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* v5 U; I8 Q' `1 ?: G u/ RNX二次开发源码分享:动态画圆,指定屏幕点和向量相关用法
7 g8 u, v, B4 a
# q0 ^: H/ D7 ~
# b, y+ O- X6 K1 m3 p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!* \$ r' q( J4 S* \( ]' u4 g' [+ I
; y) p& J$ G' s* W" V y#include <stdio.h>4 x9 @1 s& i' V& p
#include <uf_defs.h>
+ b) A6 e1 B9 ?" G x; M#include <uf.h> H g# d/ m$ E
#include <uf_ui.h>
( B4 e$ k; k7 n# q) G#include <uf_csys.h>
. ~, s: E1 V c/ F2 I#include <uf_vec.h>
- |" G' F& `6 s3 n. N+ c#include <uf_disp.h>4 ]$ r& W# R4 K
#include <uf_curve.h>
2 I: j- ]( V# g7 {7 D# D3 q6 ~4 `#include <uf_mtx.h>/ T2 E( P# V( z+ m
#include <uf_obj.h>
0 X6 W9 W! b# y" \. e- A& ktypedef struct
0 _8 q- J( X3 p% |8 I( f { UF_CURVE_arc_t *arc;) I1 ?. E7 b& i( J, f8 e% B
double abs_ctr[3];/ h' Z8 ^: o; p) Z) `3 B/ p
double matrix[9];3 y. U- O- b \: V( k9 |
double x_axis[3];' F# F% a/ |9 l C& C+ n% H1 }
double y_axis[3];
/ t% E2 S1 p" N; N6 q, s } my_motion_data_t;4 y4 ~* z+ S8 |* I
/* Define a motion callback to render a visual representation of
+ V J2 q2 D) ]. ? * the circle to be created, along with a bounding box around the& F+ n) o- R9 k
* circle, an arc of radius 1.0, and a "rubberband" line from the
: z! R8 O- P4 n8 z2 ~- X * center to the cursor position.) h1 F+ e5 G5 D: q1 I
*/- R0 b( A% H! ]3 d
static void motion_cb( double *screen_pos,
, m9 o& V3 F+ U. r0 k3 j UF_UI_motion_cb_data_p_t motion_cb_data,
6 O7 s9 X' c. P6 d my_motion_data_t *my_data )* {; g% H- y5 T8 }: [5 o# o n# k
{
1 N7 ~9 W& ~5 T% t7 \* ~4 @ double radius, pos_array[5][3];* F, A9 L/ S4 Y+ t R5 }0 |! C
double xrad[3], yrad[3], x_y_vec[3], x_ny_vec[3];# ]4 H4 F# |, g4 ^
/* Calculate the arc radius: the distance from the arc center- v7 F5 W+ r8 B
* to the current screen position.
& f0 Q, [0 S7 ^, [0 Z7 N4 y8 \- ~' _ */
- n6 f8 K2 P6 h% H$ D UF_VEC3_distance( my_data->abs_ctr, screen_pos, &radius );5 O! Y) ?* E' a$ N
/* Map the arc center to the "csys of the arc".: T0 m* \$ F k8 l' [
*/
4 k+ B+ {! [$ T UF_MTX3_vec_multiply( my_data->abs_ctr,' F1 B; r% [* f- d' T
my_data->matrix,1 z, [5 B- _# c( }. [
my_data->arc->arc_center );
7 \" j# K5 m' Q, F7 Y) V/ W /* Draw a circle and an arc in the view of the cursor.
, u1 `2 B- w2 b2 l */3 n5 E& Q( B1 { {0 G1 j
UF_DISP_display_ogp_circle( motion_cb_data->view_tag,
( H4 M+ T' ?! M my_data->matrix,
2 W6 Q: |1 U( l+ I. v1 O0 i8 L+ j my_data->arc->arc_center,
' d* I) L) U2 W# g3 [+ a9 L radius );) w& j- w' [9 ?- `; i& l7 Y
UF_DISP_display_ogp_arc( motion_cb_data->view_tag,
6 O* i' Z3 E4 A, N! ?6 u2 w; t0 D my_data->matrix,
; r" v) ?2 p' E$ Z. h 15.0*DEGRA, 345.0*DEGRA,
4 J% G# D& r1 {: l# s2 L: Q my_data->arc->arc_center,& m3 S" ~/ H$ c* I9 U# T
1.0 );
# F9 F2 T& E* ^# A /* Draw a bounding box around the circle.
1 J) I; A$ S1 b7 C+ k */9 x/ j$ E. f5 H% p4 ^5 q- |
UF_VEC3_scale( radius, my_data->x_axis, xrad );6 g$ T/ X( F/ z" e
UF_VEC3_scale( radius, my_data->y_axis, yrad );
0 _% E( Y3 S) o1 F UF_VEC3_add( xrad, yrad, x_y_vec );0 M m0 Q! N3 z Q
UF_VEC3_sub( xrad, yrad, x_ny_vec );2 N' O9 D# x1 S" a
UF_VEC3_add( my_data->abs_ctr, x_y_vec, pos_array[0] );" g8 \, f; K* _, d0 Z$ m
UF_VEC3_sub( my_data->abs_ctr, x_ny_vec, pos_array[1] ); u3 w" V; q% L" ]
UF_VEC3_sub( my_data->abs_ctr, x_y_vec, pos_array[2] );
0 B& D. H4 F% z$ M6 p+ { UF_VEC3_add( my_data->abs_ctr, x_ny_vec, pos_array[3] );
( `* n& b" x6 u& V0 n# B UF_VEC3_add( my_data->abs_ctr, x_y_vec, pos_array[4] );; r9 X% l1 V3 _: y2 B' I6 p7 W9 T
UF_DISP_display_ogp_polyline( motion_cb_data->view_tag,3 t. W I$ I# ?+ a# |% `' Y" a
pos_array, 5 );0 D" G2 U) R0 i$ v) k6 [0 w' [1 E
/* Draw a "rubberband" line from the circle center to the
- O. f. M% D# E* B+ }0 K, V5 x * cursor position.
$ u1 {3 N2 ` ~* u- ^ */: x$ |# E- @/ T% |8 _0 U
UF_DISP_display_ogp_line( motion_cb_data->view_tag,
/ h2 p4 Y- D& J4 P my_data->abs_ctr,
- }' `4 y* _0 m1 t$ {- ] screen_pos );4 u- T8 q* b9 b& y
}
" s3 z( y+ L5 L* B9 V) X# Y#define UF_CALL(X) (report( __FILE__, __LINE__, #X, (X))) `8 y- y+ H. Z
static int report( char *file, int line, char *call, int irc)
; f4 v* t" x' l F! b% k{0 ]: O! Y' x3 l
if (irc)
; S- H9 J# R3 |& a5 I7 l+ d& D( G( R {) h- G) \( ]) Q, E+ k/ b
char messg[133];0 D' [$ S H! r3 B
printf("%s, line %d: %s\n", file, line, call);
$ q( l' F R) H1 P+ C (UF_get_fail_message(irc, messg)) ?
! G8 b6 P+ {+ X% w6 [ y printf(" returned a %d\n", irc) :
3 F( t' }( i6 J2 U: P& ^# h printf(" returned error %d: %s\n", irc, messg);
; R. ~% o P0 |6 D0 S }
: `) y. b4 K" Y8 @ return(irc);8 q2 |' x/ V: j7 \/ u5 l& b
}
) l6 u2 m8 t. v0 m% W8 G7 dstatic void do_UGopen_api(void)3 {0 a; b8 w7 B2 x6 B6 G) d3 K
{
8 @* z$ a- f$ J2 e/ s int default_plane;2 r' P) t9 {' M2 \" \0 x
int plane_resp, ctr_resp, pos_resp; h. m7 c8 X3 s* `$ B7 c. C
tag_t plane_tag, saved_wcs, mtx_id, csys_id,7 y: d J8 C7 ` Z1 Q# h& \! Z) g
arc_id, view_tag;
$ J* C6 i. ~3 h% c$ H+ |3 c* W double plane_matrix[9], plane_origin[3],, \9 N+ C% B3 c7 y" ]: n
x_vec[3], y_vec[3], arc_edge_pos[3];9 W; S+ D$ v1 r$ d' E) q3 o
double root_origin[3] = {0.0, 0.0, 0.0};
+ G. @6 T9 P% F4 N4 M double work_origin[3];4 ?' m8 J- J" N* [
UF_CURVE_arc_t arc;
9 f7 }* g {/ _% }% s7 ~1 b1 p" f* f, H9 x my_motion_data_t my_data;* Z, [- |9 F7 n$ N; K
- w- d' v- C7 a% R7 E a
my_data.arc = &arc;
0 g- W- d6 _4 A# d' p$ f9 \ arc.start_angle = 0.0;4 o$ Y Z2 _- z/ w: T) C* \
arc.end_angle = TWOPI; /* Create a full circle. */7 C" s+ E& w9 f; ]1 _7 h* \
default_plane = 5; /* Default plane = WCS */8 u9 t) o. Q6 v$ J& i
do& T! c7 {( ~$ U9 J# E- |
{
. t6 Y& z& ]8 f /* Specify the plane on which the circle is to be created.# T. f, N/ _- W1 T0 U; P* @+ F% I. I
*/
8 R+ b% s3 I, m4 [8 J" W UF_CALL(UF_UI_specify_plane( X w U) p A# E* G% b5 t
"Specify plane for circle creation",
g* U# F6 w2 ~' {5 E &default_plane,
; g# w, [ l* M0 U) Q2 ^ 1,# q( }! X/ [7 h% _
&plane_resp,/ b) Y+ h/ q6 p! a0 ?8 j
plane_matrix,9 W2 v; H+ F8 W. t! g8 X. K: Y# r
plane_origin,! E" C" h+ X1 D4 h; a! ^
&plane_tag ));0 R- E; L$ y6 K# A+ s: f, c# D8 ?9 X5 [
if (plane_resp ==3)7 I8 A9 t9 \% \/ s. n
{
% K8 u- z: W0 t/ A! J) L4 k /* Save the current WCS for future restoration.
# H0 ~- A H6 p3 s3 ]- E( T# W2 D */3 G# Z1 r! B" L/ B r- d* J5 v
UF_CSYS_ask_wcs( &saved_wcs );
! P# }3 r$ b+ {4 ?5 n* F7 P /* Move the WCS to the specified plane. This is
" ~$ c2 ]/ M! |' C" ?2 \/ `7 r" J2 b * necessary because the position passed to the motion, N6 I& ^- |: c& l# s( N7 e
* callback, and the position returned by
( r( z3 D6 k- {+ \$ K& G7 ? * UF_UI_specify_screen_position, is the screen
+ p2 d' b; Z- i$ G- l; v; H * position projected onto the WCS XY plane.
8 l. L. i( J# _6 Y */. h6 \% Q% o2 ^0 z0 {8 ]2 m
if (default_plane != 5)2 U& { b1 Y% k
{0 i3 O! B g/ |' a) e5 o+ G
UF_CSYS_create_matrix( plane_matrix, &mtx_id );
- N+ z- ?6 q, R: j UF_CSYS_create_csys( plane_origin, mtx_id,
6 \. [% T ^7 A2 D6 u4 Q &csys_id );
* X' R. O. g* s* m UF_CSYS_set_wcs( csys_id );
% }7 ]' n, z7 g/ I }
; C6 g0 F0 p" t* W# } /* Obtain unit vectors and the arc matrix relative to
! _7 @2 q4 o& u5 e. F/ T' t * the Work Part coordinate system.% X9 N2 c( o8 @- N3 f: F( D6 s
*/
: R/ D1 v4 K+ _. g, S; h1 ` UF_MTX3_x_vec( plane_matrix, x_vec );
8 }5 J2 y) s$ G/ m+ ]* k UF_MTX3_y_vec( plane_matrix, y_vec );9 O, E4 w/ K/ D$ y5 y6 I
UF_CSYS_map_point( UF_CSYS_ROOT_COORDS, x_vec,
[; Y7 L" \. j7 `$ f' [" j$ u UF_CSYS_WORK_COORDS, x_vec );) L! |0 l8 H f0 B4 s& F1 b
UF_CSYS_map_point( UF_CSYS_ROOT_COORDS, y_vec,3 I5 V$ B" C( @* Y6 E
UF_CSYS_WORK_COORDS, y_vec );9 q3 ?& @3 [) k* c! H; p
UF_CSYS_map_point( UF_CSYS_ROOT_COORDS, root_origin,
# V8 j- t3 D1 b- ^0 R: R UF_CSYS_WORK_COORDS, work_origin );/ _9 H- x+ z# t
UF_VEC3_sub( x_vec, work_origin, my_data.x_axis );' Y; |1 s, `' X8 z- z6 z2 M
UF_VEC3_sub( y_vec, work_origin, my_data.y_axis );; j& ]2 O) S" L5 t4 }. R
UF_MTX3_initialize( my_data.x_axis, my_data.y_axis,
( q$ I& Z6 p. a7 Q9 M my_data.matrix );! S0 P1 ~6 A; f7 @1 s) h7 H
UF_CSYS_create_matrix( my_data.matrix,
) L( k' t% J, F0 S* H+ @) k9 o &arc.matrix_tag );+ A( Z* q t6 O% F
do) H' w S0 t+ c
{
6 h0 n D; e: `3 l UF_CALL(UF_UI_specify_screen_position(
; f$ {6 M; w* v* H4 m! R "Specify arc center",
4 H7 q' K) R/ Q$ N* U NULL,6 g4 l' k( ]' x+ Y# P
NULL,
6 k; l0 }4 _2 V N1 Y my_data.abs_ctr,) [% `; U v, P- O: m: {
&view_tag,% @/ _. n; z2 M f7 T& p' Y0 V' o
&ctr_resp ));$ f; v1 c7 M2 U: h, [
if (ctr_resp == UF_UI_PICK_RESPONSE)( v, d1 X) ^, m2 x
{/ ~6 {" a" v+ _2 D8 _
/* Map the arc center to the arc csys." x2 R' |8 g) h4 M ]' ~+ c5 b
*/
8 G# S' V$ K2 D; C" M- A2 b UF_MTX3_vec_multiply( my_data.abs_ctr,
3 Z4 {! h5 N, B4 Q my_data.matrix,
- H- ?4 \' E t8 S* V9 A% R arc.arc_center );
* W7 \ }& _/ H+ A2 X UF_CALL(UF_UI_specify_screen_position(/ M9 o% m, y- c4 c. a; J) }% ^
"Indicate arc radius",3 _1 N! F9 V# w) b4 Y; i
(UF_UI_motion_fn_t)motion_cb,! _! E2 t& w+ Z' h( Z, q3 \! ]) S
(void *)&my_data,
; i$ ?( u3 H, p3 A) t& K5 a arc_edge_pos,
7 X- O# L8 v4 f- Q- e( s &view_tag,
+ p& v' O, r/ Q B9 b &pos_resp ));* m$ C# P: H- m5 h% T8 Z
/* If a position was obtained, create the/ [1 |) R ~1 \
* circle.5 t" `8 p- g+ f4 G! p$ g7 B
*/
6 g4 A, V& I: y+ [8 r/ v; A' D if (pos_resp == UF_UI_PICK_RESPONSE)0 z |8 m# R9 A) w, N Z
{
2 ?9 x& P# i" B UF_VEC3_distance( my_data.abs_ctr,) n K5 t, Y7 G: t$ S+ p/ P
arc_edge_pos,! L- c. S; ?* F% R
&arc.radius );
1 E. P+ j4 s) ^* S7 r! A UF_CURVE_create_arc( &arc, &arc_id );
8 T4 ^0 Q* [. A }
8 ~0 J: T. r( k9 ]. I( ?( v }! ^1 r3 c+ y) V& c5 o: d
} while ( (ctr_resp == UF_UI_PICK_RESPONSE) &&
r1 m+ l3 R+ P9 K2 ?3 x1 s (pos_resp != UF_UI_CANCEL) );
7 n, l# k9 c1 I) V /* Restore the WCS if it was altered above.) o% p& k9 Z" H2 N- l$ W+ Y
*/$ v) @4 Y( P$ |$ i6 \+ o; q, r! F
if (default_plane != 5): L/ O+ L4 ~1 a: z
{
% R; }2 e" K2 ^ UF_CSYS_set_wcs( saved_wcs );
2 U+ i9 {" k- N3 s9 X UF_OBJ_delete_object( csys_id );
! l- O9 U& m5 y, m }
+ n8 X$ n+ W7 o+ p- Z }! k$ r( K5 F* _
} while (ctr_resp == UF_UI_BACK && plane_resp == 3);. H$ K6 G; B7 }$ ]- |& v8 n
}: T4 E" U8 A$ N. U3 A& n
/*ARGSUSED*/
: l9 m) r% |) p3 F- T$ @& u. }' ]void ufusr(char *param, int *reTCode, int param_len)# Z$ Q: U1 x- h
{/ O" A$ y( k; ^- `, q' p2 Z5 ]
if (!UF_CALL(UF_initialize()))( Z8 ~2 p) b( }2 a
{
) }$ K# V3 B8 w2 W; q8 K* \, Z" n do_ugopen_api();+ ?- }/ S/ S. P, o# w+ d
UF_CALL(UF_terminate());
" H6 A; N. C' ~5 Q- Q9 \6 X }
0 {9 V" E4 I1 O7 l6 K/ r( `}
) c d3 W/ w% Z& O5 hint ufusr_ask_unload(void) w9 p& z5 y8 i$ R, U- C; R
{1 D/ G! O; x- v8 j& q0 |2 y
return (UF_UNLOAD_IMMEDIATELY);
& P2 @: b- q, J, N1 n}7 I! W+ @% S, i5 E( R* o% i) E1 U
+ I6 b6 k- [( e7 g9 T
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