Circos > Documentation > Tutorials > Highlights > Recipe3
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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.
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3 — Highlights

8. Recipe 3 - Plot Axis Range Highlights

circos.conf


<colors>
<<include etc/colors.conf>>
</colors>

<fonts>
<<include etc/fonts.conf>>
</fonts>

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

karyotype   = data/karyotype.human.txt

<image>
dir = /tmp
file  = circos-tutorial.png
# radius of inscribed circle in image
radius         = 1500p
background     = white
# by default angle=0 is at 3 o'clock position
angle_offset   = -90
</image>

chromosomes_units           = 1000000
chromosomes_display_default = yes

# same highlight set drawn at different radial positions
# and in different colors to highlight
# radial axis data range

<highlights>

<highlight>
file       = data/3/chr.highlights.colourless.txt
r0 = 0.715r
r1 = 0.725r
fill_color = lred
</highlight>

<highlight>
file       = data/3/chr.highlights.colourless.txt
r0 = 0.725r
r1 = 0.75r
fill_color = lorange
</highlight>

<highlight>
file       = data/3/chr.highlights.colourless.txt
r0 = 0.75r
r1 = 0.80r
fill_color = lyellow
</highlight>

<highlight>
file       = data/3/chr.highlights.colourless.txt
r0 = 0.8r
r1 = 0.9r
fill_color = lgrey
</highlight>

<highlight>
file       = data/3/chr.highlights.colourless.txt
r0 = 0.9r
r1 = 0.95r
fill_color = lyellow
</highlight>

<highlight>
file       = data/3/chr.highlights.colourless.txt
r0 = 0.95r
r1 = 0.975r
fill_color = lorange
</highlight>

<highlight>
file       = data/3/chr.highlights.colourless.txt
r0 = 0.975r
r1 = 0.985r
fill_color = lred
</highlight>

</highlights>

anglestep       = 0.025
minslicestep    = 5
beziersamples   = 40
debug           = no
warnings        = no
imagemap        = no

units_ok = bupr
units_nounit = n


ideogram.conf


<ideogram>

<spacing>

default = 3u
break   = 1u

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 = 3
thickness        = 1.5r
</break>

</spacing>

# thickness (px) of chromosome ideogram
thickness        = 100p
stroke_thickness = 2
# ideogram border color
stroke_color     = black
fill             = yes
# the default chromosome color is set here and any value
# defined in the karyotype file overrides it
fill_color       = black

# fractional radius position of chromosome ideogram within image
radius         = 0.85r
show_label     = yes
label_with_tag = yes
label_font     = condensedbold
label_radius   = dims(ideogram,radius) + 0.05r
label_size     = 48

# cytogenetic bands
band_stroke_thickness = 2

# show_bands determines whether the outline of cytogenetic bands
# will be seen
show_bands            = yes
# in order to fill the bands with the color defined in the karyotype
# file you must set fill_bands
fill_bands            = yes

</ideogram>



ticks.conf


show_ticks          = yes
show_tick_labels    = yes

show_grid          = yes
grid_start         = 0.5r
grid_end           = 1.0r

<ticks>
skip_first_label     = no
skip_last_label      = no
radius               = dims(ideogram,radius_outer)
tick_separation      = 2p
min_label_distance_to_edge = 10p
label_separation = 5p
label_offset     = 2p
label_size = 8p
multiplier = 1e-6
color = black

<tick>
spacing        = 1u
size           = 6p
thickness      = 1p
color          = black
show_label     = no
label_size     = 16p
label_offset   = 0p
format         = %.2f
grid           = no
grid_color     = grey
grid_thickness = 1p
</tick>
<tick>
spacing        = 5u
size           = 10p
thickness      = 1p
color          = black
show_label     = yes
label_size     = 16p
label_offset   = 0p
format         = %d
grid           = yes
grid_color     = grey
grid_thickness = 2p
</tick>
<tick>
spacing        = 10u
size           = 16p
thickness      = 2p
color          = black
show_label     = yes
label_size     = 16p
label_offset   = 0p
format         = %d
grid           = yes
grid_color     = vdgrey
grid_thickness = 2p
</tick>
</ticks>