42 lines
906 B
Plaintext
42 lines
906 B
Plaintext
@startuml UseCase
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left to right direction
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actor User
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rectangle 编辑图形 {
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usecase "鼠标左键选择某个图形" as edit1
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usecase "鼠标左键更改某个图形的大小" as edit2
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usecase "鼠标左键更改某个图形的位置" as edit3
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usecase "手动更改某个图形的某个属性" as edit4
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}
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User --> edit1
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User --> edit2
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User --> edit3
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User --> edit4
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rectangle 创建图形{
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usecase "选择要创建的是什么图形" as create1
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usecase "自定义创建的图形的大小" as create2
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}
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User --> create1
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User --> create2
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rectangle 整体操作{
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usecase "读取文件" as total1
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usecase "保存文件" as total2
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usecase "放大屏幕" as total3
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usecase "移动屏幕" as total4
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usecase "Undo" as total5
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usecase "Redo" as total6
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}
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total1 <-- User
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total2 <-- User
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total3 <-- User
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total4 <-- User
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total5 <-- User
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total6 <-- User
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@enduml |
