Vibrating rectangles: Difference between revisions
add julia example
(Add Factor example) |
(add julia example) |
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Line 344:
vibRects.start();
}
</lang>
=={{header|Julia}}==
<lang julia>using Gtk, Graphics, Colors
const height, width, x0, y0 = 480, 640, 320, 240
const can = @GtkCanvas()
const win = GtkWindow(can, "Vibrating Rectangles", width, height)
const colrs = colormap("rdBu")
const sizes = collect(2:4:div(width, 2))
const params = [1, 2]
draw(can) do widget
ctx = getgc(can)
set_line_width(ctx, 1)
c = colrs[params[1]]
set_source_rgb(ctx, c.r, c.g, c.b)
i = sizes[params[2]]
rectangle(ctx, x0 - i, y0 - i, 2i, div(8i, 3))
stroke(ctx)
end
const cond = Condition()
endit(w) = notify(cond)
signal_connect(endit, win, :destroy)
draw(can)
show(can)
while true
params[1] = params[1] % 99 + 1
params[2] = params[2] % (length(sizes) - 1) + 1
draw(can)
show(can)
sleep(0.25)
end
</lang>
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