# File lib/rvg/container.rb, line 103
        def initialize(element, x=0, y=0, width=nil, height=nil)
            super()

            # If the element is not a group, defs, symbol, or rvg,
            # wrap a group around it so it can get a transform and
            # possibly a new viewport.
            if ! element.respond_to?(:ref)
                @element = Group.new
                @element << element.deep_copy
            else
                @element = element.deep_copy
            end
            @element.ref(x, y, width, height)
        end