如何优化graphviz中的布局，以删除不必要的边交点（交叉点）？

我正在准备DB关系的AutoMATC文档。工具是graphviz。我遇到的问题是，输出图像上节点的位置不合适，并且存在许多不必要的边相交。 是否有任何方法可以对图形进行优化，从而使结果具有最小边相交（交叉）

有向图结构{
节点[shape=Mrecord]；
重叠=“假”；
样条曲线=“真”；
布局=sfdp；
rankdir=LR；
ttype[label=“：：：：ttype:：| id |表|名称|类型|名称|概要”]；
tevents[label=“：：：：tevents:：：| id | id | tcase | id | t类型|概要|过期|打开”]；
toperationlog[label=“：：：：toperationlog:：：| id | executiondate | executiontime | query | id_tusers”]；
t文档[label=“：：：：t文档：：：| id | id | tcase | id | ttype | path | creationdate”]；
tcustomers_cases[标签=：：：tcustomers_cases:：：：| id_tcustomers | id_tcases“]；
tcases[label=“：：：：tcases:：：| id | creationdate | incomingdate | clousuredate |大纲|注释| id | ttype | id | tusers”]；
tusers[label=“：：：：：tusers:：| id |用户名|密码| firstname | lastname | role|u id”]；
t客户[label=“：：：：t客户：：：| id | firstname | lastname | email | phone | mobile | address”]；
tevents:id_tcases->tcases:id[arrowhead=“none”]；
t事件：id_t类型->t类型：id[arrowhead=“none”]；
toperationlog:id_tusers->tusers:id[arrowhead=“none”]；
t文档：id_tcases->tcases:id[arrowhead=“none”]；
t文档：id_t类型->t类型：id[arrowhead=“none”]；
t客户案例：id\u t客户->t客户：id[arrowhead=“none”]；
t客户案例：id\u tcases->tcases:id[arrowhead=“none”]；
tcases:id_ttype->ttype:id[arrowhead=“none”]；
tcases:id_tusers->tusers:id[arrowhead=“none”]；
}

设置为true将导致再次运行交叉最小化，这将通过减少边交叉的数量来改善图形的外观。

是否有这样做的算法？

    digraph structs {
      node [shape=Mrecord];
      overlap="false";
      splines="true";
      layout=sfdp;
      rankdir=LR;

      ttype[label="::: ttype :::|<id>id|<table_name>table_name|<type_name>type_name|<synopsis>synopsis"];
      tevents[label="::: tevents :::|<id>id|<id_tcases>id_tcases|<id_ttype>id_ttype|<synopsis>synopsis|<expiredate>expiredate|<open>open"];
      toperationlog[label="::: toperationlog :::|<id>id|<executiondate>executiondate|<executiontime>executiontime|<query>query|<id_tusers>id_tusers"];
      tdocuments[label="::: tdocuments :::|<id>id|<id_tcases>id_tcases|<id_ttype>id_ttype|<path>path|<creationdate>creationdate"];
      tcustomers_cases[label="::: tcustomers_cases :::|<id_tcustomers>id_tcustomers|<id_tcases>id_tcases"];
      tcases[label="::: tcases :::|<id>id|<creationdate>creationdate|<incomingdate>incomingdate|<clousuredate>clousuredate|<synopsis>synopsis|<notes>notes|<id_ttype>id_ttype|<id_tusers>id_tusers"];
      tusers[label="::: tusers :::|<id>id|<username>username|<password>password|<firstname>firstname|<lastname>lastname|<role_id>role_id"];
      tcustomers[label="::: tcustomers :::|<id>id|<firstname>firstname|<lastname>lastname|<email>email|<phone>phone|<mobile>mobile|<address>address"];

      tevents:id_tcases -> tcases:id [arrowhead="none"];
      tevents:id_ttype -> ttype:id [arrowhead="none"];
      toperationlog:id_tusers -> tusers:id [arrowhead="none"];
      tdocuments:id_tcases -> tcases:id [arrowhead="none"];
      tdocuments:id_ttype -> ttype:id [arrowhead="none"];
      tcustomers_cases:id_tcustomers -> tcustomers:id [arrowhead="none"];
      tcustomers_cases:id_tcases -> tcases:id [arrowhead="none"];
      tcases:id_ttype -> ttype:id [arrowhead="none"];
      tcases:id_tusers -> tusers:id [arrowhead="none"];
    }