状態遷移図(ステート図)とは、システムの振る舞いを抽象化して表現するために使われます。This behavior is represented as a series of events that can occur in one or more possible states.
簡単なステート
ステート図の始点と終点は、 [*] で示します。 矢印は、 --> で示します。
@startuml
[*] --> State1
State1 --> [*]
State1 : this is a string
State1 : this is another string
State1 -> State2
State2 --> [*]
@enduml
ステートの表現を変える
hide empty descriptionを使用し、ステート枠をシンプルにできます。
@startuml
hide empty description
[*] --> State1
State1 --> [*]
State1 : this is a string
State1 : this is another string
State1 -> State2
State2 --> [*]
@enduml
The stereotype <<choice>> can be used to use conditional state.
@startuml
state "Req(Id)" as ReqId <<sdlreceive>>
state "Minor(Id)" as MinorId
state "Major(Id)" as MajorId
state c <<choice>>
Idle --> ReqId
ReqId --> c
c --> MinorId : [Id <= 10]
c --> MajorId : [Id > 10]
@enduml
Stereotypes full example [choice, fork, join, end]
@startuml
state choice1 <<choice>>
state fork1 <<fork>>
state join2 <<join>>
state end3 <<end>>
[*] --> choice1 : from start\nto choice
choice1 --> fork1 : from choice\nto fork
choice1 --> join2 : from choice\nto join
choice1 --> end3 : from choice\nto end
fork1 ---> State1 : from fork\nto state
fork1 --> State2 : from fork\nto state
State2 --> join2 : from state\nto join
State1 --> [*] : from state\nto end
join2 --> [*] : from join\nto end
@enduml
You can added point with <<entryPoint>> and <<exitPoint>> stereotypes:
@startuml
state Somp {
state entry1 <<entryPoint>>
state entry2 <<entryPoint>>
state sin
entry1 --> sin
entry2 -> sin
sin -> sin2
sin2 --> exitA <<exitPoint>>
}
[*] --> entry1
exitA --> Foo
Foo1 -> entry2
@enduml
Pin [inputPin, outputPin]
You can added pin with <<inputPin>> and <<outputPin>> stereotypes:
@startuml
state Somp {
state entry1 <<inputPin>>
state entry2 <<inputPin>>
state sin
entry1 --> sin
entry2 -> sin
sin -> sin2
sin2 --> exitA <<outputPin>>
}
[*] --> entry1
exitA --> Foo
Foo1 -> entry2
@enduml
You can added expansion with <<expansionInput>> and <<expansionOutput>> stereotypes:
@startuml
state Somp {
state entry1 <<expansionInput>>
state entry2 <<expansionInput>>
state sin
entry1 --> sin
entry2 -> sin
sin -> sin2
sin2 --> exitA <<expansionOutput>>
}
[*] --> entry1
exitA --> Foo
Foo1 -> entry2
@enduml
キーワード note left of, note right of, note top of, note bottom of を使用して注釈を定義することができます。 さらに、いくつもの行で注釈を定義できます。
@startuml
[*] --> Active
Active --> Inactive
note left of Active : this is a short\nnote
note right of Inactive
A note can also
be defined on
several lines
end note
@enduml
さらに、状態にひもづかない注釈を定義できます。
@startuml
state foo
note "This is a floating note" as N1
@enduml
Note on link
You can put notes on state-transition or link, with note on link keyword.
@startuml
[*] -> State1
State1 --> State2
note on link
this is a state-transition note
end note
@enduml
もっと注釈
複合状態にも注釈をつけることができます。
@startuml
[*] --> NotShooting
state "Not Shooting State" as NotShooting {
state "Idle mode" as Idle
state "Configuring mode" as Configuring
[*] --> Idle
Idle --> Configuring : EvConfig
Configuring --> Idle : EvConfig
}
note right of NotShooting : This is a note on a composite state
@enduml
Inline color
@startuml
state CurrentSite #pink {
state HardwareSetup #lightblue {
state Site #brown
Site -[hidden]-> Controller
Controller -[hidden]-> Devices
}
state PresentationSetup{
Groups -[hidden]-> PlansAndGraphics
}
state Trends #FFFF77
state Schedule #magenta
state AlarmSupression
}
@enduml
Hitchhiker's Guide
