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为了画一个图一，于是想起了被自己嘲笑的圈图，以前写的脚本遗留在东家了，然后才有了后面的操作。
http://circos.ca/software/download/
按照官网介绍的操作，http://circos.ca/guide/
报perl包的错误：
*** REQUIRED MODULE(S) MISSING OR OUT-OF-DATE ***
You are missing one or more Perl modules, require newer versions, or some modules failed to load. Use CPAN to install it as described in this tutorial
http://www.circos.ca/documentation/tutorials/configuration/perl_and_modules
perl -MCPAN -e shell
install Params::Validate
yum install gd-devel
install GD
install GD::Polyline
ok~
看配置文件调吧，似乎不是太难，没有bug就不说了。