Module: Fractals::Renderers::RMagickRenderer

Defined in:
lib/fractals/renderers.rb

Overview

Renders fractals using the RMagick library.

Instance Method Summary collapse

Instance Method Details

#to_blob(file_format) ⇒ Object

Returns the fractal image as a BLOB of the specified file format.

Example:

mandelbrot = Mandelbrot.new<br /> mandelbrot.renderer = Renderers::RMagickRenderer<br /> blob = mandelbrot.to_blob(‘jpg’)



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# File 'lib/fractals/renderers.rb', line 129

def to_blob(file_format)
  image = Magick::Image.new(@width, @height)
  render do |x, y, color|
    image.pixel_color(x, y, "rgb(#{color.join(',')})")
  end

  image.to_blob { self.format = file_format; self.quality = 100 }
end

#write(file_path = 'fractal.png') ⇒ Object

Writes the image to the specified file path.



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# File 'lib/fractals/renderers.rb', line 139

def write(file_path='fractal.png')
  File.open(file_path, 'wb') do |file|
    file.write(to_blob(file_path.split('.').last))
  end
end