Graphviz图谱模板

digraph G {
    /*全局设定*/
    graph [label=".dot图例-元素约定",
        labeljust="l",labelloc="t",center=1,
        ranksep=0.2,ratio=compress,
        rankdir=TB,
        ];

    node[fontsize=10.0,
        height=0.1,
        style=filled,fillcolor=snow,
        color=darkolivegreen,fontcolor=darkolivegreen,
        shape=plaintext,
        ];

    edge [fontsize=9.0,fontcolor=yellowgreen,
        color=gray30,
        ];

    /*图元声明*/
    start       [label="流程开始/结束",shape=point];
    end         [label="",shape=doublecircle,fillcolor=red];

    box         [label="实体/对象",shape=box];
    ellipse     [label="行动/节点",shape=ellipse];
    egg         [label="用户/人物",shape=egg];
    plaintext   [label="状态/属性",shape=plaintext,fillcolor=whitesmoke];
    diamond     [label="判别",shape=diamond];
    note        [label="注释",shape=note];
    tab         [label="目录/模块",shape=tab];
    db          [label="数据库",shape=box3d];
    component   [label="主机/组件",shape=component];
    
    /*图例关系*/
}

digraph G {
    /*全局设定*/
    graph [label=".dot图例-元素组合表达示例",
        labeljust="r",labelloc="t",center=1,
        ranksep=0.2,ratio=compress,
        rankdir=TB,
        ];

    node[fontsize=10.0,
        height=0.1,
        style=filled,fillcolor=snow,
        color=darkolivegreen,fontcolor=darkolivegreen,
        shape=plaintext,
        ];

    edge [fontsize=9.0,fontcolor=yellowgreen,
        color=gray30,
        ];

    /*图元声明*/
    start       [label="流程开始/结束",shape=point];
    end         [label="",shape=doublecircle,fillcolor=red];

    login       [label="登录",shape=box];
    alert       [label="提示\n错误",shape=box];
    PPCC        [label="PPCC",shape=box];

    act1        [label="act1",shape=ellipse];
    act2        [label="act2",shape=ellipse];

    user        [label="staff\nuser",shape=egg];

    tracstage   [label="传票:\nstage=try",shape=plaintext,fillcolor=whitesmoke];

    ksso        [label="KSSO",shape=diamond];

    ksso2       [label="KSSO将升级到\n KSSO2",shape=note];

    proxy       [label="反向代理",shape=component];
    staff       [label="Staff主机",shape=component];
    squery      [label="suery\nKSSO查询接口",shape=tab];
    s904        [label="Staff9.04实例",shape=tab];
    s906        [label="Staff9.06实例",shape=tab];
    pg          [label="pg数据仓库",shape=box3d];
    
    /*图例关系*/
    
    start->act1 [label="流程开始"];
    act1->tracstage->act2;
    act2->end   [label="流程结束"];
    
    user->login->ksso->alert;ksso->PPCC;
    ksso2->ksso [arrowtail=none,arrowhead=none,style=dashed]    
    
    proxy->staff->pg    [arrowtail=normal];
    s904->staff        [arrowhead=dot];
    s906->staff         [arrowhead=dot];
    squery->staff       [arrowhead=dot];
}

参考:在维基中使用 Graphviz