如何避免 Tikz-Uml 关联中的虚线重叠？

Question

我正在使用 Tikz-Uml 包，当多个类实现相同的接口时，我不断收到重叠的虚线：

\documentclass[border=10pt]{standalone}
\usepackage{tikz}
\usepackage{tikz-uml}

\begin{document}

\begin{tikzpicture}
    \umlclass[x=-4, y=0]{First}{}{
        \umlvirt{+execute(): bool}
    }

    \umlclass[x=-4, y=-4, type=abstract]{Second}{}{
        \umlvirt{+execute(): bool}
    }

    \umlclass[x=2, y=-4]{Third}{}{
        +execute(): bool \\
    }

    \umlclass[x=2, y=-6]{Fourth}{}{
        +execute(): bool \\
    }

    \umlclass[x=2, y=-8]{Fifth}{}{
        +execute(): bool \\
    }

    \umlimpl{Third}{Second}
    \umlHVHimpl[anchors=west and east]{Fourth}{Second}
    \umlHVHimpl[anchors=west and east]{Fifth}{Second}
\end{tikzpicture}

\end{document}

结果：

如何避免第四类和第五类的关联中虚线重叠？

Answer 1

我认为可以通过调整 UML 元素的位置来手动解决。也许这种方法不太好，但很有用。

\documentclass[border=10pt]{standalone}
\usepackage{tikz}
\usepackage{tikz-uml}
\begin{document}
    \begin{tikzpicture}
        \umlclass[x=-4, y=0]{First}{}{
            \umlvirt{+execute(): bool}
        }
        \umlclass[x=-4, y=-4, type=abstract]{Second}{}{
            \umlvirt{+execute(): bool}
        }
        \umlclass[x=2, y=-4]{Third}{}{
            +execute(): bool \\
        }
        \umlclass[x=2, y=-6.1]{Fourth}{}{%previous y - 0.1
            +execute(): bool \\
        }
        \umlclass[x=2, y=-8.2]{Fifth}{}{%previous y - 0.2
            +execute(): bool \\
        }
        \umlimpl{Third}{Second}
        \umlHVHimpl[anchors=west and east]{Fourth}{Second}
        \umlHVHimpl[anchors=west and east]{Fifth}{Second}
    \end{tikzpicture}
\end{document}

结果