Class: Hornetseye::Node

Inherits:
Object
  • Object
show all
Defined in:
lib/hornetseye-rmagick/node.rb

Instance Method Summary collapse

Instance Method Details

#save_magick(file) ⇒ Object 



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# File 'lib/hornetseye-rmagick/node.rb', line 74

def save_magick( file )
  Magick::ImageList.new.push( to_magick ).write file
  self
end

#save_ubyte(file) ⇒ Object 



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# File 'lib/hornetseye-rmagick/node.rb', line 79

def save_ubyte( file )
  to_ubyte.save_magick file
end

#save_ubytergb(file) ⇒ Object 



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# File 'lib/hornetseye-rmagick/node.rb', line 91

def save_ubytergb( file )
  to_ubytergb.save_magick file
end

#save_uint(file) ⇒ Object 



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# File 'lib/hornetseye-rmagick/node.rb', line 87

def save_uint( file )
  to_uint.save_magick file
end

#save_uintrgb(file) ⇒ Object 



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# File 'lib/hornetseye-rmagick/node.rb', line 99

def save_uintrgb( file )
  to_uintrgb.save_magick file
end

#save_usint(file) ⇒ Object 



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# File 'lib/hornetseye-rmagick/node.rb', line 83

def save_usint( file )
  to_usint.save_magick file
end

#save_usintrgb(file) ⇒ Object 



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# File 'lib/hornetseye-rmagick/node.rb', line 95

def save_usintrgb( file )
  to_usintrgb.save_magick file
end

#to_magick ⇒ Object 



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# File 'lib/hornetseye-rmagick/node.rb', line 20

def to_magick
  unless dimension == 2
    raise "Array must have two dimensions (but has #{dimension})"
  end
  case typecode
  when UBYTE
    pixel_type = Magick::CharPixel
    colourspace = 'I'
    depth = 8
  when USINT
    pixel_type = Magick::ShortPixel
    colourspace = 'I'
    depth = 16
  when UINT
    pixel_type = Magick::IntegerPixel
    colourspace = 'I'
    depth = 32
  when SFLOAT
    pixel_type = Magick::FloatPixel
    colourspace = 'I'
    depth = nil
  when DFLOAT
    pixel_type = Magick::DoublePixel
    colourspace = 'I'
    depth = nil
  when UBYTERGB
    pixel_type = Magick::CharPixel
    colourspace = 'RGB'
    depth = 8
  when USINTRGB
    pixel_type = Magick::ShortPixel
    colourspace = 'RGB'
    depth = 16
  when UINTRGB
    pixel_type = Magick::IntegerPixel
    colourspace = 'RGB'
    depth = 32
  when SFLOATRGB
    pixel_type = Magick::FloatPixel
    colourspace = 'RGB'
    depth = nil
  when DFLOATRGB
    pixel_type = Magick::DoublePixel
    colourspace = 'RGB'
    depth = nil
  else
    raise "Conversion from #{typecode} to Magick::Image not implemented"
  end
  retval = Magick::Image.new( *shape ) { self.depth = depth if depth }
  retval.import_pixels 0, 0, shape[0], shape[1], colourspace,
                       memorise.memory.export, pixel_type
  retval
end