gistfile1.rb

require 'RMagick'
include Magick
width = 90
height = 100
matrix = 	[
		[0,1,0,0,0],
		[0,1,0,0,0],
		[0,0,1,0,0],
		[0,1,0,0,0],
		[0,1,0,0,0],
		[0,1,0,0,0],
		[0,0,1,0,0],
		[0,0,0,1,0],
		[0,0,0,0,1],		
		[0,1,0,0,0],
		[0,1,0,0,0],
		[0,0,1,0,0],
		[0,1,0,0,0],
		[0,1,0,0,0],
		[0,1,0,0,0],
		[0,0,1,0,0],
		[0,0,0,1,0],
		[0,0,0,0,1]
		]

canvas_height = height * matrix.size
canvas_width = width * matrix.first.size

canvas = Image.new(canvas_width, canvas_height,
              HatchFill.new('white','lightcyan2'))
gc = Draw.new
gc.stroke('blue')

count = 0
start_x,start_y = 0
finish_x,finish_y = 0
matrix.each_with_index do |row,row_index|
	row.each_with_index do |value, col_index| 
		if value == 1
			#finish drawing of the last bit
			if row_index >0
				finish_x = width * col_index
				finish_y = height * row_index
				#enposition
				gc.line(start_x, start_y, finish_x, finish_y)
			end
			# draw a line 
			start_x = width * col_index
			start_y = height * row_index
		end
	end

	gc.draw(canvas)
	if count < 10
		filename = "bezier0" + count.to_s + ".gif"
	else
		filename = "bezier" + count.to_s + ".gif"
	end
	canvas.write (filename)
	count +=1
end

# create a gif from all the .gifs here
animation = ImageList.new(*Dir["*.gif"].sort)
animation.delay = 10
animation.write("animated.gif")