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/*****************************************************************************
( e# e: g$ l! H, K**
0 c: \8 C9 T$ ~8 c0 |! n  }, d** test.c
**
5 C% ~2 F- N# M+ B** Description:
**     Contains Unigraphics entry points for the application.
1 U$ m1 q! T% `9 y5 U7 R8 O**
2 {% J" k5 x3 {5 l( `4 F*****************************************************************************/
2 u# @5 ^6 m- G( K) U  Q/* Include files */
#include <stdio.h>
#include <uf.h>
+ y" O9 F' W5 b2 j3 ]) j7 ~#include <uf_ui.h>
#include <uf_modl.h>
/ G' z& g/ d  d5 R5 c#include <uf_curve.h>
#include <uf_part.h>
: b) E0 ^  l7 F#include <uf_modl_types.h>
#define UF_CALL(X) (report_error( __FILE__, __LINE__, #X, (X)))
static int report_error( char *file, int line, char *call, int irc)
{
    if (irc)
    {
        char err[133],
+ j0 ~: r* z. L             msg[133];
9 e2 L* h! N  O: p- {5 F        sprintf(msg, "*** ERROR code %d at line %d in %s:\n+++ ",
+ \* q/ V+ R1 ~# V% T- ]            irc, line, file);
5 ]! r. W5 F: b! y8 |        UF_get_fail_message(irc, err);
        UF_print_syslog(msg, FALSE);
        UF_print_syslog(err, FALSE);
        UF_print_syslog("\n", FALSE);
        UF_print_syslog(call, FALSE);
        UF_print_syslog(";\n", FALSE);
        if (!UF_UI_open_listing_window())
2 r; }3 A( k+ T# J        {
6 B/ Z. \; c, c$ f5 \6 E            UF_UI_write_listing_window(msg);
            UF_UI_write_listing_window(err);
            UF_UI_write_listing_window("\n");
            UF_UI_write_listing_window(call);
  |! N. B* c- A# n6 d$ j" D0 _            UF_UI_write_listing_window(";\n");
        }
( c* c& i! {7 b# u3 C, }/ D    }
    return(irc);
( f9 B5 a! ^% M2 O6 U}
; ]3 V  `) I" N- h/ e
/*****************************************************************************
; z- h1 [+ p0 ^4 Z. s6 x**  Activation Methods
*****************************************************************************/
2 n0 k% Y4 d1 G: C7 p! K. o/ ?/*  Explicit Activation
# o) g* a. `, `**      This entry point is used to activate the application explicitly, as in
2 s/ I! t* K5 _( `' M1 K) p**      "File->Execute UG/Open->User Function..." */
) }) z  h. `8 K9 Qtag_t part_tag=NULL_TAG;
0 o0 G4 x  Z3 y' T( ]0 o5 `$ ]4 _tag_t tar_tag=NULL_TAG;
4 k$ H2 P7 \. }- }: n% Wdouble origin[3]={0.0,0.0,0.0};
char *height="30";
char *diam="100";
double direction[3]={0.0,1.0,0.0};
4 y" j: V! E% S  d: z8 z" Mtag_t cylinderfea_tag=NULL_TAG;
uf_list_p_t edge_list=NULL;
/ ^2 }( \, E/ u0 \  G4 Uint edge_count;
; _" N$ [* V# T5 Y: ^char msg[256];
int i=0;
tag_t edge_tag=NULL_TAG;
' f( m# k/ P- |' O" {; t# Ztag_t curve_tag=NULL_TAG;
/ o9 v3 j5 D& f0 U+ _tag_t point_tag=NULL_TAG;
/ o3 k8 R/ E) Q* h7 h! htag_t line_tag=NULL_TAG;
8 ~9 Y- Y0 c9 k' f* G( d' Stag_t point_tag2=NULL_TAG;
! _% J4 J  r3 Fdouble cen[2][3];
/ z8 u, C5 {. X# V- s. jUF_CURVE_line_t line_coord;//最好不要定义为指针
% }! c, c; A% R0 P1 s1 Pextern DllExport void ufusr( char *parm, int *returnCode, int rlen )
{
    /* Initialize the API environment */
+ ]6 s( k- E/ S" X  q    if( UF_CALL(UF_initialize()) )
  a& `+ C- V2 r( Q! v* m2 ~' n/ o    {
9 u6 v; E9 b6 T8 T1 }0 \        /* Failed to initialize */
        return;
7 \4 b6 {1 u; |3 P  ]2 B    }
! j# v- v' C+ u2 f* q, p: C   
* C- X$ X4 M* d- |! ?1 E4 k9 ]    /* TODO: Add your application code here */
7 z0 I8 k, W) T* {0 U, N; c5 d //1.create a new part
1 L. D) Z4 t5 X* F; Y UF_PART_new("C:\\NX_work\\cylinder.prt",1,&part_tag);
//2.create a new cylinder
* W# r/ e9 D# G) l UF_MODL_create_cylinder(UF_NULLSIGN,tar_tag,origin,height,diam,direction,&cylinderfea_tag);
//3.get the edge list
UF_MODL_ask_feat_edges(cylinderfea_tag,&edge_list);
) v# l+ l0 H* V8 h3 u7 D& n //4.get the edges
) |' A3 I; g0 a: c. i3 a3 v UF_MODL_ask_list_count(edge_list,&edge_count);

4 d* @$ Q3 }) m //5.get the centers
for(;i<edge_count;++i){
; V( R9 ~, L! i: J# y  UF_MODL_ask_list_item(edge_list,i,&edge_tag);
$ e4 H( |. d* s! k6 d- u+ ?  //UF_MODL_create_curve_from_edge(edge_tag,&curve_tag);
4 z" U5 W, S* @) D  a3 P* ^3 x, g  UF_CURVE_ask_centroid(edge_tag,cen[i]);
/ {; m& f# D0 a# Z7 [9 q }
//6.create line
; S% _' h6 Z0 r% j! } //UF_CURVE_create_point(cen[0],&point_tag);
//UF_CURVE_create_point(cen[1],&point_tag2);
line_coord.start_point[0]=cen[0][0];
line_coord.start_point[1]=cen[0][1];
line_coord.start_point[2]=cen[0][2];
/ Y* e3 E9 q& P) s line_coord.end_point[0]=cen[1][0];
line_coord.end_point[1]=cen[1][1];
" j% U  D( n: a/ g2 Q line_coord.end_point[2]=cen[1][2];
0 N0 f1 u8 [" I3 P. q UF_CURVE_create_line(&line_coord,&line_tag);
4 ~/ Y% B$ X2 ?% g7 { //UF_MODL_ask_list_item()
5 g# X" d# j* W  d8 |; G/ V    /* Terminate the API environment */
    UF_CALL(UF_terminate());
+ }# X4 j9 x5 E" |9 b}
/*****************************************************************************
4 \4 x# A2 U- ~* o: y+ y4 v8 x# ]**  Utilities
. `' |: n4 P: L9 E9 _( e" r- M*****************************************************************************/
/* Unload Handler
**     This function specifies when to unload your application from Unigraphics.
**     If your application registers a callback (from a MenuScript item or a
( N# j8 [' O' Q# b" R5 J, J**     User Defined Object for example), this function MUST return
  E* [9 w) o4 j3 m# _3 D**     "UF_UNLOAD_UG_TERMINATE". */
2 F- D( F1 I+ N% e/ M% Rextern int ufusr_ask_unload( void )
{
    return( UF_UNLOAD_IMMEDIATELY );
}
" [5 n5 y9 E7 v2 q( c! R. H& O* g

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继续加油哦 ！！！