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: 8834|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:) I9 A1 u) w, A. [% w+ W( F6 }. T

) R( @; j1 D- {2 |( V  R public Object buildActions () {
  L. R" C- |1 y7 L) O9 ~    super.buildActions();7 D2 N" E& }5 y3 w
   
5 {# n0 T6 Z! d    // Create the list of simulation actions. We put these in
" j" y6 v# Z, I9 x: \* h, W& n! ~    // an action group, because we want these actions to be: i# ~  f- d/ ?
    // executed in a specific order, but these steps should
' ]6 S9 f* I4 Q2 B    // take no (simulated) time. The M(foo) means "The message
# X" v* k6 t4 g5 E4 q4 r    // called <foo>". You can send a message To a particular
) s  F) U" P4 f! B% p! N' i    // object, or ForEach object in a collection.
; d  l( }9 i/ y1 m0 M! e1 l        
3 L1 `9 I( P% a" v    // Note we update the heatspace in two phases: first run( e# A" [- M. }. E' _3 A
    // diffusion, then run "updateWorld" to actually enact the
1 F) W1 Y2 L% l1 _! K    // changes the heatbugs have made. The ordering here is
! k- t6 v( d" m" E2 m    // significant!5 I# p) v; w8 L3 w
        + ^; Y  ^- f8 L  w4 }. z
    // Note also, that with the additional
# F& O/ Y% e9 m& I" o- k% e    // `randomizeHeatbugUpdateOrder' Boolean flag we can1 L& k. a. A+ s+ ?, b
    // randomize the order in which the bugs actually run' |4 X% H6 Y, l' z; [& r
    // their step rule.  This has the effect of removing any  V! S1 D0 }" o! u6 d5 e  h" [# t% T
    // systematic bias in the iteration throught the heatbug) x. x/ n6 H! c( U0 m
    // list from timestep to timestep5 a3 X0 p; f. F' X$ z9 ~
        : a+ F0 P, {: p% H. O
    // By default, all `createActionForEach' modelActions have
/ D: ?" y* d5 x3 l4 S* x# A    // a default order of `Sequential', which means that the
4 F7 c5 y8 S5 w* r: a    // order of iteration through the `heatbugList' will be0 U* ~; L0 d0 }& a+ C2 h6 Z! S
    // identical (assuming the list order is not changed
8 v% Z6 _" V  b    // indirectly by some other process).
  v% ?) P* U" L& y% @2 {7 C2 J    6 v& _8 r3 T; f% J9 g
    modelActions = new ActionGroupImpl (getZone ());
4 k6 [, W1 k: s% J7 R- _; N' k$ [9 d/ o: P! h9 p2 O. X  u+ P
    try {  s! t  X5 r  y' ?1 Q
      modelActions.createActionTo$message2 H% j" i" E7 D& ?  Z( c6 G
        (heat, new Selector (heat.getClass (), "stepRule", false));
! u" _2 A" C  {2 P    } catch (Exception e) {9 K$ r" v/ w, y6 N  C
      System.err.println ("Exception stepRule: " + e.getMessage ());
9 a+ ~4 x0 O7 K6 ]/ N) E* |    }# Z# y7 p  E8 U! A; K
4 M7 ~$ j. |( e% I
    try {
8 e- ]" {  M  d6 S0 u5 U* q( C1 W      Heatbug proto = (Heatbug) heatbugList.get (0);* J) q' ?* Y4 m; c
      Selector sel =
0 n0 N4 P8 P9 Y: d- L$ `% J        new Selector (proto.getClass (), "heatbugStep", false);
4 x) |5 e& m; ]) @      actionForEach =
$ o* u7 W) n# m        modelActions.createFActionForEachHomogeneous$call
  `4 R; j" o  _1 T% X        (heatbugList,
/ C' U  ?( \( q3 h7 ~0 ]         new FCallImpl (this, proto, sel,
# ~$ r6 u2 w; M8 j                        new FArgumentsImpl (this, sel)));% N! y6 D: y% l) \4 m; q$ q
    } catch (Exception e) {, U' s: n4 J/ P& c" J
      e.printStackTrace (System.err);* E' X% S  M: P1 o* U" o
    }
  C2 l0 O* F8 w$ ?; }' H   
0 S: K+ F9 d' R1 U( ~    syncUpdateOrder ();+ F- Y5 p0 `" j! ~

( G% R. o8 p& c1 ~: `4 \. v+ {    try {
% n7 Y/ O3 ~. g0 \      modelActions.createActionTo$message
# w& a$ [* o8 _" C. r        (heat, new Selector (heat.getClass (), "updateLattice", false));
4 W& ^' m6 p% O  U' @- o& L0 V6 S4 E4 H    } catch (Exception e) {
( F% f8 D) C" j5 E# N      System.err.println("Exception updateLattice: " + e.getMessage ());
' S" V+ w2 m; @2 h5 u    }; Z5 k; |5 F, V' A$ L2 k
        
0 a0 a# V+ I0 E: B* v; I! y. U6 [    // Then we create a schedule that executes the4 |& o! d6 D4 [$ n; `: ]9 u
    // modelActions. modelActions is an ActionGroup, by itself it
/ f: b& x4 W; |* t- ^! E    // has no notion of time. In order to have it executed in
$ l5 m) s& Z) F0 v    // time, we create a Schedule that says to use the1 t: e# y# w" J+ k) U( V
    // modelActions ActionGroup at particular times.  This
  {: s0 v7 _1 S8 g' |& ~    // schedule has a repeat interval of 1, it will loop every! Y8 y# p# e4 X7 s9 Q5 i- p
    // time step.  The action is executed at time 0 relative to7 K( v2 h7 S2 R- G: o" f( s8 A
    // the beginning of the loop.
) Y3 v$ R( m6 P5 L' E' `4 `- d' U+ j; L+ d. M9 }3 v/ C
    // This is a simple schedule, with only one action that is2 m  \& w3 W4 N
    // just repeated every time. See jmousetrap for more6 z& N4 f" @4 m; t- [6 W9 }1 L
    // complicated schedules.' ~  S* F; ~% R5 f$ m- M$ R
  
* W. b" t! \, I    modelSchedule = new ScheduleImpl (getZone (), 1);) W! x; X8 ]+ h
    modelSchedule.at$createAction (0, modelActions);+ S1 s  D3 _9 p% T$ O2 S+ p4 m/ N
        / a& m- K! ~5 z0 w! y! @  d
    return this;4 ^8 X3 w3 b8 {) Y* z+ I( }9 {' f
  }
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, 2026-1-29 12:33 , Processed in 0.015088 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