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2 a) R$ q4 M1 k: ^! T6 J% U B' yNX二次开发源码分享:动态画圆,指定屏幕点和向量相关用法5 _5 x' ^( a( t2 q
n+ P* ?# O2 s& U
- U4 v& v }) }
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!
, w4 B6 I# X. R* ^. H6 \4 V
" H2 n7 ^( x5 w#include <stdio.h>
. H0 u" ~8 j% W* E( e#include <uf_defs.h>
( X" A, D3 P) D p#include <uf.h>8 H# h8 X9 [) F; N) g; X1 |$ \% ^+ I
#include <uf_ui.h>
) j. h. M, g0 S' c* I1 @#include <uf_csys.h>
2 q1 D4 Q9 {) R" h6 c) H#include <uf_vec.h>
6 I, D2 I9 P* r( M#include <uf_disp.h>- x4 F$ l) j* |# y6 v- K9 o
#include <uf_curve.h>
; F# v8 d2 X% ]8 D$ }#include <uf_mtx.h>
* P" [) s& |6 U9 @- }% W#include <uf_obj.h>
$ M5 w9 C' K5 c1 Utypedef struct
2 F, f" S6 E) Z$ k6 p { UF_CURVE_arc_t *arc;8 W4 J" Q- a, U# _0 _
double abs_ctr[3];
( P8 X2 k* a6 R# w' ]7 @% K0 s double matrix[9];. M: |6 R2 D; e
double x_axis[3];. j+ ^3 W4 K/ n1 _. C6 E( u' _
double y_axis[3];
" ]' d1 l$ r, ]3 `3 r' } } my_motion_data_t;
y' u* ^$ w* @& x% w$ Z/* Define a motion callback to render a visual representation of
% x- ~/ h7 C/ o+ S r7 } * the circle to be created, along with a bounding box around the
+ H' h! b+ J, B% u * circle, an arc of radius 1.0, and a "rubberband" line from the" ^7 {* r. |( Z P
* center to the cursor position.
0 d. U. E; `0 G: E5 m7 ] */
, V& |: Y5 j& |' Qstatic void motion_cb( double *screen_pos,3 M0 C; T1 ^1 v! F) ?
UF_UI_motion_cb_data_p_t motion_cb_data,
2 _5 z _ A4 r. u my_motion_data_t *my_data )% h; w) u2 D! G& I
{5 W& c6 x% u! M: S
double radius, pos_array[5][3];# h3 O8 l" L, e$ A: [
double xrad[3], yrad[3], x_y_vec[3], x_ny_vec[3];
7 y7 Q! d: a, B. w H /* Calculate the arc radius: the distance from the arc center
4 c4 _. E+ Q9 R* E( B0 Z! I * to the current screen position.
% `3 ]5 u: D- f */
' X9 F. u- |' ~# w9 J; | UF_VEC3_distance( my_data->abs_ctr, screen_pos, &radius );" @9 r$ U$ ?) \7 | ^' I
/* Map the arc center to the "csys of the arc". y" {: w4 w8 M5 q8 r0 D& n1 h
*/# l, }* o) F6 ]% Q
UF_MTX3_vec_multiply( my_data->abs_ctr,: T3 M, l) Z2 o- K' w1 {" K
my_data->matrix," F; m b. S9 D
my_data->arc->arc_center );
t% O ~4 E9 Y /* Draw a circle and an arc in the view of the cursor.
) \$ Q+ Z, K7 n' k' F2 y) D; q */3 M, i7 K8 ~" q7 O0 |% [) C
UF_DISP_display_ogp_circle( motion_cb_data->view_tag,
8 r# S( h4 R& I6 w' h my_data->matrix,7 k% ~+ W& w x6 b6 k( B
my_data->arc->arc_center,
* `* e3 B" Y. ?7 w) T$ f+ T9 m radius );
8 S: `* r% F! \1 b; ]2 i1 C8 _ UF_DISP_display_ogp_arc( motion_cb_data->view_tag,8 [6 x4 Z2 v1 T# K
my_data->matrix,$ w/ P q: i4 C9 ?
15.0*DEGRA, 345.0*DEGRA,4 a' o( U; `: Z
my_data->arc->arc_center,
- g2 B- j- w! Y4 L% P 1.0 );
; U) F V" V2 d2 b /* Draw a bounding box around the circle.
4 C: R( n# k: }& \/ { */% a6 e4 J/ q, K+ m- W
UF_VEC3_scale( radius, my_data->x_axis, xrad );
- B! n1 d$ ?. e6 c, _7 r UF_VEC3_scale( radius, my_data->y_axis, yrad );1 q. r- Y8 c* W5 \+ V+ @; V0 A9 g2 z
UF_VEC3_add( xrad, yrad, x_y_vec );! X8 k% @4 C g) m! f' Q
UF_VEC3_sub( xrad, yrad, x_ny_vec );
" ]5 u; x/ e: n6 M- w% F UF_VEC3_add( my_data->abs_ctr, x_y_vec, pos_array[0] );# ]3 D# Q6 h( n6 P" _
UF_VEC3_sub( my_data->abs_ctr, x_ny_vec, pos_array[1] );
. g# e# H; Z* R; s; X UF_VEC3_sub( my_data->abs_ctr, x_y_vec, pos_array[2] );% h1 r: G* }# O! G! @
UF_VEC3_add( my_data->abs_ctr, x_ny_vec, pos_array[3] );
$ e+ W# s' ?. }% h4 | UF_VEC3_add( my_data->abs_ctr, x_y_vec, pos_array[4] );
Y2 @2 L7 A G; u& A UF_DISP_display_ogp_polyline( motion_cb_data->view_tag,
* q! _; n8 z: [ pos_array, 5 );! ?4 I1 {3 X, m* T9 t6 X
/* Draw a "rubberband" line from the circle center to the
. a! E8 \8 B' w+ }* ~* D/ O0 N3 f * cursor position.
; e K' W2 s2 Y */ p, E" t: n5 F
UF_DISP_display_ogp_line( motion_cb_data->view_tag,3 r5 a) q$ V( R. e0 l
my_data->abs_ctr,/ M* W" ^ v% S0 d
screen_pos );2 d8 n8 q, P$ ? M% I3 D
}
E" R4 o5 A) J0 h* b+ ^ Q9 j3 e#define UF_CALL(X) (report( __FILE__, __LINE__, #X, (X))): H5 G/ I7 h; n8 ^! k
static int report( char *file, int line, char *call, int irc)1 x4 u) ?3 e* P8 W
{3 r/ Q, F# R* i& I0 U
if (irc)$ P. _' Z: ]& u& @7 n* H$ |9 U
{1 y8 R% |; x- T/ e
char messg[133];8 K5 o' Y- r% ?1 p& g+ {% l
printf("%s, line %d: %s\n", file, line, call);
- ~5 e; j5 w" a1 Y/ _* ?0 g (UF_get_fail_message(irc, messg)) ?* @$ l. s+ x) a: D/ I X
printf(" returned a %d\n", irc) :& q5 P: L2 ]6 a: P& \4 j8 W8 \
printf(" returned error %d: %s\n", irc, messg);. i% H! u! f+ {* c6 ^, N
}* B) y0 f8 m' a
return(irc);2 r9 s, Z1 k& m e! f4 d5 h, e* p
}- d R. O) N6 C1 S# k+ A* x% z! U: o
static void do_UGopen_api(void)
/ i e; k' H& X4 R# f{
0 ~$ A# x9 E+ ], n- m. ] int default_plane;
1 i. w; p' I" s3 k0 \0 F4 c int plane_resp, ctr_resp, pos_resp;+ G2 G" K: e) M9 H
tag_t plane_tag, saved_wcs, mtx_id, csys_id,, o+ Q9 ?9 ]5 N1 ?1 |4 f9 h
arc_id, view_tag;
7 C% A; u1 @! _3 h6 d3 c& m3 E7 ^, ? double plane_matrix[9], plane_origin[3],
* j9 v% Y1 P! Y4 W+ {) d7 @ x_vec[3], y_vec[3], arc_edge_pos[3];
/ @5 n. |1 g) w: C5 V double root_origin[3] = {0.0, 0.0, 0.0};1 b! e0 C) M0 }( ]: O* \8 U4 M
double work_origin[3];
: l0 t( @: J7 B* ?+ o( x UF_CURVE_arc_t arc;) y3 O6 s1 B( ^8 m! V' I3 o
my_motion_data_t my_data;1 ^. ~' { m0 z0 f
% a" T! H" j+ O3 C M my_data.arc = &arc;
! E/ Z9 J4 a' T4 K0 g" W arc.start_angle = 0.0;* n! w" @9 e! X( @; ]/ b) n
arc.end_angle = TWOPI; /* Create a full circle. */; x9 i2 O/ M; F6 `
default_plane = 5; /* Default plane = WCS */
6 C( S- O, p) P6 c; t9 u1 K do) T2 u; X7 K/ g5 {5 v
{
4 T2 z. g) p" J$ s" F& n9 T /* Specify the plane on which the circle is to be created.
6 Z; X# f9 e$ Y7 Y* F */% [, j: p' E$ B- u' g) w% ^% D
UF_CALL(UF_UI_specify_plane(
6 u% v C! _5 J, f) c "Specify plane for circle creation",% c) F, f# A; V; t/ s1 T
&default_plane,$ x) x3 O" Y1 ^# p U3 I/ B
1,% ]# ~2 r9 W; Z+ c$ R I X5 W$ ^
&plane_resp,3 K7 x; o3 d; e5 L0 I! S
plane_matrix,
! F! C. O) f/ y7 }$ r* r0 B- a8 e plane_origin,: a8 I+ p5 e- d8 H s. h) M9 E6 V. P
&plane_tag ));
- A6 w% T7 @$ e4 F% `/ O if (plane_resp ==3)8 c# O3 t7 k6 g
{0 O/ r: U0 i9 c. B9 y/ t( N0 u1 M
/* Save the current WCS for future restoration.% I2 ]5 q7 Z6 g
*/
2 @* d9 }) [+ Q6 l5 ^ UF_CSYS_ask_wcs( &saved_wcs );
. y6 ^# @1 h6 H( i+ D /* Move the WCS to the specified plane. This is- ?7 X2 q$ L1 D ~/ ?7 F
* necessary because the position passed to the motion
! [; q* X: f& {& @. d# K! R* C * callback, and the position returned by4 `8 ^, u' \+ w4 U7 t$ h& a7 ]8 ]
* UF_UI_specify_screen_position, is the screen
# e/ M* l& h8 ?( l; E6 R * position projected onto the WCS XY plane.
1 `4 s1 [& J$ e. H5 V */; i2 @# {8 f1 Y' G2 @ l4 `. l
if (default_plane != 5)* M `8 x5 e& L5 n- c
{! |) _7 C* n2 E3 c' F* J! E. v, a, B
UF_CSYS_create_matrix( plane_matrix, &mtx_id );
$ n$ H* H, K% m UF_CSYS_create_csys( plane_origin, mtx_id,: n- X. p9 S4 a( ^3 |
&csys_id );
/ @: B" ^$ Z' d6 C z UF_CSYS_set_wcs( csys_id );
7 _4 Z+ B$ X* E" a# P- V }
0 ?# _5 N6 n: X1 n# \ /* Obtain unit vectors and the arc matrix relative to
/ w, Q: N# e- a * the Work Part coordinate system.! p$ Y0 M8 i/ | u$ T& O. s
*/
$ g4 m! w& _% x, f5 W% ? UF_MTX3_x_vec( plane_matrix, x_vec );. n1 B0 k( f3 j2 P
UF_MTX3_y_vec( plane_matrix, y_vec );
9 ?+ s% A$ f; c! b/ B UF_CSYS_map_point( UF_CSYS_ROOT_COORDS, x_vec,
! h4 R- |2 N' v( ]1 \ UF_CSYS_WORK_COORDS, x_vec );
/ @# ?( L0 ?) [9 u/ L/ c& M UF_CSYS_map_point( UF_CSYS_ROOT_COORDS, y_vec,9 T R# p" C- C) h# T" ]
UF_CSYS_WORK_COORDS, y_vec );1 C2 X. P0 r1 H# T5 J! |: @8 f
UF_CSYS_map_point( UF_CSYS_ROOT_COORDS, root_origin,
' B, a& r+ o$ ?9 P# V M UF_CSYS_WORK_COORDS, work_origin );# D4 M# T3 J% [+ b
UF_VEC3_sub( x_vec, work_origin, my_data.x_axis );
7 G/ o9 Y1 I" y2 w4 M9 Q f# | UF_VEC3_sub( y_vec, work_origin, my_data.y_axis );# [, M8 }1 v6 i( b0 \7 X
UF_MTX3_initialize( my_data.x_axis, my_data.y_axis,$ ?3 Y3 G, u/ l! c; d3 E* p
my_data.matrix );
G+ y; o1 @" P9 Y" B* s4 I5 y+ g UF_CSYS_create_matrix( my_data.matrix,
0 h4 V5 o+ C5 r0 N! Q. l' H6 }2 x; m, ` &arc.matrix_tag );, r0 v _; b* d% P3 R! a
do
, p5 a3 ] ]6 m+ ? {; U- i+ y# ~, ~9 D" k3 s. z
UF_CALL(UF_UI_specify_screen_position(! C- `7 Y# X7 u) `0 ^* b
"Specify arc center",
1 A! G/ G6 S# |+ y; n( j1 D NULL,
" m2 b9 t# o& `8 I/ f0 n NULL,9 r, [$ ^2 p0 H# B
my_data.abs_ctr,
# k" {: X! ^/ @0 K &view_tag,
8 R) A) N u/ R &ctr_resp ));
5 O3 l! v2 w7 f6 {9 X+ V if (ctr_resp == UF_UI_PICK_RESPONSE)
3 a) P3 _: `+ E+ J {
5 H3 A) a/ |" r: B /* Map the arc center to the arc csys.
9 ~2 I9 X) x" y, h */
8 h- i# b8 _6 _/ Q& L% r UF_MTX3_vec_multiply( my_data.abs_ctr,
* o Y% b) O: E. C! U! l my_data.matrix,$ `* E4 ~8 c' p- {8 P
arc.arc_center );
" i0 d. w j9 {6 R/ n UF_CALL(UF_UI_specify_screen_position(1 m4 m; D# T( M9 [2 A
"Indicate arc radius",
7 j' N: g* I. G% }* g* N (UF_UI_motion_fn_t)motion_cb,7 R7 V$ l: c6 \; o a V
(void *)&my_data,( [1 O' X; u4 H7 |/ L$ a: L q
arc_edge_pos," P8 `/ m( @4 Q
&view_tag,! {- E; T/ t. E6 o
&pos_resp ));9 D9 z/ h' G4 y" e) d0 V
/* If a position was obtained, create the$ K- I- C3 F0 n7 B' E6 F& }$ k2 S
* circle.! x2 N" G* G1 H0 d+ g
*/( W+ l9 N; K8 s! G2 ~5 O4 b
if (pos_resp == UF_UI_PICK_RESPONSE)/ [4 Q+ S+ @+ |1 h* l# m7 ^
{
# r% ~6 ^" T3 U7 ]' w' `1 |6 D& H UF_VEC3_distance( my_data.abs_ctr,1 C# ~9 o( X c+ h" w6 O
arc_edge_pos,
0 l, |/ j# {, u$ I! {. k! ]- X &arc.radius );
5 C, k% h1 _# J6 b- C UF_CURVE_create_arc( &arc, &arc_id );( }$ T6 V( c E
}1 C% `, {. w0 m: y
}
5 g( j% q0 H( A2 C } while ( (ctr_resp == UF_UI_PICK_RESPONSE) &&
, v- {7 L+ d0 ]" P/ `" r) S (pos_resp != UF_UI_CANCEL) );
) L& ~* a' \+ e& I7 O /* Restore the WCS if it was altered above.
) y+ x- a- R' k */: C. Z7 \/ |5 ?: K
if (default_plane != 5)' r" z5 `$ O/ [( k7 X+ b# C
{
7 {% J8 A( S% }- x) J/ Z UF_CSYS_set_wcs( saved_wcs );
: U4 m8 C9 Y! u' J UF_OBJ_delete_object( csys_id );
2 Q3 P& \ U8 ]6 @/ v% {" O }
: V+ a2 J# T8 r! A }; g; p) A5 S# ?! y9 t" e
} while (ctr_resp == UF_UI_BACK && plane_resp == 3);
9 Y; h+ k B* Z7 J5 K}
" U& l! ^% c( `4 c4 Q1 j) `" n/*ARGSUSED*/
, L5 X2 s& O7 J6 C2 _void ufusr(char *param, int *reTCode, int param_len)) C& Y/ ^6 r: H
{
. V& L+ }( L; x U if (!UF_CALL(UF_initialize()))) R! {5 C2 l% B
{
' o: P9 J; _, h+ i9 X- [9 |* t do_ugopen_api();. D4 ^; n8 @3 H1 N6 H* w9 ^% [
UF_CALL(UF_terminate());1 |% o9 m; [6 A6 r% {
}: W/ n* M! s& h
}
6 o0 K9 D: m& ~2 } J, U1 Y/ Iint ufusr_ask_unload(void)* @2 \- I; I! y$ Y
{7 E( g( y, [) ~9 q
return (UF_UNLOAD_IMMEDIATELY);
& @" X8 f0 r3 Z3 S( _3 l# O}
! w9 s/ ]' l# p3 O# ~* F7 b- Z0 c% O- w1 K) C& [
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