# File lib/rvg/container.rb, line 104
            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