Plantuml 两个类之间的几个箭头

Question

我试图绘制一个类图，其中两个类之间的几种关系是用多重性定义的。

默认情况下，结果很糟糕：

@startuml

class Movie {
    genres: String[]
    minutes: Integer
    movie_id: String
    rating: Float
    title: String
    type: String
    votes: Integer
    year: Integer
}

class Person {
    birthYear: Integer
    deathYear: Integer
    name: String
    person_id: String
}

Person "0..*" -> "1..*" Movie : acted_in
Person "0..*" -> "1..*" Movie : directed
Person "0..*" -> "1..*" Movie : produced
Person "0..*" -> "1..*" Movie : wrote

@enduml

使用 skinparam Nodesep 200 会好一点，但多重性仍然关闭：

我还尝试过使用 skinparam linetype ortho，它看起来很有前途，但一旦我添加了 hide Circle 和隐藏方法...

更不用说最终我还想添加一个关联类，这确实毁了它：

这是最终的代码：

skinparam nodesep 200
skinparam linetype ortho
hide circle
hide methods

class Movie {
    genres: String[]
    minutes: Integer
    movie_id: String
    rating: Float
    title: String
    type: String
    votes: Integer
    year: Integer
}

class Person {
    birthYear: Integer
    deathYear: Integer
    name: String
    person_id: String
}

Person "0..*" -> "1..*" Movie : acted_in
Person "0..*" -> "1..*" Movie : directed
Person "0..*" -> "1..*" Movie : produced
Person "0..*" -> "1..*" Movie : wrote
(Person,Movie) .. Role

class Role {
    name: String
}

@enduml

我的问题是：有没有办法用 PlantUML 正确绘制它？

Answer 1

我不知道如何直接达到更清晰的箭头布局的目标，但您可以通过使用 Person 作为四个子类（例如 Actor、Director、Producer 和 ScreenplayWriter）的泛化来避免该问题。每一个都有单独的箭头，它可能会让你的图表总体上更清晰（当然，后者取决于你的品味和图表的目的）

Answer 2

您必须使课程看起来更大，因此将有更多的协会渲染空间。没有Skinparam（唯一的一个是最小的）。但是有了一个技巧，您可以使班级身体更大。

planuml示例

planuml代码：

@startuml

skinparam ranksep 150
skinparam linetype ortho
left to right direction
hide methods
skinparam style strictuml


class Movie {
    genres: String[]
    minutes: Integer
    movie_id: String
    rating: Float
    title: String
    type: String
    votes: Integer
    year: Integer
    \n\n\n\n\n\n
}

class Person {
    birthYear: Integer
    deathYear: Integer
    name: String
    person_id: String
    \n\n\n\n\n\n\n
}

(Person,Movie) . Role
Person "0..*" - " 1..* " Movie : acted_in
Person "0..*" -> " 1..* " Movie : directed
Person "0..*" -> " 1..* " Movie : produced
Person "\n\n0..*" - "\n\n1..*" Movie : wrote

class Role {
    name: String
}
@enduml