全球FlexSim系统仿真中文论坛

标题: flexsim代码区起始部位代码解析 [打印本页]

---

作者: zorsite    时间: 2013-9-12 13:51
标题: flexsim代码区起始部位代码解析


在触发器中常会看到顶端已经自动写好的一些代码,通常如下:　

1. treenode current = ownerobject(c);
   & s  L+ }! h( m. n: q
2. treenode item = parnode(1);
   
3. int port = parval(2);

复制代码

　
/ e( T1 M+ o! G0 J; a5 m意思大概是声明了三个变量,current表示当前实体,item表示当前临时实体,port表示端口。
在接下来的代码中可以直接引用这三个已经声明好了的变量。
对于初学者来说，这段神奇的文字就像各种分布一样让人不解其意。
下面是我自己的一点不成熟的理解，有些地方也不明白，可能理解有误的地方，请大家帮忙释疑、纠正、完善。

treenode
Variable Types
Flexsim uses just four variable types. Each of the four types can also be used in an array structure. The following explains each of these types.
/ K+ B% E8 }) t+ C. |# i& EType Description
int  integer type  
- N/ ]0 x' M, \5 m  Edouble  double precision floating point type  
string  text string  
treenode  reference to a Flexsim node or object  
flexsim中有4种类型的变量：int,double,string,treenode。treenode指的是flexsim中的一个节点或者一个实体。

current<no parentheses>
Description:  
Deprecated. This should not be used as a special command with the setcurrent command anymore. Instead, declare a treenode variable type as current, then use current in your code as any other variable type.
( r8 e3 h; l1 J4 ~1 |不建议使用。current和setcurrent不应再被用作命令。如果需要设置某实体为当前实体，应先声明一个名为current的树节点型变量，然后在代码中引用该变量。
不解:
: A/ \3 I; e1 k, ~1.used...with....是什么意思?
以前current是必须和setcurrent一起使用的吗?

2.as any other variable type是什么意思?
% c5 E# h. J2 [" T; N+ M前面说要声明一个名为current的树结点型变量,然后在代码中可以把current作为任意类型的变量使用?可以用为string型变量吗?
Example:

1. treenode current = rank(model(),3);
   
2. pt(getname(current));

复制代码

　
This sets the object that is ranked 3 in the model to current and prints its name to the output console.  


* m" e- X- z* X0 N* S7 T( ?: \ownerobject(node thenode)
% r* u9 U5 y- b8 f+ X) Y. iDescription:
This command returns the node with object data attached to it that is the start of the sub-tree that thenode is in. In other words, it returns the object node that contains thenode.
( }  F% N2 V% n+ I8 }0 w/ c8 jThis command is used in most code fields and trigger fields to set the access variable current. In these fields, c references the node that contains the code, and ownerobject(c) references the object that "owns" that node.
* J5 n) v" @2 N0 Z' g该函数返回参数节点所在的实体。

5 y9 k2 K* C2 {5 Z5 O3 |0 Y# f2 R! AExample:

1. string objname = getname(ownerobject(c));

复制代码

　
This sets objname to the name of the object that contains the node referenced by c. The c usually refers to the node where the code is being written.　　　

1. treenode current = ownerobject(c);

复制代码

　
& ?% _" L8 K9 T8 h3 XThis example is present in most code fields in Flexsim, and retrieves access to the "current" object.
这段代码出现在大多数flexsim代码的开头部位，指的是“当前”实体，就是代码所在实体。
7 K% m& H9 a6 j
6 X1 T) l: L+ D8 h" Pc<no parentheses>
Description:  
This command is used to reference the active node during a function's execution.
If the function was called using nodefunction(), c returns a reference to the node on which the function is written.
# n$ i' j) o& X. K" ~If the function is an event function, c returns a reference to the object that contains the event.
c在函数执行的过程中指向活动实体。
% ]: s1 k  v2 d' D2 @, o如果是节点型函数，c指向函数所在实体，
如果是事件型函数，c指向事件所在实体。
Example:　

1. treenode current = ownerobject(c);

复制代码

　
( h% I, t8 v9 o+ S  s3 |
setcurrent(thing)
Description: Deprecated. Do not use.
Example: /
& f+ N; l# K  e5 `此命令不再使用。
: `! G1 A) {- ~
7 O* H  u# J) Z3 l/ H# v6 Ditem<no parentheses>
/ d% C  `) x4 h; }' HDescription:  
' x1 k! A* l# G8 p0 B- UDeprecated. This should not be used as a special command with the setitem command anymore. Instead, declare a treenode variable type as item, then use item in your code as any other variable type.
不要再使用item和setitem命令了。如果需要指向某一临时实体，应该先声明一个名为item的树节点型变量，然后在代码中引用该变量。
2 M2 Y  t6 S* S, E  c: }- DExample:　

1. treenode item = rank(model(),3);
   7 \8 P- {, S% W" w7 L+ Q; I
2. pt(getname(item));

复制代码

　
- {; u7 a/ p& q4 rThis sets the object that is ranked 3 in the model to item and prints its name to the output console.  

; V& Z$ S' r7 B/ x
setitem(thing)
Description: Deprecated. Do not use.
Example: /
* s* G0 w: k( w# o此命令不再使用。

: k0 b5 f' ~3 W' K) Lparnode(num index)
Description:  
This command is used inside a function that is called by the nodefunction() command.
此命令用在一个被nodefunction调用的函数中。"nodefunction() command"指的是什么?command和function有何不同?
It returns the parameter passed to nodefunction specified by index as a node (or treenode).
此命令返回一个节点(或树结点)参数.该参数由序号指定,并会传递给nodefunction.
  q" ?1 @  R5 E节点和树节点有何不同?
. x+ K; K; Z* F2 ^4 n5 n6 Y3 UThe first additional parameter passed to nodefunction() is parameter 1, the second is parameter 2, etc.
2 V. p* |( @2 t0 D1 }parnode,parval,parstr这三个命令真是让人搞不懂啊．．．
Parameters can also be retrieved using parval() and parstr() for casting them as numbers and strings respectively.
1 m. o3 ?8 u2 Q- z- N& wExample:
6 w1 X9 o) s- d; ?  X$ B) o) bIf a trigger/field is called with:
; H; @8 |/ U! k+ gnodefunction(thefuncnode, item)
6 N7 N% g; x( h$ Qthen within the trigger/field, getting access to the item passed as the first additional parameter would be done with:

1. treenode item = parnode(1);

复制代码

　　

port<no parentheses>
Description:
Deprecated. This should not be used as a special command with the setport command anymore. Instead, declare an int variable type as port, then use port in your code as any other variable type.
7 o( R; `) H5 o8 x$ d  CExample:
& n* |5 f5 `: j5 z" m

1. int port = parval(3);
   # G- h. B1 x$ H
2. pd(port);

复制代码

　
This sets port to parval(3) and then prints the value to the output console.

不推荐使用。port和setport都不应再作为命令来使用。如果在代码中需要使用端口,需要声明一个名为port的整数型变量，然后在代码中直接使用port作为变量。

---

作者: 天性518    时间: 2013-9-17 13:56
1# zorsite
% T8 m9 F4 u, d/ r
* R0 p* `3 |5 b& d
首先谢谢加老师分享，我在这里也补充一下，对于加老师你讲到的”c“，我们一般都是在代码框和做GUI时会遇得多些，下面我具体讲一下他们的区别。
    首先在GUI中，它是这样的，如下图：[attach]1559[/attach]
而在代码框中却是这样的，如下图：[attach]1560[/attach]

---

作者: fl2014    时间: 2014-8-10 18:29
大神啊，解决了我多日的困惑

---

作者: 1010265352    时间: 2014-8-11 13:56
额，很值得一看

---

作者: 一骑绝尘    时间: 2014-8-20 10:01
C 一扫疑惑，  但parval()，parnode() 还是有点不解

---

欢迎光临 全球FlexSim系统仿真中文论坛 (http://www.flexsimasia.com/)

Powered by Discuz! X3.3