Method: Pixelart::Image#led

Defined in:
lib/pixelart/led.rb

#led(led = 8, spacing: 2, round_corner: false) ⇒ Object 



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# File 'lib/pixelart/led.rb', line 5

def led( led=8, spacing: 2, round_corner: false )

  width  = @img.width*led  + (@img.width-1)*spacing
  height = @img.height*led + (@img.height-1)*spacing

  puts "  #{width}x#{height}"

  img = Image.new( width, height, Color::BLACK )

  @img.width.times do |x|
    @img.height.times do |y|
      pixel = @img[x,y]
      pixel = Color::BLACK  if pixel == Color::TRANSPARENT
      led.times do |n|
        led.times do |m|
          ## round a little - drop all four corners for now
          next  if round_corner &&
                  [[0,0],[0,1],[1,0],[1,1],[0,2],[2,0],
                   [0,led-1],[0,led-2],[1,led-1],[1,led-2],[0,led-3],[2,led-1],
                   [led-1,0],[led-1,1],[led-2,0],[led-2,1],[led-1,2],[led-3,0],
                   [led-1,led-1],[led-1,led-2],[led-2,led-1],[led-2,led-2],[led-1,led-3],[led-3,led-1],
                  ].include?( [n,m] )
          img[x*led+n + spacing*x,
              y*led+m + spacing*y] = pixel
        end
      end
    end
  end
  img
end