# File mrplot/magick.rb, line 161
    def atom_marker(point, style)
      point = transform(point).cap
      
      if style.marker == :dot then
        applystyle(@gc, style, :line)
        @gc.line(point.x, point.y, point.x, point.y)
      elsif style.marker == :small_cross
        applystyle(@gc, style, :line)
        @gc.line(point.x-2, point.y, point.x+2, point.y)
        @gc.line(point.x, point.y+2, point.x, point.y-2)
      elsif style.marker == :cross
        applystyle(@gc, style, :line)
        @gc.line(point.x-3, point.y-3, point.x+3, point.y+3)
        @gc.line(point.x-3, point.y+3, point.x+3, point.y-3)
      elsif style.marker == :square
        applystyle(@gc, style, :stroke)
        @gc.rectangle(point.x-3, point.y-3, point.x+3, point.y+3)
      elsif style.marker == :circle
        applystyle(@gc, style, :stroke)
        @gc.circle(point.x, point.y, point.x+3, point.y)
      elsif style.marker == :image
        if style.marker_image 
          if !@image_cache[style.marker_image]
            @image_cache[style.marker_image] = ImageList.new(style.marker_image)
          end
          
          img     = @image_cache[style.marker_image]
          width   = img.columns
          height  = img.rows
          
          @gc.composite(point.x-width/2, point.y-height/2, 0,0, img)
        end
      end
    end