );
[5 j% \& X5 r/ Z/ t UF_CALL(UF_UI_specify_screen_position(
. R0 W! _+ T9 M; r "Indicate arc radius",' l& e8 x6 @% q
(UF_UI_motion_fn_t)motion_cb,
g( F3 Q4 Q, W! l( } C (void *)&my_data, \* V6 J8 A8 R. F' B
arc_edge_pos,
/ ?% K* d8 Y9 M+ p( d6 q8 h &view_tag,) H% K( h9 F1 K
&pos_resp ));
% M' z$ ~4 j9 Y4 q/ P2 E! J. d+ O /* If a position was obtained, create the3 g* ?* k' A$ C; P( d4 Y f
* circle.
, d5 q) q( o3 ` {1 }7 V$ R */5 Q2 i6 z7 m+ O/ ^% w ~. [
if (pos_resp == UF_UI_PICK_RESPONSE)# a3 \ W; K% B, j# o, W7 B
{- I) E( i0 L4 e
UF_VEC3_distance( my_data.abs_ctr,
) {6 u& B# B1 s7 m; E arc_edge_pos,7 y! n( n/ g; x
&arc.radius );- t# p* ?, S% n: U1 ~
UF_CURVE_create_arc( &arc, &arc_id );
* a. n- l. A9 ]4 `* c }& V- \& F; Y8 ]2 G& a. J" L# u
}$ ]" A# {# u/ |* q
} while ( (ctr_resp == UF_UI_PICK_RESPONSE) &&0 C" E% J* g# O* a* B
(pos_resp != UF_UI_CANCEL) );4 L6 E9 R: D. C! b7 q$ B4 v
/* Restore the WCS if it was altered above.; ?8 J) n0 w) {) X$ r
*// Q: B3 j! } s; z: v
if (default_plane != 5)
- M1 b2 ^- e% K9 I1 B {
* B* N9 w+ o% U3 f4 K UF_CSYS_set_wcs( saved_wcs );# S$ `' a. B# w4 v- G, ^7 p
UF_OBJ_delete_object( csys_id );
: s& S+ m$ {0 G# ] }3 Z. R2 J7 M- U; p" |% z2 A
}; L3 [- ?& L' K# E- r& l# e- u
} while (ctr_resp == UF_UI_BACK && plane_resp == 3);% {, O$ D6 K+ y# @ x8 t
}+ O8 q4 X9 `8 Z) L
/*ARGSUSED*/0 s5 x/ s. w+ u g- _& c5 A/ }, q& t; B
void ufusr(char *param, int *reTCode, int param_len)* D# q! j3 v3 [3 V5 [; u
{
1 i/ V& v! r# `$ I if (!UF_CALL(UF_initialize()))* v& v1 p& n6 h( c9 ~: u
{
$ A* o0 j, ^# @ do_ugopen_api();
" d l, [3 x9 y$ @( d/ A6 ^ UF_CALL(UF_terminate());
$ h, P3 o8 h! s. o }8 K) ]9 j b1 [. c
}, w V; u: v% Z4 o" g7 f
int ufusr_ask_unload(void)
2 m/ G5 B7 B2 j( _* _2 o{3 N% e* h6 d4 z
return (UF_UNLOAD_IMMEDIATELY);* B3 S6 A* P' i& i; Z* Y- C
}
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