class Magick::RVG::Image

def initialize(image, width = nil, height = nil, x = 0, y = 0)

Use the RVG::ImageConstructors#image method to create Text objects in a container.
+width+ and +height+.
Composite a raster image in the viewport defined by [x,y] and 
def initialize(image, width = nil, height = nil, x = 0, y = 0)
  super()             # run module initializers
  @image = image.copy # use a copy of the image in case app. re-uses the argument
  @x, @y, @width, @height = Magick::RVG.convert_to_float(x, y, width || @image.columns, height || @image.rows)
  raise ArgumentError, 'width, height must be >= 0' if @width < 0 || @height < 0
  init_viewbox
end