层次区分 Z-depth

当你有很多组数据需要表达的时候，你需要层次区分，大小区分，颜色区分等等。 比如你要画出下图：

你可以在文件中定义这样一些参数

hs1 1725862 8379128 fill_color=chr7,z=68,r0=0.4r-65.3669p,r1=0.4r+65.3669p
hs1 4080887 11075336 fill_color=chr8,z=66,r0=0.4r-68.719p,r1=0.4r+68.719p
hs1 5183662 14345280 fill_color=chr10,z=55,r0=0.4r-90.011p,r1=0.4r+90.011p
hs1 10044837 11066617 fill_color=chr1,z=95,r0=0.4r-10.0388p,r1=0.4r+10.0388p
hs1 10565297 13980978 fill_color=chr4,z=84,r0=0.4r-33.5584p,r1=0.4r+33.5584p
hs1 11557401 23262460 fill_color=chr13,z=43,r0=0.4r-115p,r1=0.4r+115p
hs1 12870075 25724192 fill_color=chr15,z=37,r0=0.4r-126.289p,r1=0.4r+126.289p
hs1 13920706 18409477 fill_color=chr5,z=78,r0=0.4r-44.1012p,r1=0.4r+44.1012p
hs1 25404101 33003848 fill_color=chr8,z=63,r0=0.4r-74.6659p,r1=0.4r+74.6659p

进行有效区分

源码conf here