class ChunkyPNG::Canvas

def initialize(width, height, initial = ChunkyPNG::Color::TRANSPARENT)

Parameters:
  • initial (Array) -- The initial pizel values. Must be an
  • height (Integer) -- The height in pixels of this canvas
  • width (Integer) -- The width in pixels of this canvas
  • background_color (Integer, ...) -- The initial background color of
  • height (Integer) -- The height in pixels of this canvas
  • width (Integer) -- The width in pixels of this canvas

Overloads:
  • initialize(width, height, initial)
  • initialize(width, height, background_color) 
def initialize(width, height, initial = ChunkyPNG::Color::TRANSPARENT)
  @width, @height = width, height
  if initial.is_a?(Array)
    pixel_count = width * height
    unless initial.length == pixel_count
      raise ArgumentError, "The initial array should have #{width}x#{height} = #{pixel_count} elements!"
    end
    @pixels = initial
  else
    @pixels = Array.new(width * height, ChunkyPNG::Color.parse(initial))
  end
end