grid3.rb

def fmt(l, f)

	w = l.max_by { |x| x.length }.length
	
	f.puts("set colors classic; \\")
	f.puts("plot \\")
	f.puts("[0:#{w}][0:#{l.size - 1}] '-' matrix with image title ''")
	
	l.each_with_index \
	{
		|z, i|
		
		c = w - z.length
		z[z.length...w] = '0' * c
		
		f.puts(z.split('').join(' '))
	}
	f.puts("eof")
	f.puts("eof")
	f.puts("pause -1;")
end

f = File.open(fn = "gnuplot1.cmd", 'w')
f.puts("set palette negative grayscale; unset colorbox;")
l = (f1 = File.open('out1.txt')).readlines.map { |x| x.strip }
f1.close
fmt(l, f)

l = l.map \
{
	|x|
	n = x.reverse.to_i(2) * 2 - 1
	raise if (n % 3 != 0)
	(n / 3).to_s(2).reverse
}

fmt(l, f)
f.close