Circos > Documentation > Tutorials > Recipes > Data Id
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Circos at the EMBO NGS workshop in Tunis, Sept 15–25.

Use the latest version of Circos and read Circos best practices—these list recent important changes and identify sources of common problems.
If you are having trouble, post your issue to the Circos Google Group and include all files and detailed error logs. Please do not email me directly unless it is urgent—you are much more likely to receive a timely reply from the group.
Don't know what question to ask? Read Points of View: Visualizing Biological Data by Bang Wong, myself and invited authors from the Points of View series.

8 — Recipes

10. ID Fields

circos.conf


<<include etc/colors_fonts_patterns.conf>>

<<include ticks.conf>>
<<include ideogram.conf>>

<image>
<<include etc/image.conf>>
</image>

karyotype   = data/karyotype/karyotype.human.txt

chromosomes_units           = 1000000
chromosomes_display_default = no

chromosomes = hs21:29.99-31.01

<plots>

<plot>
file = data/8/repeats.withid.txt
r0   = 0.8r
r1   = 0.98r
orientation = in
type        = tile
layers      = 50
thickness   = 25p
padding     = 5p
margin      = 0.001u
color       = black
stroke_thickness = 2p
stroke_color = black

<rules>

<rule>
condition    = var(id) =~ /line/i
color        = green
flow         = continue
</rule>

<rule>
condition    = var(id) =~ /line[12]/i
stroke_color = red
</rule>

<rule>
condition    = var(id) =~ /sine/i
color        = blue
stroke_color = blue
</rule>

<rule>
condition    = var(id) =~ /simple/i
color        = dgrey
</rule>

<rule>
condition    = var(id) =~ /other/i
color        = lgrey
</rule>

</rules>

</plot>

<plot>

type = text
file = data/8/textid.txt

color      = black

label_font = bold
label_size = 36p
r0         = 0.51r
r1         = 0.7r

padding    = 15p
rpadding   = 15p

<rules>

<rule>
condition  = 1
color      = eval(sprintf("set2-4-qual-%d",remap_int(var(id),1,100,1,4)))
label_size = eval(sprintf("%dp",remap_int(var(id),1,100,12,48)))
</rule>
</rules>

</plot>

</plots>

<links>

<link>

file = data/8/linkid.txt

bezier_radius = 0r
radius        = 0.50r
crest         = 0.25

color     = dgrey
thickness = 2

<rules>
<rule>
# make sure that the id field matches the required number-number format
condition  = var(id) =~ /(\d+)-(\d+)/
thickness  = eval( my @match = "var(id)" =~ /(\d+)-(\d+)/; remap($match[0],1,100,1,10) )
z          = eval( my @match = "var(id)" =~ /(\d+)-(\d+)/; $match[0] )
color      = eval( my @match = "var(id)" =~ /(\d+)-(\d+)/; sprintf("spectral-9-div-%d_a%d", remap($match[1],1,100,1,9), remap($match[1],1,100,5,1 ) ) )
</rule>
</rules>
</link>

</links>

<<include etc/housekeeping.conf>>
data_out_of_range* = trim


bands.conf

show_bands            = yes
fill_bands            = yes
band_stroke_thickness = 2
band_stroke_color     = white
band_transparency     = 3


ideogram.conf


<ideogram>

<spacing>
default = 0.005r
break   = 0.5r

axis_break_at_edge = yes
axis_break         = yes
axis_break_style   = 2

<break_style 1>
stroke_color = black
fill_color   = blue
thickness    = 0.25r
stroke_thickness = 2
</break>

<break_style 2>
stroke_color     = black
stroke_thickness = 2
thickness        = 1.5r
</break>

</spacing>

<<include ideogram.position.conf>>
<<include ideogram.label.conf>>
<<include bands.conf>>

</ideogram>



ideogram.label.conf

show_label       = yes
label_font       = default
label_radius     = dims(image,radius) - 50p
label_size       = 36
label_parallel   = yes
label_case       = lower
label_format     = eval(sprintf("chr%s",var(label)))



ideogram.position.conf

radius           = 0.85r
thickness        = 30p
fill             = yes
fill_color       = black
stroke_thickness = 2
stroke_color     = black


ticks.conf


show_ticks          = yes
show_tick_labels    = yes

grid_start         = dims(ideogram,radius_inner)-0.5r
grid_end           = dims(ideogram,radius_outer)+100

<ticks>
skip_first_label     = no
skip_last_label      = no
radius               = dims(ideogram,radius_outer)
label_offset     = 2p
multiplier = 1e-6
color = black
size  = 20p
thickness = 4p

<tick>
spacing        = .005u
color          = black
show_label     = no
label_size     = 8p
label_offset   = 0p
format         = %2.f
grid           = yes
grid_color     = grey
grid_thickness = 1p
</tick>

<tick>
spacing        = .05u
color          = black
show_label     = yes
label_size     = 30p
label_offset   = 10p
format         = %.2f
grid           = yes
grid_color     = grey
grid_thickness = 1p
</tick>

<tick>
spacing        = .25u
color          = black
show_label     = yes
label_size     = 30p
label_offset   = 10p
format         = %.2f
grid           = yes
grid_color     = dgrey
grid_thickness = 1p
</tick>
</ticks>