设为首页收藏本站

最大的系统仿真与系统优化公益交流社区

 找回密码
 注册

QQ登录

只需一步,快速开始

查看: 11237|回复: 0

[求助] 问jheatbugs-2001-03-28中某些代码

[复制链接]
发表于 2008-5-25 02:15:22 | 显示全部楼层 |阅读模式
5仿真币
HeatbugModelSwarm中buildActions部分,3个try分别是做什么?查了下refbook-java-2.2,解释太简略,还是不懂,高手指点,谢谢!代码如下:+ Z5 S6 v6 ], L. k

. G. X1 {( i* }" _# x2 F) P, w public Object buildActions () {
& Z+ H: U$ ]; Z    super.buildActions();
5 p5 `% I: C! ~* ?# i    8 O- e) [7 _- a3 K" x
    // Create the list of simulation actions. We put these in
3 s& ]3 a! E+ M    // an action group, because we want these actions to be' Q$ O% u' e4 V9 |
    // executed in a specific order, but these steps should% R' c3 G# j3 \; A. D
    // take no (simulated) time. The M(foo) means "The message
% I" }) }& o7 J    // called <foo>". You can send a message To a particular$ f' m! M: u: X
    // object, or ForEach object in a collection.
+ X* K" [& q" z+ V1 R+ l        * V6 M- |7 i0 n) Y  e* g- @
    // Note we update the heatspace in two phases: first run9 Z8 _2 @5 @4 c" B
    // diffusion, then run "updateWorld" to actually enact the/ E& G5 b/ V0 M& h% v
    // changes the heatbugs have made. The ordering here is
' _7 P; _# S8 v. P! o+ a1 U* B    // significant!
, B6 a$ ]* F* z( d" ]5 L6 [        : d+ ?- c3 F; `+ y2 w( M3 b$ D/ H3 ?' |! x
    // Note also, that with the additional2 t3 L; J3 }+ X) L
    // `randomizeHeatbugUpdateOrder' Boolean flag we can
* J. P; V; E& Z, d) s    // randomize the order in which the bugs actually run; H8 P3 i* a  F6 @" Z) H0 ?
    // their step rule.  This has the effect of removing any  X9 q" I1 q5 T1 Y" [* S
    // systematic bias in the iteration throught the heatbug" r7 ?. S% C8 R5 R
    // list from timestep to timestep: [5 n# i0 ?3 b4 |( ^
        
7 R# h) y4 H) M( p- h    // By default, all `createActionForEach' modelActions have. m0 K8 c# n" n) J
    // a default order of `Sequential', which means that the$ g; {/ v$ m6 H" Z% L4 N
    // order of iteration through the `heatbugList' will be% K- q7 A+ i7 f% b' B; N- P
    // identical (assuming the list order is not changed3 O: m# X. e9 X7 D* \; N
    // indirectly by some other process).
/ _0 z* F9 w! N& d   
. a, ^9 w: c. t" u$ }0 e* N    modelActions = new ActionGroupImpl (getZone ());
: D0 X2 }( G( k; T
0 `* p) w* V( Z+ F0 z: \  U6 E- p: I9 V    try {
0 @, v) ^( `; Z* r/ `( j      modelActions.createActionTo$message
1 U# ~; B( r& Z2 G4 S( n        (heat, new Selector (heat.getClass (), "stepRule", false));
4 F* y0 Z& [0 m2 U& y& i5 h    } catch (Exception e) {3 A4 w" N8 F% q& i) P
      System.err.println ("Exception stepRule: " + e.getMessage ());7 u! _4 k, m5 |8 @0 G9 i
    }4 G: O* c1 [9 n

( p0 i% g( z+ T4 f    try {3 P0 V! ^8 k/ b! b5 q  w$ q0 J
      Heatbug proto = (Heatbug) heatbugList.get (0);
. W: j0 C2 S# a6 Y+ v- l( ~      Selector sel = $ v8 h$ O: H9 N' N: D- I  ]& L
        new Selector (proto.getClass (), "heatbugStep", false);' u4 r/ a8 y* C7 I* k
      actionForEach =) Y  `7 k% D. X5 }% E( l; W
        modelActions.createFActionForEachHomogeneous$call
# ^7 `2 D7 x7 G/ L  V        (heatbugList,: A1 m" P6 k. g+ u9 i1 k- i8 f0 a
         new FCallImpl (this, proto, sel,
* i# O# P! ^# p: Z9 _, D% K                        new FArgumentsImpl (this, sel)));3 v( o+ d1 \7 I8 A
    } catch (Exception e) {
) B/ X; S* H; ]. b/ |      e.printStackTrace (System.err);% C: ^* H2 D0 |9 q9 i% }7 _8 `
    }2 x: t' `2 n3 v# ~& I6 ~
   
) Z" B* z+ y0 w5 h6 g6 z+ x9 m7 v    syncUpdateOrder ();
% y8 ]7 H! W- |# @
. b* g; _- K- D. ~3 f) i4 {    try {7 ]) Q" b, @8 Y
      modelActions.createActionTo$message 9 k8 I& X6 K2 @( m; r, k
        (heat, new Selector (heat.getClass (), "updateLattice", false));
9 B2 E# [" D; u. n    } catch (Exception e) {
8 ~* w" i, n, X4 Y! G      System.err.println("Exception updateLattice: " + e.getMessage ());0 Z7 ?, j3 b; Z  W
    }' O7 j' E, B* Y
        
' |# q2 N' d5 o5 K4 I    // Then we create a schedule that executes the
6 s6 }, l- g" `; ]9 p& n1 T# B    // modelActions. modelActions is an ActionGroup, by itself it- j) B) S6 m$ w: y1 S
    // has no notion of time. In order to have it executed in  H3 i% L, C: _: I+ {
    // time, we create a Schedule that says to use the
/ }; \! C# l6 y0 `    // modelActions ActionGroup at particular times.  This
9 L- D+ _% E' u    // schedule has a repeat interval of 1, it will loop every8 I/ }/ q  r5 P1 s5 A0 u( Y
    // time step.  The action is executed at time 0 relative to
9 r4 U/ p5 k: F; W    // the beginning of the loop.. T: a) I6 A# z
- ~7 D! x( K( u
    // This is a simple schedule, with only one action that is, E* G. M7 N* E
    // just repeated every time. See jmousetrap for more! _6 v+ ^6 P. g
    // complicated schedules.
) d7 Q1 q5 {' x- R" O! `: q  
7 }$ y. H" w: k' M% p( P: }    modelSchedule = new ScheduleImpl (getZone (), 1);
* M0 x& s+ q$ s2 L$ r8 n  v$ O) _    modelSchedule.at$createAction (0, modelActions);
6 c/ Z- \( t& [0 m        # Y6 P" `0 w0 L% \
    return this;
2 R# e) ~) @8 h, C% L+ m# v- v  }
您需要登录后才可以回帖 登录 | 注册

本版积分规则

QQ|Archiver|手机版|SimulWay 道于仿真   

GMT+8, 2026-6-20 05:39 , Processed in 0.011670 second(s), 11 queries .

Powered by Discuz! X3.4 Licensed

© 2001-2017 Comsenz Inc.

快速回复 返回顶部 返回列表