Circos是一款非常不错的画图工具，可以广泛用于系统生物学、生物信息学。下面是相关介绍。
Circos is a software package for visualizing data and information. It visualizes data in a circular layout — this makes Circos ideal for exploring relationships between objects or positions. There are other reasons why a circular layout is advantageous, not the least being the fact that it is attractive.
Circos is ideal for creating publication-quality infographics and illustrations with a high data-to-ink ratio, richly layered data and pleasant symmetries. You have fine control each element in the figure to tailor its focus points and detail to your audience.
Circos can be used to display any kind of information. It’s particularly suitable for layering different data sets to create highly informative infographics with texture and visual appeal. Circos can make low-resolution bitmaps, suitable for basic web-based reporting, as well as publication-quality images with a lot of bling (but I mean legible, clear and informative bling!).
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