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Creating Topoplots with Julia
using ImageFiltering
using Images
using Colors
using Luxor
using ColorTypes: ARGB32
function drawimagematrix(m)
d = Drawing(500, 500, "test.png")
origin()
circle(O, 170, :clip)
w, h = size(m)
t = Tiler(500, 500, w, h)
mi = convertmatrixtocolors(m)
for (pos, n) in t
c = mi[t.currentrow, t.currentcol]
setcolor(c)
box(pos, t.tilewidth + 1, t.tileheight + 1, :fill)
end
sethue("black")
setline(1)
clipreset()
circle(O, 170, :stroke)
setline(2)
radius = 15
electrode_locations = [
O,
Point(-70, 0),
Point(70, 0),
Point(-140, 0),
Point(140, 0),
Point(0, 70),
Point(-50, 70),
Point(50, 70),
Point(0, -70),
Point(-50, -70),
Point(50, -70),
Point(115, -80),
Point(-115, -80),
Point(115, 80),
Point(-115, 80),
Point(40, -135),
Point(-40, -135),
Point(-190, -10),
Point(190, -10),
Point(-40, 135),
Point(40, 135),
]
electrode_names = [
"Cz",
"C3",
"C4",
"T3",
"T4",
"Pz",
"P3",
"P4",
"Fz",
"F3",
"F4",
"F8",
"F7",
"T6",
"T5",
"Fp2",
"Fp1",
"A1",
"A2",
"O1",
"O2",
]
electrode.(electrode_locations, "white", "black", :fill, radius, electrode_names)
finish()
return d
end
function convertmatrixtocolors(m)
return convert.(Colors.RGBA, m)
end
function electrode(
p = O,
fill_color = "white",
outline_color = "black",
action = :fill,
radius = 25,
circ_text = "",
)
sethue(fill_color)
circle(p, radius, :fill)
sethue(outline_color)
circle(p, radius, :stroke)
text(circ_text, p, valign = :middle, halign = :center)
end
test = @imagematrix begin
background("white")
t = Tiler(200, 200, 200, 200)
for (pos, n) in t
sethue(HSB(360 * noise(t.currentrow * 0.009, t.currentcol * 0.009), 1, 1))
box(pos, 1, 1, :fillstroke)
end
end 150 150
img = drawimagematrix(test)
#=
Uncomment to demonstrate creating synthetic data.
Can be an end point for actual EEG data in the future
=#
# I = [ARGB32(1, 1, rand(), 1) for _ = 1:30, _ = 1:30]
# for val in 1:length(I)
# if rand([true, false])
# I[val] = ARGB32(1, 0, 1, 1)
# end
# end
# img = imfilter(I, Kernel.gaussian(2))
# drawimagematrix(img)
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